swarm

docker-swarm/nacos/cluser.yml

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+version: '3.8'
+
+services:
+
+
+
+  nacos1:
+    container_name: nacos1
+    image: nacos/nacos-server:latest
+    hostname: nacos1
+    restart: always
+    ports:
+      - target: 8848
+        published: 8848
+        protocol: tcp
+        mode: host  #采用host模式（默认为ingress，配置较灵活，根据自己的需求也可调整为ingress，本案例防止nacos 采用 swarm集群调度，所以改为host模式，两台服务器之间通过内网及nacos端口访问，通过nginx配置对外服务）
+    volumes:
+      - cluster1_logs:/home/nacos/logs  #配置docker存储日志的卷
+    environment:
+      MODE: cluster
+      PREFER_HOST_MODE: hostname
+      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848
+      NACOS_SERVER_IP: 192.168.3.75
+      NACOS_SERVER_PORT: 8848
+      NACOS_AUTH_ENABLE: 'true'     #1.2.0版本默认关闭登陆界面
+      MYSQL_SERVICE_HOST: mysql
+      MYSQL_SERVICE_DB_NAME: nacos_devtest
+      MYSQL_SERVICE_PORT: 3306
+      MYSQL_SERVICE_USER: nacos
+      MYSQL_SERVICE_PASSWORD: 123456
+    deploy:
+      replicas: 1       #部署时，指定部署一个副本
+      placement:
+        constraints:
+          - node.labels.env==docker-server-1
+      restart_policy:
+        condition: on-failure
+    depends_on:
+    - mysql
+    networks:
+       - srm
+
+
+
+  nacos2:
+    container_name: nacos2
+    image: nacos/nacos-server:latest
+    restart: always
+    hostname: nacos2
+    ports:
+      - target: 8848
+        published: 8848
+        protocol: tcp
+        mode: host
+    volumes:
+        - cluster2_logs:/home/nacos/logs
+    environment:
+      MODE: cluster
+      PREFER_HOST_MODE: hostname
+      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848
+      NACOS_SERVER_IP: 192.168.3.94
+      NACOS_SERVER_PORT: 8848
+      NACOS_AUTH_ENABLE: 'true'
+      MYSQL_SERVICE_HOST: mysql
+      MYSQL_SERVICE_DB_NAME: nacos_devtest
+      MYSQL_SERVICE_PORT: 3306
+      MYSQL_SERVICE_USER: nacos
+      MYSQL_SERVICE_PASSWORD: 123456
+    deploy:
+      replicas: 1
+      placement:
+        constraints:
+          - node.labels.env==docker-server-2
+      restart_policy:
+        condition: on-failure
+    depends_on:
+    - mysql
+    networks:
+       - srm
+
+
+
+  nacos3:
+    container_name: nacos3
+    image: nacos/nacos-server:latest
+    restart: always
+    hostname: nacos3
+    ports:
+      - target: 8848
+        published: 8848
+        protocol: tcp
+        mode: host
+    volumes:
+        - cluster3_logs:/home/nacos/logs
+    environment:
+      MODE: cluster
+      PREFER_HOST_MODE: hostname
+      NACOS_SERVERS: 192.168.3.75:8848 192.168.3.94:8848 192.168.3.142:8848 
+      NACOS_SERVER_IP: 192.168.3.142
+      NACOS_SERVER_PORT: 8848
+      NACOS_AUTH_ENABLE: 'true'
+      MYSQL_SERVICE_HOST: mysql
+      MYSQL_SERVICE_DB_NAME: nacos_devtest
+      MYSQL_SERVICE_PORT: 3306
+      MYSQL_SERVICE_USER: nacos
+      MYSQL_SERVICE_PASSWORD: 123456
+    deploy:
+      replicas: 1
+      placement:
+        constraints:
+          - node.labels.env==docker-server-3
+      restart_policy:
+        condition: on-failure
+    depends_on:
+    - mysql
+    networks:
+       - srm
+
+
+  mysql:
+    image: mysql:5.7.33
+    restart: always
+    container_name: mysql
+    hostname: mysql
+    ports:
+      - 3306:3306
+    volumes:
+      - /data/software/nacos/mysql/data:/var/lib/mysql
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/my.cnf:/etc/mysql/mysql.conf.d/my.cnf
+    environment:
+      TZ: Asia/Shanghai
+      MYSQL_ROOT_PASSWORD: sonar
+      MYSQL_DATABASE: nacos_devtest
+    deploy:
+      replicas: 1
+      placement:
+        constraints:
+          - node.labels.env==docker-server-1
+      restart_policy:
+        condition: on-failure
+    networks:
+       - srm
+
+volumes:
+  cluster1_logs:
+  cluster2_logs:
+  cluster3_logs:
+
+
+networks:
+  srm:
+    external: true
+
+#https://blog.51cto.com/u_12898848/4054447