建立一個(gè)overlay驅(qū)動(dòng)的網(wǎng)路
docker?network?create?-d?overlay?wordpress [vagrant@swarm-manager?~]$?docker?network?ls NETWORK?ID?NAME?DRIVER?SCOPE q3rp3i79eud7?wordpress?overlay?swarm
建立mysql容器
docker?service?create?--name?mysql?--env?MYSQL_ROOT_PASSWORD=root?--env?MYSQL_DATABASE=wordpress?--network?wordpress?--mount?type=volume,source=mysql-data,destination=/var/lib/mysql?mysql
建立wordpress
docker?service?create?--name?wordpress?-p?80:80?--env?WORDPRESS_DB_PASSWORD=root?--env?WORDPRESS_DB_HOST=mysql?--network?wordpress?wordpress
查看節(jié)點(diǎn)分佈
#?服務(wù)列表 [vagrant@swarm-manager?~]$?docker?service?ls ID?NAME?MODE?REPLICAS?IMAGE?PORTS vxz0bfmul9th?mysql?replicated?1/1?mysql:5.7.22 cpe3wqrsoqxi?wordpress?replicated?1/1?wordpress:latest?*:80->80/tcp #?wordpress服務(wù)的節(jié)點(diǎn)分布 [vagrant@swarm-manager?~]$?docker?service?ps?wordpress ID?NAME?IMAGE?NODE?DESIRED?STATE?CURRENT?STATE?ERROR?PORTS tnh4f0ldyidl?wordpress.1?wordpress:latest?swarm-manager?Running?Running?4?minutes?ago #?mysql服務(wù)的節(jié)點(diǎn)分布 [vagrant@swarm-manager?~]$?docker?service?ps?mysql ID?NAME?IMAGE?NODE?DESIRED?STATE?CURRENT?STATE?ERROR?PORTS jns8bllzbz94?mysql.1?mysql:5.7.22?swarm-work1?Running?Running?33?minutes?ago
雖然wordpress 只分佈在了swarm-manager（192.168.205.10）這一個(gè)節(jié)點(diǎn)上，但是我們發(fā)現(xiàn)使用如下鏈接訪問，效果都是一樣的，是不是很神奇。 。 。具體原因詳見7.6
http://192.168.205.10/ http://192.168.205.11/ http://192.168.205.12/
在 swarm 模式下，無需安裝etcd，swarm會(huì)自動(dòng)幫我們維護(hù)好分散式的overlay網(wǎng)路
