Automatic container build & publish when new release is created. (#61)

Author: greyerof

.github/workflows/release.yml

@@ -0,0 +1,55 @@
+name: Create operator's container image for the new release
+
+on:
+  release:
+    types: [published]
+
+env:
+  REGISTRY: quay.io
+  TERM: xterm-color
+  OPERATOR_IMAGE_NAME: testnetworkfunction/crd-operator-scaling
+  OPERATOR_IMAGE_TAG: ${{ github.ref_name }}
+
+jobs:
+  publish-new-version:
+    name: Build and publish new version
+    runs-on: ubuntu-22.04
+    env:
+      SHELL: /bin/bash
+
+    steps:
+      - name: Set up Go 1.20
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.20.5
+
+      - name: Disable default go problem matcher
+        run: echo "::remove-matcher owner=go::"
+
+      - name: Show release tag
+        run: "echo Version: ${{ github.ref_name }}. Full image tag: ${OPERATOR_IMAGE_NAME}:${OPERATOR_IMAGE_TAG}"
+
+      # Clone the operator repo.
+      - name: Check out crd-operator-scaling code
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.ref_name }}
+
+      # Deploy the CRD scaling repo and build it
+      - name: Build operator and make local docker image
+        run: make docker-build IMG=${OPERATOR_IMAGE_NAME}:${OPERATOR_IMAGE_TAG}
+
+      # Push the new operator image to Quay.io.
+      - name: Authenticate against Quay.io
+        if: ${{ github.repository_owner == 'test-network-function' }}
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          # Use a Robot Account to authenticate against Quay.io
+          # https://docs.quay.io/glossary/robot-accounts.html
+          username: ${{ secrets.QUAY_ROBOT_USERNAME }}
+          password: ${{ secrets.QUAY_ROBOT_TOKEN }}
+
+      - name: Push the newly built official image to Quay.io
+        if: ${{ github.repository_owner == 'test-network-function' }}
+        run: docker push ${REGISTRY}/${OPERATOR_IMAGE_NAME}:${OPERATOR_IMAGE_TAG}