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virt-xml: Add support for starting the domain

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Add support for starting the domain. By default, first the domain is
defined and then started. If the `--start` is used in combination with
`--no-define` a transient domain is created without persisting the
changes in the persistent domain definition.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
This commit is contained in:
Marc Hartmayer 2019-02-26 10:56:43 +01:00 committed by Cole Robinson
parent c2bff50977
commit 90b1a3ab7d
1 changed files with 45 additions and 8 deletions
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53
virt-xml
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@ -258,9 +258,28 @@ def define_changes(conn, inactive_xmlobj, devs, action, confirm):
for dev in devs:
setup_device(dev)
conn.defineXML(inactive_xmlobj.get_xml())
dom = conn.defineXML(inactive_xmlobj.get_xml())
print_stdout(_("Domain '%s' defined successfully.") % inactive_xmlobj.name)
return True
return dom
def start_domain_transient(conn, xmlobj, devs, action, confirm):
if confirm:
if not prompt_yes_or_no(
_("Start '%s' with the changed XML?") % xmlobj.name):
return False
if action == "hotplug":
for dev in devs:
setup_device(dev)
try:
dom = conn.createXML(xmlobj.get_xml())
except libvirt.libvirtError as e:
fail(_("Failed starting domain '%s': %s") % (xmlobj.name, e))
else:
print_stdout(_("Domain '%s' started successfully.") % xmlobj.name)
return dom
def update_changes(domain, devs, action, confirm):
@ -371,6 +390,8 @@ def parse_args():
define_g.add_argument("--no-define", dest='define', action="store_false",
help=_("Force not defining the domain."))
define_g.set_defaults(define=None)
outg.add_argument("--start", action="store_true",
help=_("Start the domain."))
outg.add_argument("--print-diff", action="store_true",
help=_("Only print the requested change, in diff format"))
outg.add_argument("--print-xml", action="store_true",
@ -412,6 +433,9 @@ def main(conn=None):
options.quiet = False
cli.setupLogging("virt-xml", options.debug, options.quiet)
if options.update and options.start:
fail(_("Either update or start a domain"))
if cli.check_option_introspection(options):
return 0
@ -469,14 +493,27 @@ def main(conn=None):
else:
logging.warning(
_("The VM is not running, --update is inapplicable."))
if options.define:
if options.define or options.start:
devs, action = prepare_changes(inactive_xmlobj, options, parserclass)
applied = define_changes(conn, inactive_xmlobj,
if options.define:
dom = define_changes(conn, inactive_xmlobj,
devs, action, options.confirm)
if not options.update and active_xmlobj and applied:
print_stdout(
_("Changes will take effect after the domain is fully powered off."))
if not options.update and not options.define:
if dom and options.start:
try:
dom.create()
except libvirt.libvirtError as e:
fail(_("Failed starting domain '%s': %s") % (inactive_xmlobj.name, e))
print_stdout(_("Domain '%s' started successfully.") %
inactive_xmlobj.name)
elif not options.update and active_xmlobj and dom:
print_stdout(
_("Changes will take effect after the domain is fully powered off."))
else:
dom = start_domain_transient(conn, inactive_xmlobj, devs,
action, options.confirm)
if not options.update and not options.define and not options.start:
prepare_changes(inactive_xmlobj, options, parserclass)
return 0