EventArc has permissions denied when using events on a non-enabled pubsub project.

[dackers86]

• Extension name: storage-resize-images
• Extension version: 0.1.28
• Configuration values (redact info where appropriate): Events:
  • [x] firebase.extensions.storage-resize-images.v1.complete

There is an issue for users when calling events through event-arc. Permissions are not available for pub-sub.

Please see https://github.com/firebase/extensions/pull/967#issuecomment-1186171281 and https://github.com/firebase/extensions/issues/1079

Steps to reproduce:

1. On a brand new project, install the extension and select the complete event stated above.
2. Deploy a new cloud function with the following example:

import {onCustomEventPublished} from "firebase-functions/v2/eventarc";

export const customhandler = onCustomEventPublished(
    "firebase.extensions.storage-resize-images.v1.complete",
    (e) => {
      console.log("it works!", JSON.stringify(e));
    }
)

3. Resize an image through the extension.

Expected result

Your cloud function will successfully log out the new image resize event.

Actual result

Cloud function is not invoked, Permissions denied error in Eventarc Trigger.

[yamankatby]

Hi @dackers86, Blocked due to waiting for feedback from a similar issue: https://github.com/firebase/extensions/issues/1136