这篇文章主要讲解了“compose文件怎么在swarm中创建集群”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“compose文件怎么在swarm中创建集群”吧！
一、与上面环境不一致之处： 1.使用了etcd集群 集群地址为:10.0.102.214:2379,10.0.102.175:2379,10.0.102.191:2379 2.解决网络通信问题： 让docker stack 共用同一网络：因stack部署时会以stack名称创建网络，所以保持相同stack名字在同一网络中。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
计算
安全
数据库
网络和加速
企业服务
各个节点创建需要挂载的目录及准备挂载的文件(如开启binlog的Mariadb配置文件)
#mkdir /data1/
#mkdir /etc/my.cnf.d
在k8s-node-3节点上创建开启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[root@node-1 ~]# docker stack deploy -c compose_swarm_1.yaml swarm_mariadb
【见图1】
[root@node-1 ~]# docker stack deploy -c compose_swarm_2.yaml swarm_mariadb
【见图2】
[root@node-1 ~]# docker stack deploy -c compose_swarm_3.yaml swarm_mariadb
【见图3】
检查
[root@node-1 ~]#docker service ls
【见图4】
[root@node-1 ~]# docker stack ps swarm_mariadb
【见图5】
[root@node-1 ~]# docker exec -it a40e41c2219a /bin/bash
[root@a40e41c2219a /]# mysql -uroot –pmypassword
MariaDB [(none)]> show status like 'wsrep%';
【见图6】
或者
[root@node-1 ~]# mysql -uroot -pmypassword -h node-1 -P 3311 -e "show status like 'wsrep%';"
version: '3'
services:
mariadb_galera_swarm0: #service名，3个文件各不相同
deploy:
replicas: 1 #每个service下只有1个容器
restart_policy:
condition: on-failure
delay: 10s
max_attempts: 10
window: 100s
placement:
constraints: [node.hostname==node-1] #将容器运行在固定节点之上
update_config:
parallelism: 1
delay: 3m # higher than SST duration
image: severalnines/mariadb:10.1
ports:
- "3310:3306" #暴露的端口3个节点不能相同
environment: #创建集群相关环境务必一致
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: #根据需求进行挂载
- /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 #网络
networks:
galera_swarm:
driver: overlayversion: '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: overlayversion: '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感谢各位的阅读，以上就是“compose文件怎么在swarm中创建集群”的内容了，经过本文的学习后，相信大家对compose文件怎么在swarm中创建集群这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是亿速云，小编将为大家推送更多相关知识点的文章，欢迎关注！
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原文链接：https://my.oschina.net/wuzsheng/blog/3170998
