It’s not that hard, here are a couple pain points:

• make sure that GOPATH is right — you want to compile against your checked out docker, not master docker

└── src
    └── github.com
        └── docker
            └── docker -> git/docker

• compile dynbinary, not binary — otherwise you’ll get

/usr/lib/golang/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/bin/ld: cannot find -ldevmapper

• get all system dependencies — this will change in future (inspired by Pavel Odvody’s Dockerfile)

btrfs-progs-devel
curl
gcc
git
golang
lvm2-devel
sqlite-devel
ca-certificates
e2fsprogs
iptables
xz-devel
lxc
glibc-static
device-mapper-devel
device-mapper-event-devel
libblkid-devel
lvm2
lvm2-libs
pkgconfig
libgudev1-devel

• get all go dependencies (can this be done with godep?)

$ go get ./...

• create autogen/dockerversion

$ bash hack/make/.go-autogen

And final command to make all happen:

$ GOPATH="$PWD/vendor:$GOPATH" ./hack/make.sh dynbinary

Run it locally:

$ sudo bundles/latest/dynbinary/docker daemon -D -H unix://$PWD/docker.sock -p ./docker.pid

Access from client:

$ sudo bundles/latest/dynbinary/docker -H unix://$PWD/docker.sock ps -a