wip: Add mariadb primary/secondary cluster

Signed-off-by: Julius Härtl <[email protected]>

docker-compose.yml

@@ -851,6 +851,48 @@ services:
   talk-janus:
     image: ghcr.io/juliushaertl/nextcloud-dev-talk-janus:latest
 
+  mariadb-primary:
+    image: docker.io/bitnami/mariadb:10.6
+    ports:
+      - '3306'
+    volumes:
+      - 'mariadb_primary_data:/bitnami/mariadb'
+    environment:
+      - MARIADB_REPLICATION_MODE=master
+      - MARIADB_REPLICATION_USER=repl_user
+      - MARIADB_REPLICATION_PASSWORD=repl_password
+      - MARIADB_ROOT_PASSWORD=master_root_password
+      - MARIADB_USER=my_user
+      - MARIADB_PASSWORD=my_password
+      - MARIADB_DATABASE=my_database
+
+  mariadb-replica:
+    image: docker.io/bitnami/mariadb:10.6
+    ports:
+      - '3306'
+    depends_on:
+      - mariadb-primary
+    environment:
+      - MARIADB_REPLICATION_MODE=slave
+      - MARIADB_REPLICATION_USER=repl_user
+      - MARIADB_REPLICATION_PASSWORD=repl_password
+      - MARIADB_MASTER_HOST=mariadb-primary
+      - MARIADB_MASTER_PORT_NUMBER=3306
+      - MARIADB_MASTER_ROOT_PASSWORD=master_root_password
+      - MARIADB_MASTER_DELAY=180
+
+  maxscale:
+    image: mariadb/maxscale:latest
+    depends_on:
+      - mariadb-primary
+      - mariadb-replica
+    volumes:
+      - './docker/maxscale/my-maxscale.cnf:/etc/maxscale.cnf.d/my-maxscale.cnf'
+    ports:
+      - '3306'
+
+
+
 volumes:
   data:
   config:
@@ -865,6 +907,7 @@ volumes:
   smbhomes:
   elasticsearch_data:
   clam:
+  mariadb_primary_data:
 
 networks:
   default:

docker/maxscale/my-maxscale.cnf

@@ -0,0 +1,31 @@
+[primary]
+type=server
+address=mariadb-master
+port=3306
+protocol=MariaDBBackend
+
+[replica1]
+type=server
+address=mariadb-slave
+port=3306
+protocol=MariaDBBackend
+
+[MariaDB-Monitor]
+type=monitor
+module=mariadbmon
+servers=primary,replica1
+user=root
+password=master_root_password
+
+[RW-Split-Router]
+type=service
+router=readwritesplit
+servers=primary,replica1
+user=root
+password=master_root_password
+
+[RW-Split-Listener]
+type=listener
+service=RW-Split-Router
+protocol=MariaDBClient
+port=3306