include grep in the host OS

[bcressey]

What I'd like:
I'd like to have grep available in the host OS to help inspect logs.

Any alternatives you've considered:
Either running grep from the admin container or using other tools to find output. This can be inconvenient, especially if interrupts a troubleshooting session inside a host shell.

[swade1987]

This would've been extremely useful when needing to run the following command to remove old calico IP tables rules

iptables-save | grep -v cali- | iptables-restore

[arnaldo2792]

I already built it in my branch, I'm working in the PR 👍