Copy on insecure registries

[andmagom]

What steps did you take:
I would like to copy images between insecure registries, I executed this command
imgpkg copy --registry-insecure -b registry.192.168.20.40.nip.io:5000/myimage --to-repo registry.192.168.20.40.nip.io:5000/myimage2

What happened:
I got this error

What did you expect:
If I set the --registry-insecure flag, I should like to be able to copy images between insecure registries

Environment:

• imgpkg version (use imgpkg --version): imgpkg version 0.14.0
• Docker registry used (e.g. Docker HUB): registry:v2 - docker image
• OS (e.g. from /etc/os-release): Mac OS

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[DennisDenuto]

Can reproduce. The image references provided to MultiWrite are losing the insecure option, hence when the ggcr library 'pings' the registry it doesn't 'fallback' to using http.

https://github.com/vmware-tanzu/carvel-imgpkg/blob/ee3d2f72ca3f9750939ca366097454074d2d0d04/pkg/imgpkg/registry/registry.go#L127

[DennisDenuto]

Submitted PR #197

[andmagom]

Thanks Dennis !

[DennisDenuto]

Released on https://github.com/vmware-tanzu/carvel-imgpkg/releases/tag/v0.15.0