Fix pod-template-file when kerberos enabled

chart/files/pod-template-file.kubernetes-helm-yaml

@@ -96,6 +96,12 @@ spec:
       env:
         - name: AIRFLOW__CORE__EXECUTOR
           value: LocalExecutor
+        {{- if or .Values.workers.kerberosSidecar.enabled .Values.workers.kerberosInitContainer.enabled}}
+        - name: KRB5_CONFIG
+          value:  {{ .Values.kerberos.configPath | quote }}
+        - name: KRB5CCNAME
+          value:  {{ include "kerberos_ccache_path" . | quote }}
+        {{- end }}
         {{- include "standard_airflow_environment" . | indent 6}}
         {{- include "custom_airflow_environment" . | indent 6 }}
         {{- include "container_extra_envs" (list . .Values.workers.env) | indent 6 }}
@@ -229,6 +235,11 @@ spec:
   - configMap:
       name: {{ include "airflow_config" . }}
     name: config
+  {{- if and (or .Values.webserver.webserverConfig .Values.webserver.webserverConfigConfigMapName) (or .Values.workers.kerberosInitContainer.enabled .Values.workers.kerberosSidecar.enabled)}}
+  - name: webserver-config
+    configMap:
+      name: {{ template "airflow_webserver_config_configmap_name" . }}
+  {{- end }}
   {{- if .Values.volumes }}
     {{- toYaml .Values.volumes | nindent 2 }}
   {{- end }}

helm_tests/airflow_aux/test_pod_template_file.py

@@ -1026,3 +1026,42 @@ def test_should_not_add_command_by_default(self):
         )
 
         assert None is jmespath.search("spec.containers[0].command", docs[0])
+
+    @pytest.mark.parametrize(
+        "workers_values, kerberos_init_container",
+        [
+            ({"kerberosSidecar": {"enabled": True}}, False),
+            ({"kerberosInitContainer": {"enabled": True}}, True),
+        ],
+    )
+    def test_webserver_config_for_kerberos(self, workers_values, kerberos_init_container):
+        docs = render_chart(
+            values={"workers": workers_values, "webserver": {"webserverConfigConfigMapName": "config"}},
+            show_only=["templates/pod-template-file.yaml"],
+            chart_dir=self.temp_chart_dir,
+        )
+
+        kerberos_container = "spec.containers[1].volumeMounts[*].name"
+        if kerberos_init_container:
+            kerberos_container = "spec.initContainers[0].volumeMounts[*].name"
+
+        volume_mounts_names = jmespath.search(kerberos_container, docs[0])
+        print(volume_mounts_names)
+        assert "webserver-config" in volume_mounts_names
+        assert "webserver-config" in jmespath.search("spec.volumes[*].name", docs[0])
+
+    @pytest.mark.parametrize(
+        "workers_values",
+        [{"kerberosSidecar": {"enabled": True}}, {"kerberosInitContainer": {"enabled": True}}],
+    )
+    def test_base_contains_kerberos_env(self, workers_values):
+        docs = render_chart(
+            values={
+                "workers": workers_values,
+            },
+            show_only=["templates/pod-template-file.yaml"],
+            chart_dir=self.temp_chart_dir,
+        )
+
+        scheduler_env = jmespath.search("spec.containers[0].env[*].name", docs[0])
+        assert set(["KRB5_CONFIG", "KRB5CCNAME"]).issubset(scheduler_env)