magnum/magnum/drivers/common/templates/fragments/configure_docker_storage_dr...

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# This file contains docker storage drivers configuration for fedora
# atomic hosts. Currently, devicemapper and overlay are supported.
# Remove any existing docker-storage configuration. In case of an
# existing configuration, docker-storage-setup will fail.
clear_docker_storage_congiguration () {
if [ -f /etc/sysconfig/docker-storage ]; then
sed -i "/^DOCKER_STORAGE_OPTIONS=/ s/=.*/=/" /etc/sysconfig/docker-storage
fi
}
# Configure docker storage with xfs as backing filesystem.
configure_overlay () {
clear_docker_storage_congiguration
rm -rf /var/lib/docker/*
mkfs.xfs -f ${device_path}
echo "${device_path} /var/lib/docker xfs defaults 0 0" >> /etc/fstab
mount -a
echo "STORAGE_DRIVER=overlay" > /etc/sysconfig/docker-storage-setup
# SELinux must be enabled and in enforcing mode on the physical
# machine, but must be disabled in the container when performing
# container separation
sed -i "/^OPTIONS=/ s/--selinux-enabled/--selinux-enabled=false/" /etc/sysconfig/docker
}
# Configure docker storage with devicemapper using direct LVM
configure_devicemapper () {
clear_docker_storage_congiguration
pvcreate -f ${device_path}
vgcreate docker ${device_path}
echo "VG=docker" > /etc/sysconfig/docker-storage-setup
}