fix Identity property for Web container app so can need Web Identity …

[Be3751]

Purpose

• Modified the identityName property of the Web container app.
• Ensures that the user-assigned managed identity for the Web container app is created before the Web container app itself is provisioned in Bicep.
• Eliminates the need to run azd up twice to complete the provisioning process.

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no API changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code:

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Deploy the infrastructure:

azd up

What to Check

Verify that the following are valid:

• The first execution of azd up completes successfully without errors.
• The Web container app is provisioned without requiring a second azd up execution.
• The user-assigned managed identity for the Web container app exists before the Web container app is provisioned.

Other Information

Background:

• Previously, the Bicep configuration resulted in a failure during the first azd up execution.
• The failure was caused by the Web container app being provisioned before its user-assigned managed identity was fully available.
• The error message indicated that the resource was not found:

  ERROR: error executing step command 'provision': deployment failed: error deploying infrastructure: deploying to subscription:
  Deployment Error Details:
  NotFound: Resource '/subscriptions/.../resourcegroups/rg-dapralbums/providers/Microsoft.ManagedIdentity/userAssignedIdentities/id-web-ywilosqas33yy' was not found.
  

• The managed identity was successfully created, but it was likely not fully provisioned when the Web container app deployment started.
• Running azd up a second time succeeded since the managed identity was already present.

Verification:

• After applying this change, azd up now succeeds on the first attempt.
• No need to run azd up twice anymore.

[Be3751]

hi, @paulyuk. Could you review this PR?