93 lines
3.2 KiB
Bash
93 lines
3.2 KiB
Bash
#!/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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# - ``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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# - 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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# Set CONFIGURE_GLUSTERFS_CINDER to true, to enable GlusterFS as a backend for Cinder.
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CONFIGURE_GLUSTERFS_CINDER=${CONFIGURE_GLUSTERFS_CINDER:-True}
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# Error out when devstack-plugin-glusterfs is enabled, but not selected as a backend for cinder.
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if [ "$CONFIGURE_GLUSTERFS_CINDER" = "False" ]; then
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echo "GlusterFS plugin enabled but not selected as a backend for Cinder."
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echo "Please set CONFIGURE_GLUSTERFS_CINDER to True in localrc."
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exit 1
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fi
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# When CONFIGURE_GLUSTERFS_CINDER is true, CINDER_ENABLED_BACKENDS should have
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# at least one backend of type 'glusterfs', error out otherwise.
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local is_gluster_backend_configured=False
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for be in ${CINDER_ENABLED_BACKENDS//,/ }; do
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if [ "${be%%:*}" = "glusterfs" ]; then
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is_gluster_backend_configured=True
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break
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fi
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done
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if [ "$CONFIGURE_GLUSTERFS_CINDER" = "True" ] && [ "$is_gluster_backend_configured" = "False" ]; then
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echo "CONFIGURE_GLUSTERFS_CINDER is set to True, to configure GlusterFS as a backend for Cinder."
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echo "But, glusterfs backend type not present in CINDER_ENABLED_BACKENDS."
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echo "Please enable at least one backend of type glusterfs in CINDER_ENABLED_BACKENDS."
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exit 1
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elif [ "$CONFIGURE_GLUSTERFS_CINDER" = "False" ] && [ "$is_gluster_backend_configured" = "True" ]; then
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echo "Configured Glusterfs as backend type in CINDER_ENABLED_BACKENDS. But CONFIGURE_GLUSTERFS_CINDER set to False."
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exit 1
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fi
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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 ${BASH_SOURCE[0]}))
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# Set ``GLUSTERFS_DATA_DIR`` to the location of GlusterFS drives.
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# Default is /var/lib/glusterfs.
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GLUSTERFS_DATA_DIR=${GLUSTERFS_DATA_DIR:-/var/lib/glusterfs}
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GLUSTERFS_DISK_IMAGE=${DATA_DIR}/cinder/glusterfs.img
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# DevStack will create a loop-back disk formatted as XFS to store the
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# GlusterFS data. Set ``GLUSTERFS_LOOPBACK_DISK_SIZE`` to the disk size in
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# GB.
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# Default is 4 gigabyte. But we can configure through localrc.
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GLUSTERFS_LOOPBACK_DISK_SIZE=${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=${CINDER_GLUSTERFS_SHARES:-"127.0.0.1:/cinder-vol"}
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# Adding GlusterFS repo to CentOS / RHEL 7 platform.
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GLUSTERFS_CENTOS_REPO=${GLUSTERFS_CENTOS_REPO:-"http://download.gluster.org/pub/gluster/glusterfs/LATEST/CentOS/glusterfs-epel.repo"}
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# 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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fi
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if [[ "$1" == "unstack" ]]; then
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cleanup_glusterfs
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stop_glusterfs
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fi
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if [[ "$1" == "clean" ]]; then
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cleanup_glusterfs
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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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