c3c94ca6bc
We added an lvm filter for use when using Cinder's LVM driver that would only scan devices that we have actually deployed Cinder Volume Groups on. This patch adds a simple output message to the setup routine so we can more easily inspect what was found and what has been set during devstack setup. Change-Id: Iba5012caffd45dfb5143b6df954eed277445a60e
104 lines
3.1 KiB
Bash
104 lines
3.1 KiB
Bash
#!/bin/bash
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#
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# lib/cinder_backends/lvm
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# Configure the LVM backend
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# Enable with:
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#
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# CINDER_ENABLED_BACKENDS+=,lvm:lvmname
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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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# CINDER_CONF
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# DATA_DIR
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# VOLUME_GROUP_NAME
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# clean_cinder_backend_lvm - called from clean_cinder()
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# configure_cinder_backend_lvm - called from configure_cinder()
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# init_cinder_backend_lvm - called from init_cinder()
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# configure_cinder_backend_conf_lvm - called from configure_cinder()
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# Save trace setting
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MY_XTRACE=$(set +o | grep xtrace)
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set +o xtrace
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# TODO: resurrect backing device...need to know how to set values
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#VOLUME_BACKING_DEVICE=${VOLUME_BACKING_DEVICE:-}
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# Entry Points
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# ------------
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# cleanup_cinder_backend_lvm - Delete volume group and remove backing file
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# cleanup_cinder_backend_lvm $be_name
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function cleanup_cinder_backend_lvm {
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local be_name=$1
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# Campsite rule: leave behind a volume group at least as clean as we found it
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clean_lvm_volume_group $VOLUME_GROUP_NAME-$be_name
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}
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# configure_cinder_backend_lvm - Set config files, create data dirs, etc
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# configure_cinder_backend_lvm $be_name
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function configure_cinder_backend_lvm {
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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.lvm.LVMVolumeDriver"
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iniset $CINDER_CONF $be_name volume_group $VOLUME_GROUP_NAME-$be_name
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iniset $CINDER_CONF $be_name iscsi_helper "tgtadm"
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if [[ "$CINDER_SECURE_DELETE" == "False" ]]; then
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iniset $CINDER_CONF $be_name volume_clear none
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fi
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}
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# init_cinder_backend_lvm - Initialize volume group
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# init_cinder_backend_lvm $be_name
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function init_cinder_backend_lvm {
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local be_name=$1
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# Start with a clean volume group
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init_lvm_volume_group $VOLUME_GROUP_NAME-$be_name $VOLUME_BACKING_FILE_SIZE
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}
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# configure_cinder_backend_conf_lvm - Sets device filter in /etc/cinder/lvm.conf
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# init_cinder_backend_lvm
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function configure_cinder_backend_conf_lvm {
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local filter_suffix='"r/.*/" ]'
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local filter_string="filter = [ "
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local conf_entries=$(grep volume_group /etc/cinder/cinder.conf | sed "s/ //g")
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local pv
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local vg
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local line
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for pv_info in $(sudo pvs --noheadings -o name,vg_name --separator ';'); do
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echo_summary "Evaluate PV info for Cinder lvm.conf: $pv_info"
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IFS=';' read pv vg <<< $pv_info
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for line in ${conf_entries}; do
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IFS='=' read label group <<< $line
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group=$(echo $group|sed "s/^ *//g")
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if [[ "$vg" == "$group" ]]; then
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new="\"a$pv/\", "
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filter_string=$filter_string$new
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fi
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done
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done
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filter_string=$filter_string$filter_suffix
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# FIXME(jdg): Possible odd case that the lvm.conf file has been modified
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# and doesn't have a filter entry to search/replace. For devstack don't
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# know that we care, but could consider adding a check and add
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sudo sed -i "s#^[ \t]*filter.*# $filter_string#g" /etc/cinder/lvm.conf
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echo "set LVM filter_strings: $filter_string"
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}
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# Restore xtrace
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$MY_XTRACE
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# mode: shell-script
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# End:
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