Merge "Implement Ceph backend for Glance / Cinder / Nova"
This commit is contained in:
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Gerrit Code Review
commit
73e8deb09d
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# ceph.sh - DevStack extras script to install Ceph
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if is_service_enabled ceph; then
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if [[ "$1" == "source" ]]; then
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# Initial source
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source $TOP_DIR/lib/ceph
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elif [[ "$1" == "stack" && "$2" == "pre-install" ]]; then
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echo_summary "Installing Ceph"
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install_ceph
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echo_summary "Configuring Ceph"
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configure_ceph
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# NOTE (leseb): Do everything here because we need to have Ceph started before the main
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# OpenStack components. Ceph OSD must start here otherwise we can't upload any images.
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echo_summary "Initializing Ceph"
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init_ceph
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start_ceph
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elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
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if is_service_enabled glance; then
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echo_summary "Configuring Glance for Ceph"
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configure_ceph_glance
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fi
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if is_service_enabled nova; then
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echo_summary "Configuring Nova for Ceph"
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configure_ceph_nova
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fi
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if is_service_enabled cinder; then
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echo_summary "Configuring Cinder for Ceph"
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configure_ceph_cinder
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# NOTE (leseb): the part below is a requirement from Cinder in order to attach volumes
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# so we should run the following within the if statement.
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echo_summary "Configuring libvirt secret"
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import_libvirt_secret_ceph
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fi
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fi
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if [[ "$1" == "unstack" ]]; then
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stop_ceph
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cleanup_ceph
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fi
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if [[ "$1" == "clean" ]]; then
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cleanup_ceph
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fi
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fi
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@ -0,0 +1,2 @@
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ceph # NOPRIME
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xfsprogs
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@ -0,0 +1,3 @@
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ceph # NOPRIME
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xfsprogs
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lsb
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@ -0,0 +1,3 @@
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ceph # NOPRIME
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xfsprogs
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redhat-lsb-core
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34
functions
34
functions
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@ -546,6 +546,40 @@ if ! function_exists echo_nolog; then
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}
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fi
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# create_disk - Create backing disk
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function create_disk {
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local node_number
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local disk_image=${1}
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local storage_data_dir=${2}
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local loopback_disk_size=${3}
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# Create a loopback disk and format it to XFS.
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if [[ -e ${disk_image} ]]; then
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if egrep -q ${storage_data_dir} /proc/mounts; then
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sudo umount ${storage_data_dir}/drives/sdb1
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sudo rm -f ${disk_image}
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fi
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fi
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sudo mkdir -p ${storage_data_dir}/drives/images
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sudo truncate -s ${loopback_disk_size} ${disk_image}
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# Make a fresh XFS filesystem. Use bigger inodes so xattr can fit in
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# a single inode. Keeping the default inode size (256) will result in multiple
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# inodes being used to store xattr. Retrieving the xattr will be slower
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# since we have to read multiple inodes. This statement is true for both
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# Swift and Ceph.
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sudo mkfs.xfs -f -i size=1024 ${disk_image}
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# Mount the disk with mount options to make it as efficient as possible
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if ! egrep -q ${storage_data_dir} /proc/mounts; then
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sudo mount -t xfs -o loop,noatime,nodiratime,nobarrier,logbufs=8 \
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${disk_image} ${storage_data_dir}
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fi
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}
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# Restore xtrace
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$XTRACE
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# lib/ceph
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# Functions to control the configuration and operation of the **Ceph** storage service
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# Dependencies:
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#
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# - ``functions`` file
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# - ``CEPH_DATA_DIR`` or ``DATA_DIR`` must be defined
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# ``stack.sh`` calls the entry points in this order (via ``extras.d/60-ceph.sh``):
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#
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# - install_ceph
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# - configure_ceph
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# - init_ceph
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# - start_ceph
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# - stop_ceph
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# - cleanup_ceph
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# Save trace setting
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XTRACE=$(set +o | grep xtrace)
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set +o xtrace
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# Defaults
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# --------
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# Set ``CEPH_DATA_DIR`` to the location of Ceph drives and objects.
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# Default is the common DevStack data directory.
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CEPH_DATA_DIR=${CEPH_DATA_DIR:-/var/lib/ceph}
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CEPH_DISK_IMAGE=${CEPH_DATA_DIR}/drives/images/ceph.img
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# Set ``CEPH_CONF_DIR`` to the location of the configuration files.
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# Default is ``/etc/ceph``.
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CEPH_CONF_DIR=${CEPH_CONF_DIR:-/etc/ceph}
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# DevStack will create a loop-back disk formatted as XFS to store the
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# Ceph data. Set ``CEPH_LOOPBACK_DISK_SIZE`` to the disk size in
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# kilobytes.
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# Default is 1 gigabyte.
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CEPH_LOOPBACK_DISK_SIZE_DEFAULT=2G
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CEPH_LOOPBACK_DISK_SIZE=${CEPH_LOOPBACK_DISK_SIZE:-$CEPH_LOOPBACK_DISK_SIZE_DEFAULT}
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# Common
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CEPH_FSID=$(uuidgen)
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CEPH_CONF_FILE=${CEPH_CONF_DIR}/ceph.conf
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# Glance
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GLANCE_CEPH_USER=${GLANCE_CEPH_USER:-glance}
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GLANCE_CEPH_POOL=${GLANCE_CEPH_POOL:-images}
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GLANCE_CEPH_POOL_PG=${GLANCE_CEPH_POOL_PG:-8}
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GLANCE_CEPH_POOL_PGP=${GLANCE_CEPH_POOL_PGP:-8}
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# Nova
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NOVA_CEPH_POOL=${NOVA_CEPH_POOL:-vms}
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NOVA_CEPH_POOL_PG=${NOVA_CEPH_POOL_PG:-8}
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NOVA_CEPH_POOL_PGP=${NOVA_CEPH_POOL_PGP:-8}
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# Cinder
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CINDER_CEPH_POOL=${CINDER_CEPH_POOL:-volumes}
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CINDER_CEPH_POOL_PG=${CINDER_CEPH_POOL_PG:-8}
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CINDER_CEPH_POOL_PGP=${CINDER_CEPH_POOL_PGP:-8}
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CINDER_CEPH_USER=${CINDER_CEPH_USER:-cinder}
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CINDER_CEPH_UUID=${CINDER_CEPH_UUID:-$(uuidgen)}
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# Set ``CEPH_REPLICAS`` to configure how many replicas are to be
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# configured for your Ceph cluster. By default we are configuring
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# only one replica since this is way less CPU and memory intensive. If
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# you are planning to test Ceph replication feel free to increase this value
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CEPH_REPLICAS=${CEPH_REPLICAS:-1}
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CEPH_REPLICAS_SEQ=$(seq ${CEPH_REPLICAS})
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# Functions
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# ------------
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# import_libvirt_secret_ceph() - Imports Cinder user key into libvirt
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# so it can connect to the Ceph cluster while attaching a Cinder block device
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function import_libvirt_secret_ceph {
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cat > secret.xml <<EOF
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<secret ephemeral='no' private='no'>
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<uuid>${CINDER_CEPH_UUID}</uuid>
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<usage type='ceph'>
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<name>client.${CINDER_CEPH_USER} secret</name>
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</usage>
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</secret>
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EOF
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sudo virsh secret-define --file secret.xml
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sudo virsh secret-set-value --secret ${CINDER_CEPH_UUID} --base64 $(sudo ceph -c ${CEPH_CONF_FILE} auth get-key client.${CINDER_CEPH_USER})
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sudo rm -f secret.xml
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}
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# cleanup_ceph() - 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_ceph {
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sudo pkill -f ceph-mon
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sudo pkill -f ceph-osd
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sudo rm -rf ${CEPH_DATA_DIR}/*/*
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sudo rm -rf ${CEPH_CONF_DIR}/*
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if egrep -q ${CEPH_DATA_DIR} /proc/mounts; then
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sudo umount ${CEPH_DATA_DIR}
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fi
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if [[ -e ${CEPH_DISK_IMAGE} ]]; then
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sudo rm -f ${CEPH_DISK_IMAGE}
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fi
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uninstall_package ceph ceph-common python-ceph libcephfs1 > /dev/null 2>&1
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VIRSH_UUID=$(sudo virsh secret-list | awk '/^ ?[0-9a-z]/ { print $1 }')
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sudo virsh secret-undefine ${VIRSH_UUID} >/dev/null 2>&1
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}
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# configure_ceph() - Set config files, create data dirs, etc
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function configure_ceph {
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local count=0
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# create a backing file disk
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create_disk ${CEPH_DISK_IMAGE} ${CEPH_DATA_DIR} ${CEPH_LOOPBACK_DISK_SIZE}
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# populate ceph directory
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sudo mkdir -p ${CEPH_DATA_DIR}/{bootstrap-mds,bootstrap-osd,mds,mon,osd,tmp}
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# create ceph monitor initial key and directory
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sudo ceph-authtool /var/lib/ceph/tmp/keyring.mon.$(hostname) --create-keyring --name=mon. --add-key=$(ceph-authtool --gen-print-key) --cap mon 'allow *'
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sudo mkdir /var/lib/ceph/mon/ceph-$(hostname)
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# create a default ceph configuration file
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sudo tee -a ${CEPH_CONF_FILE} > /dev/null <<EOF
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[global]
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fsid = ${CEPH_FSID}
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mon_initial_members = $(hostname)
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mon_host = ${SERVICE_HOST}
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auth_cluster_required = cephx
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auth_service_required = cephx
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auth_client_required = cephx
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filestore_xattr_use_omap = true
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osd crush chooseleaf type = 0
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osd journal size = 100
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EOF
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# bootstrap the ceph monitor
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sudo ceph-mon -c ${CEPH_CONF_FILE} --mkfs -i $(hostname) --keyring /var/lib/ceph/tmp/keyring.mon.$(hostname)
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if is_ubuntu; then
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sudo touch /var/lib/ceph/mon/ceph-$(hostname)/upstart
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sudo initctl emit ceph-mon id=$(hostname)
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else
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sudo touch /var/lib/ceph/mon/ceph-$(hostname)/sysvinit
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sudo service ceph start mon.$(hostname)
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fi
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# wait for the admin key to come up otherwise we will not be able to do the actions below
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until [ -f ${CEPH_CONF_DIR}/ceph.client.admin.keyring ]; do
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echo_summary "Waiting for the Ceph admin key to be ready..."
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count=$(($count + 1))
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if [ $count -eq 3 ]; then
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die $LINENO "Maximum of 3 retries reached"
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fi
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sleep 5
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done
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# change pool replica size according to the CEPH_REPLICAS set by the user
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set data size ${CEPH_REPLICAS}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd size ${CEPH_REPLICAS}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata size ${CEPH_REPLICAS}
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# create a simple rule to take OSDs instead of host with CRUSH
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# then apply this rules to the default pool
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo ceph -c ${CEPH_CONF_FILE} osd crush rule create-simple devstack default osd
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RULE_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd crush rule dump devstack | awk '/rule_id/ {print $3}' | cut -d ',' -f1)
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd crush_ruleset ${RULE_ID}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set data crush_ruleset ${RULE_ID}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata crush_ruleset ${RULE_ID}
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fi
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# create the OSD(s)
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for rep in ${CEPH_REPLICAS_SEQ}; do
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OSD_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd create)
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sudo mkdir -p ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}
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sudo ceph-osd -c ${CEPH_CONF_FILE} -i ${OSD_ID} --mkfs
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sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create osd.${OSD_ID} mon 'allow profile osd ' osd 'allow *' | sudo tee ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/keyring
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# ceph's init script is parsing ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/ and looking for a file
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# 'upstart' or 'sysinitv', thanks to these 'touches' we are able to control OSDs daemons
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# from the init script.
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if is_ubuntu; then
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sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/upstart
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else
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sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/sysvinit
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fi
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done
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}
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# configure_ceph_glance() - Glance config needs to come after Glance is set up
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function configure_ceph_glance {
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# configure Glance service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${GLANCE_CEPH_POOL} ${GLANCE_CEPH_POOL_PG} ${GLANCE_CEPH_POOL_PGP}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} size ${CEPH_REPLICAS}
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} crush_ruleset ${RULE_ID}
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fi
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sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${GLANCE_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${GLANCE_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring
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||||
sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring
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||||
iniset $GLANCE_API_CONF DEFAULT default_store rbd
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iniset $GLANCE_API_CONF DEFAULT rbd_store_ceph_conf $CEPH_CONF_FILE
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iniset $GLANCE_API_CONF DEFAULT rbd_store_user $GLANCE_CEPH_USER
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||||
iniset $GLANCE_API_CONF DEFAULT rbd_store_pool $GLANCE_CEPH_POOL
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||||
iniset $GLANCE_API_CONF DEFAULT show_image_direct_url True
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}
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||||
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||||
# configure_ceph_nova() - Nova config needs to come after Nova is set up
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||||
function configure_ceph_nova {
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# configure Nova service options, ceph pool, ceph user and ceph key
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||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${NOVA_CEPH_POOL} ${NOVA_CEPH_POOL_PG} ${NOVA_CEPH_POOL_PGP}
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||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${NOVA_CEPH_POOL} size ${CEPH_REPLICAS}
|
||||
if [[ $CEPH_REPLICAS -ne 1 ]]; then
|
||||
sudo -c ${CEPH_CONF_FILE} ceph osd pool set ${NOVA_CEPH_POOL} crush_ruleset ${RULE_ID}
|
||||
fi
|
||||
iniset $NOVA_CONF libvirt rbd_user ${CINDER_CEPH_USER}
|
||||
iniset $NOVA_CONF libvirt rbd_secret_uuid ${CINDER_CEPH_UUID}
|
||||
iniset $NOVA_CONF libvirt inject_key false
|
||||
iniset $NOVA_CONF libvirt inject_partition -2
|
||||
iniset $NOVA_CONF libvirt disk_cachemodes "network=writeback"
|
||||
iniset $NOVA_CONF libvirt images_type rbd
|
||||
iniset $NOVA_CONF libvirt images_rbd_pool ${NOVA_CEPH_POOL}
|
||||
iniset $NOVA_CONF libvirt images_rbd_ceph_conf ${CEPH_CONF_FILE}
|
||||
}
|
||||
|
||||
# configure_ceph_cinder() - Cinder config needs to come after Cinder is set up
|
||||
function configure_ceph_cinder {
|
||||
# Configure Cinder service options, ceph pool, ceph user and ceph key
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_CEPH_POOL} ${CINDER_CEPH_POOL_PG} ${CINDER_CEPH_POOL_PGP}
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} size ${CEPH_REPLICAS}
|
||||
if [[ $CEPH_REPLICAS -ne 1 ]]; then
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} crush_ruleset ${RULE_ID}
|
||||
|
||||
fi
|
||||
sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_CEPH_POOL}, allow rwx pool=${NOVA_CEPH_POOL},allow rx pool=${GLANCE_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
|
||||
sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
|
||||
}
|
||||
|
||||
# init_ceph() - Initialize databases, etc.
|
||||
function init_ceph {
|
||||
# clean up from previous (possibly aborted) runs
|
||||
# make sure to kill all ceph processes first
|
||||
sudo pkill -f ceph-mon || true
|
||||
sudo pkill -f ceph-osd || true
|
||||
}
|
||||
|
||||
# install_ceph() - Collect source and prepare
|
||||
function install_ceph {
|
||||
# NOTE(dtroyer): At some point it'll be easier to test for unsupported distros,
|
||||
# leveraging the list in stack.sh
|
||||
if [[ ${os_CODENAME} =~ trusty ]] || [[ ${os_CODENAME} =~ Schrödinger’sCat ]] || [[ ${os_CODENAME} =~ Heisenbug ]]; then
|
||||
NO_UPDATE_REPOS=False
|
||||
install_package ceph
|
||||
else
|
||||
exit_distro_not_supported "Ceph since your distro doesn't provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 19/20"
|
||||
fi
|
||||
}
|
||||
|
||||
# start_ceph() - Start running processes, including screen
|
||||
function start_ceph {
|
||||
if is_ubuntu; then
|
||||
sudo initctl emit ceph-mon id=$(hostname)
|
||||
for id in $(sudo ceph -c ${CEPH_CONF_FILE} osd ls); do
|
||||
sudo start ceph-osd id=${id}
|
||||
done
|
||||
else
|
||||
sudo service ceph start
|
||||
fi
|
||||
}
|
||||
|
||||
# stop_ceph() - Stop running processes (non-screen)
|
||||
function stop_ceph {
|
||||
if is_ubuntu; then
|
||||
sudo service ceph-mon-all stop > /dev/null 2>&1
|
||||
sudo service ceph-osd-all stop > /dev/null 2>&1
|
||||
else
|
||||
sudo service ceph stop > /dev/null 2>&1
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
# Restore xtrace
|
||||
$XTRACE
|
||||
|
||||
## Local variables:
|
||||
## mode: shell-script
|
||||
## End:
|
||||
|
|
@ -0,0 +1,79 @@
|
|||
# lib/cinder_backends/ceph
|
||||
# Configure the ceph backend
|
||||
|
||||
# Enable with:
|
||||
#
|
||||
# CINDER_ENABLED_BACKENDS+=,ceph:ceph
|
||||
#
|
||||
# Optional parameters:
|
||||
# CINDER_BAK_CEPH_POOL=<pool-name>
|
||||
# CINDER_BAK_CEPH_USER=<user>
|
||||
# CINDER_BAK_CEPH_POOL_PG=<pg-num>
|
||||
# CINDER_BAK_CEPH_POOL_PGP=<pgp-num>
|
||||
|
||||
# Dependencies:
|
||||
#
|
||||
# - ``functions`` file
|
||||
# - ``cinder`` configurations
|
||||
|
||||
# configure_ceph_backend_lvm - called from configure_cinder()
|
||||
|
||||
|
||||
# Save trace setting
|
||||
MY_XTRACE=$(set +o | grep xtrace)
|
||||
set +o xtrace
|
||||
|
||||
|
||||
# Defaults
|
||||
# --------
|
||||
|
||||
CINDER_BAK_CEPH_POOL=${CINDER_BAK_CEPH_POOL:-backups}
|
||||
CINDER_BAK_CEPH_POOL_PG=${CINDER_BAK_CEPH_POOL_PG:-8}
|
||||
CINDER_BAK_CEPH_POOL_PGP=${CINDER_BAK_CEPH_POOL_PGP:-8}
|
||||
CINDER_BAK_CEPH_USER=${CINDER_BAK_CEPH_USER:-cinder-bak}
|
||||
|
||||
|
||||
# Entry Points
|
||||
# ------------
|
||||
|
||||
# configure_cinder_backend_ceph - Set config files, create data dirs, etc
|
||||
# configure_cinder_backend_ceph $name
|
||||
function configure_cinder_backend_ceph {
|
||||
local be_name=$1
|
||||
|
||||
iniset $CINDER_CONF $be_name volume_backend_name $be_name
|
||||
iniset $CINDER_CONF $be_name volume_driver "cinder.volume.drivers.rbd.RBDDriver"
|
||||
iniset $CINDER_CONF $be_name rbd_ceph_conf "$CEPH_CONF"
|
||||
iniset $CINDER_CONF $be_name rbd_pool "$CINDER_CEPH_POOL"
|
||||
iniset $CINDER_CONF $be_name rbd_user "$CINDER_CEPH_USER"
|
||||
iniset $CINDER_CONF $be_name rbd_uuid "$CINDER_CEPH_UUID"
|
||||
iniset $CINDER_CONF $be_name rbd_flatten_volume_from_snapshot False
|
||||
iniset $CINDER_CONF $be_name rbd_max_clone_depth 5
|
||||
iniset $CINDER_CONF DEFAULT glance_api_version 2
|
||||
|
||||
if is_service_enabled c-bak; then
|
||||
# Configure Cinder backup service options, ceph pool, ceph user and ceph key
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_BAK_CEPH_POOL} ${CINDER_BAK_CEPH_POOL_PG} ${CINDER_BAK_CEPH_POOL_PGP}
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} size ${CEPH_REPLICAS}
|
||||
if [[ $CEPH_REPLICAS -ne 1 ]]; then
|
||||
sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} crush_ruleset ${RULE_ID}
|
||||
fi
|
||||
sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_BAK_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_BAK_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
|
||||
sudo chown $(whoami):$(whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
|
||||
|
||||
iniset $CINDER_CONF DEFAULT backup_driver "cinder.backup.drivers.ceph"
|
||||
iniset $CINDER_CONF DEFAULT backup_ceph_conf "$CEPH_CONF"
|
||||
iniset $CINDER_CONF DEFAULT backup_ceph_pool "$CINDER_BAK_CEPH_POOL"
|
||||
iniset $CINDER_CONF DEFAULT backup_ceph_user "$CINDER_BAK_CEPH_USER"
|
||||
iniset $CINDER_CONF DEFAULT backup_ceph_stripe_unit 0
|
||||
iniset $CINDER_CONF DEFAULT backup_ceph_stripe_count 0
|
||||
iniset $CINDER_CONF DEFAULT restore_discard_excess_bytes True
|
||||
fi
|
||||
}
|
||||
|
||||
# Restore xtrace
|
||||
$MY_XTRACE
|
||||
|
||||
# Local variables:
|
||||
# mode: shell-script
|
||||
# End:
|
||||
Loading…
Reference in New Issue