CONTAINERD_NAMESPACE env var should be passed to nerdctl command inside colima

[Noksa]

Description

When we run this on MacOS:

colima nerdctl install

It creates such wrapper script:

╰─ cat /usr/local/bin/nerdctl                                        
#!/usr/bin/env sh

/opt/homebrew/bin/colima nerdctl --profile default -- "$@"

Unfortunately, when we run something like that:

╭─    ~                                                                                                                                                                                    ✔  08:00:20 PM  
╰─ CONTAINERD_NAMESPACE=k8s.io nerdctl images        
REPOSITORY    TAG    IMAGE ID    CREATED    PLATFORM    SIZE    BLOB SIZE

the env variable is not passed to the nerdctl command.
export doesn't help as well.

It is not related exactly to CONTAINERD_NAMESPACE, all variables which are used by nerdctl don't work this way.

Would be good to have a wrapper script which passes env variables.

[abiosoft]

It is not because of the wrapper script, it is because the VM does not automatically inherit the enviroment variables on the macOS host.

This should actually be worked on. I think it makes sense to pass through all CONTAINERD_ prefixed environment variables to the command.

[abiosoft]

This has been fixed.

You can test it now by installing the development version with brew install --head colima or wait for the next release.