Etcd, or, why modern software makes me sad
Once upon a time in 2013, there was a tool called etcd which was a really lightweight database written
around the Raft consensus algorithm. This tool was
originally written in 2013 for a bullshit unsuccessful project called CoreOS Container Linux that was
EOL'd several years ago, but that doesn't really matter — etcd was greater than its original use-case. Etcd
provided a convenient and simple set of primitives (set a key, get a key, set-only-if-unchanged, watch-for-changes) with
a drop-dead simple HTTP API on top of them. I have built a number of tools using etcd as a lightweight consensus store
behind …