Run: pass missing env variables

[anhldbk]

Description

• In the past, I opened this PR: Correct env variables passed to child applications #770 to align with Env variables inconsistency docs#1835. Changes look like a mess. I closed the PR and made this one.
• CLI only passes 03 env variables to applications. See run.go#L185-L187
• There are more. See Docs
• Python SDK has a different view on such variables. See global_settings.py. This leads to not-working tutorial

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Add tests for CLI (run command) to validate env variables
• Modify code to pass the missing variables
• Refactor code (run.go can be cleaner)
• Update documentation: Env variables inconsistency docs#1835

[codecov]

Codecov Report

Merging #860 (6833cb9) into master (64c303d) will increase coverage by 0.91%.
The diff coverage is 63.90%.

@@            Coverage Diff             @@
##           master     #860      +/-   ##
==========================================
+ Coverage   22.32%   23.23%   +0.91%     
==========================================
  Files          29       29              
  Lines        1550     1588      +38     
==========================================
+ Hits          346      369      +23     
- Misses       1163     1169       +6     
- Partials       41       50       +9     

Impacted Files	Coverage Δ
pkg/standalone/run.go	59.74% <63.90%> (+0.24%)	⬆️

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[anhldbk]

@yaron2 PTAL

[yaron2]

LGTM overall.

@mukundansundar can you please take one last look before we merge?

[anhldbk]

@mukundansundar I wish this PR is merged on Jan 1st 2022. Would you pls make my dream come true?

[mukundansundar]

Overall looks good ... But my question still remains as to whether we need to expose these variables as ENV vars ... that too without DAPR prefix ...

[anhldbk]

@mukundansundar Happy new year :)

For your question, I already made a PR in our docs. Pls see

• The PR: Env variables inconsistency docs#1835
• The doc: https://docs.dapr.io/reference/environment/

[anhldbk]

@yaron2 @mukundansundar yay. You make my day. Thank you!

[rabollin]

@mukundansundar - Please prioritize this to get into 1.6 CLI release.