Fix MySQL compatibility in the docker images. (#140)

* Fix MySQL compatibility in the docker images.

* Test the containers with MySQL containers too!

docker-compose-mysql.yaml

@@ -0,0 +1,65 @@
+version: '2'
+
+services:
+  mailman-core:
+    image: maxking/mailman-core:latest
+    container_name: mailman-core
+    hostname: mailman-core
+    volumes:
+    - /opt/mailman/core:/opt/mailman/
+    links:
+    - database:database
+    depends_on:
+    - database
+    environment:
+    - DATABASE_URL=mysql+pymysql://mailman:mailmanpass@database/mailmandb
+    - DATABASE_TYPE=mysql
+    - DATABASE_CLASS=mailman.database.mysql.MySQLDatabase
+    - HYPERKITTY_API_KEY=someapikey
+    networks:
+      mailman:
+        ipv4_address: 172.19.199.2
+
+  mailman-web:
+    image: maxking/mailman-web:latest
+    container_name: mailman-web
+    hostname: mailman-web
+    depends_on:
+    - database
+    links:
+    - mailman-core:mailman-core
+    - database:database
+    volumes:
+    - /opt/mailman/web:/opt/mailman-web-data
+    environment:
+    - DATABASE_URL=mysql://mailman:mailmanpass@database/mailmandb
+    - DATABASE_TYPE=mysql   
+    - HYPERKITTY_API_KEY=someapikey
+    - SECRET_KEY=thisisaverysecretkey
+    - DYLD_LIBRARY_PATH=/usr/local/mysql/lib/
+    networks:
+      mailman:
+        ipv4_address: 172.19.199.3
+
+  database:
+    environment:
+      MYSQL_DATABASE: mailmandb
+      MYSQL_USER: mailman
+      MYSQL_PASSWORD: mailmanpass
+      MYSQL_RANDOM_ROOT_PASSWORD: "yes"
+    restart: always
+    image: mariadb:10.3
+    volumes:
+    - /opt/mailman/database:/var/lib/mysql
+    networks:
+      mailman:
+        ipv4_address: 172.19.199.4
+
+networks:
+   mailman:
+     driver: bridge
+     ipam:
+       driver: default
+       config:
+       -
+         subnet: 172.19.199.0/24