Explain source image versioning for local preview container image

Tim Bannister · Tim Bannister · commit 588d7ef7ca28 · 2021-06-18T10:16:23.000+01:00
diff --git a/cloudbuild.yaml b/cloudbuild.yaml
@@ -7,6 +7,7 @@ timeout: 1200s
 options:
   substitution_option: ALLOW_LOOSE
 steps:
+    # It's fine to bump the tag to a recent version, as needed
   - name: "gcr.io/k8s-testimages/gcb-docker-gcloud:v20190906-745fed4"
     entrypoint: make
     env:
