Set Unauthenticated as the authentication provider in the default Docker image config

[Copilot]

Why make this change?

PR #3074 introduced Unauthenticated as the new default authentication provider. The dab-config.json shipped in the Docker image (quick-starter) was still referencing the old Simulator provider and needs to be aligned.

What is this change?

• Updated dab-config.json (root-level, copied into the Docker image via COPY dab-config.json /App/dab-config.json) to use Unauthenticated instead of Simulator as the authentication provider.

 "authentication": {
-  "provider": "Simulator"
+  "provider": "Unauthenticated"
 }

Unauthenticated treats all requests as anonymous without simulating auth claims, which is the correct default for a quick-starter config. Simulator was a development-only mode that would inject fake authenticated identities.

How was this tested?

The Docker image can start up with the updated default config values in dab-config.json.

Sample Request(s)

No API behavior change — this only affects the default provider in the shipped config. Users connecting to the Docker image will have all requests processed as the anonymous role by default.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Set Unauthenticated as the authentication provider in the default config image</issue_title>
<issue_description>- PR #3074 created the Unauthenticated provider as the new default.

• Switch to that in the dab-config.json that we will be shipping in the docker image as a quick starter.</issue_description>

<agent_instructions>Adhere to formatting rules.
Test by ensuring the docker image can start up with the default config values in dab-config.json</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Set Unauthenticated as the authentication provider in the default config image #3247

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[Copilot]

Pull request overview

Updates the Docker image’s shipped quick-starter configuration (dab-config.json) to align with the newer default authentication provider behavior by using Unauthenticated instead of the legacy Simulator provider.

Changes:

• Switch runtime.host.authentication.provider from Simulator to Unauthenticated in the root dab-config.json.

[souvikghosh04]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 6 pipeline(s).

[anushakolan]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 6 pipeline(s).