Backstage Gitlab Plugin

Website: https://gitlab.com/

Setup

1. If you have a standalone app (you didn't clone this repo), then do

# From your Backstage root directory
cd packages/app
yarn add @loblaw/backstage-plugin-gitlab

2. Add a new Gitlab tab to the entity page.

// packages/app/src/components/catalog/EntityPage.tsx

import { isGitlabAvailable, EntityGitlabContent } from '@loblaw/backstage-plugin-gitlab';

// Farther down at the serviceEntityPage declaration
const serviceEntityPage = (
  <EntityLayout>
    {/* Place the following section where you want the tab to appear */}
    <EntityLayout.Route if={isGitlabAvailable} path="/gitlab" title="Gitlab">
       <EntityGitlabContent />
    </EntityLayout.Route>
  </EntityLayout>
);

3. Add the Gitlab cards to the Overview tab on the entity page(Optional).

// packages/app/src/components/catalog/EntityPage.tsx

import { 
  isGitlabAvailable, 
  EntityGitlabContent, 
  EntityGitlabLanguageCard, 
  EntityGitlabContributorsCard, 
  EntityGitlabMergeRequestsTable, 
  EntityGitlabMergeRequestStatsCard, 
  EntityGitlabPipelinesTable 
} from '@loblaw/backstage-plugin-gitlab';

//Farther down at the overviewContent declaration
//You can add only selected widgets or all of them.
const overviewContent = (
  <Grid container spacing={3} alignItems="stretch">
    <EntitySwitch>
      <EntitySwitch.Case if={isGitlabAvailable}>
        <Grid item md={6}>
          <EntityGitlabContributorsCard />
          <EntityGitlabLanguageCard />
          <EntityGitlabMergeRequestStatsCard />
          <EntityGitlabPipelinesTable />
          <EntityGitlabMergeRequestsTable />
        </Grid> 
      </EntitySwitch.Case>
    </EntitySwitch>
  </Grid>
);

4. Add integration: In app-config.yaml add the integration for gitlab:

integrations:
  gitlab:
    - host: gitlab.com
      token: ${GITLAB_TOKEN}

5. Add proxy config:

  '/gitlabci':
    target: '${GITLAB_URL}/api/v4'
    allowedMethods: ['GET']
    headers:
      PRIVATE-TOKEN: '${GITLAB_TOKEN}'

• Default GitLab URL: https://gitlab.com
• GitLab Token should be with of scope read_api and can be generated from this URL

5. Add a gitlab.com/project-id annotation to your respective catalog-info.yaml files, on the format

# Example catalog-info.yaml entity definition file
apiVersion: backstage.io/v1alpha1
kind: Component
metadata:
  # ...
  annotations:
      gitlab.com/project-id: 'project-id' #1234. This must be in quotes and can be found under Settings --> General
      or
      gitlab.com/project-slug: 'project-slug' # group_name/project_name
spec:
  type: service
  # ...

Note: spec.type can take values in ['website','library','service'] but to render GitLab Entity, Catalog must be of type service

Features

• List top 20 builds for a project
• List top 20 Merge Requests for a project
• View Contributors for a project
• View Languages used for a project
• View Pipeline status for a project
• Works for both project and personal tokens
• Pagination for builds
• Pagination for Merge Requests
• Merge Requests Statistics