Shulou(Shulou.com)06/01 Report--

Today, I would like to share with you the relevant knowledge of how Docker communicates across hosts. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

There are three virtual machines v1: 10.108.200 v2: 10.108.205 v3: 10.108.8.202 change the virtual machine docker0 segment

The v1 is 172.17.1.1, and the second is 172.17.2.1, and the second is 172.17.2.1, and the third is 172.17.3.1, and the latter is 24.

# v1 sudo ifconfig docker0 172.17.1.1 netmask 255.255.255.0 sudo bash-c'echo DOCKER_OPTS= "- B=docker0" > / etc/default/docker' sudo service docker restart # v2 sudo ifconfig docker0 172.17.2.1 netmask 255.255.255.0 sudo bash-c'echo DOCKER_OPTS= "- B=docker0" > > / etc/default/docker' sudo service docker restart # v3 sudo ifconfig docker0 172.17.3.1 netmask 255.255.255.0 Sudo bash-c 'echo DOCKER_OPTS= "- B=docker0" > / etc/default/docker' sudo service docker restart then add the v2 docker virtual network segment to the routing table on v1 Add the docker virtual network segment of v1 to your routing table on v2 # v1 10.108.200 sudo route add-net 172.17.2.0 netmask 255.255.255.0 gw 10.108.205 sudo iptables-t nat-F POSTROUTING > sudo iptables-t nat-A POSTROUTING-s 172.17.1.0 blade 24!-d 172.17.0.0max 16-j MASQUERADE # v2 10.108.205 v3 10.108.202 sudo route add-net 172.17.1.0 netmask 255.255.255.0 gw 10.108.200 sudo iptables-t nat-F POSTROUTING sudo iptables-t nat-A POSTROUTING-s 172.17.2.0 MASQUERADE 24!-d 172.17.0.0 MASQUERADE

At this point, the docker containers in the two virtual machines can access each other.

These are all the contents of the article "how to communicate across hosts in Docker". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.