Implement admin as Plugin

[majst01]

can be done with: spf13/cobra#691

[simcod]

Is this a time-critical task? If not, I could have a look at it:)

[majst01]

Is this a time-critical task? If not, I could have a look at it:)

I try to create a POC soon

[simcod]

Is this a time-critical task? If not, I could have a look at it:)

I try to create a POC soon

All right. Let me know if I can support you.

[majst01]

OK made created a new repo: https://github.com/metal-stack-cloud/admin-plugin and integrated that in this PR: #21

If we all find this useful i would like to force-push a fresh content to this repo and make it public

[majst01]

Should be possible again with cobra v1.8.0 released yesterday: spf13/cobra#2018

[Gerrit91]

We decided not to implement the admin CLI as a plugin for now because it was introducing too much complexity. This admin commands are now in-tree but the command is not shown in the help texts or the docs.