[aspire-repo-bot]

Backport of #20557 to release/13.6

Description

TypeScript AppHosts currently fail when configureInfrastructure assigns a bicep().parameter(...) expression to an enum-valued Azure provisioning property, such as a Storage SKU name. The generated TypeScript accepts the assignment, but publishing stops with A value of type String cannot be assigned to a BicepValue<StorageSkuName>.

Allow string-backed Bicep expressions to flow into enum-valued properties without treating string literals as enum values. This preserves type checking for literals and for incompatible expression types. No public API or additional dependencies are introduced.

User-facing usage

const storageSku = await builder.addParameter("storageSku");
const storage = await builder.addAzureStorage("storage");
await storage.configureInfrastructure(async infrastructure => {
    const account = await infrastructure.getStorageAccount();
    const sku = await infrastructure.createStorageSku();
    await sku.name.set(infrastructure.bicep().parameter(storageSku));
    await account.sku.set(sku);
});

/cc Sébastien Ros (@sebastienros)

Customer Impact

Publication failure.

Testing

Manual, deployed wit parameter.

Risk

Low

Regression?

New feature in 13.6

[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 20767

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 20767"

[aspire-repo-bot]

✅ No documentation update needed.

excluded → head_branch_is_backport, title_release_prefix, body_backport_marker (base_branch_is_release as supporting context). This is a backport to release/13.6; docs belong to the original forward PR. Triggered signals: pr_body_has_user_facing_section (PR body "User-facing usage" section).