d470867f08
DevStack currently lacks support for LVM ephemeral storage in Nova. This support is important for testing of Nova's LVM backend. The proposed change adds a default volume group, to be shared by Cinder and Nova. It also adds a configuration option NOVA_BACKEND, which must be LVM if it is set, that determines whether Nova should be configured to use LVM ephemeral storage. Change-Id: I4eb9afff3536fbcd563939f2d325efbb845081bb
72 lines
1.8 KiB
Bash
72 lines
1.8 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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# 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.LVMISCSIDriver"
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iniset $CINDER_CONF $be_name volume_group $VOLUME_GROUP_NAME-$be_name
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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 $VOLUME_BACKING_FILE_SIZE
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}
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# Restore xtrace
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$MY_XTRACE
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# mode: shell-script
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# End:
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