I've been using this image for testing, and for almost every app I've faced this issue, today it's with kubectl. While trying to install it, yum says:
Retrieving key from https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg kubernetes/signature | 1.4 kB 00:00:00 !!! https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno -1] repomd.xml signature could not be verified for kubernetes Trying other mirror.
Tried other mirrors, but same result. I'll keep trying, would like to make it work without going to binaries and also know why this happens so often.