CODEWITHSUNDEEP
google-cloud-platformgoogle-cloud-pubsubgoogle-iam
JStew
JStew

Reputation: 145

GCP PubSub not honoring inherited permissions

Some of my service accounts are getting 403 (user not authorized) errors trying to publish/subscribe to PubSub. It appears it's not honoring "Inherited" permissions from Project level IAM.

I have verified the service accounts have IAM permissions to PubSub Subscriber & Viewer; and when I check the topic and subscriptions, they list the service accounts as type "Inherited". If I manually add the service account to the same permission from PubSub Console the UI lists it as "Mixed" and then it works.

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Background - It was working before!

What's strange is this was working fine before. I accidentally deleted these same service accounts yesterday. I recreated them the same way, setup permissions the same way and it won't work. Also, the accounts that weren't deleted still work using "Inherited" permissions.

Some other things I've tried:

Long term I guess I'd prefer to control permissions per Topic/Sub; but I'm still baffled why this isn't working or what I've done wrong.

Upvotes: 1

Views: 519

Answers (1)

Lauren
Lauren

Reputation: 1009

There currently seems to be a limitation with project-level permissions when a service account is deleted and recreated. The permissions for the newly created service account will not be propagated as expected.

If the service account is created with a different name, inherited permissions should work correctly. Note that permission propagation is not immediate and can have a delay. You may have to wait a few minutes to see the changes reflected.

For further assistance, you may need to contact Cloud Support so they can look into the specifics of your situation.

Upvotes: 2

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