alternative implementation here: https://github.com/samos123/docker-veth

[samos123]

Hope you don't view this the wrong way, but I used an alternative approach with nsenter that I believe is less error prone when running from within a container on the same host. I also fixed some of the issues such as when containers use host networking.

Here is my approach: https://github.com/samos123/docker-veth

Feel free to delete this issue if this isn't appropriate. Happy to put in pull requests as well to fix some issues in your script.

[utdrmac]

@samos123 Your script worked perfectly, out-of-box, on my Ubuntu 18.04 and docker 18.09, whereas this repo's script failed with the following:

$ sudo ./dockerveth.sh
Error: No such object: ode
511491786e33

Thank you for you script!

[mrigankchugh]

Thanks @samos123
You script worked perfectly. My containers were using host networking!

[rolanddenhollander]

@samos123 Your script worked perfectly, out-of-box, on my Ubuntu 18.04 and docker 18.09, whereas this repo's script failed with the following:

$ sudo ./dockerveth.sh
Error: No such object: ode
511491786e33

Thank you for you script!

Another issue reports that if you change "#!/bin/sh" to "#!/bin/bash"
then this script will run just fine.