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This operator was created with operator-sdk (https://sdk.operatorframework.io/docs/building-operators/ansible/tutorial/)

Overview

Creates postgres.db.zmrzlina.hu and postgresuser.db.zmrzlina.hu CR.

The Makefile containts a VERSION variable which needs to be updated (or overridden) when a new artifact is built.

How to

build and push the image

Using latest is useful for development.

VERSION=latest make docker-build docker-push

Make the deployment reload the latest image:

k -n ext-postgres-op-system rollout restart deployment ext-postgres-op-controller-manager

Watch operator logs:

k -n ext-postgres-op-system logs deploy/ext-postgres-op-controller-manager manager -f

Deploy the operator

(under normal circumstances this is done by Terraform somewhere else)

VERSION=latest make deploy

redeploy the whole thing in one command

VERSION=latest make undeploy deploy

Run ansible locally for testing

Use make tunnel-backend-db or kubectl port-forward deployment/zh-ambassador-app-db 15432 to make the db port available on localhost.

this would create the db with the RW user

ansible-playbook local.yaml --extra-vars "database_name=dev-op-1 secret_name_prefix=zh-db- k8s_namespace=zh-app-test-quick-1 pg_server_login_host=localhost pg_server_login_user=rdsroot pg_server_login_password=xxxx pg_server_login_port=15432 privileges=RW" --extra-vars='{"extensions": [postgis,citext]}' -vv

in order to create an RO user run this

ansible-playbook local.yaml --extra-vars "database_name=dev-op-1 secret_name_prefix=zh-db- k8s_namespace=zh-app-test-quick-1 pg_server_login_host=localhost pg_server_login_user=rdsroot pg_server_login_password=xxxx pg_server_login_port=15432 privileges=RO database_user_name=dev_op_1_ro" --extra-vars='{"extensions": [postgis,citext]}' -vv

CRD examples

Note: the operator replaces dashes with underscores in names.

apiVersion: db.zmrzlina.hu/v1alpha1
kind: Postgres
metadata:
  name: testdb-1
spec:
  database_name: testdb-1
  extensions:
    - postgis
    - citext

apiVersion: db.zmrzlina.hu/v1alpha1
kind: PostgresUser
metadata:
  name: testdb-1
spec:
  database_name: testdb-1
  secret_name_prefix: zh-db-
  privileges: RW

apiVersion: db.zmrzlina.hu/v1alpha1
kind: PostgresUser
metadata:
  name: testdb-1-ro
spec:
  database_name: testdb-1
  secret_name_prefix: zh-db-
  database_user_name: testdb-1_ro
  privileges: RO