[WIFI-3150] Add: external databases as optional dependencies for Helm chart

helm/Chart.yaml

@@ -1,5 +1,18 @@
-apiVersion: v1
+apiVersion: v2
 appVersion: "1.0"
 description: A Helm chart for Kubernetes
 name: ucentralsec
 version: 0.1.0
+dependencies:
+- name: postgresql
+  repository: https://charts.bitnami.com/bitnami
+  version: 10.9.2
+  condition: postgresql.enabled
+- name: mysql
+  repository: https://charts.bitnami.com/bitnami
+  version: 8.8.3
+  condition: mysql.enabled
+- name: mariadb
+  repository: https://charts.bitnami.com/bitnami
+  version: 9.4.2
+  condition: mariadb.enabled

helm/values.yaml

@@ -214,3 +214,64 @@ certs:
   # restapi-ca.pem: ""
   # restapi-cert.pem: ""
   # restapi-key.pem: ""
+
+# PostgreSQL (https://github.com/bitnami/charts/tree/master/bitnami/postgresql)
+postgresql:
+  enabled: false
+
+  image:
+    registry: docker.io
+    repository: bitnami/postgresql
+    tag: 11.13.0-debian-10-r0
+
+  postgresqlPostgresPassword: ""
+  postgresqlUsername: postgres
+  postgresqlPassword: ""
+  postgresqlDatabase: ""
+
+  persistence:
+    enabled: true
+    storageClass: ""
+    size: 8Gi
+
+# MySQL (https://github.com/bitnami/charts/tree/master/bitnami/mysql)
+mysql:
+  enabled: false
+
+  image:
+    registry: docker.io
+    repository: bitnami/mysql
+    tag: 8.0.26-debian-10-r10
+
+  auth:
+    rootPassword: ""
+    database: my_database
+    username: ""
+    password: ""
+
+  primary:
+    persistence:
+      enabled: true
+      storageClass: ""
+      size: 8Gi
+
+# MariaDB (https://github.com/bitnami/charts/tree/master/bitnami/mariadb)
+mariadb:
+  enabled: false
+
+  image:
+    registry: docker.io
+    repository: bitnami/mariadb
+    tag: 10.5.12-debian-10-r0
+
+  auth:
+    rootPassword: ""
+    database: my_database
+    username: ""
+    password: ""
+
+  primary:
+    persistence:
+      enabled: true
+      storageClass: ""
+      size: 8Gi