[stable/postgresql] Adapt to new bitnami postgresql bash container (#13547)

* [stable/postgresql] Adapt to new bitnami postgresql bash container

Signed-off-by: Javier J. Salmeron Garcia <jsalmeron@bitnami.com>

* Update readme

Signed-off-by: Javier J. Salmeron Garcia <jsalmeron@bitnami.com>

* Change postgresqlDataDir

Signed-off-by: Javier J. Salmeron Garcia <jsalmeron@bitnami.com>

stable/postgresql/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: postgresql
-version: 3.18.4
+version: 4.0.0
 appVersion: 10.7.0
 description: Chart for PostgreSQL, an object-relational database management system (ORDBMS) with an emphasis on extensibility and on standards-compliance.
 keywords:

stable/postgresql/README.md

@@ -298,6 +298,16 @@ This way, the credentials will be available in all of the subcharts.
 
 ## Upgrade
 
+### 4.0.0
+
+This chart will use by default the Bitnami PostgreSQL container starting from version `10.7.0-r68`. This version moves the initialization logic from node.js to bash. This new version of the chart requires setting the `POSTGRES_PASSWORD` in the slaves as well, in order to properly configure the `pg_hba.conf` file. Users from previous versions of the chart are advised to upgrade immediately.
+
+IMPORTANT: If you do not want to upgrade the chart version then make sure you use the `10.7.0-r68` version of the container. Otherwise, you will get this error
+
+```
+The POSTGRESQL_PASSWORD environment variable is empty or not set. Set the environment variable ALLOW_EMPTY_PASSWORD=yes to allow the container to be started with blank passwords. This is recommended only for development
+```
+
 ### 3.0.0
 
 This releases make it possible to specify different nodeSelector, affinity and tolerations for master and slave pods.

stable/postgresql/templates/statefulset-slaves.yaml

@@ -116,6 +116,16 @@ spec:
           value: {{ template "postgresql.fullname" . }}
         - name: POSTGRES_MASTER_PORT_NUMBER
           value: {{ include "postgresql.port" . | quote }}
+        {{- if .Values.usePasswordFile }}
+        - name: POSTGRES_PASSWORD_FILE
+          value: "/opt/bitnami/postgresql/secrets/postgresql-password"
+        {{- else }}
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: {{ template "postgresql.secretName" . }}
+              key: postgresql-password
+        {{- end }}
         ports:
         - name: postgresql
           containerPort: {{ template "postgresql.port" . }}

stable/postgresql/values-production.yaml

@@ -96,7 +96,7 @@ postgresqlUsername: postgres
 ## PostgreSQL data dir
 ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md
 ##
-postgresqlDataDir: /bitnami/postgresql
+postgresqlDataDir: /bitnami/postgresql/data
 
 ## Specify extra initdb args
 ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md

stable/postgresql/values.yaml

@@ -102,7 +102,7 @@ postgresqlUsername: postgres
 ## PostgreSQL data dir
 ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md
 ##
-postgresqlDataDir: /bitnami/postgresql
+postgresqlDataDir: /bitnami/postgresql/data
 
 ## Specify extra initdb args
 ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md