# For development this compose file starts the database only. The app can then
# be started using `yarn start-dev`, which is useful for development, because
# it means the app Docker file doesn't have to be rebuilt on each change.
#
# Note that log is setup to give as much information as possible, including
# whether it's the master or slave database that is being used for a query.
#
# To setup and test replication, use the following config in Joplin Server. Note
# in particular the different port, which means we access the slave and not the
# master. 
#
# DB_USE_SLAVE=true
# SLAVE_POSTGRES_PASSWORD=joplin
# SLAVE_POSTGRES_DATABASE=joplin
# SLAVE_POSTGRES_USER=joplin
# SLAVE_POSTGRES_PORT=5433
# SLAVE_POSTGRES_HOST=localhost
# USERS_WITH_REPLICATION=ID1,ID2,...

version: '2'

services:

    postgresql-master:
        image: 'bitnami/postgresql:16.3.0'
        ports:
            - '5432:5432'
        environment:
            - POSTGRESQL_PASSWORD=joplin
            - POSTGRESQL_USERNAME=joplin
            - POSTGRESQL_DATABASE=joplin

            - POSTGRESQL_REPLICATION_MODE=master
            - POSTGRESQL_REPLICATION_USER=repl_user
            - POSTGRESQL_REPLICATION_PASSWORD=repl_password

            - POSTGRESQL_LOG_HOSTNAME=true
            - POSTGRESQL_PGAUDIT_LOG=READ,WRITE
            - POSTGRESQL_EXTRA_FLAGS=-c work_mem=100000 -c log_statement=all

    postgresql-slave:
        image: 'bitnami/postgresql:16.3.0'
        ports:
            - '5433:5432'
        depends_on:
            - postgresql-master
        environment:
            - POSTGRESQL_REPLICATION_MODE=slave
            - POSTGRESQL_REPLICATION_USER=repl_user
            - POSTGRESQL_REPLICATION_PASSWORD=repl_password
            - POSTGRESQL_MASTER_HOST=postgresql-master
            - POSTGRESQL_PASSWORD=joplin
            - POSTGRESQL_MASTER_PORT_NUMBER=5432

            - POSTGRESQL_LOG_HOSTNAME=true
            - POSTGRESQL_PGAUDIT_LOG=READ,WRITE
            - POSTGRESQL_EXTRA_FLAGS=-c work_mem=100000 -c log_statement=all