Refactor default network resource creations. Add Internet Access checkbox to plain VM creation,

circle/circle/settings/base.py

@@ -582,6 +582,10 @@ DEFAULT_SUBNETPOOL_PREFIXES = (
 )
 DEFAULT_SUBNETPOOL_PREFIX_LEN = 20
 
+DEFAULT_PUBLIC_NETWORK_NAME = "public"
+DEFAULT_PUBLIC_ROUTER_NAME_FOR_USER = "default_public"
+DEFAULT_PUBLIC_ROUTED_NET_NAME_FOR_USER = "default_public_routed"
+
 OPENSTACK_KEYSTONE_DEFAULT_DOMAIN="bme"
 OPENSTACK_KEYSTONE_URL="https://oscircle.guest.ik.bme.hu:5000"
 WEBSSO_ENABLED = True #TODO: it is always enabled, refactor openstack_auth

circle/dashboard/forms.py

@@ -120,9 +120,7 @@ class VmFromPlainImageForm(forms.Form):
         'class': "form-control input-tags",
     }))
 
-    network = forms.ChoiceField([], widget=forms.Select(attrs={
-        'class': "form-control input-tags",
-    }))
+    internet_access = forms.BooleanField(initial=True, required=False)
 
     def __init__(self, request, *args, **kwargs):
         super(VmFromPlainImageForm, self).__init__(*args, **kwargs)
@@ -145,10 +143,6 @@ class VmFromPlainImageForm(forms.Form):
             (flavor.id, '%s - %s CPUs, %s MB RAM' % (flavor.name, flavor.vcpus, flavor.ram)) for flavor in flavors
         )
 
-        networks = openstack_api.neutron.network_list_for_tenant(request, request.user.tenant_id)
-        self.fields['network'].choices = (
-            (network.id, '%s' % (network.name)) for network in networks
-        )
 
 class VmCustomizeForm(forms.Form):
     name = forms.CharField(widget=forms.TextInput(attrs={

circle/dashboard/templates/dashboard/vm-plain-image-create.html

@@ -10,7 +10,7 @@
     {{ form.name|as_crispy_field }}
     {{ form.image|as_crispy_field }}
     {{ form.flavor|as_crispy_field }}
-{#    {{ form.network|as_crispy_field }}#}
+    {{ form.internet_access|as_crispy_field }}
     <button class="btn btn-success btn-xs vm-create-start pull-right text-right" type="submit">
       <i class="fa fa-play"></i> {% trans "Start" %}
     </button>

circle/dashboard/views/vm.py

@@ -48,6 +48,7 @@ from common.models import (
 )
 from firewall.models import Vlan, Host, Rule
 from manager.scheduler import SchedulerError
+from network.models import DefaultPublicRouter, DefaultPublicRoutedNet
 from openstack_api.nova import Server
 from request.forms import TemplateRequestForm
 from request.models import TemplateAccessType
@@ -1049,17 +1050,24 @@ class VmPlainImageCreate(LoginRequiredMixin, TemplateView):
         return self.render_to_response(context)
 
     def post(self, request, *args, **kwargs):
-        #TODO: if there is a network available use it, of there isn't use none
-        #      there could be some checkboxes for the user to decide
-        #      could create default network, setup internet access
+        server_created = None
+        if request.POST.get("internet_access"):
+            default_public_routed_net_id = DefaultPublicRoutedNet.get_id(request)
+            server_created = openstack_api.nova.server_create(
+                request,
+                request.POST.get("name"),
+                request.POST.get("image"),
+                request.POST.get("flavor"),
+                nics=({
+                    'net-id': default_public_routed_net_id,
+                },)
+            )
+        else:
             server_created = openstack_api.nova.server_create(
                 request,
                 request.POST.get("name"),
                 request.POST.get("image"),
                 request.POST.get("flavor"),
-            # nics=({
-            #     'uuid': 'fc7ba14c-53d8-4810-9030-a0f00985c036'
-            # })
             )
 
         return HttpResponseRedirect("vm/%s#activity" % server_created.id)

circle/network/models.py

@@ -78,23 +78,101 @@ class Vxlan(models.Model):
 
 class SubnetPool(object):
     @classmethod
-    def get(cls, request):
+    def __get(cls, request):
         subnet_pools = openstack_api.neutron.subnetpool_list(request)
         subnet_pools = [sp for sp in subnet_pools if sp.name == settings.DEFAULT_SUBNETPOOL_NAME_FOR_USER]
         return subnet_pools[0] if len(subnet_pools) > 0 else None
 
     @classmethod
-    def create_if_not_exists(cls, sender, user, request, **kwargs):
-        if SubnetPool.get(request) is None:
-            openstack_api.neutron.subnetpool_create(
+    def __create_if_not_exists(cls, request):
+        default_subnet_pool = SubnetPool.__get(request)
+        if default_subnet_pool is None:
+            return openstack_api.neutron.subnetpool_create(
                 request,
                 settings.DEFAULT_SUBNETPOOL_NAME_FOR_USER,
                 settings.DEFAULT_SUBNETPOOL_PREFIXES,
                 default_prefixlen=settings.DEFAULT_SUBNETPOOL_PREFIX_LEN
             )
+        else:
+            return default_subnet_pool
 
     @classmethod
     def get_id(cls, request):
-        return SubnetPool.get(request).id
+        return SubnetPool.__create_if_not_exists(request).id
+
+class DefaultPublicRouter(object):
+    @classmethod
+    def __get_default_public_network(cls, request):
+        nets = openstack_api.neutron.network_list(request)
+        nets = [n for n in nets if n.name == settings.DEFAULT_PUBLIC_NETWORK_NAME]
+        return nets[0] if len(nets) > 0 else None
+
+    @classmethod
+    def __get(cls, request):
+        routers = openstack_api.neutron.router_list(request)
+        routers = [rtr for rtr in routers if rtr.name == settings.DEFAULT_PUBLIC_ROUTER_NAME_FOR_USER]
+        return routers[0] if len(routers) > 0 else None
+
+    @classmethod
+    def create_if_not_exists(cls, request, subnet_id):
+        default_public_router = DefaultPublicRouter.__get(request)
+        if default_public_router is None:
+            default_public_router = openstack_api.neutron.router_create(
+                request,
+                name=settings.DEFAULT_PUBLIC_ROUTER_NAME_FOR_USER,
+                external_gateway_info={
+                    "network_id": DefaultPublicRouter.__get_default_public_network(request).id
+                }
+            )
+
+            openstack_api.neutron.router_add_interface(
+                request,
+                default_public_router.id,
+                subnet_id=subnet_id
+            )
+        return default_public_router
+
+class DefaultPublicRoutedNet(object):
+    @classmethod
+    def __connect_router(cls, request, default_routed_net):
+        DefaultPublicRouter.create_if_not_exists(request, default_routed_net.subnets[0].id)
+
+    @classmethod
+    def __create_network(cls, request):
+        network_created = openstack_api.neutron.network_create(
+            request,
+            name=settings.DEFAULT_PUBLIC_ROUTED_NET_NAME_FOR_USER
+        )
+        try:
+            # TODO: default ip version should read from SETTINGS
+            subnet_created = openstack_api.neutron.subnet_create(
+                request,
+                network_created.id,
+                ip_version=4,
+                subnetpool_id=SubnetPool.get_id(request)
+            )
+            network_created.subnets.append(subnet_created)
+        except:
+            openstack_api.neutron.network_delete(request, network_created.id)
+            # TODO: user friendly error handling
+            raise Exception("Could not create subnet for network, deleted network.")
+        return network_created
 
-user_logged_in.connect(SubnetPool.create_if_not_exists)
+    @classmethod
+    def __get(cls, request):
+        nets = openstack_api.neutron.network_list_for_tenant(request, request.user.project_id)
+        nets = [n for n in nets if n.name == settings.DEFAULT_PUBLIC_ROUTED_NET_NAME_FOR_USER]
+        return nets[0] if len(nets) > 0 else None
+
+    @classmethod
+    def __create_if_not_exists(cls, request):
+        default_routed_net = DefaultPublicRoutedNet.__get(request)
+        if default_routed_net is None:
+            default_routed_net = DefaultPublicRoutedNet.__create_network(request)
+            DefaultPublicRoutedNet.__connect_router(request, default_routed_net)
+
+        return default_routed_net
+
+    @classmethod
+    def get_id(cls, request):
+        return DefaultPublicRoutedNet.__create_if_not_exists(request).id
\ No newline at end of file