ima failed usr 丟失 成功 inspect radius mode col

參考https://www.cnblogs.com/CloudMan6/p/8016994.html 上一節我們成功將 nfs 的volume掛載到 Service上，本節驗證 Failover時，數據會不會丟失。 Scale Up 增加副本，並驗證數據是否能夠同步到新啟動的容器上 [email protected]:~# docker service update --replicas 4 my_web my_web overall progress: 4 out of 4 tasks 1/4: running [==================================================>] 2/4: running [==================================================>] 3/4: running [==================================================>] 4/4: running [==================================================>] verify: Service converged [email protected]:~# docker service ps my_web ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS a2v73m955o9j my_web.1 httpd:latest host01 Running Running 13 minutes ago uzdfouv3s2bz my_web.2 httpd:latest host02 Running Running 13 minutes ago f4tg54ze3hgg my_web.3 httpd:latest host02 Running Running 14 seconds ago znf4m0jpa0r5 my_web.4 httpd:latest host01 Running Running 14 seconds ago [email protected]:~# docker inspect my_web.4.znf4m0jpa0r5p3fklp1hgdwhu | jq .[0].Mounts [ { "Type": "volume", "Name": "volume-nfs", "Source": "/var/lib/docker/volumes/volume-nfs/_data", "Destination": "/usr/local/apache2/htdocs", "Driver": "local", "Mode": "z", "RW": true, "Propagation": "" } ] [email protected]:~# docker exec my_web.4.znf4m0jpa0r5p3fklp1hgdwhu cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test [email protected]:~# docker inspect my_web.3.f4tg54ze3hggppy96jldhtdxs | jq .[0].Mounts [ { "Type": "volume", "Name": "volume-nfs", "Source": "/var/lib/docker/volumes/volume-nfs/_data", "Destination": "/usr/local/apache2/htdocs", "Driver": "local", "Mode": "z", "RW": true, "Propagation": "" } ] [email protected]:~# docker exec my_web.3.f4tg54ze3hggppy96jldhtdxs cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test 更新Volume內容，並進行驗證 [email protected]:~# echo "add test str" >> /var/nfs/index.html [email protected]:~# cat /var/nfs/index.html docker swarm nfs volume test add test str [email protected]:~# curl http://10.12.31.211 docker swarm nfs volume test add test str [email protected]:~# curl http://10.12.31.212 docker swarm nfs volume test add test str [email protected]:~# curl http://10.12.31.213 docker swarm nfs volume test add test str [email protected]:~# docker service ps my_web ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS a2v73m955o9j my_web.1 httpd:latest host01 Running Running 17 minutes ago uzdfouv3s2bz my_web.2 httpd:latest host02 Running Running 17 minutes ago f4tg54ze3hgg my_web.3 httpd:latest host02 Running Running 4 minutes ago znf4m0jpa0r5 my_web.4 httpd:latest host01 Running Running 4 minutes ago [email protected]:~# docker exec my_web.1.a2v73m955o9js3fbihf0dwei6 cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str [email protected]:~# docker exec my_web.4.znf4m0jpa0r5p3fklp1hgdwhu cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str [email protected]:~# docker exec my_web.2.uzdfouv3s2bz0ohyahjeeyqao cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str [email protected]:~# docker exec my_web.3.f4tg54ze3hggppy96jldhtdxs cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str Failover 驗證，host01關機 [email protected]:~# docker service ps my_web ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS a2v73m955o9j my_web.1 httpd:latest host01 Running Running 9 seconds ago uzdfouv3s2bz my_web.2 httpd:latest host02 Running Running 21 minutes ago f4tg54ze3hgg my_web.3 httpd:latest host02 Running Running 8 minutes ago znf4m0jpa0r5 my_web.4 httpd:latest host01 Running Running 9 seconds ago [email protected]:~# docker service ps my_web ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS i4j8tplkkq34 my_web.1 httpd:latest host02 Ready Ready less than a second ago a2v73m955o9j \_ my_web.1 httpd:latest host01 Shutdown Running 10 seconds ago uzdfouv3s2bz my_web.2 httpd:latest host02 Running Running 21 minutes ago f4tg54ze3hgg my_web.3 httpd:latest host02 Running Running 8 minutes ago ve0j4of1m1ao my_web.4 httpd:latest host02 Ready Ready less than a second ago znf4m0jpa0r5 \_ my_web.4 httpd:latest host01 Shutdown Running 10 seconds ago [email protected]:~# docker service ps my_web ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS i4j8tplkkq34 my_web.1 httpd:latest host02 Running Ready 4 seconds ago a2v73m955o9j \_ my_web.1 httpd:latest host01 Shutdown Running 15 seconds ago uzdfouv3s2bz my_web.2 httpd:latest host02 Running Running 21 minutes ago f4tg54ze3hgg my_web.3 httpd:latest host02 Running Running 8 minutes ago ve0j4of1m1ao my_web.4 httpd:latest host02 Running Ready 4 seconds ago znf4m0jpa0r5 \_ my_web.4 httpd:latest host01 Shutdown Running 15 seconds ago [email protected]:~# docker ps | grep my_web e46bd42b6fda httpd:latest "httpd-foreground" About a minute ago Up About a minute 80/tcp my_web.4.ve0j4of1m1aosbmpg9yew8dxr 5338df22fc68 httpd:latest "httpd-foreground" About a minute ago Up About a minute 80/tcp my_web.1.i4j8tplkkq348ae0tcdcrl38r 426a79228471 httpd:latest "httpd-foreground" 10 minutes ago Up 10 minutes 80/tcp my_web.3.f4tg54ze3hggppy96jldhtdxs 5c5fffec6de6 httpd:latest "httpd-foreground" 23 minutes ago Up 23 minutes 80/tcp my_web.2.uzdfouv3s2bz0ohyahjeeyqao [email protected]:~# docker exec my_web.1.i4j8tplkkq348ae0tcdcrl38r cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str [email protected]:~# docker exec my_web.4.ve0j4of1m1aosbmpg9yew8dxr cat /usr/local/apache2/htdocs/index.html docker swarm nfs volume test add test str [email protected]:~# curl http://10.12.31.211 # 因為host01 關機了，所有host01的ip也訪問不了了 curl: (7) Failed to connect to 10.12.31.211 port 80: No route to host [email protected]:~# curl http://10.12.31.212 docker swarm nfs volume test add test str [email protected]:~# curl http://10.12.31.213 docker swarm nfs volume test add test str

104、驗證Swarm數據持久性 （Swarm11）