Introduction to ETCD

Using ectdctl to create a simple key-value store

Joe Cardillo
2 min readJan 30, 2022


Keys laying on a table, all facing the same direction
Photo by Alp Duran on Unsplash

What is ETCD?

The technical definition is: “etcd is a consistent and highly-available key value store used as Kubernetes’ backing store for all cluster data.” What does that mean, though? Let’s see if we can take a look under the hood and start with the basics.

What is a key-value…