kolla/tools/setup_Debian.sh
Sam Yaple a81d48e703 Switch Ubuntu to overlay2 docker driver
With 4.4 kernel we can use the improved overlay2 driver instead of
btrfs for significantly better performance when creating layers.

Change-Id: I3b0dfd6db5298dfb34ec160eed910ca76feeb423
2016-12-19 02:54:38 +00:00

84 lines
2.5 KiB
Bash
Executable File

#!/bin/bash
set -o xtrace
set -o errexit
function add_key {
local counter=0
while :; do
if [[ "${counter}" -gt 5 ]]; then
echo "Failed to add Docker keyring"
exit 1
fi
# hkp://pool.sks-keyservers.net intermittenly doesnt have the correct
# keyring. p80 is what the docker script pulls from and what we should
# use for reliability too
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D && break || :
sleep 5
done
}
function setup_disk {
if [ ! -f /swapfile ]; then
sudo swapoff -a
sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
sudo chmod 0600 /swapfile
sudo mkswap /swapfile
sudo /sbin/swapon /swapfile
fi
if [ ! -f /docker ]; then
sudo dd if=/dev/zero of=/docker bs=1M count=10240
sudo losetup -f /docker
DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
fi
# 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 ${DEV} /var/lib/docker
}
# (SamYaple)TODO: Remove the path overriding
export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
source /etc/lsb-release
# Setup Docker repo and add signing key
echo "deb http://apt.dockerproject.org/repo ubuntu-${DISTRIB_CODENAME} 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
sudo service docker stop
if [[ ${DISTRIB_CODENAME} == "trusty" ]]; then
sudo apt-get -y install --no-install-recommends btrfs-tools
setup_disk
echo 'DOCKER_OPTS="-s btrfs"' | sudo tee /etc/default/docker
sudo mount --make-shared /run
sudo service docker start
else
sudo mkdir /etc/systemd/system/docker.service.d
sudo tee /etc/systemd/system/docker.service.d/kolla.conf << EOF
[Service]
ExecStart=
ExecStart=/usr/bin/dockerd --storage-driver overlay2 --insecure-registry=127.0.0.1:4000
MountFlags=shared
EOF
sudo systemctl daemon-reload
sudo systemctl start docker
fi
sudo docker info
echo "Completed $0."