I get the following error when running sudo apt update
on Debian.
GPG error: http://packages.cloud.google.com/apt cloud-sdk-stretch InRelease:
The following signatures were invalid: EXPKEYSIG 3746C208A7317B0F
This is a known issue.
https://cloud.google.com/compute/docs/troubleshooting/known-issues#keyexpired
Run the following command to obtain the latest key:
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -