Deploying common PostgreSQL cluster in HA.

[ricsanfre]

Scope

Deploy a common PosgreSQL cluster to provide database services to different applications. Currently, a postgreSQL instance is required by Keycloak, using bitnami packaged helm chart, but in the future to test microservices architecture, I will need to have other postgreSQL databases.

Requirements

• Create a common namespace: databases where common databases services can be deployed, so they can be used by different applications
• Deploy PosgreSQL cluster (HA deployment)
• Migrate Keycloak installation to use external PostgreSQL database-

Possible alternatives

• Bitnami PosgreSQL helm chart
• CloudNative-PG