這篇文章主要講解了“docker如何在不同的Linux機(jī)器上實(shí)現(xiàn)容器通信”，文中的講解內(nèi)容簡(jiǎn)單清晰，易于學(xué)習(xí)與理解，下面請(qǐng)大家跟著小編的思路慢慢深入，一起來(lái)研究和學(xué)習(xí)“docker如何在不同的Linux機(jī)器上實(shí)現(xiàn)容器通信”吧！
創(chuàng)新互聯(lián)建站擁有十多年成都網(wǎng)站建設(shè)工作經(jīng)驗(yàn),為各大企業(yè)提供網(wǎng)站制作、成都網(wǎng)站建設(shè)服務(wù)，對(duì)于網(wǎng)頁(yè)設(shè)計(jì)、PC網(wǎng)站建設(shè)（電腦版網(wǎng)站建設(shè)）、成都App定制開(kāi)發(fā)、wap網(wǎng)站建設(shè)（手機(jī)版網(wǎng)站建設(shè)）、程序開(kāi)發(fā)、網(wǎng)站優(yōu)化（SEO優(yōu)化）、微網(wǎng)站、主機(jī)域名等，憑借多年來(lái)在互聯(lián)網(wǎng)的打拼，我們?cè)诨ヂ?lián)網(wǎng)網(wǎng)站建設(shè)行業(yè)積累了很多網(wǎng)站制作、網(wǎng)站設(shè)計(jì)、網(wǎng)絡(luò)營(yíng)銷經(jīng)驗(yàn)，集策劃、開(kāi)發(fā)、設(shè)計(jì)、營(yíng)銷、管理等網(wǎng)站化運(yùn)作于一體，具備承接各種規(guī)模類型的網(wǎng)站建設(shè)項(xiàng)目的能力。
分布式存儲(chǔ)有很多工具，今天選擇etcd工具，這個(gè)是開(kāi)源的免費(fèi)分布式存儲(chǔ)。
準(zhǔn)備實(shí)驗(yàn)環(huán)境：
docker node1 ip: 192.168.0.109
docker node2 ip: 192.168.0.107
在docker node1 上,下載解壓https://github.com/etcd-io/etcd/releases/tag/v3.3.13
vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ nohup ./etcd --name docker-node1 --initial-advertise-peer-urls http://192.168.0.109:2380 \ > --listen-peer-urls http://192.168.0.109:2380 \ > --listen-client-urls http://192.168.0.109:2379,http://127.0.0.1:2379 \ > --advertise-client-urls http://192.168.0.109:2379 \ > --initial-cluster-token etcd-cluster \ > --initial-cluster docker-node1=http://192.168.0.109:2380,docker-node2=http://192.168.0.107:2380 \ > --initial-cluster-state new & [1] 3870 vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ nohup: ignoring input and appending output to 'nohup.out'
--name 表示這個(gè)名字是docker-node1
--initial-advertise-peer-urls 表示本地地址
./etcdctl cluster-health member 72400c6f5c5691f3 is healthy: got healthy result from http://172.16.247.131:2379 member dc0810ee9a06524d is healthy: got healthy result from http://172.16.247.132:2379 cluster is healthy
在docker node2上也去執(zhí)行：
wget https://github.com/coreos/etcd/releases/download/v3.0.12/etcd-v3.0.12-linux-amd64.tar.gz vincent@swarm-worker-1:~/etcd-v3.3.13-linux-amd64$ ./etcd --name docker-node2 --initial-advertise-peer-urls http://192.168.0.107:2380 \ > --listen-peer-urls http://192.168.0.107:2380 \ > --listen-client-urls http://192.168.0.107:2379,http://127.0.0.1:2379 \ > --advertise-client-urls http://192.168.0.107:2379 \ > --initial-cluster-token etcd-cluster \ > --initial-cluster docker-node1=http://192.168.0.109:2380,docker-node2=http://192.168.0.107:2380 \ > --initial-cluster-state new &
如何確定我們的cluster已經(jīng)成功建立了：
在node1上執(zhí)行：
vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ ./etcdctl cluster-health member beb7fd3596aa26eb is healthy: got healthy result from http://192.168.0.109:2379 member e6bdc10e37172e00 is healthy: got healthy result from http://192.168.0.107:2379 cluster is healthy
然后在node2上執(zhí)行：
vincent@swarm-worker-1:~/etcd-v3.3.13-linux-amd64$ ./etcdctl cluster-health member beb7fd3596aa26eb is healthy: got healthy result from http://192.168.0.109:2379 member e6bdc10e37172e00 is healthy: got healthy result from http://192.168.0.107:2379 cluster is healthy
這樣我們就在兩臺(tái)機(jī)器上搭建了一個(gè)分布式存儲(chǔ)
因?yàn)槲覀円宒ocker知道我們要去使用分布式存儲(chǔ)。
在docker-node1上執(zhí)行：
vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ sudo service docker stop [sudo] password for vincent: vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ docker --version Docker version 17.12.0-ce, build c97c6d6
然后手動(dòng)啟動(dòng)docker：
vincent@swarm-manager:~/etcd-v3.3.13-linux-amd64$ sudo /usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store=etcd://192.168.0.109:2379 --cluster-advertise=192.168.0.109:2375& [2] 4153
在docker-node2上執(zhí)行：
sudo service docker stop sudo /usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store=etcd://192.168.0.109:2379 --cluster-advertise=192.168.0.109:2375&
在docker-node1上創(chuàng)建一個(gè)demo的overlay network
sudo docker network ls NETWORK ID NAME DRIVER SCOPE f6acf1d69b7c bridge bridge local c051f46f8a15 host host local 4caf51fb3438 none null local
docker network create -d overlay demo 1607f5636b8515d7e06d2f13261d32d8370c72de99ffb688ccdce3f6d8bce898
docker network ls NETWORK ID NAME DRIVER SCOPE f6acf1d69b7c bridge bridge local 1607f5636b85 demo overlay global c051f46f8a15 host host local 4caf51fb3438 none null local
查看overlay網(wǎng)絡(luò)的詳細(xì)信息：
重慶分公司
重慶分公司
docker network inspect demo
[
{
"Name": "demo",
"Id": "1607f5636b8515d7e06d2f13261d32d8370c72de99ffb688ccdce3f6d8bce898",
"Created": "2019-07-01T07:52:43.137469208-07:00",
"Scope": "global",
"Driver": "overlay",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "10.0.0.0/24",
"Gateway": "10.0.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {},
"Options": {},
"Labels": {}
}
]我們會(huì)看到在node2上，這個(gè)demo的overlay network會(huì)被同步創(chuàng)建:
docker network ls NETWORK ID NAME DRIVER SCOPE e944ecd3d81f bridge bridge local 1607f5636b85 demo overlay global ca2b5e91ee2f host host local cfb09007c0ce none null local
在docker-node1上創(chuàng)建容器：
docker run -d --name test1 --network demo vincent/ubuntu-base /bin/bash -c "while true; do sleep 3600; done" c86061fd856cca0d157cc602cd9b98edd9f0fa4db9a26aa77ae2b054d6d804f1
docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c86061fd856c vincent/ubuntu-base "/bin/bash -c 'while…" About a minute ago Up About a minute
查看test1的ip：
docker exec test1 ifconfig eth0 Link encap:Ethernet HWaddr 02:42:0a:00:00:02 inet addr:10.0.0.2 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1450 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) eth2 Link encap:Ethernet HWaddr 02:42:ac:12:00:02 inet addr:172.18.0.2 Bcast:172.18.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1308 (1.3 KB) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
在docker-node2上新建容器test2：
docker run -d --name test2 --network demo vincent/ubuntu-base /bin/bash -c "while true; do sleep 3600; done" 31f87913be02db7a8033b407c559a7a213445384d735239ff6504318c5077e46
在docker-node2上測(cè)試連通性
docker exec -it test2 ifconfig eth0 Link encap:Ethernet HWaddr 02:42:0a:00:00:03 inet addr:10.0.0.3 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1450 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) eth2 Link encap:Ethernet HWaddr 02:42:ac:12:00:02 inet addr:172.18.0.2 Bcast:172.18.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1308 (1.3 KB) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
這兩個(gè)container之間可以連通。
感謝各位的閱讀，以上就是“docker如何在不同的Linux機(jī)器上實(shí)現(xiàn)容器通信”的內(nèi)容了，經(jīng)過(guò)本文的學(xué)習(xí)后，相信大家對(duì)docker如何在不同的Linux機(jī)器上實(shí)現(xiàn)容器通信這一問(wèn)題有了更深刻的體會(huì)，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是創(chuàng)新互聯(lián)，小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章，歡迎關(guān)注！
