multi-architecture builds and publish (#1681)

* Add multi-arch image builds to makefile
* A default set of platforms is specified and will build those if var `PLATFORMS` is not specified on the CLI
* Builds containers and stores @ghcr with tag that is git commit.
* Pushes the image to quay.io/ansible with tag devel.
* Update Promote to use single build point and the multi-arch manifest
   - Pulls the complete manifest containing all architectures that matches the version from ghcr
   - Tag manifest with the specified version and publish to quay.io
   - Tag manifest as 'latest' and publish to quay.io

Author: jon-nfc
Co-authored-by: Christian M. Adams <chadams@redhat.com>
Co-authored-by: TheRealHaoLiu

.github/workflows/promote.yaml

@@ -8,47 +8,76 @@ on:
       tag_name:
         description: 'Name for the tag of the release.'
         required: true
+      quay_registry:
+        description: 'Quay registry to push to.'
+        default: 'quay.io/ansible'
+
+env:
+  QUAY_REGISTRY: ${{ vars.QUAY_REGISTRY }}
 
 jobs:
   promote:
     runs-on: ubuntu-latest
     steps:
-      - name: Set TAG_NAME for workflow_dispatch event
+      - name: Set GitHub Env vars for workflow_dispatch event
         if: ${{ github.event_name == 'workflow_dispatch' }}
         run: |
           echo "TAG_NAME=${{ github.event.inputs.tag_name }}" >> $GITHUB_ENV
+          echo "QUAY_REGISTRY=${{ github.event.inputs.quay_registry }}" >> $GITHUB_ENV
 
-      - name: Set TAG_NAME for release event
+      - name: Set GitHub Env vars if release event
         if: ${{ github.event_name == 'release' }}
         run: |
           echo "TAG_NAME=${{ github.event.release.tag_name }}" >> $GITHUB_ENV
 
+      - name: Fail if QUAY_REGISTRY not set
+        run: |
+          if [[ -z "${{ env.QUAY_REGISTRY }}" ]]; then
+            echo "QUAY_REGISTRY not set. Please set QUAY_REGISTRY in variable GitHub Actions variables."
+            exit 1
+          fi
+
       - uses: actions/checkout@v3
         with:
           depth: 0
 
-      - name: Log in to GHCR
-        run: |
-          echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin
 
-      - name: Log in to Quay
-        run: |
-          echo ${{ secrets.QUAY_TOKEN }} | docker login quay.io -u ${{ secrets.QUAY_USER }} --password-stdin
+      - name: Log into registry ghcr.io
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d    # v3.0.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Re-tag and promote awx-operator image
+
+      - name: Log into registry quay.io
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d    # v3.0.0
+        with:
+          registry: ${{ env.QUAY_REGISTRY }}
+          username: ${{ secrets.QUAY_USER }}
+          password: ${{ secrets.QUAY_TOKEN }}
+
+
+      - name: Pull Tagged Staged Image and Publish to quay.io
         run: |
-          docker pull ghcr.io/${{ github.repository }}:${TAG_NAME}
-          docker tag ghcr.io/${{ github.repository }}:${TAG_NAME} quay.io/${{ github.repository }}:${TAG_NAME}
-          docker tag ghcr.io/${{ github.repository }}:${TAG_NAME} quay.io/${{ github.repository }}:latest
-          docker push quay.io/${{ github.repository }}:${TAG_NAME}
-          docker push quay.io/${{ github.repository }}:latest
+          docker buildx imagetools create \
+            ghcr.io/${{ github.repository }}:${{ env.TAG_NAME }} \
+            --tag ${{ env.QUAY_REGISTRY }}/awx-operator:${{ env.TAG_NAME }}
+
+
+      - name: Pull Staged Image and Publish to quay.io/${{ github.repository }}:latest
+        run: |
+          docker buildx imagetools create \
+            ghcr.io/${{ github.repository }}:${{ env.TAG_NAME }} \
+            --tag ${{ env.QUAY_REGISTRY }}/awx-operator:latest
+
 
       - name: Release Helm chart
         run: |
           ansible-playbook ansible/helm-release.yml -v \
-            -e operator_image=quay.io/${{ github.repository }} \
+            -e operator_image=${{ env.QUAY_REGISTRY }}/awx-operator \
             -e chart_owner=${{ github.repository_owner }} \
-            -e tag=${TAG_NAME} \
+            -e tag=${{ env.TAG_NAME }} \
             -e gh_token=${{ secrets.GITHUB_TOKEN }} \
             -e gh_user=${{ github.actor }} \
             -e repo_type=https