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root@ubuntu:~# calicoctl get nodes --out=wide
Failed to get resources: client: etcd cluster is unavailable or misconfigured; error #0: dial tcp 127.0.0.1:2379: getsockopt: connection refused
root@ubuntu:~# calicoctl node status
Calico process is running.
IPv4 BGP status
No IPv4 peers found.
IPv6 BGP status
No IPv6 peers found.
The connection to the server localhost:8080 was refused - did you specify the right host or port?
Unable to connect to the server: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")
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