ci: cache to base manifest only on base branch push

Author: shumkov

.github/actions/docker/action.yaml

@@ -37,6 +37,9 @@ inputs:
   aws_secret_access_key:
     description: AWS secret access key
     required: true
+  cache_to_name:
+    description: 'Save cache to name manifest (should be used only on default branch)'
+    default: 'false'
 outputs:
   digest:
     value: ${{ steps.docker_build.outputs.digest }}
@@ -79,6 +82,7 @@ runs:
         name: ${{ inputs.image_name }}
         region: ${{ inputs.region }}
         bucket: ${{ inputs.bucket }}
+        cache_to_name: ${{ inputs.cache_to_name }}
 
     - name: Set HOME variable to github context
       shell: bash

.github/actions/s3-layer-cache-settings/action.yaml

@@ -25,6 +25,9 @@ inputs:
   mode:
     description: Cache mode
     default: max
+  cache_to_name:
+    description: 'Save cache to name manifest (should be used only on default branch)'
+    default: 'false'
 
 outputs:
   cache_to:
@@ -41,14 +44,6 @@ runs:
       id: script
       with:
         script: |
-          const sanitizedHeadRef = '${{ inputs.head_ref }}'.replace(/[^a-zA-Z0-9]/g, '-');
-
-          const manifestNames = [
-            '${{ inputs.name }}_sha_${{ github.sha }}',
-            `${{ inputs.name }}_tag_${ sanitizedHeadRef }`,
-            '${{ inputs.name }}' // TODO: must be only on default branch
-          ];
-
           const settings = {
             type: 's3',
             region: '${{ inputs.region }}',
@@ -61,9 +56,30 @@ runs:
             .map(([key, value]) => `${key}=${value}`)
             .join(',');
 
-          const cacheFrom = manifestNames
+          const sanitizedHeadRef = '${{ inputs.head_ref }}'.replace(/[^a-zA-Z0-9]/g, '-');
+
+          const shaManifestName = '${{ inputs.name }}_sha_${{ github.sha }}';
+          const headRefManifestName = '${{ inputs.name }}_tag_${ sanitizedHeadRef }';
+
+          const cacheFromManifestNames = [
+            shaManifestName,
+            headRefManifestName,
+            '${{ inputs.name }}',
+          ];
+
+          const cacheFrom = cacheFromManifestNames
             .map((name) => `${settingsString},name=${name}`)
             .join('\n');
 
           core.setOutput('cache_from', cacheFrom);
+
+          const cacheToManifestNames = [
+            shaManifestName,
+            headRefManifestName,
+          ];
+          
+          if ('${{ inputs.cache_to_name }}' === 'true') {
+            cacheToManifestNames.push('${{ inputs.name }}');
+          }
+
           core.setOutput('cache_to', `${settingsString},mode=${{ inputs.mode }},name=${manifestNames.join(';')}`);

.github/workflows/tests-build-image.yml

@@ -48,3 +48,4 @@ jobs:
           region: ${{ secrets.AWS_REGION }}
           aws_access_key_id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws_secret_access_key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          cache_to_name: ${{ github.event_name == 'push' && 'true' || 'false' }}