jedcunningham commented on code in PR #34342:
URL: https://github.com/apache/airflow/pull/34342#discussion_r1337848677


##########
airflow/providers/cncf/kubernetes/pod_template_file_examples/git_sync_v4_template.yaml:
##########


Review Comment:
   Actually, in these templates we can do whatever we want (no backcompat 
concerns). So let's just keep the v4 one.



##########
chart/templates/_helpers.yaml:
##########
@@ -197,6 +197,7 @@ If release name contains chart name it will be used as a 
full name.
   imagePullPolicy: {{ .Values.images.gitSync.pullPolicy }}
   securityContext: {{- include "localContainerSecurityContext" 
.Values.dags.gitSync | nindent 4 }}
   env:
+    {{- if semverCompare "<4.0.0" .Values.images.gitSync.tag }}

Review Comment:
   I don't think we can just compare against the tag like this. Sure, works for 
the upstream images, but we shouldn't restrict how folks can retag in their own 
registry.
   
   If we want to do branching logic like this, we'll have to add an equivalent 
to `airflowVersion` somewhere.



##########
chart/templates/_helpers.yaml:
##########
@@ -197,6 +197,7 @@ If release name contains chart name it will be used as a 
full name.
   imagePullPolicy: {{ .Values.images.gitSync.pullPolicy }}
   securityContext: {{- include "localContainerSecurityContext" 
.Values.dags.gitSync | nindent 4 }}
   env:
+    {{- if semverCompare "<4.0.0" .Values.images.gitSync.tag }}

Review Comment:
   Alternatively, can we just set both the old and new env vars? A little 
messier, but no new version config either...



##########
helm_tests/airflow_aux/test_pod_template_file.py:
##########
@@ -62,7 +62,7 @@ def 
test_should_add_an_init_container_if_git_sync_is_true(self):
                 "images": {
                     "gitSync": {
                         "repository": "test-registry/test-repo",
-                        "tag": "test-tag",

Review Comment:
   Yep, this is an example of why inferring the version from the tag isn't safe.



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