💡 Feature Request - Add validation to Accelerator workflows

[MilesCameron-DMs]

Describe the solution you'd like

Add validation to the accelerator workflows using whatif and environments in GitHub.

I have tested this and despite the issues set out in #249 it allows some validation before deploying to production and is relatively easy to implement.

Describe alternatives you've considered

None.

Additional context

How i implemented:

1. Copied the Deploy-* pipeline scripts and renamed to Validate-*
2. Amended Validate-* to use whatif
3. Amended the workflow to run a validate job using the new validate PowerShell scripts
4. Added a production environment to the GitHub repo
5. Configure the Required reviewers protection rule on the environment

Workflow:

• Create a feature branch
• Commit and create a pull request
• Workflow runs validation using whatif
• Workflow pauses due to protection rule - time to review the whatif
• Once the whatif is reviewed and we are happy with the change, approve the deployment.

[oZakari]

Hey @MilesCameron-DMs, thanks for submitting this and for sharing your approach. This is on my backlog, but if you would like to create a PR using the pipeline scripts you created that would be appreciated as well!

[MilesCameron-DMs]

Created PR: #539

I amended it slightly so it just re-uses the Deploy-* pipeline scripts and just passes a boolean for whatif

[oZakari]

Merged #539 - Another backlog item to add What-if output to PR comments.