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

NginxAndLetsencrypt/server/nginx/conf/conf.d/sample.conf

@@ -23,14 +23,7 @@ server {
     ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
 
     location / {
-        #此处的IP是其他Docker Container的IP。注意：
-        #（1）不需要在compose nginx和letsencrypt的阶段就配置好下面的内容
-        #（2）配置完成后，执行 docker inspect nginxdocker_nginx_1 来确定所在网络名称。如：
-        #"Networks": {
-        #        "nginxdocker_default": {
-        #（3）在接下来要运行的应用的docker-compose文件中指定外部网络名称为上述名称。参见sampleApp示例。
-        #（4）用docker inspect命令确定应用的container的IP，填入下方即可。
-        proxy_pass http://172.17.0.1:17000; 
+        proxy_pass http://192.168.16.15:3000; 
         proxy_set_header    Host                $http_host;
         proxy_set_header    X-Real-IP           $remote_addr;
         proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;