1. Create a dedicated Service Account for PeerDB through Google Cloud Console and specify the following roles:
  • Pub/Sub Viewer : PeerDB requires this role to check if your provided topic exists.
  • Pub/Sub Publisher : PeerDB requires this role to publish messages to the topic.

    Create a dedicated Service Account For PeerDB and grant the necessary permissions

  1. Add a key to the above created service account

    Add Key to the Service Account

    Key Added to the Service Account

  2. Using this service account key create the peer using PeerDB UI

    Create PubSub Peer

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Topic creation

By default, you would need to create the destination topic in PubSub before creating a mirror. However, if you’d like PeerDB to create the topic for you, you can turn on the following setting in PeerDB UI:

Add Key to the Service Account

Note that you must create a subscription on the topic for messages to be retained.