131 lines
3.8 KiB
Bash
131 lines
3.8 KiB
Bash
# DevStack extras script to install Sheepdog
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# Dependencies:
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#
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# - ``functions`` file
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# - ``cinder`` configurations
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# - ``SHEEPDOG_DATA_DIR`` must be defined
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# ``stack.sh`` calls the entry points in this order (via ``extras.d/60-sheepdog.sh``):
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#
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# - install_sheepdog
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# - configure_sheepdog
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# - init_sheepdog
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# - start_sheepdog
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# - stop_sheepdog
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# - cleanup_sheepdog
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# Defaults
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# --------
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# Set ``SHEEPDOG_DATA_DIR`` to the location of Sheepdog drives and objects.
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# Default is the common DevStack data directory.
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SHEEPDOG_DATA_DIR=${SHEEPDOG_DATA_DIR:-/var/lib/sheepdog}
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SHEEPDOG_DISK_IMAGE=${SHEEPDOG_DATA_DIR}/sheepdog.img
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# DevStack will create a loop-back disk formatted as XFS to store the
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# Sheepdog data. Set ``SHEEPDOG_LOOPBACK_DISK_SIZE`` to the disk size in
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# kilobytes.
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# Default is 8 gigabyte.
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SHEEPDOG_LOOPBACK_DISK_SIZE_DEFAULT=8G
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SHEEPDOG_LOOPBACK_DISK_SIZE=${SHEEPDOG_LOOPBACK_DISK_SIZE:-$SHEEPDOG_LOOPBACK_DISK_SIZE_DEFAULT}
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# Functions
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# ------------
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# check_os_support_sheepdog() - Check if the operating system provides a decent version of Sheepdog
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function check_os_support_sheepdog {
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if [[ ! ${DISTRO} =~ (trusty) ]]; then
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echo "WARNING: your distro $DISTRO does not provide (at least) the Firefly release. Please use Ubuntu Trusty"
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if [[ "$FORCE_SHEEPDOG_INSTALL" != "yes" ]]; then
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die $LINENO "If you wish to install Sheepdog on this distribution anyway run with FORCE_SHEEPDOG_INSTALL=yes"
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fi
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NO_UPDATE_REPOS=False
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fi
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}
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# stop_sheepdog() - Stop running processes (non-screen)
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function stop_sheepdog {
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sudo pkill -f sheep
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sleep 3
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if egrep -q ${SHEEPDOG_DATA_DIR} /proc/mounts; then
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sudo umount ${SHEEPDOG_DATA_DIR}
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fi
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}
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# cleanup_sheepdog() - Remove residual data files, anything left over from previous
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# runs that a clean run would need to clean up
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function cleanup_sheepdog {
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stop_sheepdog
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if [[ -e ${SHEEPDOG_DISK_IMAGE} ]]; then
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sudo rm -f ${SHEEPDOG_DISK_IMAGE}
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fi
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uninstall_package sheepdog > /dev/null 2>&1
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}
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# configure_sheepdog() - Set config files, create data dirs, etc
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function configure_sheepdog {
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# create a backing file disk
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create_disk ${SHEEPDOG_DISK_IMAGE} ${SHEEPDOG_DATA_DIR} ${SHEEPDOG_LOOPBACK_DISK_SIZE}
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}
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# install_sheepdog() - Collect source and prepare
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function install_sheepdog {
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if [[ ${os_CODENAME} =~ trusty ]]; then
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NO_UPDATE_REPOS=False
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install_package sheepdog
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install_package xfsprogs
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else
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exit_distro_not_supported "Sheepdog since your distro doesn't provide (at least) the Firefly release. Please use Ubuntu Trusty."
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fi
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}
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# start_sheepdog() - Start running processes, including screen
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function start_sheepdog {
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# clean up from previous (possibly aborted) runs
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# make sure to kill all sheepdog processes first
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sudo pkill -f sheep || true
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sleep 3
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sudo sheep -l 7 -c local ${SHEEPDOG_DATA_DIR}
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sleep 3
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sudo dog cluster format -c 1
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}
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# configure_cinder_backend_sheepdog - Configure Cinder for Sheepdog backends
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function configure_cinder_backend_sheepdog {
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local be_name=$1
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iniset $CINDER_CONF $be_name volume_backend_name $be_name
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iniset $CINDER_CONF $be_name volume_driver "cinder.volume.drivers.sheepdog.SheepdogDriver"
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}
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if [[ "$1" == "source" ]]; then
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# Initial source
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source $TOP_DIR/lib/sheepdog
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elif [[ "$1" == "stack" && "$2" == "install" ]]; then
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echo_summary "Installing Sheepdog"
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check_os_support_sheepdog
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install_sheepdog
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elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
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echo_summary "Configuring Sheepdog"
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configure_sheepdog
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# We need to have Sheepdog started before the main OpenStack components.
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start_sheepdog
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fi
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if [[ "$1" == "unstack" ]]; then
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stop_sheepdog
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fi
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if [[ "$1" == "clean" ]]; then
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cleanup_sheepdog
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fi
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## Local variables:
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## mode: shell-script
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## End:
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