etcdctl

etcdctl is a command-line tool that is used for interacting with the etcd distributed key-value store. etcd is a highly available and distributed key-value store that provides reliable storage for critical data in distributed systems. It is often used as a foundation for building distributed systems, service discovery, and coordination.

etcdctl allows you to interact with the etcd cluster by executing various commands such as setting, getting, and deleting keys, as well as performing more advanced operations like atomic compare-and-swap (CAS) and watching for changes in the key-value store. It provides a simple and efficient way to manage and manipulate data stored in the etcd cluster through the command line.

Using etcdctl, you can connect to an etcd cluster, specify the target server and port, and execute commands against it. It supports several authentication methods and can be configured with the appropriate credentials for secure communication with the etcd cluster.

etcdctl is a powerful tool for developers, system administrators, and operators who work with etcd clusters. It enables them to manage and query data in the etcd key-value store conveniently from the command line interface, allowing for greater flexibility and automation in managing the distributed system's configuration and coordination.