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Composer packages in the Package Registry

Publish Composer packages in your project's Package Registry. Then, install the packages whenever you need to use them as a dependency.

Only Composer 1.x is supported. Consider contributing or even adding support for Composer 2.0 in the Package Registry.

Create a Composer package

If you do not have a Composer package, create one and check it in to a repository. This example shows a GitLab repository, but the repository can be any public or private repository.

  1. Create a directory called my-composer-package and change to that directory:

    mkdir my-composer-package && cd my-composer-package

  2. Run composer init and answer the prompts.

    For namespace, enter your unique namespace, like your GitLab username or group name.

    A file called composer.json is created:

    {
  "name": "<namespace>/composer-test",
  "description": "Library XY",
  "type": "library",
  "license": "GPL-3.0-only",
  "authors": [
     {
         "name": "John Doe",
         "email": "john@example.com"
     }
  ],
  "require": {}
}

  3. Run Git commands to tag the changes and push them to your repository:

    git init
git add composer.json
git commit -m 'Composer package test'
git tag v1.0.0
git remote add origin git@gitlab.example.com:<namespace>/<project-name>.git
git push --set-upstream origin master
git push origin v1.0.0

The package is now in your GitLab Package Registry.

Publish a Composer package by using the API

Publish a Composer package to the Package Registry, so that anyone who can access the project can use the package as a dependency.

Prerequisites:

  • A package in a GitLab repository.

  • A valid composer.json file.

  • The Packages feature is enabled in a GitLab repository.

  • The project ID, which is on the project's home page.

  • A personal access token with the scope set to api.

    NOTE: Note: Deploy tokens are not yet supported for use with Composer.

To publish the package:

  • Send a POST request to the Packages API.

    For example, you can use curl:

    curl --data tag=<tag> "https://__token__:<personal-access-token>@gitlab.example.com/api/v4/projects/<project_id>/packages/composer"
    • <personal-access-token> is your personal access token.
    • <project_id> is your project ID.
    • <tag> is the Git tag name of the version you want to publish. To publish a branch, use branch=<branch> instead of tag=<tag>.

You can view the published package by going to Packages & Registries > Package Registry and selecting the Composer tab.

Publish a Composer package by using CI/CD

You can publish a Composer package to the Package Registry as part of your CI/CD process.

  1. Specify a CI_JOB_TOKEN in your .gitlab-ci.yml file:

    stages:
  - deploy

deploy:
  stage: deploy
  script:
    - 'curl --header "Job-Token: $CI_JOB_TOKEN" --data tag=<tag> "https://gitlab.example.com/api/v4/projects/$CI_PROJECT_ID/packages/composer"'

  2. Run the pipeline.

You can view the published package by going to Packages & Registries > Package Registry and selecting the Composer tab.

Use a CI/CD template

A more detailed Composer CI/CD file is also available as a .gitlab-ci.yml template:

  1. On the left sidebar, click Project overview.
  2. Above the file list, click Set up CI/CD. If this button is not available, select CI/CD Configuration and then Edit.
  3. From the Apply a template list, select Composer.

CAUTION: Warning: Do not save unless you want to overwrite the existing CI/CD file.

Install a Composer package

Install a package from the Package Registry so you can use it as a dependency.

Prerequisites:

To install a package:

  1. Add the Package Registry URL to your project's composer.json file, along with the package name and version you want to install:

    • Connect to the Package Registry for your group:
    composer config repositories.<group_id> composer https://gitlab.example.com/api/v4/group/<group_id>/-/packages/composer/
    • Set the required package version:
    composer require <package_name>:<version>

    Result in the composer.json file:

    {
  ...
  "repositories": {
    "<group_id>": {
      "type": "composer",
      "url": "https://gitlab.example.com/api/v4/group/<group_id>/-/packages/composer/"
    },
    ...
  },
  "require": {
    ...
    "<package_name>": "<version>"
  },
  ...
}

    You can unset this with the command:

    composer config --unset repositories.<group_id>
    • <group_id> is the group ID.
    • <package_name> is the package name defined in your package's composer.json file.
    • <version> is the package version.

  2. Create an auth.json file with your GitLab credentials:

    composer config gitlab-token.<DOMAIN-NAME> <personal_access_token>

    Result in the auth.json file:

    {
  ...
  "gitlab-token": {
    "<DOMAIN-NAME>": "<personal_access_token>",
    ...
  }
}

    You can unset this with the command:

    composer config --unset --auth gitlab-token.<DOMAIN-NAME>
    • <DOMAIN-NAME> is the GitLab instance URL gitlab.com or gitlab.example.com.
    • <personal_access_token> with the scope set to read_api.

  3. If you are on a GitLab self-managed instance, add gitlab-domains to composer.json.

    composer config gitlab-domains gitlab01.example.com gitlab02.example.com

    Result in the composer.json file:

    {
  ...
  "repositories": [
    { "type": "composer", "url": "https://gitlab.example.com/api/v4/group/<group_id>/-/packages/composer/" }
  ],
  "config": {
    ...
    "gitlab-domains": ["gitlab01.example.com", "gitlab02.example.com"]
  },
  "require": {
    ...
    "<package_name>": "<version>"
  },
  ...
}

    You can unset this with the command:

    composer config --unset gitlab-domains

    NOTE: Note: On GitLab.com, Composer uses the GitLab token from auth.json as a private token by default. Without the gitlab-domains definition in composer.json, Composer uses the GitLab token as basic-auth, with the token as a username and a blank password. This results in a 401 error.

Output indicates that the package has been successfully installed.

CAUTION: Important: Never commit the auth.json file to your repository. To install packages from a CI/CD job, consider using the composer config tool with your personal access token stored in a GitLab CI/CD environment variable or in HashiCorp Vault.