[Feature] Add support for invert matching

[batagy]

Hi,
Thanks for your great kubectl addon!

I have a feature request, to support negate match. That is '-v' argument in grep.

Example, I have two below pods:

pci-ess-webapp-5f4fbc6666-m9pm9
pci-ess-webapp-connection-test

I want to print pods with 'webapp' string in name, except those with names 'connection-test' in it.

Something like this would be useful:

kubectl grep pods webapp -v connection-test

Thanks in advance!
György

[guessi]

@batagy thanks for your idea

Feature have been implemented with bb152d3 and should be available soon once v1.19.1 release automation done.

[batagy]

Hi @guessi , thanks a lot for fast implementation!

I quickly tested. I meant a bit different function, not the current one. It seems version 1.19.1 does only either match or inverted match, but not the both together.

Let's say below extended example, I have 3 pods:

pci-ess-init-20241108102154-k5crf
pci-ess-webapp-5f4fbc6666-m9pm9
pci-ess-webapp-connection-test

I would like to print pods with 'webapp' string in name, except those with names 'connection-test' in it.
So I don't want to print these two:

pci-ess-init-20241108102154-k5crf
pci-ess-webapp-connection-test

So I positive grep for 'webapp' , and in same command, I negative grep for word 'connection-test'.
I'd get only below printed:

pci-ess-webapp-5f4fbc6666-m9pm9

In current implementation, it seems the addon cannot grep both positive and negative at same time. When I use below command:

kubectl grep pods webapp -v connection-test

then the string after -v is ignored, and what it will do is to invert grep for word 'webapp' and I get the opposite result. The order of '-v' and the argument after it should matter.

Could you might check this?
Thanks
György