mirror of
git://sourceware.org/git/lvm2.git
synced 2025-11-29 00:23:49 +03:00
lvmconf: add --enable-halvm, --disable-halvm, --services, --mirrorservice, --startstopservices options and use proper global/use_lvmetad default value
This patch adds new options to lvmconf:
--enable-halvm (just like --enable-cluster, but configure LVM
for use in HA LVM - meaning disabling lvmetad and
making sure we have locking_type=1)
--disable-halvm (just like --disable-cluster, but configure LVM
back from HA LVM - meaning enabling lvmetad if
it's enabled by default and making sure we have
default locking type set)
--services (causes clvmd and lvmetad services to be enabled or
disabled appropriately and conforming to the changes
in lvm configuration we've just made with lvmconf)
--mirrorservice (in addition to clvmd and lvmetad services, also
enable or disable cmirrord service appropriately;
this is a separate option because cmirrord is
optional and it doesn't need to be always enabled
when clvmd is enabled)
--startstopservices (in addition to enabling or disabling services,
start and stop these services immediately)
These options are supposed to help users to make their system ready
for cluster with clvmd (active-active) or HA LVM (active-passive) use
while lvmconf script can handle services as well so users don't need
to bother about setting them manually.
Also, before this patch, we hardcoded global/use_lvmetad=0 as default
value in lvmconf script. Howeverm this default may change by just
flipping the value in config_settings.h and we may forget to edit
the lvmconf. It's better to use lvm dumpconfig --type default global/use_lvmetad
to get the actual default value and use this one instead of hardcoded one.
This commit is contained in:
Peter Rajnoha
@@ -16,7 +16,20 @@
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# Edit an lvm.conf file to adjust various properties
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#
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DEFAULT_USE_LVMETAD=0
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# cluster with clvmd and/or locking lib?
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HANDLE_CLUSTER=0
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# cluster without clvmd?
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HANDLE_HALVM=0
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# also enable services appropriately (lvmetad, clvmd)?
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HANDLE_SERVICES=0
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# also enable cmirrord service in addition?
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HANDLE_MIRROR_SERVICE=0
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# also start/start services in addition to enabling/disabling them?
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START_STOP_SERVICES=0
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function usage
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{
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@@ -25,13 +38,25 @@ function usage
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echo "Commands:"
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echo "Enable clvm: --enable-cluster [--lockinglibdir <dir>] [--lockinglib <lib>]"
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echo "Disable clvm: --disable-cluster"
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echo "Enable halvm: --enable-halvm"
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echo "Disable halvm: --disable-halvm"
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echo "Set locking library: --lockinglibdir <dir> [--lockinglib <lib>]"
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echo ""
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echo "Global options:"
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echo "Config file location: --file <configfile>"
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echo "Set services: --services [--mirrorservice] [--startstopservices]"
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echo ""
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}
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function set_default_use_lvmetad_var
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{
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eval $(lvm dumpconfig --type default global/use_lvmetad 2>/dev/null)
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if [ "$?" != "0" ]; then
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USE_LVMETAD=0
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else
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USE_LVMETAD=$use_lvmetad
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fi
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}
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function parse_args
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{
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@@ -40,13 +65,27 @@ function parse_args
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--enable-cluster)
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LOCKING_TYPE=3
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USE_LVMETAD=0
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HANDLE_CLUSTER=1
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shift
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;;
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--disable-cluster)
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LOCKING_TYPE=1
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USE_LVMETAD=$DEFAULT_USE_LVMETAD
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set_default_use_lvmetad_var
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HANDLE_CLUSTER=1
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shift
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;;
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--enable-halvm)
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LOCKING_TYPE=1
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USE_LVMETAD=0
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HANDLE_HALVM=1
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shift
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;;
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--disable-halvm)
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LOCKING_TYPE=1
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set_default_use_lvmetad_var
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HANDLE_HALVM=1
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shift
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;;
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--lockinglibdir)
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if [ -n "$2" ]; then
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LOCKINGLIBDIR=$2
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@@ -55,6 +94,7 @@ function parse_args
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usage
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exit 1
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fi
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HANDLE_CLUSTER=1
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;;
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--lockinglib)
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if [ -n "$2" ]; then
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@@ -64,6 +104,7 @@ function parse_args
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usage
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exit 1
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fi
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HANDLE_CLUSTER=1
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;;
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--file)
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if [ -n "$2" ]; then
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@@ -74,6 +115,18 @@ function parse_args
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exit 1
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fi
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;;
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--services)
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HANDLE_SERVICES=1
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shift
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;;
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--mirrorservice)
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HANDLE_MIRROR_SERVICE=1
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shift
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;;
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--startstopservices)
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START_STOP_SERVICES=1
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shift
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;;
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*)
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usage
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exit 1
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@@ -91,6 +144,22 @@ function validate_args
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exit 10
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fi
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if [ "$HANDLE_CLUSTER" = "1" -a "$HANDLE_HALVM" = "1" ]; then
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echo "Either HA LVM or cluster method may be used at one time"
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exit 18
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fi
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if [ "$HANDLE_SERVICES" = "0" ]; then
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if [ "$HANDLE_MIRROR_SERVICE" = "1" ]; then
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echo "--mirrorservice may be used only with --services"
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exit 19
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fi
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if [ "$START_STOP_SERVICES" = "1" ]; then
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echo "--startstopservices may be used only with --services"
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exit 19
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fi
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fi
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if [ -z "$LOCKING_TYPE" ] && [ -z "$LOCKINGLIBDIR" ]; then
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usage
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exit 1
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@@ -277,3 +346,104 @@ if [ $? != 0 ]
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fi
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rm -f $SCRIPTFILE $TMPFILE
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function set_service {
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local type="$1"
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local action="$2"
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shift 2
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if [ "$type" = "systemd" ]; then
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if [ "$action" = "activate" ]; then
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for i in $@; do
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eval $($SYSTEMCTL_BIN show $i -p LoadState)
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test "$LoadState" = "loaded" || continue
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$SYSTEMCTL_BIN enable $i
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if [ "$START_STOP_SERVICES" = "1" ]; then
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$SYSTEMCTL_BIN start $i
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fi
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done
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elif [ "$action" = "deactivate" ]; then
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for i in $@; do
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eval $($SYSTEMCTL_BIN show $i -p LoadState)
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test "$LoadState" = "loaded" || continue
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$SYSTEMCTL_BIN disable $i
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if [ "$START_STOP_SERVICES" = "1" ]; then
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$SYSTEMCTL_BIN stop $i
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fi
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done
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fi
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elif [ "$type" = "sysv" ]; then
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if [ "$action" = "activate" ]; then
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for i in $@; do
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$CHKCONFIG_BIN --list $i > /dev/null || continue
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$CHKCONFIG_BIN $i on
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if [ "$START_STOP_SERVICES" = "1" ]; then
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$SERVICE_BIN $i start
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fi
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done
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elif [ "$action" = "deactivate" ]; then
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for i in $@; do
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$CHKCONFIG_BIN --list $i > /dev/null || continue
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if [ "$START_STOP_SERVICES" = "1" ]; then
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$SERVICE_BIN $i stop
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fi
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$CHKCONFIG_BIN $i off
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done
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fi
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fi
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}
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# Start/stop and enable/disable services if needed.
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if [ "$HANDLE_SERVICES" == "1" ]; then
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SYSTEMCTL_BIN=$(which systemctl 2>/dev/null)
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CHKCONFIG_BIN=$(which chkconfig 2>/dev/null)
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SERVICE_BIN=$(which service 2>/dev/null)
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# Systemd services
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if [ -n "$SYSTEMCTL_BIN" ]; then
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if [ "$USE_LVMETAD" = "0" ]; then
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set_service systemd deactivate lvm2-lvmetad.service lvm2-lvmetad.socket
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else
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set_service systemd activate lvm2-lvmetad.socket
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fi
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if [ "$LOCKING_TYPE" = "3" ]; then
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set_service systemd activate lvm2-cluster-activation.service
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if [ "$HANDLE_CMIRROR_SERVICE" ]; then
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set_service activate lvm2-cmirrord.service
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fi
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else
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set_service systemd deactivate lvm2-cluster-activation.service
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if [ "$HANDLE_CMIRROR_SERVICE" ]; then
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set_service systemd deactivate lvm2-cmirrord.service
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fi
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fi
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# System V init scripts
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elif [ -n "$SERVICE_BIN" -a -n "$CHKCONFIG_BIN" ]; then
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if [ "$USE_LVMETAD" = "0" ]; then
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set_service sysv deactivate lvm2-lvmetad
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else
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set_service sysv activate lvm2-lvmetad
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fi
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if [ "$LOCKING_TYPE" = "3" ]; then
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set_service sysv activate clvmd
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if [ "$HANDLE_MIRROR_SERVICE" = "1" ]; then
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set_service sysv activate cmirrord
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fi
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else
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set_service sysv deactivate clvmd
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if [ "$HANDLE_MIRROR_SERVICE" = "1" ]; then
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set_service sysv deactivate cmirrord
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fi
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fi
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# None of the service tools found, error out
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else
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echo "Missing tools to handle services"
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exit 20
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fi
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fi
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