2015-08-26 01:42:46 +00:00
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# Configuration of your builds with .gitlab-ci.yml
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From version 7.12, GitLab CI uses a [YAML](https://en.wikipedia.org/wiki/YAML)
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file (`.gitlab-ci.yml`) for the project configuration. It is placed in the root
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of your repository and contains definitions of how your project should be built.
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The YAML file defines a set of jobs with constraints stating when they should
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be run. The jobs are defined as top-level elements with a name and always have
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to contain the `script` clause:
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```yaml
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job1:
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script: "execute-script-for-job1"
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job2:
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script: "execute-script-for-job2"
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```
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The above example is the simplest possible CI configuration with two separate
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jobs, where each of the jobs executes a different command.
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Of course a command can execute code directly (`./configure;make;make install`)
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or run a script (`test.sh`) in the repository.
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Jobs are used to create builds, which are then picked up by
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[runners](../runners/README.md) and executed within the environment of the
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runner. What is important, is that each job is run independently from each
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other.
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## .gitlab-ci.yml
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The YAML syntax allows for using more complex job specifications than in the
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above example:
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```yaml
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image: ruby:2.2
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services:
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- postgres
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before_script:
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- bundle_install
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stages:
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- build
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- test
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- deploy
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job1:
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stage: build
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script:
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- execute-script-for-job1
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only:
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- master
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tags:
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- docker
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```
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2015-12-10 13:56:20 +00:00
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There are a few reserved `keywords` that **cannot** be used as job names:
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| Keyword | Required | Description |
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|---------------|----------|-------------|
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| image | no | Use docker image, covered in [Use Docker](../docker/README.md) |
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| services | no | Use docker services, covered in [Use Docker](../docker/README.md) |
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| stages | no | Define build stages |
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| types | no | Alias for `stages` |
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| before_script | no | Define commands that run before each job's script |
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| variables | no | Define build variables |
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| cache | no | Define list of files that should be cached between subsequent runs |
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### image and services
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This allows to specify a custom Docker image and a list of services that can be
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used for time of the build. The configuration of this feature is covered in
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separate document: [Use Docker](../docker/README.md).
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### before_script
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`before_script` is used to define the command that should be run before all
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builds, including deploy builds. This can be an array or a multi-line string.
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### stages
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`stages` is used to define build stages that can be used by jobs.
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The specification of `stages` allows for having flexible multi stage pipelines.
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The ordering of elements in `stages` defines the ordering of builds' execution:
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1. Builds of the same stage are run in parallel.
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1. Builds of next stage are run after success.
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Let's consider the following example, which defines 3 stages:
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```yaml
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stages:
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- build
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- test
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- deploy
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```
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1. First all jobs of `build` are executed in parallel.
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1. If all jobs of `build` succeeds, the `test` jobs are executed in parallel.
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1. If all jobs of `test` succeeds, the `deploy` jobs are executed in parallel.
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1. If all jobs of `deploy` succeeds, the commit is marked as `success`.
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1. If any of the previous jobs fails, the commit is marked as `failed` and no
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jobs of further stage are executed.
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There are also two edge cases worth mentioning:
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1. If no `stages` is defined in `.gitlab-ci.yml`, then by default the `build`,
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`test` and `deploy` are allowed to be used as job's stage by default.
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2. If a job doesn't specify `stage`, the job is assigned the `test` stage.
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### types
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2015-08-26 01:42:46 +00:00
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Alias for [stages](#stages).
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### variables
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_**Note:** Introduced in GitLab Runner v0.5.0._
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GitLab CI allows you to add to `.gitlab-ci.yml` variables that are set in build
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environment. The variables are stored in the git repository and are meant to
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store non-sensitive project configuration, for example:
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```yaml
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variables:
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DATABASE_URL: "postgres://postgres@postgres/my_database"
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```
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These variables can be later used in all executed commands and scripts.
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The YAML-defined variables are also set to all created service containers,
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thus allowing to fine tune them.
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2015-11-10 21:48:13 +00:00
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### cache
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`cache` is used to specify a list of files and directories which should be
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cached between builds.
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**By default the caching is enabled per-job and per-branch.**
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If `cache` is defined outside the scope of the jobs, it means it is set
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globally and all jobs will use its definition.
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To cache all git untracked files and files in `binaries`:
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```yaml
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cache:
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untracked: true
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paths:
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- binaries/
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```
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2016-01-14 16:52:59 +00:00
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#### cache:key
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_**Note:** Introduced in GitLab Runner v1.0.0._
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The `key` directive allows you to define the affinity of caching
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between jobs, allowing to have a single cache for all jobs,
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cache per-job, cache per-branch or any other way you deem proper.
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2016-01-22 11:33:37 +00:00
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This allows you to fine tune caching, allowing you to cache data between
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different jobs or even different branches.
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2016-01-22 11:33:37 +00:00
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The `cache:key` variable can use any of the [predefined variables](../variables/README.md).
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---
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**Example configurations**
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To enable per-job caching:
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2016-01-22 11:33:37 +00:00
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```yaml
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cache:
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key: "$CI_BUILD_NAME"
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untracked: true
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```
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To enable per-branch caching:
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2016-01-22 11:33:37 +00:00
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```yaml
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cache:
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key: "$CI_BUILD_REF_NAME"
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untracked: true
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```
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To enable per-job and per-branch caching:
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2016-01-22 11:33:37 +00:00
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```yaml
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cache:
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key: "$CI_BUILD_NAME/$CI_BUILD_REF_NAME"
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untracked: true
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```
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To enable per-branch and per-stage caching:
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2016-01-22 11:33:37 +00:00
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```yaml
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cache:
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key: "$CI_BUILD_STAGE/$CI_BUILD_REF_NAME"
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untracked: true
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```
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2016-01-22 11:33:37 +00:00
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If you use **Windows Batch** to run your shell scripts you need to replace
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`$` with `%`:
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2016-01-14 16:52:59 +00:00
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2016-01-22 11:33:37 +00:00
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```yaml
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cache:
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key: "%CI_BUILD_STAGE%/%CI_BUILD_REF_NAME%"
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untracked: true
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```
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2015-08-26 01:42:46 +00:00
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## Jobs
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`.gitlab-ci.yml` allows you to specify an unlimited number of jobs. Each job
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must have a unique name, which is not one of the Keywords mentioned above.
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A job is defined by a list of parameters that define the build behavior.
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```yaml
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job_name:
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script:
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- rake spec
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- coverage
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stage: test
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only:
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- master
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except:
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- develop
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tags:
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- ruby
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- postgres
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allow_failure: true
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```
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| Keyword | Required | Description |
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|---------------|----------|-------------|
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| script | yes | Defines a shell script which is executed by runner |
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| stage | no (default: `test`) | Defines a build stage |
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| type | no | Alias for `stage` |
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| only | no | Defines a list of git refs for which build is created |
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| except | no | Defines a list of git refs for which build is not created |
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| tags | no | Defines a list of tags which are used to select runner |
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| allow_failure | no | Allow build to fail. Failed build doesn't contribute to commit status |
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| when | no | Define when to run build. Can be `on_success`, `on_failure` or `always` |
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| artifacts | no | Define list build artifacts |
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| cache | no | Define list of files that should be cached between subsequent runs |
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### script
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`script` is a shell script which is executed by the runner. For example:
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```yaml
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job:
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script: "bundle exec rspec"
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```
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This parameter can also contain several commands using an array:
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2015-08-26 01:42:46 +00:00
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```yaml
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job:
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script:
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- uname -a
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- bundle exec rspec
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```
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### stage
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`stage` allows to group build into different stages. Builds of the same `stage`
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are executed in `parallel`. For more info about the use of `stage` please check
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[stages](#stages).
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### only and except
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2015-12-10 13:56:20 +00:00
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`only` and `except` are two parameters that set a refs policy to limit when
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jobs are built:
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1. `only` defines the names of branches and tags for which the job will be
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built.
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2. `except` defines the names of branches and tags for which the job will
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**not** be built.
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There are a few rules that apply to the usage of refs policy:
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* `only` and `except` are inclusive. If both `only` and `except` are defined
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in a job specification, the ref is filtered by `only` and `except`.
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* `only` and `except` allow the use of regular expressions.
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* `only` and `except` allow the use of special keywords: `branches` and `tags`.
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* `only` and `except` allow to specify a repository path to filter jobs for
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forks.
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In the example below, `job` will run only for refs that start with `issue-`,
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whereas all branches will be skipped.
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```yaml
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job:
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# use regexp
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only:
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- /^issue-.*$/
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# use special keyword
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except:
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- branches
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```
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The repository path can be used to have jobs executed only for the parent
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repository and not forks:
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```yaml
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job:
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only:
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- branches@gitlab-org/gitlab-ce
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except:
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- master@gitlab-org/gitlab-ce
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```
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The above example will run `job` for all branches on `gitlab-org/gitlab-ce`,
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except master.
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2015-08-26 01:42:46 +00:00
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### tags
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2015-12-10 13:56:20 +00:00
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`tags` is used to select specific runners from the list of all runners that are
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allowed to run this project.
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2015-12-10 13:56:20 +00:00
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During the registration of a runner, you can specify the runner's tags, for
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example `ruby`, `postgres`, `development`.
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`tags` allow you to run builds with runners that have the specified tags
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assigned to them:
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```yaml
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job:
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tags:
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- ruby
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- postgres
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```
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2015-12-10 13:56:20 +00:00
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The specification above, will make sure that `job` is built by a runner that
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has both `ruby` AND `postgres` tags defined.
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2015-08-26 01:42:46 +00:00
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2015-10-15 13:08:31 +00:00
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### when
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2015-12-10 13:56:20 +00:00
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`when` is used to implement jobs that are run in case of failure or despite the
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failure.
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2015-10-15 13:08:31 +00:00
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2015-10-15 23:46:01 +00:00
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`when` can be set to one of the following values:
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2015-12-10 13:56:20 +00:00
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1. `on_success` - execute build only when all builds from prior stages
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succeeded. This is the default.
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1. `on_failure` - execute build only when at least one build from prior stages
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failed.
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2015-10-15 13:08:31 +00:00
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1. `always` - execute build despite the status of builds from prior stages.
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2015-12-10 13:56:20 +00:00
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For example:
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```yaml
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2015-10-15 13:08:31 +00:00
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stages:
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- build
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- cleanup_build
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- test
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- deploy
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- cleanup
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2015-12-10 13:56:20 +00:00
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build_job:
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2015-10-15 13:08:31 +00:00
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stage: build
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script:
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- make build
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|
2015-12-10 13:56:20 +00:00
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cleanup_build_job:
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2015-10-15 13:08:31 +00:00
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stage: cleanup_build
|
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script:
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|
- cleanup build when failed
|
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when: on_failure
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|
2015-12-10 13:56:20 +00:00
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test_job:
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2015-10-15 13:08:31 +00:00
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stage: test
|
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|
script:
|
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|
|
- make test
|
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|
2015-12-10 13:56:20 +00:00
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deploy_job:
|
2015-10-15 13:08:31 +00:00
|
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stage: deploy
|
|
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|
script:
|
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|
|
- make deploy
|
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|
2015-12-10 13:56:20 +00:00
|
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|
cleanup_job:
|
2015-10-15 13:08:31 +00:00
|
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|
stage: cleanup
|
|
|
|
script:
|
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|
|
- cleanup after builds
|
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|
|
when: always
|
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|
|
```
|
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|
|
|
|
|
|
The above script will:
|
2015-12-10 13:56:20 +00:00
|
|
|
|
|
|
|
1. Execute `cleanup_build_job` only when `build_job` fails
|
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|
|
2. Always execute `cleanup_job` as the last step in pipeline.
|
2015-10-15 13:08:31 +00:00
|
|
|
|
2015-10-12 21:47:32 +00:00
|
|
|
### artifacts
|
|
|
|
|
2015-12-17 19:01:57 +00:00
|
|
|
_**Note:** Introduced in GitLab Runner v0.7.0. Also, the Windows shell executor
|
|
|
|
does not currently support artifact uploads._
|
2015-11-21 19:25:07 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
`artifacts` is used to specify list of files and directories which should be
|
|
|
|
attached to build after success. Below are some examples.
|
2015-11-09 11:18:00 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
Send all files in `binaries` and `.config`:
|
2015-11-21 19:25:07 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
artifacts:
|
|
|
|
paths:
|
|
|
|
- binaries/
|
|
|
|
- .config
|
|
|
|
```
|
2015-11-09 11:18:00 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
Send all git untracked files:
|
2015-11-21 19:25:07 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
artifacts:
|
|
|
|
untracked: true
|
|
|
|
```
|
|
|
|
|
|
|
|
Send all git untracked files and files in `binaries`:
|
2015-10-12 21:47:32 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
artifacts:
|
|
|
|
untracked: true
|
|
|
|
paths:
|
|
|
|
- binaries/
|
|
|
|
```
|
2015-10-12 21:47:32 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
The artifacts will be send after a successful build success to GitLab, and will
|
|
|
|
be accessible in the GitLab UI to download.
|
2015-10-12 21:47:32 +00:00
|
|
|
|
2015-11-10 21:48:13 +00:00
|
|
|
### cache
|
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
_**Note:** Introduced in GitLab Runner v0.7.0._
|
2015-11-21 19:25:07 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
`cache` is used to specify list of files and directories which should be cached
|
|
|
|
between builds. Below are some examples:
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
Cache all files in `binaries` and `.config`:
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
rspec:
|
|
|
|
script: test
|
|
|
|
cache:
|
|
|
|
paths:
|
|
|
|
- binaries/
|
|
|
|
- .config
|
|
|
|
```
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
Cache all git untracked files:
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
rspec:
|
|
|
|
script: test
|
|
|
|
cache:
|
|
|
|
untracked: true
|
|
|
|
```
|
|
|
|
|
|
|
|
Cache all git untracked files and files in `binaries`:
|
|
|
|
|
|
|
|
```yaml
|
|
|
|
rspec:
|
|
|
|
script: test
|
|
|
|
cache:
|
|
|
|
untracked: true
|
|
|
|
paths:
|
|
|
|
- binaries/
|
|
|
|
```
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
Locally defined cache overwrites globally defined options. This will cache only
|
|
|
|
`binaries/`:
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
```yaml
|
|
|
|
cache:
|
|
|
|
paths:
|
|
|
|
- my/files
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
rspec:
|
|
|
|
script: test
|
|
|
|
cache:
|
|
|
|
paths:
|
|
|
|
- binaries/
|
|
|
|
```
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-12-10 13:56:20 +00:00
|
|
|
The cache is provided on best effort basis, so don't expect that cache will be
|
|
|
|
always present. For implementation details please check GitLab Runner.
|
2015-11-10 21:48:13 +00:00
|
|
|
|
2015-08-26 01:42:46 +00:00
|
|
|
## Validate the .gitlab-ci.yml
|
2015-12-10 13:56:20 +00:00
|
|
|
|
2015-08-26 01:42:46 +00:00
|
|
|
Each instance of GitLab CI has an embedded debug tool called Lint.
|
2015-12-10 13:56:20 +00:00
|
|
|
You can find the link under `/ci/lint` of your gitlab instance.
|
2015-08-26 01:42:46 +00:00
|
|
|
|
|
|
|
## Skipping builds
|
2015-12-10 13:56:20 +00:00
|
|
|
|
|
|
|
If your commit message contains `[ci skip]`, the commit will be created but the
|
|
|
|
builds will be skipped.
|