TLDR
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etcdctl

 
CLI interface for interacting with etcd, a highly-available key-value pair store. More information: https://etcd.io/docs/latest/dev-guide/interacting_v3/.
 
  • Display the value associated with a specified key:
     
    etcdctl get {{my/key}}
     
  • Store a key-value pair:
     
    etcdctl put {{my/key}} {{my_value}}
     
  • Delete a key-value pair:
     
    etcdctl del {{my/key}}
     
  • Store a key-value pair, reading the value from a file:
     
    etcdctl put {{my/file}} < {{path/to/file.txt}}
     
  • Save a snapshot of the etcd keystore:
     
    etcdctl snapshot save {{path/to/snapshot.db}}
     
  • Restore a snapshot of an etcd keystore (restart the etcd server afterwards):
     
    etcdctl snapshot restore {{path/to/snapshot.db}}
     
  • Add a user:
     
    etcdctl user add {{my_user}}
     
  • Watch a key for changes:
     
    etcdctl watch {{my/key}}

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