[stable/airflow]: Added extraInitContainers option (#15690)

Signed-off-by: MahaGamal <mohaamer5@google.com>

stable/airflow/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 description: Airflow is a platform to programmatically author, schedule and monitor workflows
 name: airflow
-version: 4.0.9
+version: 4.1.0
 appVersion: 1.10.4
 icon: https://airflow.apache.org/_images/pin_large.png
 home: https://airflow.apache.org/

stable/airflow/README.md

@@ -345,6 +345,7 @@ The following table lists the configurable parameters of the Airflow chart and t
 | `airflow.extraEnv`                       | specify additional environment variables to mount       | `{}`                      |
 | `airflow.extraConfigmapMounts`           | Additional configMap volume mounts on the airflow pods. | `[]`                      |
 | `airflow.podAnnotations`                 | annotations for scheduler, worker and web pods          | `{}`                      |
+| `airflow.extraInitContainers`            | additional Init Containers to run in the scheduler pods | `[]`                      |
 | `airflow.extraContainers`                | additional containers to run in the scheduler, worker & web pods | `[]`             |
 | `airflow.extraVolumeMounts`              | additional volumeMounts to the main container in scheduler, worker & web pods | `[]`|
 | `airflow.extraVolumes`                   | additional volumes for the scheduler, worker & web pods | `[]`                      |

stable/airflow/templates/deployments-scheduler.yaml

@@ -77,6 +77,12 @@ spec:
               mountPath: /keys
             {{- end }}
       {{- end }}
+{{- if and ( .Values.airflow.extraInitContainers ) ( .Values.dags.initContainer.enabled ) }}
+{{ toYaml .Values.airflow.extraInitContainers | indent 8 }}
+{{- else if and ( .Values.airflow.extraInitContainers ) ( not .Values.dags.initContainer.enabled ) }}
+      initContainers:
+{{ toYaml .Values.airflow.extraInitContainers | indent 8 }}
+{{- end }}
       containers:
         - name: {{ .Chart.Name }}-scheduler
           image: {{ .Values.airflow.image.repository }}:{{ .Values.airflow.image.tag }}

stable/airflow/values.yaml

@@ -137,6 +137,17 @@ airflow:
   podAnnotations: {}
     ## Example:
     ## iam.amazonaws.com/role: airflow-Role
+
+  extraInitContainers: []
+  ## Additional init containers to run before the Scheduler pods.
+  ## for example, be used to run a sidecar that chown Logs storage .
+  # - name: volume-mount-hack
+  #   image: busybox
+  #   command: ["sh", "-c", "chown -R 1000:1000 logs"]
+  #   volumeMounts:
+  #     - mountPath: /usr/local/airflow/logs
+  #       name: logs-data
+
   extraContainers: []
   ## Additional containers to run alongside the Scheduler, Worker and Web pods
   ## This could, for example, be used to run a sidecar that syncs DAGs from object storage.