67 lines
2.5 KiB
Markdown
67 lines
2.5 KiB
Markdown
---
|
|
stage: Verify
|
|
group: Pipeline Execution
|
|
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
|
|
type: reference
|
|
---
|
|
|
|
# Using Git submodules with GitLab CI/CD **(FREE)**
|
|
|
|
Use [Git submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules) to keep
|
|
a Git repository as a subdirectory of another Git repository. You can clone another
|
|
repository into your project and keep your commits separate.
|
|
|
|
## Configure the `.gitmodules` file
|
|
|
|
When you use Git submodules, your project should have a file named `.gitmodules`.
|
|
You might need to modify it to work in a GitLab CI/CD job.
|
|
|
|
For example, your `.gitmodules` configuration might look like the following if:
|
|
|
|
- Your project is located at `https://gitlab.com/secret-group/my-project`.
|
|
- Your project depends on `https://gitlab.com/group/project`, which you want
|
|
to include as a submodule.
|
|
- You check out your sources with an SSH address like `git@gitlab.com:secret-group/my-project.git`.
|
|
|
|
```ini
|
|
[submodule "project"]
|
|
path = project
|
|
url = ../../group/project.git
|
|
```
|
|
|
|
When your submodule is on the same GitLab server, you should use relative URLs in
|
|
your `.gitmodules` file. Then you can clone with HTTPS in all your CI/CD jobs. You
|
|
can also use SSH for all your local checkouts.
|
|
|
|
The above configuration instructs Git to automatically deduce the URL to
|
|
use when cloning sources. Git uses the same configuration for both HTTPS and SSH.
|
|
GitLab CI/CD uses HTTPS for cloning your sources, and you can continue to use SSH
|
|
to clone locally.
|
|
|
|
For submodules not located on the same GitLab server, use the full URL:
|
|
|
|
```ini
|
|
[submodule "project-x"]
|
|
path = project-x
|
|
url = https://gitserver.com/group/project-x.git
|
|
```
|
|
|
|
## Use Git submodules in CI/CD jobs
|
|
|
|
To make submodules work correctly in CI/CD jobs:
|
|
|
|
1. Make sure you use [relative URLs](#configure-the-gitmodules-file)
|
|
for submodules located in the same GitLab server.
|
|
1. You can set the `GIT_SUBMODULE_STRATEGY` variable to either `normal` or `recursive`
|
|
to tell the runner to [fetch your submodules before the job](runners/configure_runners.md#git-submodule-strategy):
|
|
|
|
```yaml
|
|
variables:
|
|
GIT_SUBMODULE_STRATEGY: recursive
|
|
```
|
|
|
|
If you use the [`CI_JOB_TOKEN`](jobs/ci_job_token.md) to clone a submodule in a
|
|
pipeline job, the user executing the job must be assigned to a role that has
|
|
[permission](../user/permissions.md#gitlab-cicd-permissions) to trigger a pipeline
|
|
in the upstream submodule project.
|