workflow: Fix CAA build artifact upload

With the actions/upload-artifact@v4 artifacts that
are uploaded need unique names.

Previously the tag.txt was uploading in all the matrix
steps resulting in duplications, so separate it out
as a pre-job which follows the same logic as before
and then merge the arch specific files back together
in the manifest step.

Signed-off-by: stevenhorsman <[email protected]>

.github/workflows/caa_build_and_push_per_arch.yaml

@@ -51,8 +51,37 @@ defaults:
     working-directory: src/cloud-api-adaptor
 
 jobs:
+  upload_tags:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: "${{ inputs.git_ref }}"
+
+      - name: Create tags.txt
+        run: |
+          # Matches expected logic in ./hack/build.sh
+          commit=$(git rev-parse HEAD)
+          dev_tags=${{ inputs.dev_tags }}
+          release_tags=${{ inputs.release_tags }}
+          echo "dev_tags=${dev_tags:-latest,dev-${commit}}" > tags.txt
+          echo "release_tags=${release_tags:-${commit}}" >> tags.txt
+          # debug
+          cat tags.txt
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: image-tags
+          retention-days: 1
+          path: |
+            src/cloud-api-adaptor/tags.txt
+
   build_push_job:
     name: build and push
+    needs: [upload_tags]
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -87,13 +116,16 @@ jobs:
         uses: actions/setup-go@v4
         with:
           go-version: ${{ env.GO_VERSION }}
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+
       - name: Install build dependencies
         if: ${{ startsWith(matrix.type, 'dev-') }}
         run: |
           sudo apt-get update -y
           sudo apt-get install -y libvirt-dev
+
       - name: Login to quay Container Registry
         if: ${{ startsWith(inputs.registry, 'quay.io') }}
         uses: docker/login-action@v3
@@ -139,12 +171,11 @@ jobs:
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: image-artifacts
+          name: image-artifacts-${{matrix.type}}
           retention-days: 1
           path: |
-            src/cloud-api-adaptor/tags.txt
             src/cloud-api-adaptor/tags-architectures-*
-      
+
   manifest_job:
     name: generate images manifest
     runs-on: ubuntu-latest
@@ -156,11 +187,18 @@ jobs:
           fetch-depth: 0
           ref: "${{ inputs.git_ref }}"
 
+      - name: tags.txt
+        uses: actions/download-artifact@v4
+        with:
+          name: image-tags
+          path: src/cloud-api-adaptor/tags.txt
+
       - name: Download release commits file
         uses: actions/download-artifact@v4
         with:
-          name: image-artifacts
-          path: src/cloud-api-adaptor
+          pattern: my-artifact-*
+          merge-multiple: true
+          path: src/cloud-api-adaptor/tags-architectures-
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2

src/cloud-api-adaptor/hack/build.sh

@@ -22,7 +22,7 @@ release_tags=${RELEASE_TAGS:-"${commit}"}
 
 supported_arches=${ARCHES:-"linux/amd64"}
 
-tags_file="${script_dir}/../tags.txt"
+# tags_file="${script_dir}/../tags.txt"
 arch_file_prefix="${script_dir}/../tags-architectures-"
 arch_prefix="linux/"
 
@@ -84,8 +84,8 @@ function build_caa_payload_arch_specific() {
 
 	arch=${supported_arches#"$arch_prefix"}
 
-	echo "dev_tags="$dev_tags > "$tags_file"
-	echo "release_tags="$release_tags >> "$tags_file"
+	# echo "dev_tags="$dev_tags > "$tags_file"
+	# echo "release_tags="$release_tags >> "$tags_file"
 	echo "arch="$arch >> "$arch_file_prefix$arch"
 
 	local tag_string