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pid2veth

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pid2veth

print the name of the virtual Ethernet associated with a container given the pid of a task in it.

Build

$ make

Testing

Start a container and get the pid of a process in it.

$ sudo docker run --name=pid2veth_test -id ubuntu
2c93a6cf1e9719ef1c842981ae4efaae37b684fe67f4f3eace4e09cba2c6c2d3
$ docker ps -q | xargs docker inspect --format '[Name:{{.Name}}][Pid:{{.State.Pid}}][ID:{{.ID}}]'
[Name:/pid2veth_test][Pid:13033][ID:2c93a6cf1e97]

Build and execute pid2veth.

$ sudo ./pid2veth 13033
veth0eb3759