#!/bin/bash set -o xtrace set -o errexit function add_key { local counter=0 while :; do if [[ "${counter}" -gt 5 ]]; then echo "Failed to add Docker keyring" exit 1 fi # hkp://pool.sks-keyservers.net intermittenly doesnt have the correct # keyring. p80 is what the docker script pulls from and what we should # use for reliability too sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D && break || : sleep 5 done } function setup_disk { sudo swapoff -a sudo dd if=/dev/zero of=/swapfile bs=1M count=4096 sudo chmod 0600 /swapfile sudo mkswap /swapfile sudo /sbin/swapon /swapfile sudo dd if=/dev/zero of=/docker bs=1M count=10240 losetup -f /docker DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}') # Format Disks and setup Docker to use BTRFS sudo parted ${DEV} -s -- mklabel msdos sudo rm -rf /var/lib/docker sudo mkdir /var/lib/docker # We want to snapshot the entire docker directory so we have to first create a # subvolume and use that as the root for the docker directory. sudo mkfs.btrfs -f ${DEV} sudo mount ${DEV} /var/lib/docker sudo btrfs subvolume create /var/lib/docker/docker sudo umount /var/lib/docker sudo mount -o noatime,subvol=docker ${DEV} /var/lib/docker } # (SamYaple)TODO: Remove the path overriding export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" # Setup Docker repo and add signing key echo 'deb http://apt.dockerproject.org/repo ubuntu-trusty main' | sudo tee /etc/apt/sources.list.d/docker.list add_key sudo apt-get update sudo apt-get -y install --no-install-recommends docker-engine btrfs-tools sudo service docker stop setup_disk echo 'DOCKER_OPTS="-s btrfs"' | sudo tee /etc/default/docker sudo mount --make-shared /run sudo service docker start sudo docker info echo "Completed $0."