Dockerized MariaDB MaxScale with default config for a three node galera cluster. Various settings can be configured with environemnt variables.
You need to specify the addresses for DB1 through DB3 as well as passwords for service and monitoring users:
docker run -e DB1_ADDRESS=127.0.0.1 -e DB2_ADDRESS=127.0.0.2 -e DB3_ADDRESS=127.0.0.3 -e SERVICE_PWD="SuperSecret1234" -e MONITOR_PWD="EvenMoreSecret" maxscale:2.1.1
Config is done through env vars:
| Name | Default value | Description |
|---|---|---|
THREADS |
2 |
Thread count to run MaxScale |
SERVICE_USER |
maxscale |
Service user |
SERVICE_PWD |
Password for the service user | |
READ_WRITE_LISTEN_ADDRESS |
127.0.0.1 |
Listen address for read/write service |
READ_WRITE_PORT |
3307 |
Listen port for read/write service |
READ_WRITE_PROTOCOL |
MariaDBClient |
Protocol for read/write service |
MASTER_ONLY_LISTEN_ADDRESS |
127.0.0.1 |
Listen address for master only service |
MASTER_ONLY_PORT |
3306 |
Listen port for master only service |
MASTER_ONLY_PROTOCOL |
MariaDBClient |
Protocol for master onyl service |
MONITOR_USER |
maxscale |
Monitoring user |
MONITOR_PWD |
Password for the monitoring user | |
AUTH_CONNECT_TIMEOUT |
10 |
Value for [auth_connect_timeout][] |
AUTH_READ_TIMEOUT |
10 |
Value for [auth_read_timeout][] |
DB1_ADDRESS |
Address for backend DB1 | |
DB1_PORT |
3306 |
Port for backend DB1 |
DB1_PRIO |
1 |
Priority for backend DB1 |
DB2_ADDRESS |
Address for backend DB2 | |
DB2_PORT |
3306 |
Port for backend DB2 |
DB2_PRIO |
2 |
Priority for backend DB2 |
DB3_ADDRESS |
Address for backend DB3 | |
DB3_PORT |
3306 |
Port for backend DB3 |
DB3_PRIO |
3 |
Priority for bakcend DB3 |
To use a complete custom config, mount your own config file to /etc/maxscale.cnf:
docker run -v /home/customfile.cnf:/etc/maxscale.cnf maxscale:2.1.1
docker build --rm -t docker.pkg.github.com/kheekdotcom/maxscale-docker/maxscale:latest .
docker push docker.pkg.github.com/kheekdotcom/maxscale-docker/maxscale:latest