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這篇文章主要講解了“compose文件怎么在swarm中創(chuàng)建集群”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“compose文件怎么在swarm中創(chuàng)建集群”吧！
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簡介
一、與上面環(huán)境不一致之處： 1.使用了etcd集群集群地址為:10.0.102.214:2379,10.0.102.175:2379,10.0.102.191:2379 2.解決網(wǎng)絡通信問題：讓docker stack 共用同一網(wǎng)絡：因stack部署時會以stack名稱創(chuàng)建網(wǎng)絡，所以保持相同stack名字在同一網(wǎng)絡中。如下所示： docker stack deploy -c compose_swarm_1.yaml stack名 docker stack deploy -c compose_swarm_2.yaml stack名 docker stack deploy -c compose_swarm_3.yamlstack名
準備工作
各個節(jié)點創(chuàng)建需要掛載的目錄及準備掛載的文件(如開啟binlog的Mariadb配置文件) #mkdir /data1/ #mkdir /etc/my.cnf.d 在k8s-node-3節(jié)點上創(chuàng)建開啟binlog的mariadb配置文件 # vim /etc/my.cnf.d/bin-log.cnf [MySQLd] log-bin= mysql-bin log_slave_updates = 1 expire_logs_days = 20 server-id = 211
master節(jié)點部署操作
[root@node-1 ~]# docker stack deploy -c compose_swarm_1.yaml swarm_mariadb 【見圖1】 [root@node-1 ~]# docker stack deploy -c compose_swarm_2.yaml swarm_mariadb 【見圖2】 [root@node-1 ~]# docker stack deploy -c compose_swarm_3.yaml swarm_mariadb 【見圖3】 檢查 [root@node-1 ~]#docker service ls 【見圖4】 [root@node-1 ~]# docker stack ps swarm_mariadb 【見圖5】 [root@node-1 ~]# docker exec -it a40e41c2219a /bin/bash [root@a40e41c2219a /]# mysql -uroot –pmypassword MariaDB [(none)]> show status like 'wsrep%'; 【見圖6】 或者 [root@node-1 ~]# mysql -uroot -pmypassword -h node-1 -P 3311 -e "show status like 'wsrep%';"
yaml文件
compose_swarm_1.yaml
version: '3' services: mariadb_galera_swarm0: #service名，3個文件各不相同 deploy: replicas: 1 #每個service下只有1個容器 restart_policy: condition: on-failure delay: 10s max_attempts: 10 window: 100s placement: constraints: [node.hostname==node-1] #將容器運行在固定節(jié)點之上 update_config: parallelism: 1 delay: 3m # higher than SST duration image: severalnines/mariadb:10.1 ports: - "3310:3306" #暴露的端口3個節(jié)點不能相同 environment: #創(chuàng)建集群相關環(huán)境務必一致 CLUSTER_NAME: "mariadb_cluster_swarm" DISCOVERY_SERVICE: "10.0.102.218:2379,10.0.102.151:2379,10.0.102.162:2379" MYSQL_ROOT_PASSWORD: "mypassword" XTRABACKUP_PASSWORD: "mypassword" command: - --innodb_buffer_pool_size=256M - --max_connections=81 volumes: #根據(jù)需求進行掛載 - /etc/my.cnf.d:/etc/my.cnf.d - /data2:/var/lib/mysql - /etc/localtime:/etc/localtime healthcheck: interval: 5s timeout: 3s retries: 200 # interval * retries > SST duration networks: - galera_swarm #網(wǎng)絡 networks: galera_swarm: driver: overlay
compose_swarm_2.yaml
version: '3' services: mariadb_galera_swarm1: deploy: replicas: 1 restart_policy: condition: on-failure delay: 10s max_attempts: 10 window: 100s placement: constraints: [node.hostname==node-2] update_config: parallelism: 1 delay: 3m # higher than SST duration image: severalnines/mariadb:10.1 ports: - "3312:3306" network_mode: host environment: CLUSTER_NAME: "mariadb_cluster_swarm" DISCOVERY_SERVICE: "10.0.102.218:2379,10.0.102.151:2379,10.0.102.162:2379" MYSQL_ROOT_PASSWORD: "mypassword" XTRABACKUP_PASSWORD: "mypassword" command: - --innodb_buffer_pool_size=256M - --max_connections=81 volumes: - /etc/my.cnf.d:/etc/my.cnf.d - /data2:/var/lib/mysql - /etc/localtime:/etc/localtime healthcheck: interval: 5s timeout: 3s retries: 200 # interval * retries > SST duration networks: - galera_swarm networks: galera_swarm: driver: overlay
compose_swarm_3.yaml
version: '3' services: mariadb_galera_swarm2: deploy: replicas: 1 restart_policy: condition: on-failure delay: 10s max_attempts: 10 window: 100s placement: constraints: [node.hostname==node-3] update_config: parallelism: 1 delay: 3m # higher than SST duration image: severalnines/mariadb:10.1 ports: - "3313:3306" network_mode: host environment: CLUSTER_NAME: "mariadb_cluster_swarm" DISCOVERY_SERVICE: "10.0.102.218:2379,10.0.102.151:2379,10.0.102.162:2379" MYSQL_ROOT_PASSWORD: "mypassword" XTRABACKUP_PASSWORD: "mypassword" command: - --innodb_buffer_pool_size=256M - --max_connections=81 volumes: - /etc/my.cnf.d:/etc/my.cnf.d - /data2:/var/lib/mysql - /etc/localtime:/etc/localtime healthcheck: interval: 5s timeout: 3s retries: 200 # interval * retries > SST duration networks: - galera_swarm networks: galera_swarm: driver: overla
感謝各位的閱讀，以上就是“compose文件怎么在swarm中創(chuàng)建集群”的內容了，經過本文的學習后，相信大家對compose文件怎么在swarm中創(chuàng)建集群這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是創(chuàng)新互聯(lián)，小編將為大家推送更多相關知識點的文章，歡迎關注！
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