I was locked out of my own app.
The connection was perfect. The code was fine. But Google’s Identity-Aware Proxy wouldn’t let me through. My git push failed. No warning. No mercy. Just an error message that made no sense until I dug in.
Identity-Aware Proxy (IAP) protects cloud apps by forcing authentication before traffic reaches them. It’s secure, but when your Git setup is out of sync with IAP’s requirements, you hit a wall. Often the fix is simple: reset your Git credentials so IAP sees you as an authorized user again.
The problem is that once credentials go stale or the OAuth token changes, Git keeps trying to reuse the wrong identity. IAP rejects it every time. This can happen after switching accounts, revoking access, or even due to inactivity.
Here’s the fast way to reset Git for Identity-Aware Proxy:
git credential-cache exit
git credential-reject https://source.developers.google.com
Then re-clone or push. Git will prompt for new credentials. If you use gcloud, run:
gcloud auth login
gcloud auth application-default login
Both ensure your local identity matches what IAP expects. If your repo is tied to a Google Cloud Source Repository, make sure you use:
gcloud source repos clone <repo-name> --project=<project-id>
This regenerates your .git/config with the correct remote URL that works with IAP.
If you work across multiple projects, keep gcloud config configurations in order. A mismatch between your active config and the IAP-protected resource is the fastest way to get locked out again.
When Git is reset and IAP is happy, pushes reach the server, access logs show success, and deployments run without manual hacks.
It’s not just about fixing IAP errors. It’s about unlocking the point where authentication and developer workflow meet without wasting hours on guesswork. If you want to see authentication and permissions work together in real time—without touching dozens of configs—try it live in minutes at hoop.dev.