Cron Blue Green Deploy #154
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| name: Cron Blue Green Deploy | |
| # How can I use GitHub Actions with Vercel? | |
| # https://vercel.com/guides/how-can-i-use-github-actions-with-vercel | |
| env: | |
| VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }} | |
| VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }} | |
| on: | |
| # Allow manual runs | |
| workflow_dispatch: | |
| inputs: | |
| logLevel: | |
| description: "Log level" | |
| required: true | |
| default: "information" | |
| type: choice | |
| options: | |
| - information | |
| - debug | |
| - warning | |
| - critical | |
| tags: | |
| description: "Reason for running workflow?" | |
| required: true | |
| type: string | |
| # Run once every day https://crontab.guru/every-day | |
| schedule: | |
| - cron: "0 0 * * *" | |
| jobs: | |
| create-blue-green-deployments: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| with: | |
| # `1` means fetch the latest commit without full history, so it's fast and efficient. | |
| fetch-depth: 1 | |
| - name: Set node version | |
| uses: actions/setup-node@v3 | |
| with: | |
| node-version-file: ".nvmrc" | |
| - name: Enable corepack | |
| run: corepack enable pnpm | |
| - name: Set pnpm version | |
| uses: pnpm/action-setup@v3 | |
| with: | |
| run_install: false | |
| version: 8 | |
| - name: Cache node_modules | |
| id: node-modules-cache | |
| uses: actions/cache@v3 | |
| with: | |
| path: "**/node_modules" | |
| key: node-modules-cache-${{ hashFiles('**/pnpm-lock.yaml') }} | |
| - name: Install dependencies | |
| if: steps.node-modules-cache.outputs.cache-hit != 'true' | |
| run: pnpm install --no-frozen-lockfile | |
| - name: Install Vercel CLI | |
| run: npm install --global vercel | |
| # Pull down the production environment variables as if were building on Vercel. | |
| # https://vercel.com/docs/cli/pull | |
| - name: Get Vercel Environment Variables | |
| run: vercel pull --yes --environment=production --token=${{ secrets.VERCEL_TOKEN }} | |
| # Create a "blue" version of the site, deloy it, and capture the deployment url. | |
| - name: Update CSS to Blue | |
| run: 'echo "body {background: blue;}" > ./app/blue-green.css' | |
| - name: Build Blue | |
| run: vercel build --prod --token=${{ secrets.VERCEL_TOKEN }} | |
| - name: Deploy Blue | |
| id: deploy-blue | |
| run: echo "url=$(vercel deploy --prebuilt --prod --token=${{ secrets.VERCEL_TOKEN }})" >> $GITHUB_OUTPUT | |
| # Create a "green" version of the site, deloy it, and capture the deployment url. | |
| - name: Update CSS to Green | |
| run: 'echo "body {background: green;}" > ./app/blue-green.css' | |
| - name: Build Green | |
| run: vercel build --prod --token=${{ secrets.VERCEL_TOKEN }} | |
| - name: Deploy Green | |
| id: deploy-green | |
| run: echo "url=$(vercel deploy --prebuilt --prod --token=${{ secrets.VERCEL_TOKEN }})" >> $GITHUB_OUTPUT | |
| # Update the blue-green urls in the Edge Config store using Vercel's API. | |
| # https://vercel.com/docs/storage/edge-config/vercel-api#update-your-edge-config-items | |
| - name: Update Edge Config | |
| run: | | |
| curl -X 'PATCH' 'https://api.vercel.com/v1/edge-config/${{ secrets.VERCEL_EDGE_CONFIG_ID }}/items?teamId=${{ secrets.VERCEL_ORG_ID }}' \ | |
| -H 'Authorization: Bearer ${{ secrets.VERCEL_TOKEN }}' \ | |
| -H 'Content-Type: application/json' \ | |
| -d $'{ "items": [ { "operation": "upsert", "key": "blue-green-configuration", "value": { "deploymentDomainBlue": "${{ steps.deploy-blue.outputs.url }}", "deploymentDomainGreen": "${{ steps.deploy-green.outputs.url }}", "trafficGreenPercent": 50 } } ] }' |