Install package that contains envsubst

cloudbuild.yaml

@@ -64,7 +64,7 @@ steps:
     args:
       - bash
       - -c
-      - "echo 'FROM gcr.io/cloud-builders/docker:24.0.6\nRUN apt-get install make\nENTRYPOINT\
+      - "echo 'FROM gcr.io/cloud-builders/docker:24.0.6\nRUN apt-get install\nRUN apt-get install -y gettext make\nENTRYPOINT\
         \ [\"/usr/bin/make\"]' > Dockerfile.build"
     waitFor: ['-']
   - name: gcr.io/cloud-builders/docker:24.0.6
@@ -376,9 +376,7 @@ steps:
           else
             status=$?
             outputLog="${waitPids[$pid]}"
-            # Truncate .log
-            cluster=${outputLog%.*}
-            echo "One of the upgrade tests pid $pid from cluster $cluster exited with a non-zero status ${status}."
+            echo "One of the upgrade tests pid $pid from cluster log $outputLog exited with a non-zero status ${status}."
             exit $status
           fi
         done