etcd

cd /tmp
wget https://github.com/coreos/etcd/archive/v2.3.7.tar.gz
tar xzf v2.3.7.tar.gz

mkdir -p $GOPATH/src/github.com/coreos
ln -sf /tmp/etcd-2.3.7 $GOPATH/src/github.com/coreos/etcd
cd $GOPATH/src/github.com/coreos/etcd

GOARCH=arm GOOS=linux GOARM=6 ./build
mv bin/etcd bin/etcd-2.3.7-armv6h
mv bin/etcdctl bin/etcdctl-2.3.7-armv6h

GOARCH=arm GOOS=linux GOARM=7 ./build
mv bin/etcd bin/etcd-2.3.7-armv7h
mv bin/etcdctl bin/etcdctl-2.3.7-armv7h

etcd/
└── bin/
    ├── etcd-2.3.7-armv6h*
    ├── etcd-2.3.7-armv7h*
    ├── etcdctl-2.3.7-armv6h*
    └── etcdctl-2.3.7-armv7h*