Merge pull request #226 from levivm/opennebula-integration

added opennebula manager claass

hosting/models.py

@@ -4,6 +4,7 @@ import oca
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from django.utils.functional import cached_property
+from hosting.opennebula_functions import OpenNebulaManager
 
 from django.conf import settings
 
@@ -174,79 +175,38 @@ class VirtualMachinePlan(AssignPermissionsMixin, models.Model):
         self.status = self.CANCELED_STATUS
         self.save(update_fields=['status'])
 
+    @classmethod
+    def get_vm(self, email, vm_id):
+        # Get opennebula client
+        opennebula_client = OpenNebulaManager()
+
+        # Get vm given the id
+        vm = opennebula_client.get_vm(
+            email,
+            vm_id
+        )
+
+        # Parse vm data
+        vm_data = OpenNebulaManager.parse_vm(vm)
+
+        return vm_data
+
     @classmethod
     def get_vms(self, email):
-        # Get User
-        user_email = email
 
-        # Connect to open nebula server
+        # Get opennebula client
-        # TODO: handle potential connection error
+        opennebula_client = OpenNebulaManager()
-        oneadmin_client = oca.Client("{0}:{1}".format(
-            settings.OPENNEBULA_USERNAME,
-            settings.OPENNEBULA_PASSWORD),
-            "{protocol}://{domain}:{port}{endpoint}".format(
-                protocol=settings.OPENNEBULA_PROTOCOL,
-                domain=settings.OPENNEBULA_DOMAIN,
-                port=settings.OPENNEBULA_PORT,
-                endpoint=settings.OPENNEBULA_ENDPOINT
-        ))
-        # Get open nebula user id for given email
-        user_pool = oca.UserPool(oneadmin_client)
-        user_pool.info()
-        try:
-            user = user_pool.get_by_name(user_email)
-            user_id = user.id
-            logger.debug("User {user} exists.".format(user=user_email))
-        except WrongNameError as wrong_name_err:
-            # User does not exist. So, we create this user in OpenNebula
-            password = get_user_opennebula_password()
-            # We use the core authenticator driver for the new user
-            user_id = oneadmin_client.call('user.allocate', 
-                                           user_email, password,
-                                           'core')
-            logger.debug("User {0} does not exist. Created the user. User id = {1}", user_email, user_id)
 
-        # We should now have an OpenNebula user corresponding to user_email
+        # Get vm pool
-        # It is now ok to now perform opennebula functions with this user's client
+        vm_pool = opennebula_client.get_vms(email)
-        client = oca.Client("{0}:{1}".format(
-            user_email,
-            get_user_opennebula_password()),
-            "{protocol}://{domain}:{port}{endpoint}".format(
-                protocol=settings.OPENNEBULA_PROTOCOL,
-                domain=settings.OPENNEBULA_DOMAIN,
-                port=settings.OPENNEBULA_PORT,
-                endpoint=settings.OPENNEBULA_ENDPOINT
-        ))
-
-        # Get vm_pool for given user_id
-        vm_pool = oca.VirtualMachinePool(client)
-        vm_pool.info(filter=user_id)
 
         # Reset total price
         self.total_price = 0
         vms = []
         # Add vm in vm_pool to context
         for vm in vm_pool:
-            name = vm.name
+            vm_data = OpenNebulaManager.parse_vm(vm)
-            cores = int(vm.template.vcpu)
+            vms.append(vm_data)
-            memory = int(vm.template.memory) / 1024
-            # Check if vm has more than one disk
-            if 'DISK' in vm.template.multiple:
-                disk_size = 0
-                for disk in vm.template.disks:
-                    disk_size += int(disk.size) / 1024
-            else:
-                disk_size = int(vm.template.disk.size) / 1024
-
-            #TODO: Replace with vm plan
-            price = 0.6 * disk_size + 2 * memory + 5 * cores
-            vm = {}
-            vm['name'] = name
-            vm['price'] = price
-            vm['disk_size'] = disk_size
-            vm['cores'] = cores
-            vm['memory'] = memory
-            vms.append(vm)
             # self.total_price += price
         # self.save()
         return vms

hosting/opennebula_functions.py

@@ -19,6 +19,94 @@ from django import forms
 logger = logging.getLogger(__name__)
 
 
+class OpenNebulaManager:
+
+    VM_STATE = {
+        '0': 'INIT',
+        '1': 'PENDING',
+        '2': 'HOLD',
+        '3': 'ACTIVE',
+        '4': 'STOPPED',
+        '5': 'SUSPENDED',
+        '6': 'DONE',
+        '8': 'POWEROFF',
+        '9': 'UNDEPLOYED',
+        '10': 'CLONING',
+        '11': 'CLONING_FAILURE',
+    }
+
+    def __init__(self):
+        self.client = oca.Client("{0}:{1}".format(
+            settings.OPENNEBULA_USERNAME,
+            settings.OPENNEBULA_PASSWORD),
+            "{protocol}://{domain}:{port}{endpoint}".format(
+                protocol=settings.OPENNEBULA_PROTOCOL,
+                domain=settings.OPENNEBULA_DOMAIN,
+                port=settings.OPENNEBULA_PORT,
+                endpoint=settings.OPENNEBULA_ENDPOINT
+        ))
+
+    @classmethod
+    def get_vm_state(self, state):
+        return self.VM_STATE.get(str(state))
+
+    @classmethod
+    def parse_vm(self, vm):
+        name = vm.name
+        cores = int(vm.template.vcpu)
+        memory = int(vm.template.memory) / 1024
+        # Check if vm has more than one disk
+        if 'DISK' in vm.template.multiple:
+            disk_size = 0
+            for disk in vm.template.disks:
+                disk_size += int(disk.size) / 1024
+        else:
+            disk_size = int(vm.template.disk.size) / 1024
+
+        #TODO: Replace with vm plan
+        price = 0.6 * disk_size + 2 * memory + 5 * cores
+        vm_data = {}
+        vm_data['name'] = name
+        vm_data['price'] = price
+        vm_data['disk_size'] = disk_size
+        vm_data['cores'] = cores
+        vm_data['memory'] = memory
+        vm_data['deploy_id'] = vm.deploy_id
+        vm_data['id'] = vm.id
+        vm_data['state'] = self.get_vm_state(vm.state)
+
+        return vm_data
+
+    def get_vm(self, email, vm_id):
+        # Get vm's
+        vms = self.get_vms(email)
+
+        # Filter vm by given id
+        return vms.get_by_id(int(vm_id))
+
+    def get_vms(self, email):
+        client = self.client
+
+        # Get open nebula user id for given email
+        user_pool = oca.UserPool(client)
+        user_pool.info()
+
+        # TODO: handle potential name error
+        user_id = user_pool.get_by_name(email).id
+
+        # Get vm_pool for given user_id
+        vm_pool = oca.VirtualMachinePool(client)
+        vm_pool.info()
+
+        # TODO: this is just to test with oneadmin user, remove this
+        user_id = 0
+        vm_pool.info(filter=user_id)
+
+        return vm_pool
+
+
+
+
 class HostingManageVMAdmin(admin.ModelAdmin):
     client = None
     oneadmin_client = None

hosting/templates/hosting/virtual_machines.html

@@ -20,24 +20,24 @@
 				</tr>
 				</thead>
 				<tbody> 
-					{% for vm in vms %}
+					{% for vm in vms_opennebula %}
 					<tr>
-						<td scope="row">{{vm.name}}</td> 
+						<td scope="row">{{vm.deploy_id}}</td> 
 						<td>{{vm.price}} CHF</td> 
 						<td>
                            
-							{% if vm.status == 'pending' %}
+							{% if vm.state == 'ACTIVE' %}
-								<span class="h3 label label-warning"><strong>{{vm.get_status_display}}</strong></span>
+								<span class="h3 label label-success"><strong> {{vm.state}}</strong></span>
-							{% elif  vm.status == 'online' %}
+							{% elif  vm.state == 'POWEROFF' %}
-								<span class="h3 label label-success"><strong>{{vm.get_status_display}}</strong></span>
+								<span class="h3 label label-danger"><strong>{{vm.state}}</strong></span>
 							{% else %}
-								<span class="h3 label label-danger"><strong>{{vm.get_status_display}}</strong></span>
+								<span class="h3 label label-warning"><strong>{{vm.state}}</strong></span>
 							{% endif %}  
 
 						</td> 
 						<td>
-							<button type="button" class="btn btn-default"><a href="{% url 'hosting:virtual_machines' vm.id %}">{% trans "View Detail"%}</a></button>
+                            <button type="button" class="btn btn-default"><a href="{% url 'hosting:virtual_machines' vm.id %}">{% trans "View Detail"%}</a></button>
-						</td>
+                        </td>
 					</tr>
 					{% endfor %}
 				</tbody> 

hosting/views.py

@@ -1,6 +1,7 @@
 from collections import namedtuple
 
 from django.shortcuts import render
+from django.http import Http404
 from django.core.urlresolvers import reverse_lazy, reverse
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.views.generic import View, CreateView, FormView, ListView, DetailView,\
@@ -411,6 +412,13 @@ class VirtualMachinesPlanListView(LoginRequiredMixin, ListView):
     paginate_by = 10
     ordering = '-id'
 
+    def get_context_data(self, **kwargs):
+        context = super(VirtualMachinesPlanListView, self).get_context_data(**kwargs)
+        context.update({
+            'vms_opennebula': VirtualMachinePlan.get_vms(self.request.user.email)
+        })
+        return context
+
     def get_queryset(self):
         # hosting_admin = HostingManageVMAdmin.__new__(HostingManageVMAdmin)
         # print(hosting_admin.show_vms_view(self.request))
@@ -455,19 +463,60 @@ class CreateVirtualMachinesView(LoginRequiredMixin, View):
     #     return super(VirtualMachinesPlanListView, self).get_queryset()
 
 
-class VirtualMachineView(PermissionRequiredMixin, LoginRequiredMixin, UpdateView):
+class VirtualMachineView(PermissionRequiredMixin, LoginRequiredMixin, View):
     template_name = "hosting/virtual_machine_detail.html"
     login_url = reverse_lazy('hosting:login')
-    model = VirtualMachinePlan
+    # model = VirtualMachinePlan
-    context_object_name = "virtual_machine"
+    # context_object_name = "virtual_machine"
     permission_required = ['view_virtualmachineplan', 'cancel_virtualmachineplan']
-    fields = '__all__'
+    # fields = '__all__'
 
-    def get_success_url(self):
+    # def get_context_data(self, **kwargs):
-        vm = self.get_object()
+    #     vm_plan = get_object()
-        final_url = "%s%s" % (reverse('hosting:virtual_machines', kwargs={'pk': vm.id}),
+    #     context = super(VirtualMachineView, self).get_context_data(**kwargs)
-                              '#status-v')
+    #     context.update({
-        return final_url
+    #         'opennebula_vm': VirtualMachinePlan.get_vm(
+    #             self.request.user.email,
+    #             opennebula_id
+    #         )
+    #     })
+    #     return context
+
+    # def get_object(self, queryset=None):
+    #     # if queryset is None:
+    #     #     queryset = self.get_queryset()
+    #     # Next, try looking up by primary key.
+    #     vm_id = self.kwargs.get(self.pk_url_kwarg)
+    #     try:
+    #         return VirtualMachinePlan.get_vm(
+    #             self.request.user.email,
+    #             vm_id
+    #         )
+    #     except Exception as error:
+    #         raise Http404()
+
+    # def get_success_url(self):
+    #     vm = self.get_object()
+    #     final_url = "%s%s" % (reverse('hosting:virtual_machines', kwargs={'pk': vm.id}),
+    #                           '#status-v')
+    #     return final_url
+
+    def get(self, request, *args, **kwargs):
+        vm_id = self.kwargs.get('pk', 24)
+        try:
+            opennebula_vm = VirtualMachinePlan.get_vm(
+                self.request.user.email,
+                vm_id
+            )
+        except Exception as error:
+            print(error)
+            raise Http404()
+
+        context = {
+            'virtual_machine': opennebula_vm,
+        }
+        # context = {}
+        return render(request, self.template_name, context)
 
     def post(self, *args, **kwargs):
         vm = self.get_object()