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# Configuration of your jobs with .gitlab-ci.yml
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This document describes the usage of `.gitlab-ci.yml` , the file that is used by
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GitLab Runner to manage your project's jobs.
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If you want a quick introduction to GitLab CI, follow our
[quick start guide ](../quick_start/README.md ).
## .gitlab-ci.yml
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From version 7.12, GitLab CI uses a [YAML ](https://en.wikipedia.org/wiki/YAML )
file (`.gitlab-ci.yml`) for the project configuration. It is placed in the root
of your repository and contains definitions of how your project should be built.
The YAML file defines a set of jobs with constraints stating when they should
be run. The jobs are defined as top-level elements with a name and always have
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to contain at least the `script` clause:
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```yaml
job1:
script: "execute-script-for-job1"
job2:
script: "execute-script-for-job2"
```
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The above example is the simplest possible CI configuration with two separate
jobs, where each of the jobs executes a different command.
Of course a command can execute code directly (`./configure;make;make install`)
or run a script (`test.sh`) in the repository.
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Jobs are picked up by [Runners ](../runners/README.md ) and executed within the
environment of the Runner. What is important, is that each job is run
independently from each other.
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The YAML syntax allows for using more complex job specifications than in the
above example:
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```yaml
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image: ruby:2.1
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services:
- postgres
before_script:
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- bundle install
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after_script:
- rm secrets
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stages:
- build
- test
- deploy
job1:
stage: build
script:
- execute-script-for-job1
only:
- master
tags:
- docker
```
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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 ) |
| services | no | Use docker services, covered in [Use Docker ](../docker/README.md ) |
| stages | no | Define build stages |
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| types | no | Alias for `stages` (deprecated) |
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| before_script | no | Define commands that run before each job's script |
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| after_script | no | Define commands that run after each job's script |
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| variables | no | Define build variables |
| 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 job. The configuration of this feature is covered in
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[a separate document ](../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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jobs, including deploy jobs, but after the restoration of artifacts. This can
be an array or a multi-line string.
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### after_script
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> Introduced in GitLab 8.7 and requires Gitlab Runner v1.2
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`after_script` is used to define the command that will be run after for all
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jobs. This has to be an array or a multi-line string.
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### stages
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`stages` is used to define 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 jobs' execution:
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1. Jobs of the same stage are run in parallel.
1. Jobs of the next stage are run after the jobs from the previous stage
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complete successfully.
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Let's consider the following example, which defines 3 stages:
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```yaml
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stages:
- build
- test
- deploy
```
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1. First, all jobs of `build` are executed in parallel.
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1. If all jobs of `build` succeed, the `test` jobs are executed in parallel.
1. If all jobs of `test` succeed, the `deploy` jobs are executed in parallel.
1. If all jobs of `deploy` succeed, 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
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` are defined in `.gitlab-ci.yml` , then 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 a `stage` , the job is assigned the `test` stage.
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### types
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> Deprecated, and will be removed in 10.0. Use [stages](#stages) instead.
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Alias for [stages ](#stages ).
### variables
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> Introduced in GitLab Runner v0.5.0.
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GitLab CI allows you to add variables to `.gitlab-ci.yml` that are set in the
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job environment. The variables are stored in the Git repository and are meant
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to store non-sensitive project configuration, for example:
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```yaml
variables:
DATABASE_URL: "postgres://postgres@postgres/my_database"
```
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>**Note:**
Integers (as well as strings) are legal both for variable's name and value.
Floats are not legal and cannot be used.
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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. Variables can be also defined on a
[job level ](#job-variables ).
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Except for the user defined variables, there are also the ones set up by the
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Runner itself. One example would be `CI_COMMIT_REF_NAME` which has the value of
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the branch or tag name for which project is built. Apart from the variables
you can set in `.gitlab-ci.yml` , there are also the so called secret variables
which can be set in GitLab's UI.
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[Learn more about variables.][variables]
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### cache
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>
**Notes:**
- Introduced in GitLab Runner v0.7.0.
- Prior to GitLab 9.2, caches were restored after artifacts.
- From GitLab 9.2, caches are restored before artifacts.
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`cache` is used to specify a list of files and directories which should be
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cached between jobs. You can only use paths that are within the project
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workspace.
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**By default caching is enabled and shared between pipelines and jobs,
starting from GitLab 9.0**
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If `cache` is defined outside the scope of jobs, it means it is set
globally and all jobs will use that definition.
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Cache all files in `binaries` and `.config` :
```yaml
rspec:
script: test
cache:
paths:
- binaries/
- .config
```
Cache all Git untracked files:
```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/
```
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Locally defined cache overrides globally defined options. The following `rspec`
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job will cache only `binaries/` :
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```yaml
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cache:
paths:
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- my/files
rspec:
script: test
cache:
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key: rspec
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paths:
- binaries/
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```
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Note that since cache is shared between jobs, if you're using different
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paths for different jobs, you should also set a different **cache:key**
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otherwise cache content can be overwritten.
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The cache is provided on a best-effort basis, so don't expect that the cache
will be always present. For implementation details, please check GitLab Runner.
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#### cache:key
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> Introduced in GitLab Runner v1.0.0.
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The `key` directive allows you to define the affinity of caching
between jobs, allowing to have a single cache for all jobs,
cache per-job, cache per-branch or any other way you deem proper.
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This allows you to fine tune caching, allowing you to cache data between
different jobs or even different branches.
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The `cache:key` variable can use any of the [predefined variables ](../variables/README.md ).
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The default key is **default** across the project, therefore everything is
shared between each pipelines and jobs by default, starting from GitLab 9.0.
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---
**Example configurations**
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To enable per-job caching:
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```yaml
cache:
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key: "$CI_JOB_NAME"
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untracked: true
```
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To enable per-branch caching:
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```yaml
cache:
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key: "$CI_COMMIT_REF_NAME"
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untracked: true
```
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To enable per-job and per-branch caching:
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```yaml
cache:
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key: "$CI_JOB_NAME/$CI_COMMIT_REF_NAME"
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untracked: true
```
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To enable per-branch and per-stage caching:
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```yaml
cache:
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key: "$CI_JOB_STAGE/$CI_COMMIT_REF_NAME"
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untracked: true
```
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If you use **Windows Batch** to run your shell scripts you need to replace
`$` with `%` :
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```yaml
cache:
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key: "%CI_JOB_STAGE%/%CI_COMMIT_REF_NAME%"
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untracked: true
```
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If you use **Windows PowerShell** to run your shell scripts you need to replace
`$` with `$env:` :
```yaml
cache:
key: "$env:CI_JOB_STAGE/$env:CI_COMMIT_REF_NAME"
untracked: true
```
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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.
A job is defined by a list of parameters that define the job behavior.
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```yaml
job_name:
script:
- rake spec
- coverage
stage: test
only:
- master
except:
- develop
tags:
- ruby
- postgres
allow_failure: true
```
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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 |
| image | no | Use docker image, covered in [Using Docker Images ](../docker/using_docker_images.md#define-image-and-services-from-gitlab-ciyml ) |
| services | no | Use docker services, covered in [Using Docker Images ](../docker/using_docker_images.md#define-image-and-services-from-gitlab-ciyml ) |
| stage | no | Defines a job stage (default: `test` ) |
| type | no | Alias for `stage` |
| variables | no | Define job variables on a job level |
| only | no | Defines a list of git refs for which job is created |
| except | no | Defines a list of git refs for which job is not created |
| tags | no | Defines a list of tags which are used to select Runner |
| allow_failure | no | Allow job to fail. Failed job doesn't contribute to commit status |
| when | no | Define when to run job. Can be `on_success` , `on_failure` , `always` or `manual` |
| dependencies | no | Define other jobs that a job depends on so that you can pass artifacts between them|
| artifacts | no | Define list of [job artifacts ](../../user/project/pipelines/job_artifacts.md ) |
| cache | no | Define list of files that should be cached between subsequent runs |
| before_script | no | Override a set of commands that are executed before job |
| after_script | no | Override a set of commands that are executed after job |
| environment | no | Defines a name of environment to which deployment is done by this job |
| coverage | no | Define code coverage settings for a given job |
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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
job:
script: "bundle exec rspec"
```
This parameter can also contain several commands using an array:
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```yaml
job:
script:
- uname -a
- bundle exec rspec
```
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Sometimes, `script` commands will need to be wrapped in single or double quotes.
For example, commands that contain a colon (`:`) need to be wrapped in quotes so
that the YAML parser knows to interpret the whole thing as a string rather than
a "key: value" pair. Be careful when using special characters:
`:` , `{` , `}` , `[` , `]` , `,` , `&` , `*` , `#` , `?` , `|` , `-` , `<` , `>` , `=` , `!` , `%` , `@` , `` ` ` `.
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### stage
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`stage` allows to group jobs into different stages. Jobs of the same `stage`
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are executed in `parallel` . For more info about the use of `stage` please check
[stages ](#stages ).
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### only and except
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`only` and `except` are two parameters that set a refs policy to limit when
jobs are built:
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1. `only` defines the names of branches and tags for which the job will run.
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2. `except` defines the names of branches and tags for which the job will
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**not** run.
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There are a few rules that apply to the usage of refs policy:
* `only` and `except` are inclusive. If both `only` and `except` are defined
in a job specification, the ref is filtered by `only` and `except` .
* `only` and `except` allow the use of regular expressions.
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* `only` and `except` allow the use of special keywords:
`api` , `branches` , `external` , `tags` , `pushes` , `schedules` , `triggers` , and `web`
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* `only` and `except` allow to specify a repository path to filter jobs for
forks.
In the example below, `job` will run only for refs that start with `issue-` ,
whereas all branches will be skipped.
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```yaml
job:
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# use regexp
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only:
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- /^issue-.*$/
# use special keyword
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except:
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- branches
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```
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In this example, `job` will run only for refs that are tagged, or if a build is
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explicitly requested via an API trigger or a [Pipeline Schedule ](../../user/project/pipelines/schedules.md ).
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```yaml
job:
# use special keywords
only:
- tags
- triggers
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- schedules
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```
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The repository path can be used to have jobs executed only for the parent
repository and not forks:
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```yaml
job:
only:
- branches@gitlab-org/gitlab-ce
except:
- master@gitlab-org/gitlab-ce
```
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The above example will run `job` for all branches on `gitlab-org/gitlab-ce` ,
except master.
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### Job variables
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It is possible to define job variables using a `variables` keyword on a job
level. It works basically the same way as its [global-level equivalent ](#variables ),
but allows you to define job-specific variables.
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When the `variables` keyword is used on a job level, it overrides the global YAML
job variables and predefined ones. To turn off global defined variables
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in your job, define an empty hash:
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```yaml
job_name:
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variables: {}
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```
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Job variables priority is defined in the [variables documentation][variables].
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### tags
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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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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 jobs with Runners that have the specified tags
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assigned to them:
```yaml
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job:
tags:
- ruby
- postgres
```
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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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### allow_failure
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`allow_failure` is used when you want to allow a job to fail without impacting
the rest of the CI suite. Failed jobs don't contribute to the commit status.
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When enabled and the job fails, the pipeline will be successful/green for all
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intents and purposes, but a "CI build passed with warnings" message will be
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displayed on the merge request or commit or job page. This is to be used by
jobs that are allowed to fail, but where failure indicates some other (manual)
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steps should be taken elsewhere.
In the example below, `job1` and `job2` will run in parallel, but if `job1`
fails, it will not stop the next stage from running, since it's marked with
`allow_failure: true` :
```yaml
job1:
stage: test
script:
- execute_script_that_will_fail
allow_failure: true
job2:
stage: test
script:
- execute_script_that_will_succeed
job3:
stage: deploy
script:
- deploy_to_staging
```
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### when
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`when` is used to implement jobs that are run in case of failure or despite the
failure.
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`when` can be set to one of the following values:
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1. `on_success` - execute job only when all jobs from prior stages
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succeed. This is the default.
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1. `on_failure` - execute job only when at least one job from prior stages
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fails.
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1. `always` - execute job regardless of the status of jobs from prior stages.
1. `manual` - execute job manually (added in GitLab 8.10). Read about
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[manual actions ](#manual-actions ) below.
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For example:
```yaml
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stages:
- build
- cleanup_build
- test
- deploy
- cleanup
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build_job:
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stage: build
script:
- make build
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cleanup_build_job:
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stage: cleanup_build
script:
- cleanup build when failed
when: on_failure
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test_job:
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stage: test
script:
- make test
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deploy_job:
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stage: deploy
script:
- make deploy
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when: manual
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cleanup_job:
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stage: cleanup
script:
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- cleanup after jobs
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when: always
```
The above script will:
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1. Execute `cleanup_build_job` only when `build_job` fails.
2. Always execute `cleanup_job` as the last step in pipeline regardless of
success or failure.
3. Allow you to manually execute `deploy_job` from GitLab's UI.
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#### Manual actions
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> Introduced in GitLab 8.10.
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> Blocking manual actions were introduced in GitLab 9.0
> Protected actions were introduced in GitLab 9.2
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Manual actions are a special type of job that are not executed automatically;
they need to be explicitly started by a user. Manual actions can be started
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from pipeline, build, environment, and deployment views.
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An example usage of manual actions is deployment to production.
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Read more at the [environments documentation][env-manual].
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Manual actions can be either optional or blocking. Blocking manual action will
block execution of the pipeline at stage this action is defined in. It is
possible to resume execution of the pipeline when someone executes a blocking
manual actions by clicking a _play_ button.
When pipeline is blocked it will not be merged if Merge When Pipeline Succeeds
is set. Blocked pipelines also do have a special status, called _manual_ .
Manual actions are non-blocking by default. If you want to make manual action
blocking, it is necessary to add `allow_failure: false` to the job's definition
in `.gitlab-ci.yml` .
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Optional manual actions have `allow_failure: true` set by default.
**Statuses of optional actions do not contribute to overall pipeline status.**
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**Manual actions are considered to be write actions, so permissions for
protected branches are used when user wants to trigger an action. In other
words, in order to trigger a manual action assigned to a branch that the
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pipeline is running for, user needs to have ability to merge to this branch.**
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### environment
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>
**Notes:**
- Introduced in GitLab 8.9.
- You can read more about environments and find more examples in the
[documentation about environments][environment].
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`environment` is used to define that a job deploys to a specific environment.
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If `environment` is specified and no environment under that name exists, a new
one will be created automatically.
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In its simplest form, the `environment` keyword can be defined like:
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```yaml
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deploy to production:
stage: deploy
script: git push production HEAD:master
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environment:
name: production
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```
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In the above example, the `deploy to production` job will be marked as doing a
deployment to the `production` environment.
#### environment:name
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>
**Notes:**
- Introduced in GitLab 8.11.
- Before GitLab 8.11, the name of an environment could be defined as a string like
`environment: production` . The recommended way now is to define it under the
`name` keyword.
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The `environment` name can contain:
- letters
- digits
- spaces
- `-`
- `_`
- `/`
- `$`
- `{`
- `}`
Common names are `qa` , `staging` , and `production` , but you can use whatever
name works with your workflow.
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Instead of defining the name of the environment right after the `environment`
keyword, it is also possible to define it as a separate value. For that, use
the `name` keyword under `environment` :
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```yaml
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deploy to production:
stage: deploy
script: git push production HEAD:master
environment:
name: production
```
#### environment:url
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>
**Notes:**
- Introduced in GitLab 8.11.
- Before GitLab 8.11, the URL could be added only in GitLab's UI. The
recommended way now is to define it in `.gitlab-ci.yml` .
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This is an optional value that when set, it exposes buttons in various places
in GitLab which when clicked take you to the defined URL.
In the example below, if the job finishes successfully, it will create buttons
in the merge requests and in the environments/deployments pages which will point
to `https://prod.example.com` .
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```yaml
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deploy to production:
stage: deploy
script: git push production HEAD:master
environment:
name: production
url: https://prod.example.com
```
#### environment:on_stop
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>
**Notes:**
- [Introduced][ce-6669] in GitLab 8.13.
- Starting with GitLab 8.14, when you have an environment that has a stop action
defined, GitLab will automatically trigger a stop action when the associated
branch is deleted.
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Closing (stoping) environments can be achieved with the `on_stop` keyword defined under
`environment` . It declares a different job that runs in order to close
the environment.
Read the `environment:action` section for an example.
#### environment:action
> [Introduced][ce-6669] in GitLab 8.13.
The `action` keyword is to be used in conjunction with `on_stop` and is defined
in the job that is called to close the environment.
Take for instance:
```yaml
review_app:
stage: deploy
script: make deploy-app
environment:
name: review
on_stop: stop_review_app
stop_review_app:
stage: deploy
script: make delete-app
when: manual
environment:
name: review
action: stop
```
In the above example we set up the `review_app` job to deploy to the `review`
environment, and we also defined a new `stop_review_app` job under `on_stop` .
Once the `review_app` job is successfully finished, it will trigger the
`stop_review_app` job based on what is defined under `when` . In this case we
set it up to `manual` so it will need a [manual action ](#manual-actions ) via
GitLab's web interface in order to run.
The `stop_review_app` job is **required** to have the following keywords defined:
- `when` - [reference ](#when )
- `environment:name`
- `environment:action`
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- `stage` should be the same as the `review_app` in order for the environment
to stop automatically when the branch is deleted
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#### dynamic environments
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>
**Notes:**
- [Introduced][ce-6323] in GitLab 8.12 and GitLab Runner 1.6.
- The `$CI_ENVIRONMENT_SLUG` was [introduced][ce-7983] in GitLab 8.15.
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`environment` can also represent a configuration hash with `name` and `url` .
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These parameters can use any of the defined [CI variables ](#variables )
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(including predefined, secure variables and `.gitlab-ci.yml` variables).
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For example:
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```yaml
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deploy as review app:
stage: deploy
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script: make deploy
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environment:
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name: review/$CI_COMMIT_REF_NAME
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url: https://$CI_ENVIRONMENT_SLUG.example.com/
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```
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The `deploy as review app` job will be marked as deployment to dynamically
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create the `review/$CI_COMMIT_REF_NAME` environment, where `$CI_COMMIT_REF_NAME`
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is an [environment variable][variables] set by the Runner. The
`$CI_ENVIRONMENT_SLUG` variable is based on the environment name, but suitable
for inclusion in URLs. In this case, if the `deploy as review app` job was run
in a branch named `pow` , this environment would be accessible with an URL like
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`https://review-pow.example.com/` .
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This of course implies that the underlying server which hosts the application
is properly configured.
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The common use case is to create dynamic environments for branches and use them
as Review Apps. You can see a simple example using Review Apps at
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< https: / / gitlab . com / gitlab-examples / review-apps-nginx / > .
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### artifacts
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>
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**Notes:**
- Introduced in GitLab Runner v0.7.0 for non-Windows platforms.
- Windows support was added in GitLab Runner v.1.0.0.
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- Prior to GitLab 9.2, caches were restored after artifacts.
- From GitLab 9.2, caches are restored before artifacts.
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- Currently not all executors are supported.
- Job artifacts are only collected for successful jobs by default.
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`artifacts` is used to specify a list of files and directories which should be
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attached to the job after success. You can only use paths that are within the
project workspace. To pass artifacts between different jobs, see [dependencies ](#dependencies ).
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Below are some examples.
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Send all files in `binaries` and `.config` :
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```yaml
artifacts:
paths:
- binaries/
- .config
```
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Send all Git untracked files:
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```yaml
artifacts:
untracked: true
```
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Send all Git untracked files and files in `binaries` :
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```yaml
artifacts:
untracked: true
paths:
- binaries/
```
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To disable artifact passing, define the job with empty [dependencies ](#dependencies ):
```yaml
job:
stage: build
script: make build
dependencies: []
```
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You may want to create artifacts only for tagged releases to avoid filling the
build server storage with temporary build artifacts.
Create artifacts only for tags (`default-job` will not create artifacts):
```yaml
default-job:
script:
- mvn test -U
except:
- tags
release-job:
script:
- mvn package -U
artifacts:
paths:
- target/*.war
only:
- tags
```
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The artifacts will be sent to GitLab after the job finishes successfully and will
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be available for download in the GitLab UI.
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#### artifacts:name
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> Introduced in GitLab 8.6 and GitLab Runner v1.1.0.
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The `name` directive allows you to define the name of the created artifacts
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archive. That way, you can have a unique name for every archive which could be
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useful when you'd like to download the archive from GitLab. The `artifacts:name`
variable can make use of any of the [predefined variables ](../variables/README.md ).
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The default name is `artifacts` , which becomes `artifacts.zip` when downloaded.
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---
**Example configurations**
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To create an archive with a name of the current job:
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```yaml
job:
artifacts:
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name: "$CI_JOB_NAME"
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```
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To create an archive with a name of the current branch or tag including only
the files that are untracked by Git:
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```yaml
job:
artifacts:
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name: "$CI_COMMIT_REF_NAME"
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untracked: true
```
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To create an archive with a name of the current job and the current branch or
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tag including only the files that are untracked by Git:
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```yaml
job:
artifacts:
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name: "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
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untracked: true
```
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To create an archive with a name of the current [stage ](#stages ) and branch name:
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```yaml
job:
artifacts:
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name: "${CI_JOB_STAGE}_${CI_COMMIT_REF_NAME}"
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untracked: true
```
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---
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If you use **Windows Batch** to run your shell scripts you need to replace
`$` with `%` :
```yaml
job:
artifacts:
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name: "%CI_JOB_STAGE%_%CI_COMMIT_REF_NAME%"
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untracked: true
```
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If you use **Windows PowerShell** to run your shell scripts you need to replace
`$` with `$env:` :
```yaml
job:
artifacts:
name: "$env:CI_JOB_STAGE_$env:CI_COMMIT_REF_NAME"
untracked: true
```
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#### artifacts:when
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> Introduced in GitLab 8.9 and GitLab Runner v1.3.0.
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`artifacts:when` is used to upload artifacts on job failure or despite the
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failure.
`artifacts:when` can be set to one of the following values:
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1. `on_success` - upload artifacts only when the job succeeds. This is the default.
1. `on_failure` - upload artifacts only when the job fails.
1. `always` - upload artifacts regardless of the job status.
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---
**Example configurations**
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To upload artifacts only when job fails.
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```yaml
job:
artifacts:
when: on_failure
```
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#### artifacts:expire_in
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> Introduced in GitLab 8.9 and GitLab Runner v1.3.0.
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`artifacts:expire_in` is used to delete uploaded artifacts after the specified
time. By default, artifacts are stored on GitLab forever. `expire_in` allows you
to specify how long artifacts should live before they expire, counting from the
time they are uploaded and stored on GitLab.
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You can use the **Keep** button on the job page to override expiration and
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keep artifacts forever.
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After expiry, artifacts are actually deleted hourly by default (via a cron job),
but they are not accessible after expiry.
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The value of `expire_in` is an elapsed time. Examples of parseable values:
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- '3 mins 4 sec'
- '2 hrs 20 min'
- '2h20min'
- '6 mos 1 day'
- '47 yrs 6 mos and 4d'
- '3 weeks and 2 days'
---
**Example configurations**
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To expire artifacts 1 week after being uploaded:
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```yaml
job:
artifacts:
expire_in: 1 week
```
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### dependencies
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> Introduced in GitLab 8.6 and GitLab Runner v1.1.1.
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This feature should be used in conjunction with [`artifacts` ](#artifacts ) and
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allows you to define the artifacts to pass between different jobs.
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Note that `artifacts` from all previous [stages ](#stages ) are passed by default.
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To use this feature, define `dependencies` in context of the job and pass
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a list of all previous jobs from which the artifacts should be downloaded.
You can only define jobs from stages that are executed before the current one.
An error will be shown if you define jobs from the current stage or next ones.
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Defining an empty array will skip downloading any artifacts for that job.
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---
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In the following example, we define two jobs with artifacts, `build:osx` and
`build:linux` . When the `test:osx` is executed, the artifacts from `build:osx`
will be downloaded and extracted in the context of the build. The same happens
for `test:linux` and artifacts from `build:linux` .
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The job `deploy` will download artifacts from all previous jobs because of
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the [stage ](#stages ) precedence:
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```yaml
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build:osx:
stage: build
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script: make build:osx
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artifacts:
paths:
- binaries/
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build:linux:
stage: build
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script: make build:linux
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artifacts:
paths:
- binaries/
test:osx:
stage: test
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script: make test:osx
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dependencies:
- build:osx
test:linux:
stage: test
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script: make test:linux
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dependencies:
- build:linux
deploy:
stage: deploy
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script: make deploy
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```
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### before_script and after_script
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It's possible to overwrite the globally defined `before_script` and `after_script` :
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```yaml
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before_script:
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- global before script
job:
before_script:
- execute this instead of global before script
script:
- my command
after_script:
- execute this after my script
```
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### coverage
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**Notes:**
- [Introduced][ce-7447] in GitLab 8.17.
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`coverage` allows you to configure how code coverage will be extracted from the
job output.
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Regular expressions are the only valid kind of value expected here. So, using
surrounding `/` is mandatory in order to consistently and explicitly represent
a regular expression string. You must escape special characters if you want to
match them literally.
A simple example:
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```yaml
job1:
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coverage: '/Code coverage: \d+\.\d+/'
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```
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## Git Strategy
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> Introduced in GitLab 8.9 as an experimental feature. May change or be removed
completely in future releases. `GIT_STRATEGY=none` requires GitLab Runner
v1.7+.
You can set the `GIT_STRATEGY` used for getting recent application code, either
in the global [`variables` ](#variables ) section or the [`variables` ](#job-variables )
section for individual jobs. If left unspecified, the default from project
settings will be used.
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There are three possible values: `clone` , `fetch` , and `none` .
`clone` is the slowest option. It clones the repository from scratch for every
job, ensuring that the project workspace is always pristine.
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```yaml
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variables:
GIT_STRATEGY: clone
```
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`fetch` is faster as it re-uses the project workspace (falling back to `clone`
if it doesn't exist). `git clean` is used to undo any changes made by the last
job, and `git fetch` is used to retrieve commits made since the last job ran.
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```yaml
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variables:
GIT_STRATEGY: fetch
```
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`none` also re-uses the project workspace, but skips all Git operations
(including GitLab Runner's pre-clone script, if present). It is mostly useful
for jobs that operate exclusively on artifacts (e.g., `deploy` ). Git repository
data may be present, but it is certain to be out of date, so you should only
rely on files brought into the project workspace from cache or artifacts.
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```yaml
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variables:
GIT_STRATEGY: none
```
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## Git Checkout
> Introduced in GitLab Runner 9.3
The `GIT_CHECKOUT` variable can be used when the `GIT_STRATEGY` is set to either
`clone` or `fetch` to specify whether a `git checkout` should be run. If not
specified, it defaults to true. Like `GIT_STRATEGY` , it can be set in either the
global [`variables` ](#variables ) section or the [`variables` ](#job-variables )
section for individual jobs.
If set to `false` , the Runner will:
- when doing `fetch` - update the repository and leave working copy on
the current revision,
- when doing `clone` - clone the repository and leave working copy on the
default branch.
Having this setting set to `true` will mean that for both `clone` and `fetch`
strategies the Runner will checkout the working copy to a revision related
to the CI pipeline:
```yaml
variables:
GIT_STRATEGY: clone
GIT_CHECKOUT: false
script:
- git checkout master
- git merge $CI_BUILD_REF_NAME
```
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## Git Submodule Strategy
> Requires GitLab Runner v1.10+.
The `GIT_SUBMODULE_STRATEGY` variable is used to control if / how Git
submodules are included when fetching the code before a build. Like
`GIT_STRATEGY` , it can be set in either the global [`variables` ](#variables )
section or the [`variables` ](#job-variables ) section for individual jobs.
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There are three possible values: `none` , `normal` , and `recursive` :
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- `none` means that submodules will not be included when fetching the project
code. This is the default, which matches the pre-v1.10 behavior.
- `normal` means that only the top-level submodules will be included. It is
equivalent to:
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```
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git submodule sync
git submodule update --init
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```
- `recursive` means that all submodules (including submodules of submodules)
will be included. It is equivalent to:
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```
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git submodule sync --recursive
git submodule update --init --recursive
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```
Note that for this feature to work correctly, the submodules must be configured
(in `.gitmodules` ) with either:
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- the HTTP(S) URL of a publicly-accessible repository, or
- a relative path to another repository on the same GitLab server. See the
[Git submodules ](../git_submodules.md ) documentation.
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## Job stages attempts
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> Introduced in GitLab, it requires GitLab Runner v1.9+.
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You can set the number for attempts the running job will try to execute each
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of the following stages:
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| Variable | Description |
|-------------------------------- |-------------|
| **GET_SOURCES_ATTEMPTS** | Number of attempts to fetch sources running a job |
| **ARTIFACT_DOWNLOAD_ATTEMPTS** | Number of attempts to download artifacts running a job |
| **RESTORE_CACHE_ATTEMPTS** | Number of attempts to restore the cache running a job |
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The default is one single attempt.
Example:
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```yaml
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variables:
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GET_SOURCES_ATTEMPTS: 3
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```
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You can set them in the global [`variables` ](#variables ) section or the
[`variables` ](#job-variables ) section for individual jobs.
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## Shallow cloning
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> Introduced in GitLab 8.9 as an experimental feature. May change in future
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releases or be removed completely.
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You can specify the depth of fetching and cloning using `GIT_DEPTH` . This allows
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shallow cloning of the repository which can significantly speed up cloning for
repositories with a large number of commits or old, large binaries. The value is
passed to `git fetch` and `git clone` .
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>**Note:**
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If you use a depth of 1 and have a queue of jobs or retry
jobs, jobs may fail.
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Since Git fetching and cloning is based on a ref, such as a branch name, Runners
can't clone a specific commit SHA. If there are multiple jobs in the queue, or
you are retrying an old job, the commit to be tested needs to be within the
Git history that is cloned. Setting too small a value for `GIT_DEPTH` can make
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it impossible to run these old commits. You will see `unresolved reference` in
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job logs. You should then reconsider changing `GIT_DEPTH` to a higher value.
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Jobs that rely on `git describe` may not work correctly when `GIT_DEPTH` is
set since only part of the Git history is present.
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To fetch or clone only the last 3 commits:
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```yaml
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variables:
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GIT_DEPTH: "3"
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```
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## Hidden keys
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> Introduced in GitLab 8.6 and GitLab Runner v1.1.1.
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Keys that start with a dot (`.`) will be not processed by GitLab CI. You can
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use this feature to ignore jobs, or use the
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[special YAML features ](#special-yaml-features ) and transform the hidden keys
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into templates.
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In the following example, `.key_name` will be ignored:
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```yaml
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.key_name:
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script:
- rake spec
```
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Hidden keys can be hashes like normal CI jobs, but you are also allowed to use
different types of structures to leverage special YAML features.
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## Special YAML features
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It's possible to use special YAML features like anchors (`& `), aliases (`*`)
and map merging (`< < `), which will allow you to greatly reduce the complexity
of `.gitlab-ci.yml` .
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Read more about the various [YAML features ](https://learnxinyminutes.com/docs/yaml/ ).
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### Anchors
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> Introduced in GitLab 8.6 and GitLab Runner v1.1.1.
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YAML has a handy feature called 'anchors', which lets you easily duplicate
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content across your document. Anchors can be used to duplicate/inherit
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properties, and is a perfect example to be used with [hidden keys ](#hidden-keys )
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to provide templates for your jobs.
The following example uses anchors and map merging. It will create two jobs,
`test1` and `test2` , that will inherit the parameters of `.job_template` , each
having their own custom `script` defined:
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```yaml
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.job_template: & job_definition # Hidden key that defines an anchor named 'job_definition'
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image: ruby:2.1
services:
- postgres
- redis
test1:
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< < : * job_definition # Merge the contents of the ' job_definition ' alias
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script:
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- test1 project
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test2:
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< < : * job_definition # Merge the contents of the ' job_definition ' alias
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script:
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- test2 project
```
`&` sets up the name of the anchor (`job_definition`), `<<` means "merge the
given hash into the current one", and `*` includes the named anchor
(`job_definition` again). The expanded version looks like this:
```yaml
.job_template:
image: ruby:2.1
services:
- postgres
- redis
test1:
image: ruby:2.1
services:
- postgres
- redis
script:
- test1 project
test2:
image: ruby:2.1
services:
- postgres
- redis
script:
- test2 project
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```
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Let's see another one example. This time we will use anchors to define two sets
of services. This will create two jobs, `test:postgres` and `test:mysql` , that
will share the `script` directive defined in `.job_template` , and the `services`
directive defined in `.postgres_services` and `.mysql_services` respectively:
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```yaml
.job_template: & job_definition
script:
- test project
.postgres_services:
services: & postgres_definition
- postgres
- ruby
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.mysql_services:
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services: & mysql_definition
- mysql
- ruby
test:postgres:
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< < : * job_definition
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services: *postgres_definition
test:mysql:
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< < : * job_definition
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services: *mysql_definition
```
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The expanded version looks like this:
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```yaml
.job_template:
script:
- test project
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.postgres_services:
services:
- postgres
- ruby
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.mysql_services:
services:
- mysql
- ruby
test:postgres:
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script:
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- test project
services:
- postgres
- ruby
test:mysql:
script:
- test project
services:
- mysql
- ruby
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```
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You can see that the hidden keys are conveniently used as templates.
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## Triggers
Triggers can be used to force a rebuild of a specific branch, tag or commit,
with an API call.
[Read more in the triggers documentation. ](../triggers/README.md )
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### pages
`pages` is a special job that is used to upload static content to GitLab that
can be used to serve your website. It has a special syntax, so the two
requirements below must be met:
1. Any static content must be placed under a `public/` directory
1. `artifacts` with a path to the `public/` directory must be defined
The example below simply moves all files from the root of the project to the
`public/` directory. The `.public` workaround is so `cp` doesn't also copy
`public/` to itself in an infinite loop:
```
pages:
stage: deploy
script:
- mkdir .public
- cp -r * .public
- mv .public public
artifacts:
paths:
- public
only:
- master
```
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Read more on [GitLab Pages user documentation ](../../user/project/pages/index.md ).
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## Validate the .gitlab-ci.yml
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Each instance of GitLab CI has an embedded debug tool called Lint.
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You can find the link under `/ci/lint` of your gitlab instance.
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## Skipping jobs
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If your commit message contains `[ci skip]` or `[skip ci]` , using any
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capitalization, the commit will be created but the jobs will be skipped.
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## Examples
Visit the [examples README][examples] to see a list of examples using GitLab
CI with various languages.
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[env-manual]: ../environments.md#manually-deploying-to-environments
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[examples]: ../examples/README.md
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[ce-6323]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6323
[environment]: ../environments.md
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[ce-6669]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6669
[variables]: ../variables/README.md
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[ce-7983]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7983
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[ce-7447]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7447