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build-configuration.md

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Build Configuration

By default Magnum CI will try to detect application environment by analyzing the application structure and dependencies (libraries, databases). To override default build execution settings and steps, you can define a .magnum.yml file under the project root. This configuration file will be used to run commands that are required to perform the build. Configuration file is a simple YAML-formatted file.

Build process is split into steps:

  • before_install - Commands to execute before main installation script
  • install - Command to execute project dependencies installation
  • before_script - Commands to execute before running the test suite
  • script - Commands to execute the main test suite
  • after_script - Commands to execute when test suite execution is complete

Commands defined in each section (except after_script) should return exit code = 0, otherwise the build process will be terminated and marked as failed.

Each specified command will be executed in shell. You can pass as many commands as you want.

Single command:

before_script: bundle install

Multiple commands:

before_script:
  - bundle install --path .bundle
  - npm install

Extended example:

before_install:
  - sudo apt-get install my-fancy-package

install:
  - bundle install --path .bundle --binstubs
  - npm install

before_script:
  - /etc/init.d/xvfb start

script:
  - bundle exec rspec spec/

after_script:
  - rm testfile

Language versions

Configuration file allows to set a specific language version you'd like to use on the project.

For ruby:

ruby: 2.0.0

For Node.js:

node: 0.10.0

For Go:

go: 1.0.3

System Services

Build image includes a set of services that are started automatically:

  • PostgreSQL
  • MySQL
  • MongoDB

Services that are not started automatically:

  • Redis
  • Memcached
  • ElasticSearch
  • Xvfb

You can define a services section of the config like that:

services:
  - redis-server
  - memcached
  - xvfb

And they'll be started before the test execution starts.

As an alternative to services section, you can use before_install :

before_install:
  - sudo /etc/init.d/redis-server start

Ruby Projects

Since most of ruby projects are using bundler to manage dependencies, Magnum CI build system does automatic discovery of whats being used in application. Supported services:

  • Redis
  • Memcached