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InsulaVentus/find-docker-compose-network-interface.md

Created January 23, 2020 13:14
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find-docker-compose-network-interface.md

Determine which ip is assgined to a given container:

$ docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' <container-name>
172.23.0.2

The network inteface gateway follows the syntax; xxx.xxx.xxx.1, so in this case it will be: 172.23.0.1

Determine which interface the gateway ip is assigned to:

$ ip addr | grep 172.23.0.1
inet 172.23.0.1/16 brd 172.23.255.255 scope global br-616a87cde948

In this case the inteface is br-616a87cde948

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