From 0a7c9f3826cffe052319fb3e48896c26973d8ab1 Mon Sep 17 00:00:00 2001
From: "Ing. Jan KRCMAR" <honza801@civ.zcu.cz>
Date: Thu, 20 Sep 2018 13:48:32 +0200
Subject: [PATCH] add settings.CLONE_INSTANCE_AUTO_MIGRATE
please add this setting to your current config, or it breaks your installation
allow automatic migrations of newly cloned instances to random host
---
instances/views.py | 62 +++++++++++++++++++------------
webvirtcloud/settings.py.template | 1 +
2 files changed, 40 insertions(+), 23 deletions(-)
diff --git a/instances/views.py b/instances/views.py
index 6efbedf..9fb8007 100644
--- a/instances/views.py
+++ b/instances/views.py
@@ -314,7 +314,32 @@ def instance(request, compute_id, vname):
return (network_source_pack[1], network_source_pack[0])
else:
return (network_source_pack[0], 'net')
-
+
+ def migrate_instance(new_compute, instance, live=False, unsafe=False, xml_del=False, offline=False):
+ status = connection_manager.host_is_up(new_compute.type, new_compute.hostname)
+ if not status:
+ return
+ if new_compute == instance.compute:
+ return
+ conn_migrate = wvmInstances(new_compute.hostname,
+ new_compute.login,
+ new_compute.password,
+ new_compute.type)
+ conn_migrate.moveto(conn, instance.name, live, unsafe, xml_del, offline)
+ instance.compute = new_compute
+ instance.save()
+ conn_migrate.close()
+ conn_new = wvmInstance(new_compute.hostname,
+ new_compute.login,
+ new_compute.password,
+ new_compute.type,
+ instance.name)
+ if autostart:
+ conn_new.set_autostart(1)
+ conn_new.close()
+ msg = _("Migrate to %s" % new_compute.hostname)
+ addlogmsg(request.user.username, instance.name, msg)
+
try:
conn = wvmInstance(compute.hostname,
compute.login,
@@ -334,11 +359,11 @@ def instance(request, compute_id, vname):
description = conn.get_description()
disks = conn.get_disk_device()
media = conn.get_media_device()
- networks = conn.get_net_device()
if len(media) != 0:
media_iso = sorted(conn.get_iso_media())
else:
media_iso = []
+ networks = conn.get_net_device()
vcpu_range = conn.get_max_cpus()
memory_range = [256, 512, 768, 1024, 2048, 4096, 6144, 8192, 16384]
if memory not in memory_range:
@@ -364,7 +389,6 @@ def instance(request, compute_id, vname):
default_format = settings.INSTANCE_VOLUME_DEFAULT_FORMAT
formats = conn.get_image_formats()
-
busses = conn.get_busses()
default_bus = settings.INSTANCE_VOLUME_DEFAULT_BUS
show_access_root_password = settings.SHOW_ACCESS_ROOT_PASSWORD
@@ -376,9 +400,13 @@ def instance(request, compute_id, vname):
if instance.uuid != uuid:
instance.uuid = uuid
instance.save()
+ msg = _("Fixing uuid %s" % uuid)
+ addlogmsg(request.user.username, instance.name, msg)
except Instance.DoesNotExist:
instance = Instance(compute_id=compute_id, name=vname, uuid=uuid)
instance.save()
+ msg = _("Instance.DoesNotExist: Creating new instance")
+ addlogmsg(request.user.username, instance.name, msg)
userinstances = UserInstance.objects.filter(instance=instance).order_by('user__username')
@@ -654,26 +682,11 @@ def instance(request, compute_id, vname):
unsafe = request.POST.get('unsafe_migrate', False)
xml_del = request.POST.get('xml_delete', False)
offline = request.POST.get('offline_migrate', False)
+
new_compute = Compute.objects.get(id=compute_id)
- conn_migrate = wvmInstances(new_compute.hostname,
- new_compute.login,
- new_compute.password,
- new_compute.type)
- conn_migrate.moveto(conn, vname, live, unsafe, xml_del, offline)
- instance.compute = new_compute
- instance.save()
- conn_migrate.close()
- if autostart:
- conn_new = wvmInstance(new_compute.hostname,
- new_compute.login,
- new_compute.password,
- new_compute.type,
- vname)
- conn_new.set_autostart(1)
- conn_new.close()
- msg = _("Migrate to %s" % new_compute.hostname)
- addlogmsg(request.user.username, instance.name, msg)
- return HttpResponseRedirect(reverse('instance', args=[compute_id, vname]))
+ migrate_instance(new_compute, instance, live, unsafe, xml_del, offline)
+
+ return HttpResponseRedirect(reverse('instance', args=[new_compute.id, vname]))
if 'change_network' in request.POST:
network_data = {}
@@ -773,7 +786,10 @@ def instance(request, compute_id, vname):
msg = _("Clone of '%s'" % instance.name)
addlogmsg(request.user.username, new_instance.name, msg)
- return HttpResponseRedirect(reverse('instance', args=[compute_id, clone_data['name']]))
+ if settings.CLONE_INSTANCE_AUTO_MIGRATE:
+ new_compute = Compute.objects.order_by('?').first()
+ migrate_instance(new_compute, new_instance, xml_del=True, offline=True)
+ return HttpResponseRedirect(reverse('instance', args=[new_instance.compute.id, new_instance.name]))
if 'change_options' in request.POST:
instance.is_template = request.POST.get('is_template', False)
diff --git a/webvirtcloud/settings.py.template b/webvirtcloud/settings.py.template
index 83015eb..c75b1a2 100644
--- a/webvirtcloud/settings.py.template
+++ b/webvirtcloud/settings.py.template
@@ -134,6 +134,7 @@ ALLOW_INSTANCE_MULTIPLE_OWNER = True
NEW_USER_DEFAULT_INSTANCES = []
CLONE_INSTANCE_DEFAULT_PREFIX = 'instance'
CLONE_INSTANCE_AUTO_NAME = False
+CLONE_INSTANCE_AUTO_MIGRATE = False
LOGS_PER_PAGE = 100
QUOTA_DEBUG = True
ALLOW_EMPTY_PASSWORD = True