devstack-plugin-glusterfs: Refactoring plugin code
This patch modifies the plugin code into more reusable manner. Also adds a new file "devstack/gluster-functions.sh", which contains gluster specific functions. Change-Id: Ibe1231d5f2244ea7e9b7e7a5e1b138192e372206
This commit is contained in:
Bharat Kumar Kobagana
parent
fb470e7c6c
commit
d4bf5d44e3
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#!/bin/bash
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# devstack/gluster-functions.sh
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# Functions to control the installation and configuration of the **GlusterFS** storage
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# Installs 3.6.x version of glusterfs
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# Triggered from devstack/plugin.sh as part of devstack "pre-install"
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function install_glusterfs {
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if [[ ${DISTRO} =~ rhel7 ]] && [[ ! -f /etc/yum.repos.d/glusterfs-epel.repo ]]; then
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sudo wget $GLUSTERFS_CENTOS_REPO -O /etc/yum.repos.d/glusterfs-epel.repo
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elif is_ubuntu; then
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sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 3FE869A9
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echo "deb http://ppa.launchpad.net/gluster/glusterfs-3.6/ubuntu trusty main" | sudo tee /etc/apt/sources.list.d/glusterfs-3_6-trusty.list
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echo "deb-src http://ppa.launchpad.net/gluster/glusterfs-3.6/ubuntu trusty main" | sudo tee --append /etc/apt/sources.list.d/glusterfs-3_6-trusty.list
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NO_UPDATE_REPOS=False
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REPOS_UPDATED=False
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fi
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install_package glusterfs-server
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install_package xfsprogs
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if is_fedora; then
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stop_glusterfs
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_start_glusterfs
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fi
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_create_glusterfs_disk
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# Changing file permissions of glusterfs logs.
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# This avoids creation of zero sized glusterfs log files while running CI job (Bug: 1455951).
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sudo chmod 755 -R /var/log/glusterfs/
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}
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# Start gluster service
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function _start_glusterfs {
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if is_ubuntu; then
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sudo service glusterfs-server start
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else
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sudo service glusterd start
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fi
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}
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# Stop running gluster service
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# Triggered from devstack/plugin.sh as part of devstack "unstack"
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function stop_glusterfs {
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if is_ubuntu; then
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sudo service glusterfs-server stop
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else
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sudo service glusterd stop
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fi
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}
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# Clean Shares
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function _umount_shares {
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local shares=$1
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local share
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local mount_point
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for share in $(echo $shares | sed "s/;/ /"); do
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mount_point=$(grep $share /proc/mounts | awk '{print $2}')
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if [[ -n $mount_point ]]; then
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sudo umount $mount_point
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fi
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done
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}
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# Delete gluster volumes
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function _delete_gluster_shares {
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local shares=$1
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local share
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local gluster_volumes
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_umount_shares $shares
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for share in $(echo $shares | sed "s/;/ /"); do
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gluster_volumes+=,$(echo $share | cut -d/ -f2);
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done
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for vol_name in $(echo $gluster_volumes | sed "s/,/ /g"); do
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sudo gluster --mode=script volume stop $vol_name
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sudo gluster --mode=script volume delete $vol_name
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done
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}
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# Cleanup GlusterFS
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# Triggered from devstack/plugin.sh as part of devstack "clean"
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function cleanup_glusterfs {
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local glusterfs_volumes
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local vol_name
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# Cleaning up Cinder GlusterFS shares
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_delete_gluster_shares $CINDER_GLUSTERFS_SHARES
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if [[ -e ${GLUSTERFS_DISK_IMAGE} ]]; then
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sudo rm -f ${GLUSTERFS_DISK_IMAGE}
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fi
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if [[ "$OFFLINE" = "False" ]]; then
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uninstall_package glusterfs-server
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fi
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if egrep -q ${GLUSTERFS_DATA_DIR} /proc/mounts; then
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sudo umount ${GLUSTERFS_DATA_DIR}
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fi
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sudo rm -rf ${GLUSTERFS_DATA_DIR}
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}
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# Setting up glusterfs
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function _create_glusterfs_disk {
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# create a backing file disk
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local disk_image_directory=$(dirname "${GLUSTERFS_DISK_IMAGE}")
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mkdir -p $disk_image_directory
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create_disk ${GLUSTERFS_DISK_IMAGE} ${GLUSTERFS_DATA_DIR} ${GLUSTERFS_LOOPBACK_DISK_SIZE}
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}
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function _create_gluster_volume {
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local glusterfs_volume=$1
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sudo mkdir -p ${GLUSTERFS_DATA_DIR}/$glusterfs_volume
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sudo gluster --mode=script volume \
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create $glusterfs_volume $(hostname):${GLUSTERFS_DATA_DIR}/$glusterfs_volume
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sudo gluster --mode=script volume start $glusterfs_volume
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sudo gluster --mode=script volume set $glusterfs_volume server.allow-insecure on
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}
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function _create_gluster_volumes {
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local gluster_shares=$1
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local share
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local glusterfs_volumes
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for share in $(echo $gluster_shares | sed "s/;/ /"); do
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glusterfs_volumes+=,$(echo $share | cut -d/ -f2);
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done
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local vol_name
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for vol_name in $(echo $glusterfs_volumes | sed "s/,/ /g"); do
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_create_gluster_volume $vol_name
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done
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}
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# Configure GlusterFS as a backend for Cinder
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# Triggered from stack.sh
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function configure_cinder_backend_glusterfs {
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_create_gluster_volumes $CINDER_GLUSTERFS_SHARES
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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.glusterfs.GlusterfsDriver"
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iniset $CINDER_CONF $be_name glusterfs_shares_config "$CINDER_CONF_DIR/glusterfs-shares-$be_name.conf"
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if [[ -n "$CINDER_GLUSTERFS_SHARES" ]]; then
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CINDER_GLUSTERFS_SHARES=$(echo $CINDER_GLUSTERFS_SHARES | tr ";" "\n")
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echo "$CINDER_GLUSTERFS_SHARES" | tee "$CINDER_CONF_DIR/glusterfs-shares-$be_name.conf"
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fi
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}
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@ -1,163 +1,52 @@
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# 60-glusterfs.sh - DevStack extras script to install GlusterFS
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# Functions to control the configuration and operation of the **GlusterFS** storage service
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#!/bin/bash
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# devstack/plugin.sh
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# Triggers glusterfs specific functions to install and configure GlusterFS
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# Dependencies:
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#
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# - ``functions`` file
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# - ``GLUSTERFS_DATA_DIR`` or ``DATA_DIR`` must be defined
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# - ``DATA_DIR`` must be defined
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# ``stack.sh`` calls the entry points in this order:
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#
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# - install_glusterfs
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# - configure_glusterfs_cinder & configure_privileged_user
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# - start_glusterfs
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# - configure_cinder_backend_glusterfs
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# - stop_glusterfs
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# - cleanup_glusterfs
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# Defaults
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# --------
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# GLUSTERFS_PLUGIN_DIR contains the path to devstack-plugin-glusterfs/devstack directory
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GLUSTERFS_PLUGIN_DIR=$(readlink -f $(dirname ${BASH_SOURCE[0]}))
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# Set ``GLUSTERFS_DATA_DIR`` to the location of GlusterFS drives.
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# Default is the common DevStack data directory.
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# Default is /var/lib/glusterfs.
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GLUSTERFS_DATA_DIR=${GLUSTERFS_DATA_DIR:-/var/lib/glusterfs}
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GLUSTERFS_DISK_IMAGE=${DATA_DIR}/cinder/glusterfs.img
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# DevStack will create a loop-back disk formatted as XFS to store the
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# GlusterFS data. Set ``GLUSTERFS_LOOPBACK_DISK_SIZE`` to the disk size in
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# kilobytes.
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# GB.
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# Default is 4 gigabyte. But we can configure through localrc.
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GLUSTERFS_LOOPBACK_DISK_SIZE=${GLUSTERFS_LOOPBACK_DISK_SIZE:-4G}
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# Devstack will create GlusterFS shares to store Cinder volumes.
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# Those shares can be configured by seting CINDER_GLUSTERFS_SHARES.
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# By default CINDER_GLUSTERFS_SHARES="127.0.0.1:/vol1"
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CINDER_GLUSTERFS_SHARES=${CINDER_GLUSTERFS_SHARES:-"127.0.0.1:/vol1"}
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# Glusterfs volume provisioned type, allowed values are 'thin' or 'thick'.
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# Since we only support raw volumes for backup, using 'thick' as default value.
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GLUSTERFS_VOLUME_PROV_TYPE=${GLUSTERFS_VOLUME_PROV_TYPE:-"thick"}
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# Adding GlusterFS repo to CentOS / RHEL 7 platform.
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GLUSTERFS_CENTOS_REPO=${GLUSTERFS_CENTOS_REPO:-"http://download.gluster.org/pub/gluster/glusterfs/LATEST/CentOS/glusterfs-epel.repo"}
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# Functions
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# ------------
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# cleanup_glusterfs() - 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_glusterfs {
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for share in $(echo $CINDER_GLUSTERFS_SHARES | sed "s/;/ /"); do
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local mount_point=$(grep $share /proc/mounts | awk '{print $2}')
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if [[ -n $mount_point ]]; then
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sudo umount $mount_point
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fi
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done
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if [[ -e ${GLUSTERFS_DISK_IMAGE} ]]; then
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sudo rm -f ${GLUSTERFS_DISK_IMAGE}
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fi
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for share in $(echo $CINDER_GLUSTERFS_SHARES | sed "s/;/ /"); do
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GLUSTERFS_VOLUMES+=,$(echo $share | cut -d/ -f2);
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done
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for vol_name in $(echo $GLUSTERFS_VOLUMES | sed "s/,/ /g"); do
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sudo gluster --mode=script volume stop $vol_name
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sudo gluster --mode=script volume delete $vol_name
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done
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if [[ "$OFFLINE" = "False" ]]; then
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uninstall_package glusterfs-server
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fi
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if egrep -q ${GLUSTERFS_DATA_DIR} /proc/mounts; then
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sudo umount ${GLUSTERFS_DATA_DIR}
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fi
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sudo rm -rf ${GLUSTERFS_DATA_DIR}
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}
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# configure_glusterfs_cinder() - Create GlusterFS volumes
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function configure_glusterfs_cinder {
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for share in $(echo $CINDER_GLUSTERFS_SHARES | sed "s/;/ /"); do
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GLUSTERFS_VOLUMES+=,$(echo $share | cut -d/ -f2);
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done
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if is_fedora; then
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stop_glusterfs
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start_glusterfs
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fi
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# create a backing file disk
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create_disk ${GLUSTERFS_DISK_IMAGE} ${GLUSTERFS_DATA_DIR} ${GLUSTERFS_LOOPBACK_DISK_SIZE}
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for vol_name in $(echo $GLUSTERFS_VOLUMES | sed "s/,/ /g"); do
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sudo mkdir -p ${GLUSTERFS_DATA_DIR}/$vol_name
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sudo gluster --mode=script volume \
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create $vol_name $(hostname):${GLUSTERFS_DATA_DIR}/$vol_name
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sudo gluster --mode=script volume start $vol_name
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sudo gluster --mode=script volume set $vol_name server.allow-insecure on
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done
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# Changing file permissions of glusterfs logs.
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# This avoids creation of zero sized glusterfs log files while running CI job (Bug: 1455951).
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sudo chmod 755 -R /var/log/glusterfs/
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}
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# this modifies the cinder.conf file and create glusterfs_shares_config file.
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function configure_cinder_backend_glusterfs {
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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.glusterfs.GlusterfsDriver"
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iniset $CINDER_CONF $be_name glusterfs_shares_config "$CINDER_CONF_DIR/glusterfs-shares-$be_name.conf"
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#iniset $CINDER_CONF $be_name volume_prov_type $GLUSTERFS_VOLUME_PROV_TYPE
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if [[ -n "$CINDER_GLUSTERFS_SHARES" ]]; then
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CINDER_GLUSTERFS_SHARES=$(echo $CINDER_GLUSTERFS_SHARES | tr ";" "\n")
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echo "$CINDER_GLUSTERFS_SHARES" | tee "$CINDER_CONF_DIR/glusterfs-shares-$be_name.conf"
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fi
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}
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# install_glusterfs() - Collect source and prepare
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function install_glusterfs {
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if [[ ${DISTRO} =~ rhel7 ]] && [[ ! -f /etc/yum.repos.d/glusterfs-epel.repo ]]; then
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sudo wget $GLUSTERFS_CENTOS_REPO -O /etc/yum.repos.d/glusterfs-epel.repo
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elif is_ubuntu; then
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sudo wget -O - http://download.gluster.org/pub/gluster/glusterfs/3.6/3.6.2/Debian/wheezy/pubkey.gpg | sudo apt-key add -
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sudo echo deb http://download.gluster.org/pub/gluster/glusterfs/3.6/3.6.2/Debian/wheezy/apt wheezy main | sudo tee /etc/apt/sources.list.d/gluster.list
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NO_UPDATE_REPOS=False
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REPOS_UPDATED=False
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fi
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install_package glusterfs-server
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install_package xfsprogs
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}
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# start_glusterfs() - Start running processes
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function start_glusterfs {
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if is_ubuntu; then
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sudo service glusterfs-server start
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else
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sudo service glusterd start
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fi
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}
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# stop_glusterfs() - Stop running processes
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function stop_glusterfs {
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if is_ubuntu; then
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sudo service glusterfs-server stop
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else
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sudo service glusterd stop
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fi
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}
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# Initializing gluster specific functions
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source $GLUSTERFS_PLUGIN_DIR/gluster-functions.sh
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if [[ "$1" == "stack" && "$2" == "pre-install" ]]; then
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echo_summary "Installing GlusterFS"
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install_glusterfs
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elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
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if is_service_enabled cinder; then
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echo_summary "Configuring Cinder for GlusterFS"
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configure_glusterfs_cinder
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fi
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fi
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if [[ "$1" == "unstack" ]]; then
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