Static Golang Container via Tar

build-container

#!/usr/bin/env bash
# Makes a docker container for a static golang application.
# For a small app, this container is usually about 7mb.
#
# Usage:
#  build-container myapp myuser/myapp cmd/myapp/main.go
set -e

# Version is the git sha for HEAD
version=$(git log -1 --format=format:%H)

mkdir -p tmp

# Statically linked binary for golang 1.4
CGO_ENABLED=0 go build -a -installsuffix cgo -o tmp/$1 $3

cd tmp
# Make tar containing the binary and import into docker under repo and tag
tar cv $1 | docker import - $2:$version

# Also retag latest
docker tag -f $2:$version $2:latest

Then you can:

docker run myuser/myapp /myapp arg1 arg2