feat(prerequisites): add postgresql to prerequistes Helm chart as an …

…optional dependency (#121)

charts/datahub/Chart.yaml

@@ -4,7 +4,7 @@ description: A Helm chart for LinkedIn DataHub
 type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 0.2.94
+version: 0.2.95
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.
 appVersion: 0.8.44

charts/datahub/values.yaml

@@ -96,6 +96,7 @@ datahubUpgrade:
   batchDelayMs: 100
   noCodeDataMigration:
     sqlDbType: "MYSQL"
+    # sqlDbType: "POSTGRES"
   podSecurityContext: {}
     # fsGroup: 1000
   securityContext: {}
@@ -154,6 +155,17 @@ global:
         secretRef: mysql-secrets
         secretKey: mysql-root-password
 
+      ## Use below for usage of PostgreSQL instead of MySQL
+      # host: "prerequisites-postgresql:5432"
+      # hostForpostgresqlClient: "prerequisites-postgresql"
+      # port: "5432"
+      # url: "jdbc:postgresql://prerequisites-postgresql:5432/datahub"
+      # driver: "org.postgresql.Driver"
+      # username: "postgres"
+      # password:
+      #   secretRef: postgresql-secrets
+      #   secretKey: postgres-password
+
   datahub:
     gms:
       port: "8080"
@@ -194,10 +206,11 @@ global:
 #      hostnames:
 #        - "broker"
 #        - "mysql"
+#        - "postgresql"
 #        - "elasticsearch"
 #        - "neo4j"
 
-##  Add below to enable SSL for kafka
+## Add below to enable SSL for kafka
 #  credentialsAndCertsSecrets:
 #    name: datahub-certs
 #    path: /mnt/datahub/certs

charts/prerequisites/Chart.yaml

@@ -4,7 +4,7 @@ description: A Helm chart for packages that Datahub depends on
 type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 0.0.9
+version: 0.0.10
 dependencies:
   - name: elasticsearch
     version: 7.16.2
@@ -24,6 +24,10 @@ dependencies:
     version: 9.1.2
     repository: https://charts.bitnami.com/bitnami
     condition: mysql.enabled
+  - name: postgresql
+    version: 11.2.2
+    repository: https://charts.bitnami.com/bitnami
+    condition: postgresql.enabled
   # This chart deploys an enterprise version of kafka that requires commercial license
   # Note, Schema registry and kafka rest proxy do not require the commercial license
   - name: cp-helm-charts

charts/prerequisites/values.yaml

@@ -56,6 +56,12 @@ mysql:
     # For better security, add mysql-secrets k8s secret with mysql-root-password, mysql-replication-password and mysql-password
     existingSecret: mysql-secrets
 
+postgresql:
+  enabled: false
+  auth:
+    # For better security, add postgresql-secrets k8s secret with postgres-password, replication-password and password
+    existingSecret: postgresql-secrets
+
 cp-helm-charts:
   # Schema registry is under the community license
   cp-schema-registry: