How to get the Kubernetes related keys from etcd? Tried to list keys in etcd but could not see related keys. Also where is etcdctl installed?
$ etcdctl
bash: etcdctl: command not found..
$ sudo netstat -tnlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:2379 0.0.0.0:* LISTEN 386/etcd
tcp 0 0 127.0.0.1:2380 0.0.0.0:* LISTEN 386/etcd
$ curl -s http://localhost:2379/v2/keys | python -m json.tool
{
"action": "get",
"node": {
"dir": true
}
}
Installed Kubernetes 1.8.5 by following Using kubeadm to Create a Cluster on CentOS 7. When I looked at Getting started with etcd, v2/keys looks to be the end point.
Usually you need to get etcdctl
by yourself. Just download the latest etcdctl
archive from etcd releases page.
Also, starting from Kubernetes version 1.6 it uses etcd version 3, so to get a list of all keys is:
ETCDCTL_API=3 etcdctl --endpoints=<etcd_ip>:2379 get / --prefix --keys-only
You can find all etcdctl v3
actions using:
ETCDCTL_API=3 etcdctl --endpoints=<etcd_ip>:2379 --help
EDIT (thanks to @leodotcloud):
In case ETCD is configured with TLS certificates support:
ETCDCTL_API=3 etcdctl --endpoints <etcd_ip>:2379 --cacert <ca_cert_path> --cert <cert_path> --key <cert_key_path> get / --prefix --keys-only