Add explanation of certgen Job image tag usage (#2424)

Updates #2423 Updates #2395 Updates #2150 Updates #2030 Signed-off-by: Nick Young <[email protected]>
projectcontour · Apr 9, 2020 · 6c444d4 · 6c444d4
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diff --git a/examples/contour/02-job-certgen.yaml b/examples/contour/02-job-certgen.yaml
@@ -52,6 +52,10 @@ spec:
     spec:
       containers:
       - name: contour
+        # This version is set to latest because Job specs are immutable;
+        # if we change this on each version, you can no longer upgrade
+        # just by applying the deployment YAML.
+        # See #2423, #2395, #2150, and #2030 for earlier questions about this.
         image: docker.io/projectcontour/contour:latest
         imagePullPolicy: Always
         command:

diff --git a/examples/render/contour.yaml b/examples/render/contour.yaml
@@ -1362,6 +1362,10 @@ spec:
     spec:
       containers:
       - name: contour
+        # This version is set to latest because Job specs are immutable;
+        # if we change this on each version, you can no longer upgrade
+        # just by applying the deployment YAML.
+        # See #2423, #2395, #2150, and #2030 for earlier questions about this.
         image: docker.io/projectcontour/contour:latest
         imagePullPolicy: IfNotPresent
         command: