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add guess button for cloned instance name. this reads dhcp conf and uses settings.CLONE_INSTANCE_DEFAULT_PREFIX.

This commit is contained in:
Ing. Jan KRCMAR 2016-05-27 14:13:24 +02:00
parent 0b80b030fe
commit f484598414
3 changed files with 35 additions and 3 deletions

View file

@ -713,17 +713,23 @@
<form class="form-horizontal" action="" method="post" role="form">{% csrf_token %}
<div class="form-group">
<label class="col-sm-3 control-label" style="font-weight:normal;">{% trans "Clone Name" %}</label>
<div class="col-sm-4">
{% if request.user.is_superuser %}
<div class="col-sm-4">
<input id="clone_name" type="text" class="form-control" name="name" value="{{ vname }}-clone"/>
</div>
<div class="col-sm-4">
<button type="button" class="btn btn-sm btn-success pull-left" name="guess-clone-name"
onclick="guess_clone_name()" style="margin-top: 2px;">{% trans "Guess" %}</button>
</div>
{% else %}
<div class="col-sm-4">
<select id="select_clone_name" class="form-control" name="name" size="1"/>
{% for name in clone_free_names %}
<option value="{{ name }}">{{ name }}</option>
{% endfor %}
</select>
{% endif %}
</div>
{% endif %}
</div>
{% if request.user.is_superuser %}
<p style="font-weight:bold;">{% trans "Network devices" %}</p>
@ -1040,6 +1046,15 @@
});
}
</script>
<script>
function guess_clone_name() {
$.getJSON('/instance/guess_clone_name/', function(data) {
guessed_name = data['name'].split(".")[0];
$('#clone_name').val(guessed_name);
update_clone_disk_name(guessed_name);
});
}
</script>
<script>
function update_clone_disk_name(new_vname) {
vname = '{{ vname }}-clone';

View file

@ -10,6 +10,8 @@ urlpatterns = [
views.inst_status, name='inst_status'),
url(r'^guess_mac_address/(?P<vname>[\w\-\.]+)/$',
views.guess_mac_address, name='guess_mac_address'),
url(r'^guess_clone_name/$',
views.guess_clone_name, name='guess_clone_name'),
url(r'^check_instance/(?P<vname>[\w\-\.]+)/$',
views.check_instance, name='check_instance'),
]

View file

@ -780,6 +780,21 @@ def guess_mac_address(request, vname):
break
return HttpResponse(json.dumps(data));
@login_required
def guess_clone_name(request):
dhcp_file = '/srv/webvirtcloud/dhcpd.conf'
prefix = settings.CLONE_INSTANCE_DEFAULT_PREFIX
if os.path.isfile(dhcp_file):
instance_names = [i.name for i in Instance.objects.filter(name__startswith=prefix)]
with open(dhcp_file, 'r') as f:
for line in f:
line = line.strip()
if "host %s" % prefix in line:
hostname = line.split(' ')[1]
if hostname.startswith(prefix) and hostname not in instance_names:
return HttpResponse(json.dumps({'name': hostname}))
return HttpResponse(json.dumps({}));
@login_required
def check_instance(request, vname):
check_instance = Instance.objects.filter(name=vname)