How to resolve the error "The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B53DC80D13EDEF05" while installing kubelet, kubeadm in Ubuntu bionic 18.04 linux

Hi,

I faced the issue “The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY B53DC80D13EDEF05” while I followed the demo to install and configure kubelet, kubeadm and kubectl in the local laptop using vagrant images. This is as per the instructions in the demo. But I got the above error and hence couldn’t continue. Can anyone help here?

Hi @shab1976in,
Please check the solution from the below link: -

Temporarily host apt-key.gpg as original url is failing by dims · Pull Request #4837 · kubernetes/k8s.io · GitHub

Regards,