During the running of cloud init script, following error is observed in /var/log/cloud-init-output.log file:
W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
During the running of cloud init script, following error is observed in
/var/log/cloud-init-output.log
file:W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
This is related to following Nvidia issue
A resolution is described in this blog