Merge pull request #80 from orchardup/ship-0.2.1

Ship 0.2.1

.gitignore

@@ -1,4 +1,6 @@
 *.egg-info
 *.pyc
+/build
 /dist
-/_site
+/docs/_site
+/docs/.git-gh-pages

CHANGES.md

@@ -1,6 +1,39 @@
 Change log
 ==========
 
+0.2.1 (2014-02-04)
+------------------
+
+ - General improvements to error reporting (#77, #79)
+
+0.2.0 (2014-01-31)
+------------------
+
+ - Link services to themselves so run commands can access the running service. (#67)
+ - Much better documentation.
+ - Make service dependency resolution more reliable. (#48)
+ - Load Fig configurations with a `.yaml` extension. (#58)
+
+Big thanks to @cameronmaske, @mrchrisadams and @damianmoore for their help with this release.
+
+0.1.4 (2014-01-27)
+------------------
+
+ - Add a link alias without the project name. This makes the environment variables a little shorter: `REDIS_1_PORT_6379_TCP_ADDR`. (#54)
+
+0.1.3 (2014-01-23)
+------------------
+
+ - Fix ports sometimes being configured incorrectly. (#46)
+ - Fix log output sometimes not displaying. (#47)
+
+0.1.2 (2014-01-22)
+------------------
+
+ - Add `-T` option to `fig run` to disable pseudo-TTY. (#34)
+ - Fix `fig up` requiring the ubuntu image to be pulled to recreate containers. (#33) Thanks @cameronmaske!
+ - Improve reliability, fix arrow keys and fix a race condition in `fig run`. (#34, #39, #40)
+
 0.1.1 (2014-01-17)
 ------------------
 

README.md

@@ -2,10 +2,19 @@ Fig
 ===
 
 [![Build Status](https://travis-ci.org/orchardup/fig.png?branch=master)](https://travis-ci.org/orchardup/fig)
+[![PyPI version](https://badge.fury.io/py/fig.png)](http://badge.fury.io/py/fig)
 
-Punctual, lightweight development environments using Docker.
+Fast, isolated development environments using Docker.
 
-Fig is a tool for defining and running isolated application environments. You define the services which comprise your app in a simple, version-controllable YAML configuration file that looks like this:
+Define your app's environment with Docker so it can be reproduced anywhere:
+
+    FROM orchardup/python:2.7
+    ADD . /code
+    WORKDIR /code
+    RUN pip install -r requirements.txt
+    CMD python app.py
+
+Define the services that make up your app so they can be run together in an isolated environment:
 
 ```yaml
 web:
@@ -18,6 +27,8 @@ db:
   image: orchardup/postgresql
 ```
 
+(No more installing Postgres on your laptop!)
+
 Then type `fig up`, and Fig will start and run your entire app:
 
 ![example fig run](https://orchardup.com/static/images/fig-example-large.f96065fc9e22.gif)
@@ -29,257 +40,16 @@ There are commands to:
  - tail running services' log output
  - run a one-off command on a service
 
-Fig is a project from [Orchard](https://orchardup.com), a Docker hosting service. [Follow us on Twitter](https://twitter.com/orchardup) to keep up to date with Fig and other Docker news.
+Fig is a project from [Orchard](https://orchardup.com). [Follow us on Twitter](https://twitter.com/orchardup) to keep up to date with Fig and other Docker news.
 
+Installation and documentation
+------------------------------
 
-Getting started
----------------
+Full documentation is available on [Fig's website](http://orchardup.github.io/fig/).
 
-Let's get a basic Python web app running on Fig. It assumes a little knowledge of Python, but the concepts should be clear if you're not familiar with it.
+Running the test suite
+----------------------
 
-First, install Docker. If you're on OS X, you can use [docker-osx](https://github.com/noplay/docker-osx):
+    $ script/test
 
-    $ curl https://raw.github.com/noplay/docker-osx/master/docker-osx > /usr/local/bin/docker-osx
-    $ chmod +x /usr/local/bin/docker-osx
-    $ docker-osx shell
 
-Docker has guides for [Ubuntu](http://docs.docker.io/en/latest/installation/ubuntulinux/) and [other platforms](http://docs.docker.io/en/latest/installation/) in their documentation.
-
-Next, install Fig:
-
-    $ sudo pip install -U fig
-
-(This command also upgrades Fig when we release a new version. If you don’t have pip installed, try `brew install python` or `apt-get install python-pip`.)
-
-You'll want to make a directory for the project:
-
-    $ mkdir figtest
-    $ cd figtest
-
-Inside this directory, create `app.py`, a simple web app that uses the Flask framework and increments a value in Redis:
-
-```python
-from flask import Flask
-from redis import Redis
-import os
-app = Flask(__name__)
-redis = Redis(
-    host=os.environ.get('FIGTEST_REDIS_1_PORT_6379_TCP_ADDR'),
-    port=int(os.environ.get('FIGTEST_REDIS_1_PORT_6379_TCP_PORT'))
-)
-
-@app.route('/')
-def hello():
-    redis.incr('hits')
-    return 'Hello World! I have been seen %s times.' % redis.get('hits')
-
-if __name__ == "__main__":
-    app.run(host="0.0.0.0", debug=True)
-```
-
-We define our Python dependencies in a file called `requirements.txt`:
-
-    flask
-    redis
-
-And we define how to build this into a Docker image using a file called `Dockerfile`:
-
-    FROM stackbrew/ubuntu:13.10
-    RUN apt-get -qq update
-    RUN apt-get install -y python python-pip
-    ADD . /code
-    WORKDIR /code
-    RUN pip install -r requirements.txt
-    EXPOSE 5000
-    CMD python app.py
-
-That tells Docker to create an image with Python and Flask installed on it, run the command `python app.py`, and open port 5000 (the port that Flask listens on).
-
-We then define a set of services using `fig.yml`:
-
-    web:
-      build: .
-      ports:
-       - 5000:5000
-      volumes:
-       - .:/code
-      links:
-       - redis
-    redis:
-      image: orchardup/redis
-
-This defines two services:
-
- - `web`, which is built from `Dockerfile` in the current directory. It also says to forward the exposed port 5000 on the container to port 5000 on the host machine, connect up the Redis service, and mount the current directory inside the container so we can work on code without having to rebuild the image.
- - `redis`, which uses the public image [orchardup/redis](https://index.docker.io/u/orchardup/redis/). 
-
-Now if we run `fig up`, it'll pull a Redis image, build an image for our own code, and start everything up:
-
-    $ fig up
-    Pulling image orchardup/redis...
-    Building web...
-    Starting figtest_redis_1...
-    Starting figtest_web_1...
-    figtest_redis_1 | [8] 02 Jan 18:43:35.576 # Server started, Redis version 2.8.3
-    figtest_web_1 |  * Running on http://0.0.0.0:5000/
-
-Open up [http://localhost:5000](http://localhost:5000) in your browser (or [http://localdocker:5000](http://localdocker:5000) if you're using [docker-osx](https://github.com/noplay/docker-osx)) and you should see it running!
-
-If you want to run your services in the background, you can pass the `-d` flag to `fig up` and use `fig ps` to see what is currently running:
-
-    $ fig up -d
-    Starting figtest_redis_1...
-    Starting figtest_web_1...
-    $ fig ps
-            Name                 Command            State       Ports
-    -------------------------------------------------------------------
-    figtest_redis_1   /usr/local/bin/run         Up
-    figtest_web_1     /bin/sh -c python app.py   Up      5000->5000/tcp
-
-`fig run` allows you to run one-off commands for your services. For example, to see what environment variables are available to the `web` service:
-
-    $ fig run web env
-
-
-See `fig --help` other commands that are available.
-
-If you started Fig with `fig up -d`, you'll probably want to stop your services once you've finished with them:
-
-    $ fig stop
-
-That's more-or-less how Fig works. See the reference section below for full details on the commands, configuration file and environment variables. If you have any thoughts or suggestions, [open an issue on GitHub](https://github.com/orchardup/fig) or [email us](mailto:hello@orchardup.com).
-
-
-Reference
----------
-
-### fig.yml
-
-Each service defined in `fig.yml` must specify exactly one of `image` or `build`. Other keys are optional, and are analogous to their `docker run` command-line counterparts.
-
-As with `docker run`, options specified in the Dockerfile (e.g. `CMD`, `EXPOSE`, `VOLUME`, `ENV`) are respected by default - you don't need to specify them again in `fig.yml`.
-
-```yaml
--- Tag or partial image ID. Can be local or remote - Fig will attempt to pull if it doesn't exist locally.
-image: ubuntu
-image: orchardup/postgresql
-image: a4bc65fd
-
--- Path to a directory containing a Dockerfile. Fig will build and tag it with a generated name, and use that image thereafter.
-build: /path/to/build/dir
-
--- Override the default command.
-command: bundle exec thin -p 3000
-
--- Link to containers in another service (see "Communicating between containers").
-links:
- - db
- - redis
-
--- Expose ports. Either specify both ports (HOST:CONTAINER), or just the container port (a random host port will be chosen).
-ports:
- - 3000
- - 8000:8000
-
--- Map volumes from the host machine (HOST:CONTAINER).
-volumes:
- - cache/:/tmp/cache
-
--- Add environment variables.
-environment:
-  RACK_ENV: development
-```
-
-### Commands
-
-Most commands are run against one or more services. If the service is omitted, it will apply to all services.
-
-Run `fig [COMMAND] --help` for full usage.
-
-#### build
-
-Build or rebuild services.
-
-Services are built once and then tagged as `project_service`, e.g. `figtest_db`. If you change a service's `Dockerfile` or the contents of its build directory, you can run `fig build` to rebuild it.
-
-#### help
-
-Get help on a command.
-
-#### kill
-
-Force stop service containers.
-
-#### logs
-
-View output from services.
-
-#### ps
-
-List containers.
-
-#### rm
-
-Remove stopped service containers.
-
-
-#### run
-
-Run a one-off command on a service.
-
-For example:
-
-    $ fig run web python manage.py shell
-
-Note that this will not start any services that the command's service links to. So if, for example, your one-off command talks to your database, you will need to run `fig up -d db` first.
-
-#### scale
-
-Set number of containers to run for a service.
-
-Numbers are specified in the form `service=num` as arguments.
-For example:
-
-    $ fig scale web=2 worker=3
-
-#### start
-
-Start existing containers for a service.
-
-#### stop
-
-Stop running containers without removing them. They can be started again with `fig start`.
-
-#### up
-
-Build, (re)create, start and attach to containers for a service.
-
-By default, `fig up` will aggregate the output of each container, and when it exits, all containers will be stopped. If you run `fig up -d`, it'll start the containers in the background and leave them running.
-
-If there are existing containers for a service, `fig up` will stop and recreate them (preserving mounted volumes with [volumes-from]), so that changes in `fig.yml` are picked up.
-
-### Environment variables
-
-Fig uses [Docker links] to expose services' containers to one another. Each linked container injects a set of environment variables, each of which begins with the uppercase name of the container.
-
-<b><i>name</i>\_PORT</b><br>
-Full URL, e.g. `MYAPP_DB_1_PORT=tcp://172.17.0.5:5432`
-
-<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i></b><br>
-Full URL, e.g. `MYAPP_DB_1_PORT_5432_TCP=tcp://172.17.0.5:5432`
-
-<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_ADDR</b><br>
-Container's IP address, e.g. `MYAPP_DB_1_PORT_5432_TCP_ADDR=172.17.0.5`
-
-<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_PORT</b><br>
-Exposed port number, e.g. `MYAPP_DB_1_PORT_5432_TCP_PORT=5432`
-
-<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_PROTO</b><br>
-Protocol (tcp or udp), e.g. `MYAPP_DB_1_PORT_5432_TCP_PROTO=tcp`
-
-<b><i>name</i>\_NAME</b><br>
-Fully qualified container name, e.g. `MYAPP_DB_1_NAME=/myapp_web_1/myapp_db_1`
-
-
-[Docker links]: http://docs.docker.io/en/latest/use/port_redirection/#linking-a-container
-[volumes-from]: http://docs.docker.io/en/latest/use/working_with_volumes/

docs/.gitignore-gh-pages

@@ -0,0 +1 @@
+/_site

docs/Dockerfile

@@ -0,0 +1,10 @@
+FROM stackbrew/ubuntu:13.10
+RUN apt-get -qq update && apt-get install -y ruby1.8 bundler python
+RUN locale-gen en_US.UTF-8
+ADD Gemfile /code/
+ADD Gemfile.lock /code/
+WORKDIR /code
+RUN bundle install
+ADD . /code
+EXPOSE 4000
+CMD bundle exec jekyll build

docs/Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem 'github-pages'

docs/Gemfile.lock

@@ -0,0 +1,62 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    RedCloth (4.2.9)
+    blankslate (2.1.2.4)
+    classifier (1.3.3)
+      fast-stemmer (>= 1.0.0)
+    colorator (0.1)
+    commander (4.1.5)
+      highline (~> 1.6.11)
+    fast-stemmer (1.0.2)
+    ffi (1.9.3)
+    github-pages (12)
+      RedCloth (= 4.2.9)
+      jekyll (= 1.4.2)
+      kramdown (= 1.2.0)
+      liquid (= 2.5.4)
+      maruku (= 0.7.0)
+      rdiscount (= 2.1.7)
+      redcarpet (= 2.3.0)
+    highline (1.6.20)
+    jekyll (1.4.2)
+      classifier (~> 1.3)
+      colorator (~> 0.1)
+      commander (~> 4.1.3)
+      liquid (~> 2.5.2)
+      listen (~> 1.3)
+      maruku (~> 0.7.0)
+      pygments.rb (~> 0.5.0)
+      redcarpet (~> 2.3.0)
+      safe_yaml (~> 0.9.7)
+      toml (~> 0.1.0)
+    kramdown (1.2.0)
+    liquid (2.5.4)
+    listen (1.3.1)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9)
+      rb-kqueue (>= 0.2)
+    maruku (0.7.0)
+    parslet (1.5.0)
+      blankslate (~> 2.0)
+    posix-spawn (0.3.8)
+    pygments.rb (0.5.4)
+      posix-spawn (~> 0.3.6)
+      yajl-ruby (~> 1.1.0)
+    rb-fsevent (0.9.4)
+    rb-inotify (0.9.3)
+      ffi (>= 0.5.0)
+    rb-kqueue (0.2.0)
+      ffi (>= 0.5.0)
+    rdiscount (2.1.7)
+    redcarpet (2.3.0)
+    safe_yaml (0.9.7)
+    toml (0.1.0)
+      parslet (~> 1.5.0)
+    yajl-ruby (1.1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  github-pages

docs/_config.yml

@@ -0,0 +1 @@
+markdown: redcarpet

docs/_layouts/default.html

@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<html lang="en-gb">
+  <head>
+    <meta charset="utf-8">
+    <title>{{ page.title }}</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link href='http://fonts.googleapis.com/css?family=Lilita+One|Lato:300,400,700' rel='stylesheet' type='text/css'>
+    <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
+    <link rel="stylesheet" type="text/css" href="css/fig.css?{{ site.time | date:'%Y%m%d%U%H%N%S' }}">
+  </head>
+  <body>
+    <div class="container">
+      <div class="logo mobile-logo">
+        <a href="index.html">
+          <img src="img/logo.png">
+          Fig
+        </a>
+      </div>
+
+      <div class="content">{{ content }}</div>
+
+      <div class="sidebar">
+        <h1 class="logo">
+          <a href="index.html">
+            <img src="img/logo.png">
+            Fig
+          </a>
+        </h1>
+
+        <ul class="nav">
+          <li><a href="index.html">Home</a></li>
+          <li><a href="install.html">Install</a></li>
+          <li><a href="rails.html">Get started with Rails</a></li>
+          <li><a href="django.html">Get started with Django</a></li>
+          <li><a href="wordpress.html">Get started with Wordpress</a></li>
+        </ul>
+        <ul class="nav">
+          <li>Reference:</li>
+          <ul>
+            <li><a href="yml.html">fig.yml</a></li>
+            <li><a href="cli.html">Commands</a></li>
+            <li><a href="env.html">Environment variables</a></li>
+          </ul>
+        </ul>
+        <ul class="nav">
+          <li><a href="https://github.com/orchardup/fig">Fig on GitHub</a></li>
+          <li><a href="https://twitter.com/orchardup">Follow us on Twitter</a></li>
+          <li><a href="http://webchat.freenode.net/?channels=%23orchardup&uio=d4">#orchardup on Freenode</a></li>
+        </ul>
+
+        <div class="badges">
+          <iframe src="http://ghbtns.com/github-btn.html?user=orchardup&amp;repo=fig&amp;type=watch&amp;count=true" allowtransparency="true" frameborder="0" scrolling="0" width="100" height="20"></iframe>
+          <a href="https://twitter.com/share" class="twitter-share-button" data-url="http://orchardup.github.io/fig/">Tweet</a>
+        </div>
+      </div>
+    </div>
+      <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
+    <script>
+      (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+      (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+      m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+      })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+      ga('create', 'UA-43996733-3', 'orchardup.github.io');
+      ga('send', 'pageview');
+
+    </script>
+  </body>
+</html>

docs/cli.md

@@ -0,0 +1,81 @@
+---
+layout: default
+title: Fig CLI reference
+---
+
+CLI reference
+=============
+
+Most commands are run against one or more services. If the service is omitted, it will apply to all services.
+
+Run `fig [COMMAND] --help` for full usage.
+
+## build
+
+Build or rebuild services.
+
+Services are built once and then tagged as `project_service`, e.g. `figtest_db`. If you change a service's `Dockerfile` or the contents of its build directory, you can run `fig build` to rebuild it.
+
+## help
+
+Get help on a command.
+
+## kill
+
+Force stop service containers.
+
+## logs
+
+View output from services.
+
+## ps
+
+List containers.
+
+## rm
+
+Remove stopped service containers.
+
+
+## run
+
+Run a one-off command on a service.
+
+For example:
+
+    $ fig run web python manage.py shell
+
+Note that this will not start any services that the command's service links to. So if, for example, your one-off command talks to your database, you will need to run `fig up -d db` first.
+
+One-off commands are started in new containers with the same config as a normal container for that service, so volumes, links, etc will all be created as expected. The only thing different to a normal container is the command will be overridden with the one specified and no ports will be created in case they collide.
+
+Links are also created between one-off commands and the other containers for that service so you can do stuff like this:
+
+    $ fig run db /bin/sh -c "psql -h \$DB_1_PORT_5432_TCP_ADDR -U docker"
+
+## scale
+
+Set number of containers to run for a service.
+
+Numbers are specified in the form `service=num` as arguments.
+For example:
+
+    $ fig scale web=2 worker=3
+
+## start
+
+Start existing containers for a service.
+
+## stop
+
+Stop running containers without removing them. They can be started again with `fig start`.
+
+## up
+
+Build, (re)create, start and attach to containers for a service.
+
+By default, `fig up` will aggregate the output of each container, and when it exits, all containers will be stopped. If you run `fig up -d`, it'll start the containers in the background and leave them running.
+
+If there are existing containers for a service, `fig up` will stop and recreate them (preserving mounted volumes with [volumes-from]), so that changes in `fig.yml` are picked up.
+
+[volumes-from]: http://docs.docker.io/en/latest/use/working_with_volumes/

docs/css/fig.css

@@ -0,0 +1,180 @@
+body {
+  padding-top: 20px;
+  padding-bottom: 60px;
+  font-family: 'Lato', sans-serif;
+  font-weight: 300;
+  font-size: 18px;
+  color: #362;
+}
+
+h1, h2, h3, h4, h5, h6 {
+  font-family: 'Lato', sans-serif;
+  font-weight: 400;
+  color: #25594D;
+}
+
+h2, h3, h4, h5, h6 {
+  margin-top: 1.5em;
+}
+
+p {
+  margin: 20px 0;
+}
+
+a, a:hover, a:visited {
+  color: #4D9900;
+  text-decoration: underline;
+}
+
+pre, code {
+  border: none;
+  background: #D5E1B4;
+}
+
+code, pre code {
+  color: #484F40;
+}
+
+pre {
+  border-bottom: 2px solid #bec9a1;
+  font-size: 14px;
+}
+
+code {
+  font-size: 0.84em;
+}
+
+pre code {
+  background: none;
+}
+
+img {
+  max-width: 100%;
+}
+
+.container {
+  margin-left: 0;
+}
+
+.logo {
+  font-family: 'Lilita One', sans-serif;
+  font-size: 80px;
+  margin: 20px 0 40px 0;
+}
+
+.logo a {
+  color: #a41211;
+  text-decoration: none;
+}
+
+.logo img {
+  width: 80px;
+  vertical-align: -17px;
+}
+
+.mobile-logo {
+  text-align: center;
+}
+
+.sidebar {
+  font-size: 16px;
+}
+
+.sidebar a {
+  color: #a41211;
+}
+
+@media (max-width: 767px) {
+  .sidebar {
+    text-align: center;
+    margin-top: 40px;
+  }
+
+  .sidebar .logo {
+    display: none;
+  }
+}
+
+@media (min-width: 768px) {
+  .mobile-logo {
+    display: none;
+  }
+
+  .logo {
+    margin-top: 40px;
+  }
+
+  .content h1 {
+    margin: 60px 0 55px 0;
+  }
+
+  .sidebar {
+    position: fixed;
+    top: 0;
+    left: 0;
+    bottom: 0;
+    width: 280px;
+    overflow-y: auto;
+    padding-left: 40px;
+    border-right: 1px solid #ccc;
+  }
+
+  .content {
+    margin-left: 320px;
+    max-width: 650px;
+  }
+}
+
+.nav {
+  margin: 20px 0;
+}
+
+.nav li a {
+  display: block;
+  padding: 8px 0;
+  line-height: 1.2;
+  text-decoration: none;
+}
+
+.nav li a:hover, .nav li a:focus {
+  text-decoration: underline;
+  background: none;
+}
+
+.nav ul {
+  padding-left: 20px;
+  list-style: none;
+}
+
+.badges {
+  margin: 40px 0;
+}
+
+a.btn {
+  background: #25594D;
+  color: white;
+  text-transform: uppercase;
+  text-decoration: none;
+}
+
+a.btn:hover {
+  color: white;
+}
+
+.strapline {
+  font-size: 30px;
+}
+
+@media (min-width: 768px) {
+  .strapline {
+    font-size: 40px;
+    display: block;
+    line-height: 1.2;
+    margin-top: 25px;
+    margin-bottom: 35px;
+  }
+}
+
+strong {
+  font-weight: 700;
+}

docs/django.md

@@ -0,0 +1,93 @@
+---
+layout: default
+title: Getting started with Fig and Django
+---
+
+Getting started with Fig and Django
+===================================
+
+Let's use Fig to set up and run a Django/PostgreSQL app. Before starting, you'll need to have [Fig installed](install.html).
+
+Let's set up the three files that'll get us started. First, our app is going to be running inside a Docker container which contains all of its dependencies. We can define what goes inside that Docker container using a file called `Dockerfile`. It'll contain this to start with:
+
+    FROM orchardup/python:2.7
+    RUN apt-get update -qq && apt-get install -y python-psycopg2
+    RUN mkdir /code
+    WORKDIR /code
+    ADD requirements.txt /code/
+    RUN pip install -r requirements.txt
+    ADD . /code/
+
+That'll install our application inside an image with Python installed alongside all of our Python dependencies. For more information on how to write Dockerfiles, see the [Dockerfile tutorial](https://www.docker.io/learn/dockerfile/) and the [Dockerfile reference](http://docs.docker.io/en/latest/use/builder/).
+
+Second, we define our Python dependencies in a file called `requirements.txt`:
+
+    Django
+
+Simple enough. Finally, this is all tied together with a file called `fig.yml`. It describes the services that our app comprises of (a web server and database), what Docker images they use, how they link together, what volumes will be mounted inside the containers and what ports they expose.
+
+    db:
+      image: orchardup/postgresql
+      ports:
+        - 5432
+    web:
+      build: .
+      command: python manage.py runserver 0.0.0.0:8000
+      volumes:
+        - .:/code
+      ports:
+        - 8000:8000
+      links:
+        - db
+
+See the [`fig.yml` reference]() for more information on how it works.
+
+We can now start a Django project using `fig run`:
+
+    $ fig run web django-admin.py startproject figexample .
+
+First, Fig will build an image for the `web` service using the `Dockerfile`. It will then run `django-admin.py startproject figexample .` inside a container using that image.
+
+This will generate a Django app inside the current directory:
+
+    $ ls
+    Dockerfile       fig.yml          figexample       manage.py        requirements.txt
+
+First thing we need to do is set up the database connection. Replace the `DATABASES = ...` definition in `figexample/settings.py` to read:
+
+    DATABASES = {
+        'default': {
+            'ENGINE': 'django.db.backends.postgresql_psycopg2',
+            'NAME': 'docker',
+            'USER': 'docker',
+            'PASSWORD': 'docker',
+            'HOST': os.environ.get('DB_1_PORT_5432_TCP_ADDR'),
+            'PORT': os.environ.get('DB_1_PORT_5432_TCP_PORT'),
+        }
+    }
+
+These settings are determined by the [orchardup/postgresql](https://github.com/orchardup/docker-postgresql) Docker image we are using.
+
+Then, run `fig up`:
+
+    Recreating myapp_db_1...
+    Recreating myapp_web_1...
+    Attaching to myapp_db_1, myapp_web_1
+    myapp_db_1 |
+    myapp_db_1 | PostgreSQL stand-alone backend 9.1.11
+    myapp_db_1 | 2014-01-27 12:17:03 UTC LOG:  database system is ready to accept connections
+    myapp_db_1 | 2014-01-27 12:17:03 UTC LOG:  autovacuum launcher started
+    myapp_web_1 | Validating models...
+    myapp_web_1 |
+    myapp_web_1 | 0 errors found
+    myapp_web_1 | January 27, 2014 - 12:12:40
+    myapp_web_1 | Django version 1.6.1, using settings 'figexample.settings'
+    myapp_web_1 | Starting development server at http://0.0.0.0:8000/
+    myapp_web_1 | Quit the server with CONTROL-C.
+
+And your Django app should be running at [localhost:8000](http://localhost:8000) (or [localdocker:8000](http://localdocker:8000) if you're using docker-osx).
+
+You can also run management commands with Docker. To set up your database, for example, run `fig up` and in another terminal run:
+
+    $ fig run web python manage.py syncdb
+

docs/env.md

@@ -0,0 +1,31 @@
+---
+layout: default
+title: Fig environment variables reference
+---
+
+Environment variables reference
+===============================
+
+Fig uses [Docker links] to expose services' containers to one another. Each linked container injects a set of environment variables, each of which begins with the uppercase name of the container.
+
+To see what environment variables are available to a service, run `fig run SERVICE env`.
+
+<b><i>name</i>\_PORT</b><br>
+Full URL, e.g. `DB_1_PORT=tcp://172.17.0.5:5432`
+
+<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i></b><br>
+Full URL, e.g. `DB_1_PORT_5432_TCP=tcp://172.17.0.5:5432`
+
+<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_ADDR</b><br>
+Container's IP address, e.g. `DB_1_PORT_5432_TCP_ADDR=172.17.0.5`
+
+<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_PORT</b><br>
+Exposed port number, e.g. `DB_1_PORT_5432_TCP_PORT=5432`
+
+<b><i>name</i>\_PORT\_<i>num</i>\_<i>protocol</i>\_PROTO</b><br>
+Protocol (tcp or udp), e.g. `DB_1_PORT_5432_TCP_PROTO=tcp`
+
+<b><i>name</i>\_NAME</b><br>
+Fully qualified container name, e.g. `DB_1_NAME=/myapp_web_1/myapp_db_1`
+
+[Docker links]: http://docs.docker.io/en/latest/use/port_redirection/#linking-a-container

docs/fig.yml

@@ -0,0 +1,8 @@
+jekyll:
+  build: .
+  ports:
+   - 4000:4000
+  volumes:
+   - .:/code
+  environment:
+   - LANG=en_US.UTF-8

docs/index.md

@@ -0,0 +1,157 @@
+---
+layout: default
+title: Fig | Fast, isolated development environments using Docker
+---
+
+<strong class="strapline">Fast, isolated development environments using Docker.</strong>
+
+Define your app's environment with Docker so it can be reproduced anywhere:
+
+    FROM orchardup/python:2.7
+    ADD . /code
+    WORKDIR /code
+    RUN pip install -r requirements.txt
+
+Define the services that make up your app so they can be run together in an isolated environment:
+
+```yaml
+web:
+  build: .
+  command: python app.py
+  links:
+   - db
+  ports:
+   - 8000:8000
+db:
+  image: orchardup/postgresql
+```
+
+(No more installing Postgres on your laptop!)
+
+Then type `fig up`, and Fig will start and run your entire app:
+
+![example fig run](https://orchardup.com/static/images/fig-example-large.f96065fc9e22.gif)
+
+There are commands to:
+
+ - start, stop and rebuild services
+ - view the status of running services
+ - tail running services' log output
+ - run a one-off command on a service
+
+Fig is a project from [Orchard](https://orchardup.com). [Follow us on Twitter](https://twitter.com/orchardup) to keep up to date with Fig and other Docker news.
+
+
+Quick start
+-----------
+
+Let's get a basic Python web app running on Fig. It assumes a little knowledge of Python, but the concepts should be clear if you're not familiar with it.
+
+First, install Docker. If you're on OS X, you can use [docker-osx](https://github.com/noplay/docker-osx):
+
+    $ curl https://raw.github.com/noplay/docker-osx/0.7.6/docker-osx > /usr/local/bin/docker-osx
+    $ chmod +x /usr/local/bin/docker-osx
+    $ docker-osx shell
+
+Docker has guides for [Ubuntu](http://docs.docker.io/en/latest/installation/ubuntulinux/) and [other platforms](http://docs.docker.io/en/latest/installation/) in their documentation.
+
+Next, install Fig:
+
+    $ sudo pip install -U fig
+
+(This command also upgrades Fig when we release a new version. If you don’t have pip installed, try `brew install python` or `apt-get install python-pip`.)
+
+You'll want to make a directory for the project:
+
+    $ mkdir figtest
+    $ cd figtest
+
+Inside this directory, create `app.py`, a simple web app that uses the Flask framework and increments a value in Redis:
+
+```python
+from flask import Flask
+from redis import Redis
+import os
+app = Flask(__name__)
+redis = Redis(
+    host=os.environ.get('REDIS_1_PORT_6379_TCP_ADDR'),
+    port=int(os.environ.get('REDIS_1_PORT_6379_TCP_PORT'))
+)
+
+@app.route('/')
+def hello():
+    redis.incr('hits')
+    return 'Hello World! I have been seen %s times.' % redis.get('hits')
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", debug=True)
+```
+
+We define our Python dependencies in a file called `requirements.txt`:
+
+    flask
+    redis
+
+Next, we want to create a Docker image containing all of our app's dependencies. We specify how to build one using a file called `Dockerfile`:
+
+    FROM orchardup/python:2.7
+    ADD . /code
+    WORKDIR /code
+    RUN pip install -r requirements.txt
+
+This tells Docker to install Python, our code and our Python dependencies inside a Docker image. For more information on how to write Dockerfiles, see the [Dockerfile tutorial](https://www.docker.io/learn/dockerfile/) and the [Dockerfile reference](http://docs.docker.io/en/latest/use/builder/).
+
+We then define a set of services using `fig.yml`:
+
+    web:
+      build: .
+      command: python app.py
+      ports:
+       - 5000:5000
+      volumes:
+       - .:/code
+      links:
+       - redis
+    redis:
+      image: orchardup/redis
+
+This defines two services:
+
+ - `web`, which is built from `Dockerfile` in the current directory. It also says to run the command `python app.py` inside the image, forward the exposed port 5000 on the container to port 5000 on the host machine, connect up the Redis service, and mount the current directory inside the container so we can work on code without having to rebuild the image.
+ - `redis`, which uses the public image [orchardup/redis](https://index.docker.io/u/orchardup/redis/). 
+
+Now if we run `fig up`, it'll pull a Redis image, build an image for our own code, and start everything up:
+
+    $ fig up
+    Pulling image orchardup/redis...
+    Building web...
+    Starting figtest_redis_1...
+    Starting figtest_web_1...
+    figtest_redis_1 | [8] 02 Jan 18:43:35.576 # Server started, Redis version 2.8.3
+    figtest_web_1 |  * Running on http://0.0.0.0:5000/
+
+Open up [http://localhost:5000](http://localhost:5000) in your browser (or [http://localdocker:5000](http://localdocker:5000) if you're using [docker-osx](https://github.com/noplay/docker-osx)) and you should see it running!
+
+If you want to run your services in the background, you can pass the `-d` flag to `fig up` and use `fig ps` to see what is currently running:
+
+    $ fig up -d
+    Starting figtest_redis_1...
+    Starting figtest_web_1...
+    $ fig ps
+            Name                 Command            State       Ports
+    -------------------------------------------------------------------
+    figtest_redis_1   /usr/local/bin/run         Up
+    figtest_web_1     /bin/sh -c python app.py   Up      5000->5000/tcp
+
+`fig run` allows you to run one-off commands for your services. For example, to see what environment variables are available to the `web` service:
+
+    $ fig run web env
+
+
+See `fig --help` other commands that are available.
+
+If you started Fig with `fig up -d`, you'll probably want to stop your services once you've finished with them:
+
+    $ fig stop
+
+That's more-or-less how Fig works. See the reference section below for full details on the commands, configuration file and environment variables. If you have any thoughts or suggestions, [open an issue on GitHub](https://github.com/orchardup/fig) or [email us](mailto:hello@orchardup.com).

docs/install.md

@@ -0,0 +1,23 @@
+---
+layout: default
+title: Installing Fig
+---
+
+Installing Fig
+==============
+
+First, install Docker. If you're on OS X, you can use [docker-osx](https://github.com/noplay/docker-osx):
+
+    $ curl https://raw.github.com/noplay/docker-osx/0.7.6/docker-osx > /usr/local/bin/docker-osx
+    $ chmod +x /usr/local/bin/docker-osx
+    $ docker-osx shell
+
+Docker has guides for [Ubuntu](http://docs.docker.io/en/latest/installation/ubuntulinux/) and [other platforms](http://docs.docker.io/en/latest/installation/) in their documentation.
+
+Next, install Fig:
+
+    $ sudo pip install -U fig
+
+(This command also upgrades Fig when we release a new version. If you don’t have pip installed, try `brew install python` or `apt-get install python-pip`.)
+
+That should be all you need! Run `fig --version` to see if it worked.

docs/rails.md

@@ -0,0 +1,99 @@
+---
+layout: default
+title: Getting started with Fig and Rails
+---
+
+Getting started with Fig and Rails
+==================================
+
+We're going to use Fig to set up and run a Rails/PostgreSQL app. Before starting, you'll need to have [Fig installed](install.html).
+
+Let's set up the three files that'll get us started. First, our app is going to be running inside a Docker container which contains all of its dependencies. We can define what goes inside that Docker container using a file called `Dockerfile`. It'll contain this to start with:
+
+    FROM binaryphile/ruby:2.0.0-p247
+    RUN apt-get update -qq && apt-get install -y build-essential libpq-dev
+    RUN mkdir /myapp
+    WORKDIR /myapp
+    ADD Gemfile /myapp/Gemfile
+    RUN bundle install
+    ADD . /myapp
+
+That'll put our application code inside an image with Ruby, Bundler and all our dependencies. For more information on how to write Dockerfiles, see the [Dockerfile tutorial](https://www.docker.io/learn/dockerfile/) and the [Dockerfile reference](http://docs.docker.io/en/latest/use/builder/).
+
+Next, we have a bootstrap `Gemfile` which just loads Rails. It'll be overwritten in a moment by `rails new`.
+
+    source 'https://rubygems.org'
+    gem 'rails', '4.0.2'
+
+Finally, `fig.yml` is where the magic happens. It describes what services our app comprises (a database and a web app), how to get each one's Docker image (the database just runs on a pre-made PostgreSQL image, and the web app is built from the current directory), and the configuration we need to link them together and expose the web app's port.
+
+    db:
+      image: orchardup/postgresql
+      ports:
+        - 5432
+    web:
+      build: .
+      command: bundle exec rackup -p 3000
+      volumes:
+        - .:/myapp
+      ports:
+        - 3000:3000
+      links:
+        - db
+
+With those files in place, we can now generate the Rails skeleton app using `fig run`:
+
+    $ fig run web rails new . --force --database=postgresql --skip-bundle
+
+First, Fig will build the image for the `web` service using the `Dockerfile`. Then it'll run `rails new` inside a new container, using that image. Once it's done, you should have a fresh app generated:
+
+    $ ls
+    Dockerfile   app          fig.yml      tmp
+    Gemfile      bin          lib          vendor
+    Gemfile.lock config       log
+    README.rdoc  config.ru    public
+    Rakefile     db           test
+
+Uncomment the line in your new `Gemfile` which loads `therubyracer`, so we've got a Javascript runtime:
+
+    gem 'therubyracer', platforms: :ruby
+
+Now that we've got a new `Gemfile`, we need to build the image again. (This, and changes to the Dockerfile itself, should be the only times you'll need to rebuild).
+
+    $ fig build
+
+The app is now bootable, but we're not quite there yet. By default, Rails expects a database to be running on `localhost` - we need to point it at the `db` container instead. We also need to change the username and password to align with the defaults set by `orchardup/postgresql`.
+
+Open up your newly-generated `database.yml`. Replace its contents with the following:
+
+    development: &default
+      adapter: postgresql
+      encoding: unicode
+      database: myapp_development
+      pool: 5
+      username: docker
+      password: docker
+      host: <%= ENV.fetch('DB_1_PORT_5432_TCP_ADDR', 'localhost') %>
+      port: <%= ENV.fetch('DB_1_PORT_5432_TCP_PORT', '5432') %>
+
+    test:
+      <<: *default
+      database: myapp_test
+
+We can now boot the app.
+
+    $ fig up
+
+If all's well, you should see some PostgreSQL output, and then—after a few seconds—the familiar refrain:
+
+    myapp_web_1 | [2014-01-17 17:16:29] INFO  WEBrick 1.3.1
+    myapp_web_1 | [2014-01-17 17:16:29] INFO  ruby 2.0.0 (2013-11-22) [x86_64-linux-gnu]
+    myapp_web_1 | [2014-01-17 17:16:29] INFO  WEBrick::HTTPServer#start: pid=1 port=3000
+
+Finally, we just need to create the database. In another terminal, run:
+
+    $ fig run web rake db:create
+
+And we're rolling—see for yourself at [localhost:3000](http://localhost:3000) (or [localdocker:3000](http://localdocker:3000) if you're using docker-osx).
+
+![Screenshot of Rails' stock index.html](https://orchardup.com/static/images/fig-rails-screenshot.png)

docs/wordpress.md

@@ -0,0 +1,92 @@
+---
+layout: default
+title: Getting started with Fig and Wordpress
+---
+
+Getting started with Fig and Wordpress
+======================================
+
+Fig makes it nice and easy to run Wordpress in an isolated environment. [Install Fig](install.html), then write a `Dockerfile` which installs PHP and Wordpress:
+
+```
+FROM orchardup/php5
+
+ADD http://wordpress.org/wordpress-3.8.1.tar.gz /wordpress.tar.gz
+RUN tar -xzf /wordpress.tar.gz
+ADD wp-config.php /wordpress/wp-config.php
+
+ADD router.php /router.php
+```
+
+This instructs Docker on how to build an image that contains PHP and Wordpress. For more information on how to write Dockerfiles, see the [Dockerfile tutorial](https://www.docker.io/learn/dockerfile/) and the [Dockerfile reference](http://docs.docker.io/en/latest/use/builder/).
+
+Next up, `fig.yml` starts our web service and a separate MySQL instance:
+
+```
+web:
+  build: .
+  command: php -S 0.0.0.0:8000 -t /wordpress
+  ports:
+    - 8000:8000
+  links:
+    - db
+db:
+  image: orchardup/mysql
+  ports:
+    - 3306:3306
+  environment:
+    MYSQL_DATABASE: wordpress
+```
+
+Our Dockerfile relies on two supporting files - first up, `wp-config.php` is the standard Wordpress config file with a single change to make it read the MySQL host and port from the environment variables passed in by Fig:
+
+```
+<?php
+define('DB_NAME', 'wordpress');
+define('DB_USER', 'root');
+define('DB_PASSWORD', '');
+define('DB_HOST', getenv("DB_1_PORT_3306_TCP_ADDR") . ":" . getenv("DB_1_PORT_3306_TCP_PORT"));
+define('DB_CHARSET', 'utf8');
+define('DB_COLLATE', '');
+
+define('AUTH_KEY',         'put your unique phrase here');
+define('SECURE_AUTH_KEY',  'put your unique phrase here');
+define('LOGGED_IN_KEY',    'put your unique phrase here');
+define('NONCE_KEY',        'put your unique phrase here');
+define('AUTH_SALT',        'put your unique phrase here');
+define('SECURE_AUTH_SALT', 'put your unique phrase here');
+define('LOGGED_IN_SALT',   'put your unique phrase here');
+define('NONCE_SALT',       'put your unique phrase here');
+
+$table_prefix  = 'wp_';
+define('WPLANG', '');
+define('WP_DEBUG', false);
+
+if ( !defined('ABSPATH') )
+    define('ABSPATH', dirname(__FILE__) . '/');
+
+require_once(ABSPATH . 'wp-settings.php');
+```
+
+Finally, `router.php` tells PHP's built-in web server how to run Wordpress:
+
+```
+<?php
+
+$root = $_SERVER['DOCUMENT_ROOT'];
+chdir($root);
+$path = '/'.ltrim(parse_url($_SERVER['REQUEST_URI'])['path'],'/');
+set_include_path(get_include_path().':'.__DIR__);
+if(file_exists($root.$path))
+{
+    if(is_dir($root.$path) && substr($path,strlen($path) - 1, 1) !== '/')
+        $path = rtrim($path,'/').'/index.php';
+    if(strpos($path,'.php') === false) return false;
+    else {
+        chdir(dirname($root.$path));
+        require_once $root.$path;
+    }
+}else include_once 'index.php';
+```
+
+With those four files in place, run `fig up` and it'll pull and build the images we need, and then start the web and database containers. You'll then be able to visit Wordpress and set it up by visiting [localhost:8000](http://localhost:8000) - or [localdocker:8000](http://localdocker:8000) if you're using docker-osx.

docs/yml.md

@@ -0,0 +1,43 @@
+---
+layout: default
+title: fig.yml reference
+---
+
+fig.yml reference
+=================
+
+Each service defined in `fig.yml` must specify exactly one of `image` or `build`. Other keys are optional, and are analogous to their `docker run` command-line counterparts.
+
+As with `docker run`, options specified in the Dockerfile (e.g. `CMD`, `EXPOSE`, `VOLUME`, `ENV`) are respected by default - you don't need to specify them again in `fig.yml`.
+
+```yaml
+-- Tag or partial image ID. Can be local or remote - Fig will attempt to pull if it doesn't exist locally.
+image: ubuntu
+image: orchardup/postgresql
+image: a4bc65fd
+
+-- Path to a directory containing a Dockerfile. Fig will build and tag it with a generated name, and use that image thereafter.
+build: /path/to/build/dir
+
+-- Override the default command.
+command: bundle exec thin -p 3000
+
+-- Link to containers in another service (see "Communicating between containers").
+links:
+ - db
+ - redis
+
+-- Expose ports. Either specify both ports (HOST:CONTAINER), or just the container port (a random host port will be chosen).
+ports:
+ - 3000
+ - 8000:8000
+
+-- Map volumes from the host machine (HOST:CONTAINER).
+volumes:
+ - cache/:/tmp/cache
+
+-- Add environment variables.
+environment:
+  RACK_ENV: development
+```
+

fig/__init__.py

@@ -1,4 +1,4 @@
 from __future__ import unicode_literals
 from .service import Service
 
-__version__ = '0.1.1'
+__version__ = '0.2.1'

fig/cli/command.py

@@ -7,11 +7,13 @@ import logging
 import os
 import re
 import yaml
+import six
 
 from ..project import Project
+from ..service import ConfigError
 from .docopt_command import DocoptCommand
 from .formatter import Formatter
-from .utils import cached_property, docker_url
+from .utils import cached_property, docker_url, call_silently, is_mac, is_ubuntu
 from .errors import UserError
 
 log = logging.getLogger(__name__)
@@ -23,7 +25,29 @@ class Command(DocoptCommand):
         try:
             super(Command, self).dispatch(*args, **kwargs)
         except ConnectionError:
-            raise UserError("""
+            if call_silently(['which', 'docker']) != 0:
+                if is_mac():
+                    raise UserError("""
+Couldn't connect to Docker daemon. You might need to install docker-osx:
+
+https://github.com/noplay/docker-osx
+""")
+                elif is_ubuntu():
+                    raise UserError("""
+Couldn't connect to Docker daemon. You might need to install Docker:
+
+http://docs.docker.io/en/latest/installation/ubuntulinux/
+""")
+                else:
+                    raise UserError("""
+Couldn't connect to Docker daemon. You might need to install Docker:
+
+http://docs.docker.io/en/latest/installation/
+""")
+            elif call_silently(['which', 'docker-osx']) == 0:
+                raise UserError("Couldn't connect to Docker daemon - you might need to run `docker-osx shell`.")
+            else:
+                raise UserError("""
 Couldn't connect to Docker daemon at %s - is it running?
 
 If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
@@ -36,8 +60,9 @@ If it's at a non-standard location, specify the URL with the DOCKER_HOST environ
     @cached_property
     def project(self):
         try:
-            yaml_path = os.path.join(self.base_dir, 'fig.yml')
+            yaml_path = self.check_yaml_filename()
             config = yaml.load(open(yaml_path))
+
         except IOError as e:
             if e.errno == errno.ENOENT:
                 log.error("Can't find %s. Are you in the right directory?", os.path.basename(e.filename))
@@ -46,7 +71,10 @@ If it's at a non-standard location, specify the URL with the DOCKER_HOST environ
 
             exit(1)
 
-        return Project.from_config(self.project_name, config, self.client)
+        try:
+            return Project.from_config(self.project_name, config, self.client)
+        except ConfigError as e:
+            raise UserError(six.text_type(e))
 
     @cached_property
     def project_name(self):
@@ -60,3 +88,12 @@ If it's at a non-standard location, specify the URL with the DOCKER_HOST environ
     def formatter(self):
         return Formatter()
 
+    def check_yaml_filename(self):
+        if os.path.exists(os.path.join(self.base_dir, 'fig.yaml')):
+
+            log.warning("Fig just read the file 'fig.yaml' on startup, rather than 'fig.yml'")
+            log.warning("Please be aware that fig.yml the expected extension in most cases, and using .yaml can cause compatibility issues in future")
+
+            return os.path.join(self.base_dir, 'fig.yaml')
+        else:
+            return os.path.join(self.base_dir, 'fig.yml')

fig/cli/log_printer.py

@@ -6,6 +6,7 @@ from itertools import cycle
 
 from .multiplexer import Multiplexer
 from . import colors
+from .utils import split_buffer
 
 
 class LogPrinter(object):
@@ -31,8 +32,9 @@ class LogPrinter(object):
 
     def _make_log_generator(self, container, color_fn):
         prefix = color_fn(container.name + " | ")
-        for line in split_buffer(self._attach(container), '\n'):
-            yield prefix + line
+        # Attach to container before log printer starts running
+        line_generator = split_buffer(self._attach(container), '\n')
+        return (prefix + line.decode('utf-8') for line in line_generator)
 
     def _attach(self, container):
         params = {
@@ -43,21 +45,3 @@ class LogPrinter(object):
         params.update(self.attach_params)
         params = dict((name, 1 if value else 0) for (name, value) in list(params.items()))
         return container.attach(**params)
-
-def split_buffer(reader, separator):
-    """
-    Given a generator which yields strings and a separator string,
-    joins all input, splits on the separator and yields each chunk.
-    Requires that each input string is decodable as UTF-8.
-    """
-    buffered = ''
-
-    for data in reader:
-        lines = (buffered + data.decode('utf-8')).split(separator)
-        for line in lines[:-1]:
-            yield line + separator
-        if len(lines) > 1:
-            buffered = lines[-1]
-
-    if len(buffered) > 0:
-        yield buffered

fig/cli/main.py

@@ -4,12 +4,11 @@ import logging
 import sys
 import re
 import signal
-import sys
 
 from inspect import getdoc
 
 from .. import __version__
-from ..project import NoSuchService
+from ..project import NoSuchService, DependencyError
 from ..service import CannotBeScaledError
 from .command import Command
 from .formatter import Formatter
@@ -41,10 +40,7 @@ def main():
     except KeyboardInterrupt:
         log.error("\nAborting.")
         exit(1)
-    except UserError as e:
-        log.error(e.msg)
-        exit(1)
-    except NoSuchService as e:
+    except (UserError, NoSuchService, DependencyError) as e:
         log.error(e.msg)
         exit(1)
     except NoSuchCommand as e:
@@ -200,12 +196,20 @@ class TopLevelCommand(Command):
         Usage: run [options] SERVICE COMMAND [ARGS...]
 
         Options:
-            -d    Detached mode: Run container in the background, print new container name
+            -d    Detached mode: Run container in the background, print new
+                  container name
+            -T    Disable pseudo-tty allocation. By default `fig run`
+                  allocates a TTY.
         """
         service = self.project.get_service(options['SERVICE'])
+
+        tty = True
+        if options['-d'] or options['-T'] or not sys.stdin.isatty():
+            tty = False
+
         container_options = {
             'command': [options['COMMAND']] + options['ARGS'],
-            'tty': not options['-d'],
+            'tty': tty,
             'stdin_open': not options['-d'],
         }
         container = service.create_container(one_off=True, **container_options)
@@ -213,12 +217,7 @@ class TopLevelCommand(Command):
             service.start_container(container, ports=None)
             print(container.name)
         else:
-            with self._attach_to_container(
-                container.id,
-                interactive=True,
-                logs=True,
-                raw=True
-            ) as c:
+            with self._attach_to_container(container.id, raw=tty) as c:
                 service.start_container(container, ports=None)
                 c.run()
 
@@ -310,35 +309,15 @@ class TopLevelCommand(Command):
                 print("Gracefully stopping... (press Ctrl+C again to force)")
                 self.project.stop(service_names=options['SERVICE'])
 
-    def _attach_to_container(self, container_id, interactive, logs=False, stream=True, raw=False):
-        stdio = self.client.attach_socket(
-            container_id,
-            params={
-                'stdin': 1 if interactive else 0,
-                'stdout': 1,
-                'stderr': 0,
-                'logs': 1 if logs else 0,
-                'stream': 1 if stream else 0
-            },
-            ws=True,
-        )
-
-        stderr = self.client.attach_socket(
-            container_id,
-            params={
-                'stdin': 0,
-                'stdout': 0,
-                'stderr': 1,
-                'logs': 1 if logs else 0,
-                'stream': 1 if stream else 0
-            },
-            ws=True,
-        )
+    def _attach_to_container(self, container_id, raw=False):
+        socket_in = self.client.attach_socket(container_id, params={'stdin': 1, 'stream': 1})
+        socket_out = self.client.attach_socket(container_id, params={'stdout': 1, 'logs': 1, 'stream': 1})
+        socket_err = self.client.attach_socket(container_id, params={'stderr': 1, 'logs': 1, 'stream': 1})
 
         return SocketClient(
-            socket_in=stdio,
-            socket_out=stdio,
-            socket_err=stderr,
+            socket_in=socket_in,
+            socket_out=socket_out,
+            socket_err=socket_err,
             raw=raw,
         )
 

fig/cli/socketclient.py

@@ -1,7 +1,6 @@
 from __future__ import print_function
 # Adapted from https://github.com/benthor/remotty/blob/master/socketclient.py
 
-from select import select
 import sys
 import tty
 import fcntl
@@ -57,15 +56,15 @@ class SocketClient:
 
     def run(self):
         if self.socket_in is not None:
-            self.start_background_thread(target=self.send_ws, args=(self.socket_in, sys.stdin))
+            self.start_background_thread(target=self.send, args=(self.socket_in, sys.stdin))
 
         recv_threads = []
 
         if self.socket_out is not None:
-            recv_threads.append(self.start_background_thread(target=self.recv_ws, args=(self.socket_out, sys.stdout)))
+            recv_threads.append(self.start_background_thread(target=self.recv, args=(self.socket_out, sys.stdout)))
 
         if self.socket_err is not None:
-            recv_threads.append(self.start_background_thread(target=self.recv_ws, args=(self.socket_err, sys.stderr)))
+            recv_threads.append(self.start_background_thread(target=self.recv, args=(self.socket_err, sys.stderr)))
 
         for t in recv_threads:
             t.join()
@@ -76,10 +75,10 @@ class SocketClient:
         thread.start()
         return thread
 
-    def recv_ws(self, socket, stream):
+    def recv(self, socket, stream):
         try:
             while True:
-                chunk = socket.recv()
+                chunk = socket.recv(4096)
 
                 if chunk:
                     stream.write(chunk)
@@ -89,24 +88,21 @@ class SocketClient:
         except Exception as e:
             log.debug(e)
 
-    def send_ws(self, socket, stream):
+    def send(self, socket, stream):
         while True:
-            r, w, e = select([stream.fileno()], [], [])
+            chunk = stream.read(1)
 
-            if r:
-                chunk = stream.read(1)
-
-                if chunk == '':
-                    socket.send_close()
-                    break
-                else:
-                    try:
-                        socket.send(chunk)
-                    except Exception as e:
-                        if hasattr(e, 'errno') and e.errno == errno.EPIPE:
-                            break
-                        else:
-                            raise e
+            if chunk == '':
+                socket.close()
+                break
+            else:
+                try:
+                    socket.send(chunk)
+                except Exception as e:
+                    if hasattr(e, 'errno') and e.errno == errno.EPIPE:
+                        break
+                    else:
+                        raise e
 
     def destroy(self):
         if self.settings is not None:

fig/cli/utils.py

@@ -4,6 +4,8 @@ from __future__ import division
 import datetime
 import os
 import socket
+import subprocess
+import platform
 from .errors import UserError
 
 
@@ -83,3 +85,44 @@ def mkdir(path, permissions=0o700):
 
 def docker_url():
     return os.environ.get('DOCKER_HOST')
+
+
+def split_buffer(reader, separator):
+    """
+    Given a generator which yields strings and a separator string,
+    joins all input, splits on the separator and yields each chunk.
+
+    Unlike string.split(), each chunk includes the trailing
+    separator, except for the last one if none was found on the end
+    of the input.
+    """
+    buffered = str('')
+    separator = str(separator)
+
+    for data in reader:
+        buffered += data
+        while True:
+            index = buffered.find(separator)
+            if index == -1:
+                break
+            yield buffered[:index+1]
+            buffered = buffered[index+1:]
+
+    if len(buffered) > 0:
+        yield buffered
+
+
+def call_silently(*args, **kwargs):
+    """
+    Like subprocess.call(), but redirects stdout and stderr to /dev/null.
+    """
+    with open(os.devnull, 'w') as shutup:
+        return subprocess.call(*args, stdout=shutup, stderr=shutup, **kwargs)
+
+
+def is_mac():
+    return platform.system() == 'Darwin'
+
+
+def is_ubuntu():
+    return platform.system() == 'Linux' and platform.linux_distribution()[0] == 'Ubuntu'

fig/compat/functools.py

@@ -1,23 +0,0 @@
-
-# Taken from python2.7/3.3 functools
-def cmp_to_key(mycmp):
-    """Convert a cmp= function into a key= function"""
-    class K(object):
-        __slots__ = ['obj']
-        def __init__(self, obj):
-            self.obj = obj
-        def __lt__(self, other):
-            return mycmp(self.obj, other.obj) < 0
-        def __gt__(self, other):
-            return mycmp(self.obj, other.obj) > 0
-        def __eq__(self, other):
-            return mycmp(self.obj, other.obj) == 0
-        def __le__(self, other):
-            return mycmp(self.obj, other.obj) <= 0
-        def __ge__(self, other):
-            return mycmp(self.obj, other.obj) >= 0
-        def __ne__(self, other):
-            return mycmp(self.obj, other.obj) != 0
-        __hash__ = None
-    return K
-

fig/container.py

@@ -3,7 +3,7 @@ from __future__ import absolute_import
 
 class Container(object):
     """
-    Represents a Docker container, constructed from the output of 
+    Represents a Docker container, constructed from the output of
     GET /containers/:id:/json.
     """
     def __init__(self, client, dictionary, has_been_inspected=False):
@@ -38,6 +38,10 @@ class Container(object):
     def id(self):
         return self.dictionary['ID']
 
+    @property
+    def image(self):
+        return self.dictionary['Image']
+
     @property
     def short_id(self):
         return self.id[:10]
@@ -46,6 +50,10 @@ class Container(object):
     def name(self):
         return self.dictionary['Name'][1:]
 
+    @property
+    def name_without_project(self):
+        return '_'.join(self.dictionary['Name'].split('_')[1:])
+
     @property
     def number(self):
         try:

fig/packages/docker/client.py

@@ -69,9 +69,11 @@ class Client(requests.Session):
                  timeout=DEFAULT_TIMEOUT_SECONDS):
         super(Client, self).__init__()
         if base_url is None:
-            base_url = "unix://var/run/docker.sock"
-        if base_url.startswith('unix:///'):
+            base_url = "http+unix://var/run/docker.sock"
+        if 'unix:///' in base_url:
             base_url = base_url.replace('unix:/', 'unix:')
+        if base_url.startswith('unix:'):
+            base_url = "http+" + base_url
         if base_url.startswith('tcp:'):
             base_url = base_url.replace('tcp:', 'http:')
         if base_url.endswith('/'):
@@ -81,7 +83,7 @@ class Client(requests.Session):
         self._timeout = timeout
         self._auth_configs = auth.load_config()
 
-        self.mount('unix://', unixconn.UnixAdapter(base_url, timeout))
+        self.mount('http+unix://', unixconn.UnixAdapter(base_url, timeout))
 
     def _set_request_timeout(self, kwargs):
         """Prepare the kwargs for an HTTP request by inserting the timeout
@@ -122,7 +124,8 @@ class Client(requests.Session):
                           detach=False, stdin_open=False, tty=False,
                           mem_limit=0, ports=None, environment=None, dns=None,
                           volumes=None, volumes_from=None,
-                          network_disabled=False):
+                          network_disabled=False, entrypoint=None,
+                          cpu_shares=None, working_dir=None):
         if isinstance(command, six.string_types):
             command = shlex.split(str(command))
         if isinstance(environment, dict):
@@ -134,15 +137,12 @@ class Client(requests.Session):
             exposed_ports = {}
             for port_definition in ports:
                 port = port_definition
-                proto = None
+                proto = 'tcp'
                 if isinstance(port_definition, tuple):
                     if len(port_definition) == 2:
                         proto = port_definition[1]
                     port = port_definition[0]
-                exposed_ports['{0}{1}'.format(
-                    port,
-                    '/' + proto if proto else ''
-                )] = {}
+                exposed_ports['{0}/{1}'.format(port, proto)] = {}
             ports = exposed_ports
 
         if volumes and isinstance(volumes, list):
@@ -154,6 +154,7 @@ class Client(requests.Session):
         attach_stdin = False
         attach_stdout = False
         attach_stderr = False
+        stdin_once = False
 
         if not detach:
             attach_stdout = True
@@ -161,6 +162,7 @@ class Client(requests.Session):
 
             if stdin_open:
                 attach_stdin = True
+                stdin_once = True
 
         return {
             'Hostname':     hostname,
@@ -168,6 +170,7 @@ class Client(requests.Session):
             'User':         user,
             'Tty':          tty,
             'OpenStdin':    stdin_open,
+            'StdinOnce':    stdin_once,
             'Memory':       mem_limit,
             'AttachStdin':  attach_stdin,
             'AttachStdout': attach_stdout,
@@ -178,7 +181,10 @@ class Client(requests.Session):
             'Image':        image,
             'Volumes':      volumes,
             'VolumesFrom':  volumes_from,
-            'NetworkDisabled': network_disabled
+            'NetworkDisabled': network_disabled,
+            'Entrypoint':   entrypoint,
+            'CpuShares':    cpu_shares,
+            'WorkingDir':    working_dir
         }
 
     def _post_json(self, url, data, **kwargs):
@@ -219,7 +225,7 @@ class Client(requests.Session):
     def _stream_result(self, response):
         """Generator for straight-out, non chunked-encoded HTTP responses."""
         self._raise_for_status(response)
-        for line in response.iter_lines(chunk_size=1):
+        for line in response.iter_lines(chunk_size=1, decode_unicode=True):
             # filter out keep-alive new lines
             if line:
                 yield line + '\n'
@@ -409,11 +415,13 @@ class Client(requests.Session):
                          detach=False, stdin_open=False, tty=False,
                          mem_limit=0, ports=None, environment=None, dns=None,
                          volumes=None, volumes_from=None,
-                         network_disabled=False, name=None):
+                         network_disabled=False, name=None, entrypoint=None,
+                         cpu_shares=None, working_dir=None):
 
         config = self._container_config(
             image, command, hostname, user, detach, stdin_open, tty, mem_limit,
-            ports, environment, dns, volumes, volumes_from, network_disabled
+            ports, environment, dns, volumes, volumes_from, network_disabled,
+            entrypoint, cpu_shares, working_dir
         )
         return self.create_container_from_config(config, name)
 
@@ -475,27 +483,34 @@ class Client(requests.Session):
             return [x['Id'] for x in res]
         return res
 
-    def import_image(self, src, data=None, repository=None, tag=None):
+    def import_image(self, src=None, repository=None, tag=None, image=None):
         u = self._url("/images/create")
         params = {
             'repo': repository,
             'tag': tag
         }
-        try:
-            # XXX: this is ways not optimal but the only way
-            # for now to import tarballs through the API
-            fic = open(src)
-            data = fic.read()
-            fic.close()
-            src = "-"
-        except IOError:
-            # file does not exists or not a file (URL)
-            data = None
-        if isinstance(src, six.string_types):
-            params['fromSrc'] = src
-            return self._result(self._post(u, data=data, params=params))
 
-        return self._result(self._post(u, data=src, params=params))
+        if src:
+            try:
+                # XXX: this is ways not optimal but the only way
+                # for now to import tarballs through the API
+                fic = open(src)
+                data = fic.read()
+                fic.close()
+                src = "-"
+            except IOError:
+                # file does not exists or not a file (URL)
+                data = None
+            if isinstance(src, six.string_types):
+                params['fromSrc'] = src
+                return self._result(self._post(u, data=data, params=params))
+            return self._result(self._post(u, data=src, params=params))
+
+        if image:
+            params['fromImage'] = image
+            return self._result(self._post(u, data=None, params=params))
+
+        raise Exception("Must specify a src or image")
 
     def info(self):
         return self._result(self._get(self._url("/info")),
@@ -577,13 +592,13 @@ class Client(requests.Session):
         self._raise_for_status(res)
         json_ = res.json()
         s_port = str(private_port)
-        f_port = None
-        if s_port in json_['NetworkSettings']['PortMapping']['Udp']:
-            f_port = json_['NetworkSettings']['PortMapping']['Udp'][s_port]
-        elif s_port in json_['NetworkSettings']['PortMapping']['Tcp']:
-            f_port = json_['NetworkSettings']['PortMapping']['Tcp'][s_port]
+        h_ports = None
 
-        return f_port
+        h_ports = json_['NetworkSettings']['Ports'].get(s_port + '/udp')
+        if h_ports is None:
+            h_ports = json_['NetworkSettings']['Ports'].get(s_port + '/tcp')
+
+        return h_ports
 
     def pull(self, repository, tag=None, stream=False):
         registry, repo_name = auth.resolve_repository_name(repository)
@@ -695,8 +710,11 @@ class Client(requests.Session):
         start_config['PublishAllPorts'] = publish_all_ports
 
         if links:
+            if isinstance(links, dict):
+                links = six.iteritems(links)
+
             formatted_links = [
-                '{0}:{1}'.format(k, v) for k, v in sorted(six.iteritems(links))
+                '{0}:{1}'.format(k, v) for k, v in sorted(links)
             ]
 
             start_config['Links'] = formatted_links

fig/packages/docker/unixconn/unixconn.py

@@ -36,7 +36,7 @@ class UnixHTTPConnection(httplib.HTTPConnection, object):
     def connect(self):
         sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
         sock.settimeout(self.timeout)
-        sock.connect(self.base_url.replace("unix:/", ""))
+        sock.connect(self.base_url.replace("http+unix:/", ""))
         self.sock = sock
 
     def _extract_path(self, url):

fig/project.py

@@ -2,21 +2,36 @@ from __future__ import unicode_literals
 from __future__ import absolute_import
 import logging
 from .service import Service
-from .compat.functools import cmp_to_key
 
 log = logging.getLogger(__name__)
 
+
 def sort_service_dicts(services):
-    # Sort in dependency order
-    def cmp(x, y):
-        x_deps_y = y['name'] in x.get('links', [])
-        y_deps_x = x['name'] in y.get('links', [])
-        if x_deps_y and not y_deps_x:
-            return 1
-        elif y_deps_x and not x_deps_y:
-            return -1
-        return 0
-    return sorted(services, key=cmp_to_key(cmp))
+    # Get all services that are dependant on another.
+    dependent_services = [s for s in services if s.get('links')]
+    flatten_links = sum([s['links'] for s in dependent_services], [])
+    # Get all services that are not linked to and don't link to others.
+    non_dependent_sevices = [s for s in services if s['name'] not in flatten_links and not s.get('links')]
+    sorted_services = []
+    # Topological sort.
+    while dependent_services:
+        n = dependent_services.pop()
+        # Check if a service is dependent on itself, if so raise an error.
+        if n['name'] in n.get('links', []):
+            raise DependencyError('A service can not link to itself: %s' % n['name'])
+        sorted_services.append(n)
+        for l in n['links']:
+            # Get the linked service.
+            linked_service = next(s for s in services if l == s['name'])
+            # Check that there isn't a circular import between services.
+            if n['name'] in linked_service.get('links', []):
+                raise DependencyError('Circular import between %s and %s' % (n['name'], linked_service['name']))
+            # Check the linked service has no links and is not already in the
+            # sorted service list.
+            if not linked_service.get('links') and linked_service not in sorted_services:
+                sorted_services.insert(0, linked_service)
+    return non_dependent_sevices + sorted_services
+
 
 class Project(object):
     """
@@ -134,3 +149,11 @@ class NoSuchService(Exception):
 
     def __str__(self):
         return self.msg
+
+
+class DependencyError(Exception):
+    def __init__(self, msg):
+        self.msg = msg
+
+    def __str__(self):
+        return self.msg

fig/service.py

@@ -10,6 +10,14 @@ from .container import Container
 log = logging.getLogger(__name__)
 
 
+DOCKER_CONFIG_KEYS = ['image', 'command', 'hostname', 'user', 'detach', 'stdin_open', 'tty', 'mem_limit', 'ports', 'environment', 'dns', 'volumes', 'volumes_from', 'entrypoint']
+DOCKER_CONFIG_HINTS = {
+    'link': 'links',
+    'port': 'ports',
+    'volume': 'volumes',
+}
+
+
 class BuildError(Exception):
     pass
 
@@ -18,14 +26,27 @@ class CannotBeScaledError(Exception):
     pass
 
 
+class ConfigError(ValueError):
+    pass
+
+
 class Service(object):
     def __init__(self, name, client=None, project='default', links=[], **options):
         if not re.match('^[a-zA-Z0-9]+$', name):
-            raise ValueError('Invalid name: %s' % name)
+            raise ConfigError('Invalid name: %s' % name)
         if not re.match('^[a-zA-Z0-9]+$', project):
-            raise ValueError('Invalid project: %s' % project)
+            raise ConfigError('Invalid project: %s' % project)
         if 'image' in options and 'build' in options:
-            raise ValueError('Service %s has both an image and build path specified. A service can either be built to image or use an existing image, not both.' % name)
+            raise ConfigError('Service %s has both an image and build path specified. A service can either be built to image or use an existing image, not both.' % name)
+
+        supported_options = DOCKER_CONFIG_KEYS + ['build']
+
+        for k in options:
+            if k not in supported_options:
+                msg = "Unsupported config option for %s service: '%s'" % (name, k)
+                if k in DOCKER_CONFIG_HINTS:
+                    msg += " (did you mean '%s'?)" % DOCKER_CONFIG_HINTS[k]
+                raise ConfigError(msg)
 
         self.name = name
         self.client = client
@@ -143,9 +164,10 @@ class Service(object):
 
         intermediate_container = Container.create(
             self.client,
-            image='ubuntu',
+            image=container.image,
             command='echo',
             volumes_from=container.id,
+            entrypoint=None
         )
         intermediate_container.start()
         intermediate_container.wait()
@@ -171,9 +193,10 @@ class Service(object):
                 port = str(port)
                 if ':' in port:
                     external_port, internal_port = port.split(':', 1)
-                    port_bindings[int(internal_port)] = int(external_port)
                 else:
-                    port_bindings[int(port)] = None
+                    external_port, internal_port = (None, port)
+
+                port_bindings[internal_port] = external_port
 
         volume_bindings = {}
 
@@ -205,15 +228,18 @@ class Service(object):
             return max(numbers) + 1
 
     def _get_links(self):
-        links = {}
+        links = []
         for service in self.links:
             for container in service.containers():
-                links[container.name] = container.name
+                links.append((container.name, container.name))
+                links.append((container.name, container.name_without_project))
+        for container in self.containers():
+            links.append((container.name, container.name))
+            links.append((container.name, container.name_without_project))
         return links
 
     def _get_container_options(self, override_options, one_off=False):
-        keys = ['image', 'command', 'hostname', 'user', 'detach', 'stdin_open', 'tty', 'mem_limit', 'ports', 'environment', 'dns', 'volumes', 'volumes_from']
-        container_options = dict((k, self.options[k]) for k in keys if k in self.options)
+        container_options = dict((k, self.options[k]) for k in DOCKER_CONFIG_KEYS if k in self.options)
         container_options.update(override_options)
 
         container_options['name'] = self.next_container_name(one_off)
@@ -224,8 +250,8 @@ class Service(object):
                 port = str(port)
                 if ':' in port:
                     port = port.split(':')[-1]
-                if '/' not in port:
-                    port = "%s/tcp" % port
+                if '/' in port:
+                    port = tuple(port.split('/'))
                 ports.append(port)
             container_options['ports'] = ports
 

requirements-dev.txt

@@ -1,2 +1,2 @@
+mock==1.0.1
 nose==1.3.0
-unittest2==0.5.1

requirements.txt

@@ -1,7 +1,6 @@
-requests==1.2.3
-websocket-client==0.11.0
 docopt==0.6.1
 PyYAML==3.10
+requests==2.2.1
+six>=1.3.0
 texttable==0.8.1
-# docker requires six==1.3.0
-six==1.3.0
+websocket-client==0.11.0

script/build-docs

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+pushd docs
+fig run jekyll jekyll build
+popd

script/deploy-docs

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+script/build-docs
+
+set -ex
+
+pushd docs/_site
+
+export GIT_DIR=.git-gh-pages
+export GIT_WORK_TREE=.
+
+if [ ! -d "$GIT_DIR" ]; then
+  git init
+fi
+
+if !(git remote | grep origin); then
+  git remote add origin git@github.com:orchardup/fig.git
+fi
+
+git fetch origin
+git reset --soft origin/gh-pages
+
+echo ".git-gh-pages" > .gitignore
+
+git add -u
+git add .
+
+git commit -m "update" || echo "didn't commit"
+git push origin master:gh-pages
+
+popd

script/open-docs

@@ -0,0 +1,2 @@
+#!/bin/bash
+open file://`pwd`/docs/_site/index.html

script/travis

@@ -3,18 +3,21 @@
 # Exit on first error
 set -ex
 
+# Put Python eggs in a writeable directory
 export PYTHON_EGG_CACHE="/tmp/.python-eggs"
 
+# Activate correct virtualenv
 TRAVIS_PYTHON_VERSION=$1
 source /home/travis/virtualenv/python${TRAVIS_PYTHON_VERSION}/bin/activate
+
 env
 
 # Kill background processes on exit
-trap 'kill $(jobs -p)' SIGINT SIGTERM EXIT
+trap 'kill -9 $(jobs -p)' SIGINT SIGTERM EXIT
 
 # Start docker daemon
 docker -d -H unix:///var/run/docker.sock 2>> /dev/null >> /dev/null &
 sleep 2
 
 # $init is set by sekexe
-cd $(dirname $init)/.. && nosetests
+cd $(dirname $init)/.. && nosetests -v

setup.py

@@ -32,9 +32,10 @@ setup(
     name='fig',
     version=find_version("fig", "__init__.py"),
     description='Punctual, lightweight development environments using Docker',
-    url='https://github.com/orchardup/fig',
+    url='http://orchardup.github.io/fig/',
     author='Orchard Laboratories Ltd.',
     author_email='hello@orchardup.com',
+    license='BSD',
     packages=find_packages(),
     include_package_data=True,
     test_suite='nose.collector',

tests/cli_test.py

@@ -1,18 +1,35 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
-from . import unittest
+from .testcases import DockerClientTestCase
+from mock import patch
+from six import StringIO
 from fig.cli.main import TopLevelCommand
 
-class CLITestCase(unittest.TestCase):
+class CLITestCase(DockerClientTestCase):
     def setUp(self):
+        super(CLITestCase, self).setUp()
         self.command = TopLevelCommand()
         self.command.base_dir = 'tests/fixtures/simple-figfile'
 
+    def tearDown(self):
+        self.command.project.kill()
+        self.command.project.remove_stopped()
+
+    def test_yaml_filename_check(self):
+        self.command.base_dir = 'tests/fixtures/longer-filename-figfile'
+
+        project = self.command.project
+
+        self.assertTrue( project.get_service('definedinyamlnotyml'), "Service: definedinyamlnotyml should have been loaded from .yaml file" )
+
     def test_help(self):
         self.assertRaises(SystemExit, lambda: self.command.dispatch(['-h'], None))
 
-    def test_ps(self):
+    @patch('sys.stdout', new_callable=StringIO)
+    def test_ps(self, mock_stdout):
+        self.command.project.get_service('simple').create_container()
         self.command.dispatch(['ps'], None)
+        self.assertIn('fig_simple_1', mock_stdout.getvalue())
 
     def test_scale(self):
         project = self.command.project

tests/fixtures/longer-filename-figfile/fig.yaml

@@ -0,0 +1,3 @@
+definedinyamlnotyml:
+  image: ubuntu
+  command: /bin/sleep 300

tests/project_test.py

@@ -61,6 +61,10 @@ class ProjectTest(DockerClientTestCase):
         self.assertEqual(len(web.containers(stopped=True)), 1)
         self.assertEqual(len(db.containers(stopped=True)), 1)
 
+        # remove intermediate containers
+        for (service, container) in old:
+            container.remove()
+
     def test_start_stop_kill_remove(self):
         web = self.create_service('web')
         db = self.create_service('db')

tests/service_test.py

@@ -1,30 +1,34 @@
 from __future__ import unicode_literals
 from __future__ import absolute_import
 from fig import Service
-from fig.service import CannotBeScaledError
+from fig.service import CannotBeScaledError, ConfigError
 from .testcases import DockerClientTestCase
 
 
 class ServiceTest(DockerClientTestCase):
     def test_name_validations(self):
-        self.assertRaises(ValueError, lambda: Service(name=''))
+        self.assertRaises(ConfigError, lambda: Service(name=''))
 
-        self.assertRaises(ValueError, lambda: Service(name=' '))
-        self.assertRaises(ValueError, lambda: Service(name='/'))
-        self.assertRaises(ValueError, lambda: Service(name='!'))
-        self.assertRaises(ValueError, lambda: Service(name='\xe2'))
-        self.assertRaises(ValueError, lambda: Service(name='_'))
-        self.assertRaises(ValueError, lambda: Service(name='____'))
-        self.assertRaises(ValueError, lambda: Service(name='foo_bar'))
-        self.assertRaises(ValueError, lambda: Service(name='__foo_bar__'))
+        self.assertRaises(ConfigError, lambda: Service(name=' '))
+        self.assertRaises(ConfigError, lambda: Service(name='/'))
+        self.assertRaises(ConfigError, lambda: Service(name='!'))
+        self.assertRaises(ConfigError, lambda: Service(name='\xe2'))
+        self.assertRaises(ConfigError, lambda: Service(name='_'))
+        self.assertRaises(ConfigError, lambda: Service(name='____'))
+        self.assertRaises(ConfigError, lambda: Service(name='foo_bar'))
+        self.assertRaises(ConfigError, lambda: Service(name='__foo_bar__'))
 
         Service('a')
         Service('foo')
 
     def test_project_validation(self):
-        self.assertRaises(ValueError, lambda: Service(name='foo', project='_'))
+        self.assertRaises(ConfigError, lambda: Service(name='foo', project='_'))
         Service(name='foo', project='bar')
 
+    def test_config_validation(self):
+        self.assertRaises(ConfigError, lambda: Service(name='foo', port=['8000']))
+        Service(name='foo', ports=['8000'])
+
     def test_containers(self):
         foo = self.create_service('foo')
         bar = self.create_service('bar')
@@ -110,9 +114,10 @@ class ServiceTest(DockerClientTestCase):
         self.assertIn('/var/db', container.inspect()['Volumes'])
 
     def test_recreate_containers(self):
-        service = self.create_service('db', environment={'FOO': '1'}, volumes=['/var/db'])
+        service = self.create_service('db', environment={'FOO': '1'}, volumes=['/var/db'], entrypoint=['ps'])
         old_container = service.create_container()
-        self.assertEqual(old_container.dictionary['Config']['Env'], ['FOO=1'])
+        self.assertEqual(old_container.dictionary['Config']['Entrypoint'], ['ps'])
+        self.assertIn('FOO=1', old_container.dictionary['Config']['Env'])
         self.assertEqual(old_container.name, 'figtest_db_1')
         service.start_container(old_container)
         volume_path = old_container.inspect()['Volumes']['/var/db']
@@ -120,12 +125,16 @@ class ServiceTest(DockerClientTestCase):
         num_containers_before = len(self.client.containers(all=True))
 
         service.options['environment']['FOO'] = '2'
-        (old, new) = service.recreate_containers()
-        self.assertEqual(len(old), 1)
+        (intermediate, new) = service.recreate_containers()
+        self.assertEqual(len(intermediate), 1)
         self.assertEqual(len(new), 1)
 
         new_container = new[0]
-        self.assertEqual(new_container.dictionary['Config']['Env'], ['FOO=2'])
+        intermediate_container = intermediate[0]
+        self.assertEqual(intermediate_container.dictionary['Config']['Entrypoint'], None)
+
+        self.assertEqual(new_container.dictionary['Config']['Entrypoint'], ['ps'])
+        self.assertIn('FOO=2', new_container.dictionary['Config']['Env'])
         self.assertEqual(new_container.name, 'figtest_db_1')
         service.start_container(new_container)
         self.assertEqual(new_container.inspect()['Volumes']['/var/db'], volume_path)
@@ -149,8 +158,14 @@ class ServiceTest(DockerClientTestCase):
         db.start_container()
         web.start_container()
         self.assertIn('figtest_db_1', web.containers()[0].links())
-        db.stop(timeout=1)
-        web.stop(timeout=1)
+        self.assertIn('db_1', web.containers()[0].links())
+
+    def test_start_container_creates_links_to_its_own_service(self):
+        db1 = self.create_service('db')
+        db2 = self.create_service('db')
+        db1.start_container()
+        db2.start_container()
+        self.assertIn('db_1', db2.containers()[0].links())
 
     def test_start_container_builds_images(self):
         service = Service(
@@ -179,9 +194,14 @@ class ServiceTest(DockerClientTestCase):
     def test_start_container_creates_ports(self):
         service = self.create_service('web', ports=[8000])
         container = service.start_container().inspect()
-        self.assertIn('8000/tcp', container['HostConfig']['PortBindings'])
+        self.assertEqual(list(container['HostConfig']['PortBindings'].keys()), ['8000/tcp'])
         self.assertNotEqual(container['HostConfig']['PortBindings']['8000/tcp'][0]['HostPort'], '8000')
 
+    def test_start_container_creates_port_with_explicit_protocol(self):
+        service = self.create_service('web', ports=['8000/udp'])
+        container = service.start_container().inspect()
+        self.assertEqual(list(container['HostConfig']['PortBindings'].keys()), ['8000/udp'])
+
     def test_start_container_creates_fixed_external_ports(self):
         service = self.create_service('web', ports=['8000:8000'])
         container = service.start_container().inspect()

tests/sort_service_test.py

@@ -0,0 +1,103 @@
+from fig.project import sort_service_dicts, DependencyError
+from . import unittest
+
+
+class SortServiceTest(unittest.TestCase):
+    def test_sort_service_dicts_1(self):
+        services = [
+            {
+                'links': ['redis'],
+                'name': 'web'
+            },
+            {
+                'name': 'grunt'
+            },
+            {
+                'name': 'redis'
+            }
+        ]
+
+        sorted_services = sort_service_dicts(services)
+        self.assertEqual(len(sorted_services), 3)
+        self.assertEqual(sorted_services[0]['name'], 'grunt')
+        self.assertEqual(sorted_services[1]['name'], 'redis')
+        self.assertEqual(sorted_services[2]['name'], 'web')
+
+    def test_sort_service_dicts_2(self):
+        services = [
+            {
+                'links': ['redis', 'postgres'],
+                'name': 'web'
+            },
+            {
+                'name': 'postgres',
+                'links': ['redis']
+            },
+            {
+                'name': 'redis'
+            }
+        ]
+
+        sorted_services = sort_service_dicts(services)
+        self.assertEqual(len(sorted_services), 3)
+        self.assertEqual(sorted_services[0]['name'], 'redis')
+        self.assertEqual(sorted_services[1]['name'], 'postgres')
+        self.assertEqual(sorted_services[2]['name'], 'web')
+
+    def test_sort_service_dicts_circular_imports(self):
+        services = [
+            {
+                'links': ['redis'],
+                'name': 'web'
+            },
+            {
+                'name': 'redis',
+                'links': ['web']
+            },
+        ]
+
+        try:
+            sort_service_dicts(services)
+        except DependencyError as e:
+            self.assertIn('redis', e.msg)
+            self.assertIn('web', e.msg)
+        else:
+            self.fail('Should have thrown an DependencyError')
+
+    def test_sort_service_dicts_circular_imports_2(self):
+        services = [
+            {
+                'links': ['postgres', 'redis'],
+                'name': 'web'
+            },
+            {
+                'name': 'redis',
+                'links': ['web']
+            },
+            {
+                'name': 'postgres'
+            }
+        ]
+
+        try:
+            sort_service_dicts(services)
+        except DependencyError as e:
+            self.assertIn('redis', e.msg)
+            self.assertIn('web', e.msg)
+        else:
+            self.fail('Should have thrown an DependencyError')
+
+    def test_sort_service_dicts_self_imports(self):
+        services = [
+            {
+                'links': ['web'],
+                'name': 'web'
+            },
+        ]
+
+        try:
+            sort_service_dicts(services)
+        except DependencyError as e:
+            self.assertIn('web', e.msg)
+        else:
+            self.fail('Should have thrown an DependencyError')

tests/split_buffer_test.py

@@ -0,0 +1,37 @@
+from __future__ import unicode_literals
+from __future__ import absolute_import
+from fig.cli.utils import split_buffer
+from . import unittest
+
+class SplitBufferTest(unittest.TestCase):
+    def test_single_line_chunks(self):
+        def reader():
+            yield "abc\n"
+            yield "def\n"
+            yield "ghi\n"
+
+        self.assertEqual(list(split_buffer(reader(), '\n')), ["abc\n", "def\n", "ghi\n"])
+
+    def test_no_end_separator(self):
+        def reader():
+            yield "abc\n"
+            yield "def\n"
+            yield "ghi"
+
+        self.assertEqual(list(split_buffer(reader(), '\n')), ["abc\n", "def\n", "ghi"])
+
+    def test_multiple_line_chunk(self):
+        def reader():
+            yield "abc\ndef\nghi"
+
+        self.assertEqual(list(split_buffer(reader(), '\n')), ["abc\n", "def\n", "ghi"])
+
+    def test_chunked_line(self):
+        def reader():
+            yield "a"
+            yield "b"
+            yield "c"
+            yield "\n"
+            yield "d"
+
+        self.assertEqual(list(split_buffer(reader(), '\n')), ["abc\n", "d"])

tests/testcases.py

@@ -10,13 +10,16 @@ class DockerClientTestCase(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
         cls.client = Client(docker_url())
-        cls.client.pull('ubuntu')
+        cls.client.pull('ubuntu', tag='latest')
 
     def setUp(self):
         for c in self.client.containers(all=True):
             if c['Names'] and 'figtest' in c['Names'][0]:
                 self.client.kill(c['Id'])
                 self.client.remove_container(c['Id'])
+        for i in self.client.images():
+            if 'figtest' in i['Tag']:
+                self.client.remove_image(i)
 
     def create_service(self, name, **kwargs):
         return Service(