minietcd 
Super small and "dumb" read-only client for coreos/etcd.
Intented only for v2 protocol as of right now.
Rationale
One of the main points of Go was compiler speed.
Since Go v1.5 this is not true anymore.
Now, consider CoreOS team decision to move both etcd's client and server code into the same repository, things get even worse.
minietcd's use case is simple: get keys from etcd, do it simple, do it fast (in terms of compiling speed).
I know there's a lot of stuff this library doesn't cover but it's intentional.
Installation
Use: go get github.com/toqueteos/minietcd
Example
package main
import (
"fmt"
"log"
"os"
"github.com/toqueteos/minietcd"
)
const (
Endpoint = "127.0.0.1:4001"
Root = "foo"
)
func main() {
conn := minietcd.New()
conn.SetLoggingOutput(os.Stderr) // optional, os.Stdout by default
if err := conn.Dial(Endpoint); err != nil {
log.Fatalf("failed to connect to endpoint %q, error %q\n", Endpoint, err)
}
keys, err := conn.Keys(Root)
if err != nil {
log.Fatalf("failed to get %q keys with error %q\n", Root, err)
}
for k, v := range keys {
fmt.Println(k, v)
}
}