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RoboCI

RoboCI is virtualized environment runner for Continuous Integration servers. RoboCI is aimed to run Travis CI builds locally inside Docker containers as well creating custom build setup.

RoboCI is used to:

• create virtualized environments with Docker.
• run acceptance, functional, unit, integration tests in isolated containers.
• run Travis CI builds locally or on CI server.
• debug builds inside containers

Requirements

Requires Docker and Robo PHP Task Runner to be installed.

Installation

Use Composer

Create RoboFile.php in the root of your project (if it is not already there), by simply running robo.

Attach composer autoloader to include Codegyre\RoboCI into your RoboFile:

Now when you run robo you will see new commands in ci namespace.

RoboCI and PHP builds

Preparing Environment

RoboCI uses .travis.yml as a primary configuration for running travis builds. By default it will use davert/roboci-php image, created from Travis Cookbooks. It provides default travis environment with PHPs installed.

RoboCI will convert your .travis.yml file into its own format (see below) and store it in .roboci dir.

RoboCI creates an environment per PHP version listed in .travis.yml config. If you have configured php 5.5 in your travis CI you should see .roboci/5.5 created. Travis instructions are parsed and prepared to be executed with Docker:

• install and before_install sections will be stored to Dockerfile, which is used to build docker container.
• before_script section will be saved to start.sh, which is included into .bashrc in order to be executed on container run.
• script section will be saved into run.sh
• services will be stored to env.yml. All defined services will be executed before the main container and stopped afterwards.

Unlike OpenVZ, which Travis uses for creating virtualized containers, Docker does not provide true virtualization. It allows to execute different processes in its own namespaces. Each docker container is designed to run one process. It is not a technical but a design limitation. Because of this RoboCI implements its own way of executing services like mysql, postgresql, mongodb, etc. Rather then running services inside a build container, it creates linked containers per service. This makes behavior of RoboCI to be different then expected from TravisCI.

Take a note, that each time you update .travis.yml, you will need to rebuild environments with robo ci:travis-prepare command.

Optimizations

It is highly recommended that all operations that could be cached to be stored into install section of TravisCI. This will allow RoboCI to include them into Dockerfile and make Docker save them in intermediate containers.

If you are installing packages, or running composer install in before_script, you can move them to install to speed up containers launch.

Running Build

To run build you can use ci:run with environment as parameter. In case you want to run build for php 5.5 you, you should run

Much more useful to enter a built container without running tests. This will allow to run specific tests and debug them. You can call ci:shell for that. In case of PHP 5.5 this execute

Cleaning Up Old Builds

Main container and service containers may persist. In order to clean them, you can run

Reference

RoboCI stores build configurations in .roboci directory.

Services

RoboCI includes MySql, PostgreSql, MongoDb, and RabbitMQ as services. Each service will be executed in its own container and linked into main container. Service containers are built from recipes. Recipe includes Dockerfile and linkage instructions that wll be executed in main container. Mainly linking requires running socat on exposed ports of service container. See examples.

Customization

Creating own services

Services are created from recipes. If you want to add a recipe to RoboCI, please send a Pull Request. If you need your own service, create a .roboci/_recipe/servicename directory and put Dockerfile in it. There you may specify base service image and build instructions. Also you may add linking instructions by creating link.sh. Contents of link.sh will be executed in the main container.

By creating your own service you may redefine default ones.

Add additional services into .roboci/environment/env.yml.

Non-Travis Builds

RoboCI can be extended to execute custom builds without using Travis recipes and Travis configuration. To prepare raw RoboCI environment you should run

• You will need to prepare own build images and use it in Dockerfile.
• Custom services are defined in env.yml in services section.
• Preperation scripts placed in start.sh
• Run script placed in run.sh

Execute custom environment as usual:

Credits

Created by Michael Bodnarchuk @davert License MIT