Update Makefile to check and warn if az cli if unavailable in local

[nawazkh]

With #5288 being added to CAPZ, tiltfile will depend on az commands to peer mgmt and workload cluster VNets.
We should be updating make tilt-up command (probably as an additional dependency? )to check and warn the user az cli if not present in the local.

[brettearle]

I'm happy to jump on this

[willie-yao]

/assign @brettearle

Hi! Just wondering if you were still planning to work on this?

[brettearle]

Yeah I'll jump on it, is there a discord/slack etc for questions or is here the best?

[willie-yao]

Sweet thank you! You can find us in the Kubernetes Slack: https://github.com/kubernetes-sigs/cluster-api-provider-azure?tab=readme-ov-file#getting-help

[brettearle]

@willie-yao Hey mate, I have a couple of questions.

Are we covering all 3 os's?

Az has an install script for Linux. The script depends on openssl, python 3.8+, and libffi. What would you like to do when these are not available? I saw that the project supports Python 2.7, which will not work with this.

Do we want to reach across the network to get the install script or keep the script locally for the project?

[willie-yao]

Hi @brettearle!

Yes we should be covering all 3 os's

I think those are just a pre-requisite for CAPZ and your command shouldn't need to account for them.

If possible, it would be better to go across the network to get the install script!

If you'd like an example PR for something similar to this, check out #3630. @nawazkh Can you verify if the logic will largely be the same?

[nawazkh]

Hey @brettearle and @willie-yao ! Great depth analysis to this challenge here.

The aim of this issue is to let the user know "hey , you do not have azcli installed in your local. Please install it before moving forward."

So the way I see it, this issue can be broken down to two goals.

1. Check if az is installed in user's local.
2. Install az cli if not present.

Not that I think of it with your comment @brettearle (#5291 (comment)), installation of azcli could be unnecessary. User might have their own preference on installing a cli tool, brew, apt-get, macports, curl and move etc.
So, I think, we can drop the second goal of this issue of installing azcli and reduce the scope to first goal; "check and warn if az cli is not installed in local".

I will update this issues description as well.