增加固定IP配置。对应修改readme

NginxAndLetsencrypt/sampleApp/docker-compose.yml

@@ -1,10 +1,13 @@
+
 version: "3.4"
 
-# setting networks. important when connecting other containers.
 networks:
   gitea:
     external:
       name: nginxdocker_default
+    ipam:
+      config:
+        - subnet: 192.168.16.0/20
 
 services:
   server:
@@ -16,10 +19,11 @@ services:
       - DB_HOST=db:3306
       - DB_NAME=gitea
       - DB_USER=gitea
-      - DB_PASSWD=pwd
+      - DB_PASSWD=dbpwd
     restart: always
     networks:
-      - gitea
+      gitea:
+        ipv4_address: 192.168.16.15
     volumes:
       - ./gitea:/data
     ports:
@@ -29,14 +33,17 @@ services:
       - db
 
   db:
-    image: "mysql:5.7.27"
+    image: "mysql/mysql-server"
     restart: always
     environment:
-      - MYSQL_ROOT_PASSWORD=rootpwd
+      - MYSQL_ROOT_PASSWORD=dbrootpwd
       - MYSQL_USER=gitea
-      - MYSQL_PASSWORD=pwd
+      - MYSQL_PASSWORD=dbpwd
       - MYSQL_DATABASE=gitea
     networks:
-      - gitea
+      gitea:
+        ipv4_address: 192.168.16.14
     volumes:
-      - ./mysql:/var/lib/mysql
+      - ./mysql/config/my.cnf:/etc/my.cnf
+      - ./mysql/data:/var/lib/mysql
+      - ./mysql/init:/docker-entrypoint-initdb.d