Tag autoscan with sortable tags

services/auto-scan/cloudbuild.yaml

@@ -15,28 +15,40 @@ steps:
     args: ["-c", "pip3 install -r requirements.txt && python3 -m pytest"]
 
   - name: 'gcr.io/cloud-builders/docker'
-    id: build-auto-scan-if-master
+    id: generate-image-name
     entrypoint: 'bash'
     dir: services/auto-scan
     args:
-    -  '-c'
-    - |
-      if [[ "$BRANCH_NAME" == "master" ]]
-      then
-        docker build -t gcr.io/$PROJECT_ID/services/autoscan:$BRANCH_NAME-$SHORT_SHA .
-      else
-        exit 0
-      fi
+      - '-c'
+      - |
+        echo "gcr.io/$PROJECT_ID/services/autoscan:$BRANCH_NAME-$SHORT_SHA-$(date +%s)" > /workspace/imagename
 
   - name: 'gcr.io/cloud-builders/docker'
-    id: push-auto-scan-if-master
+    id: build-if-master
     entrypoint: 'bash'
+    dir: services/auto-scan
+    args:
+      - '-c'
+      - |
+        if [[ "$BRANCH_NAME" == "master" ]]
+        then
+          image=$(cat /workspace/imagename)
+          docker build -t $image .
+        else
+          exit 0
+        fi
+
+  - name: 'gcr.io/cloud-builders/docker'
+    id: push-if-master
+    entrypoint: 'bash'
+    dir: services/auto-scan
     args:
-    -  '-c'
-    -  |
-       if [[ "$BRANCH_NAME" == "master" ]]
-       then
-         docker push gcr.io/$PROJECT_ID/services/autoscan:$BRANCH_NAME-$SHORT_SHA
-       else
-         exit 0
-       fi
+      - '-c'
+      - |
+        if [[ "$BRANCH_NAME" == "master" ]]
+        then
+          image=$(cat /workspace/imagename)
+          docker push $image
+        else
+          exit 0
+        fi