etcdctl:tldr:4afd4

etcdctl: Watch a key for changes.

etcdctl

$ etcdctl watch ${my-key}

try on your machine

The command "etcdctl watch ${my-key}" is used to monitor changes to a specific key in an etcd cluster. Here's what each component does:

"etcdctl" is the command-line tool used to interact with etcd, a distributed key-value store that is often used as a highly available configuration and coordination service in distributed systems. It provides various functionalities to manage keys and values stored in the cluster.
"watch" is a subcommand of "etcdctl" that allows you to monitor changes to a key in real-time. When using the "watch" command, etcd will continuously watch for any modifications made to the specified key and display the changes as they occur.
"${my-key}" is a placeholder representing the key that you want to watch for changes. You would replace "${my-key}" with the actual key you want to monitor. For example, if you wanted to watch changes to a key named "foo", you would run the command "etcdctl watch foo".

Overall, this command enables you to observe any modifications made to a specific key in an etcd cluster as soon as they happen.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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