GitLab

Use ArmIn in GitLab issues and merge requests.

ArmIn integrates with your GitLab workflow through your GitLab CI/CD pipeline or with GitLab Duo.

In both cases, ArmIn will run on your GitLab runners.

GitLab CI

ArmIn works in a regular GitLab pipeline. You can build it into a pipeline as a CI component

Here we are using a community-created CI/CD component for ArmIn — nagyv/gitlab-armin.

Features

Use custom configuration per job: Configure ArmIn with a custom configuration directory, for example ./config/#custom-directory to enable or disable functionality per ArmIn invocation.
Minimal setup: The CI component sets up ArmIn in the background, you only need to create the ArmIn configuration and the initial prompt.
Flexible: The CI component supports several inputs for customizing its behavior

Setup

Store your ArmIn authentication JSON as a File type CI environment variables under Settings > CI/CD > Variables. Make sure to mark them as “Masked and hidden”.

Add the following to your .gitlab-ci.yml file.

include:
  - component: $CI_SERVER_FQDN/nagyv/gitlab-armin/armin@2
    inputs:
      config_dir: ${CI_PROJECT_DIR}/armin-config
      auth_json: $OPENCODE_AUTH_JSON # The variable name for your ArmIn authentication JSON
      command: optional-custom-command
      message: "Your prompt here"

For more inputs and use cases check out the docs for this component.

GitLab Duo

ArmIn integrates with your GitLab workflow. Mention @armin in a comment, and ArmIn will execute tasks within your GitLab CI pipeline.

Features

Triage issues: Ask ArmIn to look into an issue and explain it to you.
Fix and implement: Ask ArmIn to fix an issue or implement a feature. It will create a new branch and raise a merge request with the changes.
Secure: ArmIn runs on your GitLab runners.

Setup

ArmIn runs in your GitLab CI/CD pipeline, here’s what you’ll need to set it up:

Configure your GitLab environment
Set up CI/CD
Get an AI model provider API key
Create a service account
Configure CI/CD variables

Create a flow config file, here’s an example:

Flow configuration

image: node:22-slim
commands:
  - echo "Installing armin"
  - npm install --global armin-ai
  - echo "Installing glab"
  - export GITLAB_TOKEN=$GITLAB_TOKEN_OPENCODE
  - apt-get update --quiet && apt-get install --yes curl wget gpg git && rm --recursive --force /var/lib/apt/lists/*
  - curl --silent --show-error --location "https://raw.githubusercontent.com/upciti/wakemeops/main/assets/install_repository" | bash
  - apt-get install --yes glab
  - echo "Configuring glab"
  - echo $GITLAB_HOST
  - echo "Creating ArmIn auth configuration"
  - mkdir --parents ~/.local/share/armin
  - |
    cat > ~/.local/share/armin/auth.json << EOF
    {
      "anthropic": {
        "type": "api",
        "key": "$ANTHROPIC_API_KEY"
      }
    }
    EOF
  - echo "Configuring git"
  - git config --global user.email "armin@gitlab.com"
  - git config --global user.name "ArmIn"
  - echo "Testing glab"
  - glab issue list
  - echo "Running ArmIn"
  - |
    armin run "
    You are an AI assistant helping with GitLab operations.

    Context: $AI_FLOW_CONTEXT
    Task: $AI_FLOW_INPUT
    Event: $AI_FLOW_EVENT

    Please execute the requested task using the available GitLab tools.
    Be thorough in your analysis and provide clear explanations.

    <important>
    Please use the glab CLI to access data from GitLab. The glab CLI has already been authenticated. You can run the corresponding commands.

    If you are asked to summarize an MR or issue or asked to provide more information then please post back a note to the MR/Issue so that the user can see it.
    You don't need to commit or push up changes, those will be done automatically based on the file changes you make.
    </important>
    "
  - git checkout --branch $CI_WORKLOAD_REF origin/$CI_WORKLOAD_REF
  - echo "Checking for git changes and pushing if any exist"
  - |
    if ! git diff --quiet || ! git diff --cached --quiet || [ --not --zero "$(git ls-files --others --exclude-standard)" ]; then
      echo "Git changes detected, adding and pushing..."
      git add .
      if git diff --cached --quiet; then
        echo "No staged changes to commit"
      else
        echo "Committing changes to branch: $CI_WORKLOAD_REF"
        git commit --message "Codex changes"
        echo "Pushing changes up to $CI_WORKLOAD_REF"
        git push https://gitlab-ci-token:$GITLAB_TOKEN@$GITLAB_HOST/gl-demo-ultimate-dev-ai-epic-17570/test-java-project.git $CI_WORKLOAD_REF
        echo "Changes successfully pushed"
      fi
    else
      echo "No git changes detected, skipping push"
    fi
variables:
  - ANTHROPIC_API_KEY
  - GITLAB_TOKEN_OPENCODE
  - GITLAB_HOST

You can refer to the GitLab CLI agents docs for detailed instructions.

Examples

Here are some examples of how you can use ArmIn in GitLab.

Explain an issue

Add this comment in a GitLab issue.
```
@armin explain this issue
```
ArmIn will read the issue and reply with a clear explanation.
Fix an issue

In a GitLab issue, say:
```
@armin fix this
```
ArmIn will create a new branch, implement the changes, and open a merge request with the changes.
Review merge requests

Leave the following comment on a GitLab merge request.
```
@armin review this merge request
```
ArmIn will review the merge request and provide feedback.