exportETCDCTL_API=3ENDPOINTS=localhost:2379
etcdctl --endpoints=${ENDPOINTS} role add root
etcdctl --endpoints=${ENDPOINTS} role get root
etcdctl --endpoints=${ENDPOINTS} user add root
etcdctl --endpoints=${ENDPOINTS} user grant-role root root
etcdctl --endpoints=${ENDPOINTS} user get root
etcdctl --endpoints=${ENDPOINTS} role add role0
etcdctl --endpoints=${ENDPOINTS} role grant-permission role0 readwrite foo
etcdctl --endpoints=${ENDPOINTS} user add user0
etcdctl --endpoints=${ENDPOINTS} user grant-role user0 role0
etcdctl --endpoints=${ENDPOINTS} auth enable# now all client requests go through authetcdctl --endpoints=${ENDPOINTS} --user=user0:123 put foo bar
etcdctl --endpoints=${ENDPOINTS} get foo
# permission denied, user name is empty because the request does not issue an authentication requestetcdctl --endpoints=${ENDPOINTS} --user=user0:123 get foo
# user0 can read the key fooetcdctl --endpoints=${ENDPOINTS} --user=user0:123 get foo1