test: output of grep command is capital letter and AZURE_ACR_NAME should be unique

[jacobbaek]

• changed to False from false.
• can make a unique AZURE_ACR_NAME

Fixes #

Description
'az group exists' printed true/false as capital letter.
So i added the ignore-case option(-i).
Also AZURE_ACR_NAME should be unique. but if the codespace is not using, only set karpenter as the AZURE_ACR_NAME

How was this change tested?
make az-all

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

Release Note
NONE

[coveralls]

Pull Request Test Coverage Report for Build 8356808974

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 97.716%

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Totals
Change from base Build 8353624370:	0.0%
Covered Lines:	35591
Relevant Lines:	36423

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💛 - Coveralls

[tallaxes]

@jacobbaek, thank you for the contribution!

• I am curios which environment produced capitalized True/False? (Which I suspect is not valid JSON ...)
• You can (and could) set AZURE_ACR_NAME prior to running make (it uses conditional assignment)

[jacobbaek]

Hi @tallaxes ,
In my case, the core.output setting was table. so the result of grep was printed "True".
It is not problem If use the json default setting.
To clarify, I also opened PR for updating document. there is 'az config set core.output=json'.
#225
Thanks for your advice.

[tallaxes]

In my case, the core.output setting was table. so the result of grep was printed "True".

Ok, that explains it. A better fix for that command would be to not rely on the default setting and have explicit -o json or -o tsv.

And thank you for helping document non-codespace dev environment!