Intro to etcd

Covering what etcd is, what it's used for and a demo showing getting/setting data via the REST api, showing leader election and finally using the "watch" ability to watch for when a key's value is updated.

Transcript

1. etcd Chris Fidao (how to propagate your mistakes to every server)
2. what is etcd? Key-Value Storage key-a value-a key-b value-b user some-user password some-password
3. what is etcd? • highly-available key-value store • written in Go • good for • shared configuration • service discovery • feature flags
4. ok, so… what is etcd? highly-available key value store! Raft: A Distributed Consensus Protocol https://speakerdeck.com/benbjohnson/raft-the- understandable-distributed-consensus-protocol
5. a cluster behind a proxy m f f etcd Proxy App A App B Web Proxy setups
6. setups as part of each app/server App Server A m f App Server B f App Server C Web Proxy
7. using etcd is it easy?! (yes) REST api! $ curl -X PUT http://127.0.0.1:4001/v2/keys/some-key \ -d “value=some-value” $ curl http://127.0.0.1:4001/v2/keys/some-key
8. DEMO
9. thnx @fideloper ServersForHackers.com https://github.com/fideloper/ Vaprobash/ Vaprobash! Vagrant Provisioning Bash Scripts