[cloud-native-pg,inventory,workflow-manager] Helm charts for CloudNativePG cluster configuration

[Jozefiel]

Checklist

• Title of the PR starts with chart name (e.g. [krakend])
• Update the documentation if a new value has been added
• Update chart release notes annotation

[Jozefiel]

Example of configuration:

  # cat Chart.yaml
  ... 
  - condition: workflow-manager-postgres.enabled
    name: cloud-native-pg
    alias: workflow-manager-postgres
    version: "0.0.1"
    repository: "file://../cloud-native-pg"

  - condition: uniconfig-postgres.enabled
    name: cloud-native-pg
    alias: uniconfig-postgres
    version: "0.0.1"
    repository: "file://../cloud-native-pg"

# cat values.yaml
...
workflow-manager-postgres:
  enabled: true
  name: postgresql

  bootstrap:
    initdb:
      postInitApplicationSQLRefs:

  secrets:
    superuserSecret:
      username: postgres
      password: postgres
    userSecret:
      username: frinx
      password: postgres
    postInitSqlSecret:
      name: post-init-sql-secret
      sql: |-
        CREATE ROLE schellar LOGIN PASSWORD 'schellar';
        GRANT CONNECT ON DATABASE frinx TO schellar;
        CREATE USER schellar_user WITH PASSWORD 'schellar';
        GRANT schellar TO schellar_user;
        CREATE SCHEMA schellar AUTHORIZATION schellar;
        ALTER ROLE schellar SET search_path=schellar;
        ALTER USER schellar_user SET search_path TO schellar;

        CREATE ROLE inventory LOGIN PASSWORD 'inventory';
        GRANT CONNECT ON DATABASE frinx TO inventory;
        CREATE USER inventory_user WITH PASSWORD 'inventory';
        GRANT inventory TO inventory_user;
        CREATE SCHEMA inventory AUTHORIZATION inventory;
        ALTER ROLE inventory SET search_path=inventory;
        ALTER USER inventory_user SET search_path TO inventory;

        CREATE ROLE conductor LOGIN PASSWORD 'conductor';
        GRANT CONNECT ON DATABASE frinx TO conductor;
        CREATE USER conductor_user WITH PASSWORD 'conductor';
        GRANT conductor TO conductor_user;
        CREATE SCHEMA conductor AUTHORIZATION conductor;
        CREATE SCHEMA archive AUTHORIZATION conductor;
        CREATE SCHEMA external AUTHORIZATION conductor;
        ALTER ROLE conductor SET search_path=public,conductor,archive,external;
        ALTER USER conductor_user SET search_path TO conductor,archive,external;

        CREATE ROLE resource LOGIN PASSWORD 'resource';
        GRANT CONNECT ON DATABASE frinx TO resource;
        CREATE USER resource_user WITH PASSWORD 'resource';
        GRANT resource TO resource_user;
        CREATE SCHEMA resource AUTHORIZATION resource;
        ALTER ROLE resource SET search_path=resource;
        ALTER USER resource_user SET search_path TO resource;


uniconfig-postgres:
  enabled: true
  name: uniconfig-postgresql
  bootstrap:
    initdb:
      database: uniconfig
      owner: uniconfigU

  secrets:
    superuserSecret:
      username: postgres
      password: postgres
    userSecret:
      username: uniconfigU
      password: uniconfigP