Build Preview Environments for Every Pull Request with the Sliplane API

# List your projects
curl https://ctrl.sliplane.io/v0/projects \
  -H "Authorization: Bearer YOUR_API_TOKEN"

# List servers in a project
curl https://ctrl.sliplane.io/v0/projects/PROJECT_ID/servers \
  -H "Authorization: Bearer YOUR_API_TOKEN"

name: Preview Environment
on:
  pull_request:
    types: [opened, reopened, closed]

env:
  SLIPLANE_API: https://ctrl.sliplane.io/v0
  PROJECT_ID: your_project_id
  SERVER_ID: your_server_id

jobs:
  preview:
    runs-on: ubuntu-latest
    steps:
      - name: Create Preview
        if: github.event.action == 'opened' || github.event.action == 'reopened'
        id: create-preview
        run: |
          PREVIEW_NAME="preview-pr-${{ github.event.number }}"
          BRANCH="${{ github.head_ref }}"

          RESPONSE=$(curl -s -X POST "$SLIPLANE_API/projects/$PROJECT_ID/services" \
            -H "Authorization: Bearer ${{ secrets.SLIPLANE_API_TOKEN }}" \
            -H "Content-Type: application/json" \
            -d '{
              "name": "'"$PREVIEW_NAME"'",
              "serverId": "'"$SERVER_ID"'",
              "deployment": {
                "url": "https://github.com/${{ github.repository }}",
                "branch": "'"$BRANCH"'",
                "autoDeploy": true
              },
              "network": {
                "public": true,
                "protocol": "http"
              }
            }')

          echo "service_id=$(echo "$RESPONSE" | jq -r '.id')" >> $GITHUB_OUTPUT
          echo "domain=$(echo "$RESPONSE" | jq -r '.network.managedDomain')" >> $GITHUB_OUTPUT

      - name: Wait for Service to be Ready
        if: github.event.action == 'opened' || github.event.action == 'reopened'
        run: |
          SERVICE_ID="${{ steps.create-preview.outputs.service_id }}"

          for i in {1..60}; do
            STATUS=$(curl -s "$SLIPLANE_API/projects/$PROJECT_ID/services/$SERVICE_ID" \
              -H "Authorization: Bearer ${{ secrets.SLIPLANE_API_TOKEN }}" \
              | jq -r '.status')

            echo "Attempt $i: Status is $STATUS"

            if [ "$STATUS" = "live" ]; then
              echo "Service is ready!"
              break
            elif [ "$STATUS" = "failed" ]; then
              echo "Service failed to start"
              exit 1
            fi

            if [ $i -eq 60 ]; then
              echo "Timeout waiting for service to be ready"
              exit 1
            fi

            sleep 5
          done

      - name: Comment Preview URL
        if: github.event.action == 'opened' || github.event.action == 'reopened'
        uses: actions/github-script@v7
        with:
          script: |
            const url = 'https://${{ steps.create-preview.outputs.domain }}';
            const body = `Preview deployed at: ${url}`;

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
            });
            const botComment = comments.find(c => c.body.includes('Preview deployed at:'));

            if (botComment) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: botComment.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                body,
              });
            }

      - name: Delete Preview
        if: github.event.action == 'closed'
        run: |
          SERVICE_ID=$(curl -s "$SLIPLANE_API/projects/$PROJECT_ID/services" \
            -H "Authorization: Bearer ${{ secrets.SLIPLANE_API_TOKEN }}" \
            | jq -r '.[] | select(.name == "preview-pr-${{ github.event.number }}") | .id')

          if [ -n "$SERVICE_ID" ]; then
            curl -X DELETE "$SLIPLANE_API/projects/$PROJECT_ID/services/$SERVICE_ID" \
              -H "Authorization: Bearer ${{ secrets.SLIPLANE_API_TOKEN }}"
          fi