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Release 0.63#

2025-01-30 ยท Full Changelog

Gomplate is gone, so does the bloat#

For a couple of years Containerlab binary had a dependency on gomplate - a tool that delivers advanced templating capabilities, but does it at a cost of 30MB of binary size. Since we never really used much of gomplate's features, we decided to remove it and add missing templating features based on the users feedback/request.

Containerlab binary size went down from 80 to 40 MB.

sudo-less Containerlab#

Work in Progress

The sudo-less feature is still in the works as an issue has been identified with the ~/.config dir permissions that users report back.

If sudo-less doesn't work for you, please stay tuned, and use sudo as before for now.

I bet for many users prepending clab with sudo has become a pattern our finger muscles have remembered for years. Time to get rid of this habit.

Thanks to @vista- work in #2408, Containerlab 0.63.0 ships one of its biggest quality of life features - the ability to run containerlab without sudo! Now, hold your horses, it doesn't mean you can run it as a regular user, the need for privileged access is still required to manage Linux things that we do. But now we do this in a more smart and user-friendly way.

Read more about it in the docs and enjoy!

Given the sheer blast radius this change brings, we are eager to hear your feedback. Ping us on Discord.

Miscellaneous#

  • fixed environment substitution so that unset variables are not substituted #2424
  • new command: clab version check to check if a newer version is available #2420 by @FloSch62
  • openconfig server enabled by default for SR Linux #2421

Patches#

0.63.1#

  • fix SUID set in the postinstall script #2430

0.63.2#

  • update podman dependency to not fail on a ~/.config dir permissions when using sudo-less operation #2431

0.63.3#

  • added subtract template function that was used in SR OS and was removed with gomplate #2435