feat(config): add support for config.yaml file

Support for specifying a config.yaml config file was added
[here](https://github.com/metabase/metabase/pull/25986/files). I'm not
sure if this is the best way to add support for this, but would love to
have the ability to specify the databases as part of the Helm Chart
values.

charts/metabase/templates/config.yaml

@@ -13,3 +13,7 @@ data:
   log4j.properties:
 {{ toYaml .Values.log4jProperties | indent 4}}
   {{- end}}
+  config.yaml:
+    version: 1
+    config: 
+{{ toYaml .Values.config | indent 6}}

charts/metabase/templates/deployment.yaml

@@ -214,13 +214,19 @@ spec:
       serviceAccountName: {{ template "metabase.serviceAccountName" . }}
       volumes:
         {{- if .Values.log4jProperties}}
-        - name: config
+        - name: log4j
           configMap:
             name: {{ template "metabase.fullname" . }}-config
             items:
             - key: log4j.properties
               path: log4j.properties
         {{- end }}
+        - name: config
+          configMap:
+            name: {{ template "metabase.fullname" . }}-config
+            items:
+            - key: config.yaml
+              path: config.yaml
         {{- if ne (len .Values.extraVolumes) 0 }}
           {{ toYaml .Values.extraVolumes | nindent 8 }}
         {{- end }}

charts/metabase/values.yaml

@@ -92,6 +92,28 @@ session:
   # sessionCookies:
   # cookieSameSite:
 
+# Specifies the config to use as config.yaml, as per
+# https://github.com/metabase/metabase/pull/25986/files
+#
+config:
+  # users:
+  #   - first_name: Cam
+  #     last_name: Saul
+  #     password: 2cans
+  #     email: [email protected]
+  #   - first_name: Cam
+  #     last_name: Era
+  #     password: 2cans
+  #     email: [email protected]
+  # databases:
+  #   - type: postgres
+  #     host: localhost
+  #     port: 5432
+  #     name: test-data
+  #     password: {{ env MY_POSTGRES_PASSWORD }}
+  # settings:
+  #   my-setting: 1234
+
 # specify init containers, e.g. for module download
 extraInitContainers: []
 #  - name: download-modules