Re: [PATCH] Extend libvirt-guests to shutdown only persistent VMs

At the moment, there is no configuration option for the libvirt-guests service that allows users to define that only persistent virtual machines should be shutdown on host shutdown. Currently, the service config allows to choose between two ON_SHUTDOWN actions that are executed on running virtual machines when the host goes down: shutdown, suspend. The ON_SHUTDOWN action should be orthogonal to the type of the virtual machine. However, the existing implementation, does not suspend transient virtual machines. This is the matrix of actions that is executed on virtual machines based on the configured ON_SHUTDOWN action and the type of a virtual machine. | persistent | transient shutdown | shutdown | shutdown (what we want to change) suspend | suspend | nothing Add config option PERSISTENT_ONLY to libvirt-guests config that allows users to define if the ON_SHUTDOWN action should be applied only on persistent virtual machines. PERSISTENT_ONLY can be set to true, false, default. The default option will implement the already existing logic. Case 1: PERSISTENT_ONLY=default | persistent | transient shutdown | shutdown | shutdown suspend | suspend | nothing Case 2: PERSISTENT_ONLY=true | persistent | transient shutdown | shutdown | nothing suspend | suspend | nothing Case 3: PERSISTENT_ONLY=false | persistent | transient shutdown | shutdown | shutdown suspend | suspend | suspend Change-Id: Ib03013d00b3ec60716287dad4743a038cf000763

--- tools/libvirt-guests.sh.in | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) diff --git a/tools/libvirt-guests.sh.in b/tools/libvirt-guests.sh.in index 344b54390a..c3c5954e17 100644 --- a/tools/libvirt-guests.sh.in +++ b/tools/libvirt-guests.sh.in @@ -38,6 +38,7 @@ PARALLEL_SHUTDOWN=0 START_DELAY=0 BYPASS_CACHE=0 SYNC_TIME=0 +PERSISTENT_ONLY="default" test -f "$initconfdir"/libvirt-guests && . "$initconfdir"/libvirt-guests @@ -438,14 +439,16 @@ shutdown_guests_parallel() # stop # Shutdown or save guests on the configured uris stop() { - local suspending="true" local uri= + local action="suspend" + local persistent_only="default" + # last stop was not followed by start [ -f "$LISTFILE" ] && return 0 if [ "x$ON_SHUTDOWN" = xshutdown ]; then - suspending="false" + action="shutdown" if [ $SHUTDOWN_TIMEOUT -lt 0 ]; then gettext "SHUTDOWN_TIMEOUT must be equal or greater than 0" echo @@ -454,6 +457,22 @@ stop() { fi fi + case "x$PERSISTENT_ONLY" in + xtrue) + persistent_only="true" + ;; + xfalse) + persistent_only="false" + ;; + *) + if [ "x$action" = xshutdown ]; then + persistent_only="false" + elif [ "x$action" = xsuspend ]; then + persistent_only="true" + fi + ;; + esac + : >"$LISTFILE" set -f for uri in $URIS; do @@ -478,7 +497,7 @@ stop() { echo fi - if "$suspending"; then + if "$persistent_only"; then local transient="$(list_guests "$uri" "--transient")" if [ $? -eq 0 ]; then local empty="true" @@ -486,7 +505,11 @@ stop() { for uuid in $transient; do if "$empty"; then - eval_gettext "Not suspending transient guests on URI: \$uri: " + if [ "x$action" = xsuspend ]; then + eval_gettext "Not suspending transient guests on URI: \$uri: " + else + eval_gettext "Not shutting down transient guests on URI: \$uri: " + fi empty="false" else printf ", " @@ -520,19 +543,19 @@ stop() { if [ -s "$LISTFILE" ]; then while read uri list; do - if "$suspending"; then + if [ "x$action" = xsuspend ]; then eval_gettext "Suspending guests on \$uri URI..."; echo else eval_gettext "Shutting down guests on \$uri URI..."; echo fi if [ "$PARALLEL_SHUTDOWN" -gt 1 ] && - ! "$suspending"; then + [ "x$action" = xshutdown ]; then shutdown_guests_parallel "$uri" "$list" else local guest= for guest in $list; do - if "$suspending"; then + if [ "x$action" = xsuspend ]; then suspend_guest "$uri" "$guest" else shutdown_guest "$uri" "$guest" -- 2.39.2 _______________________________________________ Devel mailing list -- devel(a)lists.libvirt.org To unsubscribe send an email to devel-leave(a)lists.libvirt.org