apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres
  namespace: storage
data:
  POSTGRES_DB: postgres
  POSTGRES_USER: postgres
  PGUSER: postgres
  PGDATA: "/var/lib/postgresql/data/pgdata"

---

apiVersion: v1
kind: ConfigMap
metadata:
  name: postgres-files
  namespace: storage
data:
  postgresql-master.conf: |
    listen_addresses = '*'
    port = 5432
    max_connections = 100
    shared_buffers = 128MB
    dynamic_shared_memory_type = posix
    log_timezone = 'UTC'
    datestyle = 'iso, mdy'
    timezone = 'UTC'

    # Replication
    wal_level = hot_standby
    max_wal_senders = 5
    # wal_keep_segments = 32

  pg_hba.conf: |
    # TYPE  DATABASE        USER            ADDRESS                 METHOD

    # "local" is for Unix domain socket connections only
    local   all             all                                     trust
    # IPv4 local connections:
    host    all             all             127.0.0.1/32            trust
    # IPv6 local connections:
    host    all             all             ::1/128                 trust
    # Allow replication connections from localhost, by a user with the
    # replication privilege.
    local   replication     all                                     trust
    host    replication     all             127.0.0.1/32            trust
    host    replication     all             ::1/128                 trust

    host    replication     replication     all                     md5
    host all all all md5

  postgresql-replica.conf: |
    listen_addresses = '*'
    port = 5432
    max_connections = 100
    shared_buffers = 128MB
    dynamic_shared_memory_type = posix
    log_timezone = 'UTC'
    datestyle = 'iso, mdy'
    timezone = 'UTC'

    # Replication - replica
    hot_standby = on

  create-replica-user.sh: |
    #!/bin/bash
    set -e

    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
      CREATE ROLE replication WITH REPLICATION PASSWORD '$REPLICATION_PASSWORD' LOGIN
    EOSQL