Stoplight is a build monitoring tool that is largely based off greenscreen, but is much improved and expandable. To quickly name a few, Stoplight has:
- built-in support for Jenkins
- built-in support for Travis-CI(http://travis-ci.org)
- custom provider support
- community contributions
- full test suite
- resuable DSL
Stoplight is designed to be displayed on large television screens or monitors. It automatically resizes to fill the maximum real estate the screen can offer.
Stoplight is a Rack application, so you'll need to install Ruby and Rubygems before you can run Stoplight. Stoplight requires Ruby 1.9.x.
Start by cloning the application repository:
git clone [email protected]:customink/stoplight.git
And then bundle all the application's dependencies:
bundle install
Next, copy the config/servers.yml.example
file to config/servers.yml
:
cp config/servers.yml.example config/servers.yml
If you want to get up and running quickly and just see what Stoplight looks like, add the following to your configuration file. It will pull from Travis CI:
-
type: 'travis'
url: http://travis-ci.org/repositories.json
Start the server with the rackup
command:
rackup ./config.ru
Navigate to http://localhost:9292
and check it out! You should see the status of a bunch of builds. The screen will refresh every 15 seconds to keep itself up to date.
All configuration options are specified through the config/servers.yml
file we copied over before. There's significant documentation in that file on how to configure your servers.
All servers must specify a type
option. This tells Stoplight what provider it should use. For example, if you are using Travis CI, your provider is Travis
and the server type is travis
. If you were using a custom server, the configuration might look like:
-
type: 'my_server'
url: '...'
This would look for a provider named MyServer
under lib/stoplight/providers
. For more information on writing a custom provider, see the Contributing section.
If you have a lot of projects, you may want to selective display them on Stoplight. Luckily, this is just a simple configuration option. To ignore certain projects, just add the ignored_projects
field to the config. It even supports regular expressions:
-
type: 'travis'
url: 'http://travis-ci.org'
ignored_projects:
- /^rails-(.*)$/
- some_other_project
Conversely, you can choose to only show certain projects with the projects
option:
-
type: 'jenkins'
url: 'http://jenkins.mycompany.com/cc.xml'
projects:
- /^public-(.*)$/
- some_other_project
The development environment is configured with all kinds of goodies like Spork, Guard, and Foreman. If you're developing, just run foreman start
and code! As you write tests and code, Guard will run the tests, Spork will make it fast, and Growl will tell you if they passed or failed!
One of the larger goals of Stoplight was to server the open source community. As more Continuous Integration servers emerge, we needed a common DSL for interacting with them. This all arose when we wanted to add Travis CI support to Greenscreen. Greenscreen was written for CI's that conform to a standard that doesn't even exist anymore. Stoplight doesn't care how the data comes in from the provider!
A Provider
is really just a ruby class that defines two methods:
class MyProvider < Provider
def provider
'my provider'
end
def projects
# logic here
end
end
The provider
method is just a utility method that returns the name of the provider. The projects
method is the "magical" method. This is where a developer parses the data into the given specification. You should take a look in lib/stoplight/providers/sample.rb
for a good starting point.
If you are looking to change the design, add styles or javascripts, you'll need to know a little bit about the architecture of the application.
- All javascript should be written in coffeescript. The coffeescript files live in
app/assets/javascripts
. They are compiled topublic/javascripts
. - All css should be written in scss + compass. The scss files live in
app/assets/stylesheets
. They are compiled topublic/stylesheets
.
Deploying Green Screen to Heroku is a snap.
Of course, if your build servers aren't publicly accessible, Heroku won't be a great option. A Chef Cookbook for deploying Stoplight is available on the Opscode Community site. You can read more about both options in Nathen Harvey's blog. Note that, in his post, Nathen talks about Greenscreen. Stoplight can be deployed in the same manner.
- GreenScreen was original developed by martinjandrews.
- The former version of GreenScreen was a fork of the updates made by rsutphin.
- This version of Stoplight was written by sethvargo