add hackmd mysql version

hackmd/docker-compose-mysql.yml

@@ -0,0 +1,36 @@
+version: "3"
+services:
+  database:
+    image: mysql:5.7
+    volumes:
+      - ./data/mysql/conf:/etc/mysql
+      - ./data/mysql/logs:/var/log/mysql
+      - ./data/mysql/data:/var/lib/mysql
+    environment:
+      - MYSQL_ROOT_PASSWORD=admin
+      - MYSQL_DATABASE=codimd
+    restart: unless-stopped
+    networks:
+      nginx:
+        aliases:
+          - mysql
+  codimd:
+    image: hackmdio/hackmd:2.4.1
+    environment:
+      - CMD_DB_URL=mysql://root:admin@mysql/codimd
+      - CMD_USECDN=false
+    depends_on:
+      - database
+    ports:
+      - "3000:3000"
+    volumes:
+      - ./data/hackmd:/home/hackmd/app/public/uploads
+    restart: unless-stopped
+    networks:
+      nginx:
+        aliases:
+          - hackmd
+
+networks:
+  nginx:
+    external: true