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JupyterHub - Spawn failed - SSL: CERTIFICATE_VERIFY_FAILED

Full error code, which is displayed after you log in and JupyterHub tries to spawn a pod for you:

Spawn failed: Cannot connect to host 10.152.183.1:443 ssl:True [SSLCertVerificationError: (1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl:c:1006)')]

Some specific numbers might be different like the IP for example.

It could be solved by ssh'ing into the VM running Kubernetes (in our case it was our node00).

Source: https://discuss.kubernetes.io/t/renew-certificate-in-microk8s-cluster/19826