openstack/devstack
Code Issues Proposed changes

Merge "Auto add a cinder lvm.conf file"

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Jenkins 2015-01-27 21:52:47 +00:00 committed by Gerrit Code Review
commit c2999d190a
2 changed files with 47 additions and 0 deletions
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17
lib/cinder
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@ -395,15 +395,32 @@ function init_cinder {
if is_service_enabled c-vol && [[ -n "$CINDER_ENABLED_BACKENDS" ]]; then
local be be_name be_type
local has_lvm=0
for be in ${CINDER_ENABLED_BACKENDS//,/ }; do
be_type=${be%%:*}
be_name=${be##*:}
if [[ $be_type == 'lvm' ]]; then
has_lvm=1
fi
if type init_cinder_backend_${be_type} >/dev/null 2>&1; then
init_cinder_backend_${be_type} ${be_name}
fi
done
fi
# Keep it simple, set a marker if there's an LVM backend
# use the created VG's to setup lvm filters
if [[ $has_lvm == 1 ]]; then
# Order matters here, not only obviously to make
# sure the VG's are created, but also some distros
# do some customizations to lvm.conf on init, we
# want to make sure we copy those over
sudo cp /etc/lvm/lvm.conf /etc/cinder/lvm.conf
configure_cinder_backend_conf_lvm
fi
mkdir -p $CINDER_STATE_PATH/volumes
create_cinder_cache_dir
}

30
lib/cinder_backends/lvm
View File

@ -19,6 +19,7 @@
# clean_cinder_backend_lvm - called from clean_cinder()
# configure_cinder_backend_lvm - called from configure_cinder()
# init_cinder_backend_lvm - called from init_cinder()
# configure_cinder_backend_conf_lvm - called from configure_cinder()
# Save trace setting
@ -64,6 +65,35 @@ function init_cinder_backend_lvm {
init_lvm_volume_group $VOLUME_GROUP_NAME-$be_name $VOLUME_BACKING_FILE_SIZE
}
# configure_cinder_backend_conf_lvm - Sets device filter in /etc/cinder/lvm.conf
# init_cinder_backend_lvm
function configure_cinder_backend_conf_lvm {
local filter_suffix='"r/.*/" ]'
local filter_string="filter = [ "
local conf_entries=$(grep volume_group /etc/cinder/cinder.conf | sed "s/ //g")
local pv
local vg
local line
for pv_info in $(sudo pvs --noheadings -o name,vg_name --separator ';'); do
IFS=';' read pv vg <<< $pv_info
for line in ${conf_entries}; do
IFS='=' read label group <<< $line
group=$(echo $group|sed "s/^ *//g")
if [[ "$vg" == "$group" ]]; then
new="\"a$pv/\", "
filter_string=$filter_string$new
fi
done
done
filter_string=$filter_string$filter_suffix
# FIXME(jdg): Possible odd case that the lvm.conf file has been modified
# and doesn't have a filter entry to search/replace. For devstack don't
# know that we care, but could consider adding a check and add
sudo sed -i "s#^[ \t]*filter.*# $filter_string#g" /etc/cinder/lvm.conf
echo "set LVM filter_strings: $filter_string"
}
# Restore xtrace
$MY_XTRACE