Alpine Docker Dev Host Setup

alpine-docker-setup.sh

#/bin/sh

# 
# The following assumes a default Alpine install using the standard Alpine image
#
# Note: for VirtualBox, you could be tempted to use the `alpine-virt` image,
# however it uses the `virtgrsec` kernel, for which there is no guest additions support

# if required, SSH root password access can be enabled by adding `PermitRootLogin yes`
# to `/etc/ssh/sshd_config`

# VirtualBox networking:
# Network > Adapter 1 > Host-only Adapter: this will allow communication between host and guest
# Network > Adapter 2 > NAT: this will let the guest connect to the internet
# Note: the order of the adapters is important!
#
# Make sure `/etc/network/interfaces` has the following (this makes sure both interface are up with static IPs):
#
# auto eth1
# iface eth1 inet static
#        address 10.0.3.15
#        netmask 255.255.255.0
#        gateway 10.0.3.2
#
# auto eth0
# iface eth0 inet static
#        address 192.168.56.101
#        netmask 255.255.255.0
#
# DNS, edit `/etc/resolv.conf` to have the following,
# note that the first nameserver depends on having the DNS docker container running, see below:
#
# nameserver 172.17.0.1
# nameserver 8.8.8.8
# nameserver 8.8.4.4

# use main and community and repos on `dl-2` mirror
# - edge repos added for Docker 1.12
#     (default 1.11 has grsec issue: https://github.com/docker/docker/pull/22506)
echo -e "http://dl-2.alpinelinux.org/alpine/v3.4/main\nhttp://dl-2.alpinelinux.org/alpine/v3.4/community\nhttp://dl-2.alpinelinux.org/alpine/edge/main\nhttp://dl-2.alpinelinux.org/alpine/edge/community\n" > /etc/apk/repositories

# detect VirtualBox
dmidecode -s system-product-name
if [ $? == 'VirtualBox' ] ;then
  IS_VIRTUALBOX="Y"
else 
  IS_VIRTUALBOX="N"
fi

# add edge/testing for VirtualBox grsec additions
if [ "$IS_VIRTUALBOX" == "Y" ]; then
  echo -e "http://dl-2.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
fi

apk update
apk upgrade

# add `curl`, `docker`, `drill` (`dig` equivalent), `python` (2.7), `pip`
apk add --no-cache curl docker drill python py-pip

# add VirtualBox guest additions
if [ "$IS_VIRTUALBOX" == "Y" ]; then
  apk add --no-cache virtualbox-additions-grsec virtualbox-guest-modules-grsec virtualbox-guest-additions

  echo -e "vboxpci\nvboxdrv\nvboxnetflt" >> /etc/modules

  rc-update add virtualbox-guest-additions boot
  service virtualbox-guest-additions start
fi

# autostart & start `docker` daemon
rc-update add docker boot

# add `docker-machine`
curl -L "https://github.com/docker/machine/releases/download/v0.8.2/docker-machine-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-machine
chmod +x /usr/local/bin/docker-machine

# add `docker-compose` (official curl method results in non-executable `docker-compose`)
pip install docker-composedocker run -d --name=dnsdock -e DNSDOCK_NAME=dnsdock -e DNSDOCK_IMAGE=devtools -p 172.17.0.1:53:53/udp -v /var/run/docker.sock:/var/run/docker.sock aacebedo/dnsdock:latest-amd64 --domain=vm

# create base data directory
mkdir /data

# if in VirtualBox, and assuming a shared folder named "data", automatically mount it,
#   this fails using fstab as vbox guest drivers aren't loaded in time
if [ "$IS_VIRTUALBOX" == "Y" ]; then
  echo -e "#!/bin/sh\nmount -t vboxsf data /data" > /etc/local.d/vboxsf.start
  chmod +x /etc/local.d/vboxsf.start
  rc-update add local default
fi

# start local DNS instance (`dnsdock`) in Docker for dev
docker run -d --name=dnsdock --restart=always -e DNSDOCK_NAME=dnsdock -e DNSDOCK_IMAGE=devtools -p 172.17.0.1:53:53/udp -v /var/run/docker.sock:/var/run/docker.sock aacebedo/dnsdock:latest-amd64 --domain=vm

# reboot to apply all changes
reboot

Man, you're a legend! I've killed myself googling "install docker-machine on alpine Linux" and then finally found this and saved my day!
I prefer my docker host to run Alpine Linux because it's lightweight and rock solid.