[Helm] Automate datasource import (#10771)

* added a new config posibility for automating datasource connections at Init

* [Helm] val piped to tpl

helm/superset/templates/configmap-superset.yaml

@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+{{- if .Values.extraConfigs }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "superset.fullname" . }}-extra-config
+  labels:
+    app: {{ template "superset.name" . }}
+    chart: {{ template "superset.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+data:
+{{- range $path, $config := .Values.extraConfigs }}
+  {{ $path }}: |
+{{ tpl $config . | indent 4 -}}
+{{- end -}}
+{{- end -}}

helm/superset/templates/init-job.yaml

@@ -51,10 +51,20 @@ spec:
           - name: superset-config
             mountPath: {{ .Values.configMountPath | quote }}
             readOnly: true
+        {{ if .Values.extraConfigs }}
+          - name: superset-extra-config
+            mountPath: {{ .Values.extraConfigMountPath | quote }}
+            readOnly: true
+        {{- end }}
         command: {{  tpl (toJson .Values.init.command) . }}
       volumes:
         - name: superset-config
           secret:
             secretName: {{ tpl .Values.configFromSecret . }}
+        {{- if .Values.extraConfigs }}
+        - name: superset-extra-config
+          configMap:
+            name: {{ template "superset.fullname" . }}-extra-config
+        {{- end }}
       restartPolicy: Never
 {{- end }}

helm/superset/values.yaml

@@ -41,8 +41,23 @@ envFromSecret: '{{ template "superset.fullname" . }}-env'
 ##
 extraEnv: {}
 
+extraConfigs: {}
+  # datasources-init.yaml: | 
+  #     databases:
+  #     - allow_csv_upload: true
+  #       allow_ctas: true
+  #       allow_cvas: true
+  #       database_name: example-db
+  #       extra: "{\r\n    \"metadata_params\": {},\r\n    \"engine_params\": {},\r\n    \"\
+  #         metadata_cache_timeout\": {},\r\n    \"schemas_allowed_for_csv_upload\": []\r\n\
+  #         }"
+  #       sqlalchemy_uri: example://example-db.local
+  #       tables: []
+
 configMountPath: "/app/pythonpath"
 
+extraConfigMountPath: "/app/configs"
+
 image:
   repository: apache/superset
   tag: latest
@@ -256,4 +271,4 @@ nodeSelector: {}
 
 tolerations: []
 
-affinity: {}
+affinity: {}