Partial fixes for issues pointed by @rscnt
- Moved opennebula constants to base.py - Refactored all opennebula functions from admin.py to opennebula_functions.py - string#format for some strings - Renamed my_view function to show_vms - Added logger to show logs of exceptions generated
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					 4 changed files with 261 additions and 203 deletions
				
			
		|  | @ -474,3 +474,33 @@ else: | |||
| 
 | ||||
| ANONYMOUS_USER_NAME = 'anonymous@ungleich.ch' | ||||
| GUARDIAN_GET_INIT_ANONYMOUS_USER = 'membership.models.get_anonymous_user_instance' | ||||
| 
 | ||||
| 
 | ||||
| ############################################# | ||||
| # configurations for opennebula-integration # | ||||
| ############################################# | ||||
| 
 | ||||
| # The oneadmin user name of the OpenNebula infrastructure | ||||
| OPENNEBULA_USERNAME = 'oneadmin' | ||||
| 
 | ||||
| # The oneadmin password of the OpenNebula infrastructure | ||||
| # The default credentials of the Sandbox OpenNebula VM is | ||||
| # oneadmin:opennebula | ||||
| OPENNEBULA_PASSWORD = 'opennebula' | ||||
| 
 | ||||
| # The protocol is generally http or https | ||||
| OPENNEBULA_PROTOCOL = 'http' | ||||
| 
 | ||||
| # The ip address or the domain name of the opennebula infrastructure | ||||
| # OPENNEBULA_DOMAIN = '192.168.182.173' | ||||
| # OPENNEBULA_DOMAIN = '192.168.122.225' | ||||
| # OPENNEBULA_DOMAIN = '192.168.182.176' | ||||
| OPENNEBULA_DOMAIN = '192.168.42.35' | ||||
| 
 | ||||
| # The port to connect in order to send an xmlrpc request. The default | ||||
| # port is 2633 | ||||
| OPENNEBULA_PORT = '2633' | ||||
| 
 | ||||
| # The endpoint to which the XML RPC request needs to be sent to. The | ||||
| # default value is /RPC2 | ||||
| OPENNEBULA_ENDPOINT = '/RPC2' | ||||
|  | @ -19,33 +19,3 @@ INSTALLED_APPS+=( | |||
|     'django_extensions', | ||||
|     'debug_toolbar' | ||||
|     ) | ||||
| 
 | ||||
| 
 | ||||
| ############################################# | ||||
| # configurations for opennebula-integration # | ||||
| ############################################# | ||||
| 
 | ||||
| # The user name of the OpenNebula infrastructure | ||||
| OPENNEBULA_USERNAME = 'oneadmin' | ||||
| 
 | ||||
| # The password of the OpenNebula infrastructure | ||||
| # The default credentials of the Sandbox OpenNebula VM is  | ||||
| # oneadmin:opennebula | ||||
| OPENNEBULA_PASSWORD = 'opennebula' | ||||
| 
 | ||||
| # The protocol is generally http or https | ||||
| OPENNEBULA_PROTOCOL = 'http' | ||||
| 
 | ||||
| # The ip address or the domain name of the opennebula infrastructure | ||||
| # OPENNEBULA_DOMAIN = '192.168.182.173' | ||||
| # OPENNEBULA_DOMAIN = '192.168.122.225' | ||||
| #OPENNEBULA_DOMAIN = '192.168.182.176' | ||||
| OPENNEBULA_DOMAIN = '192.168.42.35' | ||||
| 
 | ||||
| # The port to connect in order to send an xmlrpc request. The default  | ||||
| # port is 2633 | ||||
| OPENNEBULA_PORT = '2633' | ||||
| 
 | ||||
| # The endpoint to which the XML RPC request needs to be sent to. The  | ||||
| # default value is /RPC2 | ||||
| OPENNEBULA_ENDPOINT = '/RPC2' | ||||
|  |  | |||
							
								
								
									
										176
									
								
								hosting/admin.py
									
										
									
									
									
								
							
							
						
						
									
										176
									
								
								hosting/admin.py
									
										
									
									
									
								
							|  | @ -1,23 +1,13 @@ | |||
| from django.contrib import admin | ||||
| from django.utils.html import format_html | ||||
| from django.core.urlresolvers import reverse | ||||
| from django.conf.urls import url | ||||
| from django.template.response import TemplateResponse | ||||
| from django.conf import settings | ||||
| from utils.mailer import BaseEmail | ||||
| from django import template | ||||
| from django.shortcuts import redirect | ||||
| from django.contrib import messages | ||||
| from django.contrib.auth.signals import user_logged_in | ||||
| import random | ||||
| import string | ||||
| 
 | ||||
| import oca | ||||
| import socket | ||||
| from oca.exceptions import OpenNebulaException | ||||
| from utils.mailer import BaseEmail | ||||
| from django.contrib.auth.signals import user_logged_in | ||||
| 
 | ||||
| from .forms import HostingOrderAdminForm | ||||
| from .models import VirtualMachineType, VirtualMachinePlan, HostingOrder, ManageVM | ||||
| from .opennebula_functions import HostingManageVMAdmin, user_logged_in_callback | ||||
| 
 | ||||
| class HostingOrderAdmin(admin.ModelAdmin): | ||||
|     # fields = ('slug', 'imdb_link', 'start', 'finish', 'added_by') | ||||
|  | @ -103,166 +93,10 @@ class VirtualMachinePlanAdmin(admin.ModelAdmin): | |||
|             email.send() | ||||
|         obj.save() | ||||
| 
 | ||||
| class HostingManageVMAdmin(admin.ModelAdmin): | ||||
|     client = None | ||||
|     def get_urls(self): | ||||
|         urls = super().get_urls() | ||||
|         my_urls = [ | ||||
|             url(r'^$', self.admin_site.admin_view(self.my_view, cacheable=True), name='showvms'), | ||||
|             url(r'^create_vm/$', self.admin_site.admin_view(self.create_vm, cacheable=True), name='createvm'), | ||||
|             url(r'^delete_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.delete_vm, cacheable=True), name='deletevm'), | ||||
|             url(r'^stop_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.stop_vm, cacheable=True), name='stopvm'), | ||||
|             url(r'^start_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.start_vm, cacheable=True), name='startvm'), | ||||
|         ] | ||||
|         return my_urls + urls | ||||
|      | ||||
|     # Function to initialize opennebula client based on the logged in  | ||||
|     # user | ||||
|     def init_opennebula_client(self, opennebula_user): | ||||
|         opennebula_user_password = get_random_password() | ||||
|         self.client = oca.Client(opennebula_user + ':' + opennebula_user_password, settings.OPENNEBULA_PROTOCOL + '://' + settings.OPENNEBULA_DOMAIN + ':' + settings.OPENNEBULA_PORT + settings.OPENNEBULA_ENDPOINT) | ||||
| 
 | ||||
|     # Function that lists the VMs of the current user | ||||
|     def my_view(self, request): | ||||
|         try : | ||||
|             self.init_opennebula_client(str(request.user)) | ||||
|             vm_pool = oca.VirtualMachinePool(self.client) | ||||
|             vm_pool.info() | ||||
|         except socket.timeout: | ||||
|             messages.add_message(request, messages.ERROR, "Socket timeout error.") | ||||
|         except OpenNebulaException: | ||||
|             messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.") | ||||
|         except OSError as err: | ||||
|             messages.add_message(request, messages.ERROR, str("OS error: {0}".format(err))) | ||||
|         context = dict( | ||||
|             # Include common variables for rendering the admin template. | ||||
|             self.admin_site.each_context(request), | ||||
|             vms = vm_pool, | ||||
|         ) | ||||
| 
 | ||||
|         return TemplateResponse(request, "hosting/managevms.html", context) | ||||
|    | ||||
|     # Creating VM by using method allocate(client, template) | ||||
|     def create_vm(self, request): | ||||
|         message = '' | ||||
|         # check if the request contains the template parameter, if it is  | ||||
|         # not set warn the user of setting this. | ||||
|         vm_template = request.POST.get('vm_template') | ||||
|         if vm_template == 'select' : | ||||
|             messages.add_message(request, messages.ERROR, "Please select a vm template") | ||||
|         else : | ||||
|             try : | ||||
|                 # We do have the vm_template param set. Get and parse it | ||||
|                 # and check it to be in the desired range. | ||||
|                 vm_template_int = int(vm_template) | ||||
|                 if vm_template_int >=1 and vm_template_int <= 8: | ||||
|                     # Lets create a test VM with 128MB of ram and 1 CPU | ||||
|                     vm_id = oca.VirtualMachine.allocate(self.client, '<VM><MEMORY>' + str(1024 * vm_template_int) + '</MEMORY><VCPU>' + str(vm_template_int)+ '</VCPU><CPU>' + str(0.1 * vm_template_int) + '</CPU><DISK><TYPE>fs</TYPE><SIZE>' + str(10000 * vm_template_int) + '</SIZE></DISK></VM>') | ||||
|                     message = "Created with id = " + str(vm_id) | ||||
|                     vm_pool = self.get_vms() | ||||
|                     messages.add_message(request, messages.SUCCESS, message)                     | ||||
|                 else: | ||||
|                     messages.add_message(request, messages.ERROR, "Please select an appropriate value for vm template.") | ||||
|             except socket.timeout: | ||||
|                 messages.add_message(request, messages.ERROR, "Socket timeout error.") | ||||
|             except OpenNebulaException: | ||||
|                 messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.") | ||||
|             except OSError as err: | ||||
|                 messages.add_message(request, messages.ERROR, str("OS error: {0}".format(err)))       | ||||
|             except ValueError: | ||||
|                 messages.add_message(request, messages.ERROR, "Please select an appropriate value for vm template.") | ||||
|         return redirect('admin:showvms') | ||||
|     | ||||
|     # Retrives virtual machine pool information | ||||
|     def get_vms(self): | ||||
|         vm_pool = oca.VirtualMachinePool(self.client) | ||||
|         vm_pool.info() | ||||
|         return vm_pool | ||||
|          | ||||
|     # Delete VM from the pool and DB by using method finalize() | ||||
|     def delete_vm(self, request, vmid): | ||||
|         # get the desired vm from the pool | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else : | ||||
|             print("Deleting vm_id = " + str(vm_id) + " state = " + vm.str_state) | ||||
|             if vm.str_state == 'PENDING' or vm.str_state =='POWEROFF' or vm.str_state =='ACTIVE': | ||||
|                 vm.delete() | ||||
|                 messages.add_message(request, messages.SUCCESS, "Deleted from " + vm.str_state + " state vm with id = " + str(vm_id)) | ||||
|             else: | ||||
|                 vm.finalize() | ||||
|                 messages.add_message(request, messages.SUCCESS, "Deleted (using finalize()) from " + vm.str_state + " state vm with id = " + str(vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def stop_vm(self, request, vmid): | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else : | ||||
|             vm.stop() | ||||
|             messages.add_message(request, messages.SUCCESS, "Stopped the vm with id = " + str(vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def start_vm(self, request, vmid): | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else : | ||||
|             vm.resume() | ||||
|             messages.add_message(request, messages.SUCCESS, "Started the vm with id = " + str(vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def get_vm_by_id(self, vmid): | ||||
|         vms = self.get_vms() | ||||
|         vms | ||||
|         for vm in vms: | ||||
|             if vm.id == vmid : | ||||
|                 return vm | ||||
|         return -1 | ||||
|          | ||||
| # callback for creating opennebula users on user login | ||||
| def user_logged_in_callback(sender, request, user, **kwargs): | ||||
|     client = oca.Client(settings.OPENNEBULA_USERNAME + ':' + settings.OPENNEBULA_PASSWORD, settings.OPENNEBULA_PROTOCOL + '://' + settings.OPENNEBULA_DOMAIN + ':' + settings.OPENNEBULA_PORT + settings.OPENNEBULA_ENDPOINT) | ||||
|     # Notes:  | ||||
|     #     1. python-oca library's oca.User.allocate(client, user, pass) | ||||
|     #     method does not work with python-oca version oca-4.15.0a1-py3.5 | ||||
|     #     This is because the call is missing a fourth parameter  | ||||
|     #     auth_driver. | ||||
|     #     To overcome this issue, we make a direct call to xml-rpc method | ||||
|     #     'user.allocate' passing this fourth parameter. | ||||
|     # | ||||
|     #     2. We have a dummy authentication driver in opennebula and we | ||||
|     #     use this so as to avoid opennebula authentication. However, we | ||||
|     #     need to supply a dummy password. Without this, we can not  | ||||
|     #     create an OpenNebula user. We use dummy string 'a' as password | ||||
|     #     for all users. | ||||
|     # | ||||
|     #     3. We user the user's email as the user name. | ||||
|     if find_opennebula_user_by_name(str(user.email), client) == -1 : | ||||
|         user_id = client.call('user.allocate', str(user.email), get_random_password(), 'dummy') | ||||
|         print("User " + str(user.email) + " does not exist. Created the user. User id = " + str(user_id)) | ||||
| 
 | ||||
| # Finds if an OpenNebula user with user_name exists. Returns the  | ||||
| # OpenNebula user if it exists, -1 otherwise. | ||||
| def find_opennebula_user_by_name(user_name, client): | ||||
|     pool = oca.UserPool(client) | ||||
|     pool.info() | ||||
|     for user in pool: | ||||
|         if user.name == user_name : | ||||
|             return user | ||||
|     return -1 | ||||
|      | ||||
| # Returns random password that is needed by OpenNebula | ||||
| def get_random_password(): | ||||
|     return ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(20)) | ||||
| 
 | ||||
| user_logged_in.connect(user_logged_in_callback) | ||||
| 
 | ||||
| admin.site.register(HostingOrder, HostingOrderAdmin) | ||||
| admin.site.register(VirtualMachineType) | ||||
| admin.site.register(VirtualMachinePlan, VirtualMachinePlanAdmin) | ||||
| 
 | ||||
| user_logged_in.connect(user_logged_in_callback) | ||||
| admin.site.register(ManageVM, HostingManageVMAdmin) | ||||
							
								
								
									
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								hosting/opennebula_functions.py
									
										
									
									
									
										Normal file
									
								
							
							
						
						
									
										224
									
								
								hosting/opennebula_functions.py
									
										
									
									
									
										Normal file
									
								
							|  | @ -0,0 +1,224 @@ | |||
| import logging | ||||
| import socket | ||||
| import string | ||||
| 
 | ||||
| import oca | ||||
| import random | ||||
| from django.conf import settings | ||||
| from django.conf.urls import url | ||||
| from django.contrib import admin | ||||
| from django.contrib import messages | ||||
| from django.shortcuts import redirect | ||||
| from django.template.response import TemplateResponse | ||||
| from oca.exceptions import OpenNebulaException | ||||
| 
 | ||||
| # Get an instance of a logger | ||||
| logger = logging.getLogger(__name__) | ||||
| 
 | ||||
| 
 | ||||
| class HostingManageVMAdmin(admin.ModelAdmin): | ||||
|     client = None | ||||
| 
 | ||||
|     def get_urls(self): | ||||
|         urls = super().get_urls() | ||||
|         my_urls = [ | ||||
|             url(r'^$', self.admin_site.admin_view(self.show_vms, cacheable=True), name='showvms'), | ||||
|             url(r'^create_vm/$', self.admin_site.admin_view(self.create_vm, cacheable=True), name='createvm'), | ||||
|             url(r'^delete_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.delete_vm, cacheable=True), | ||||
|                 name='deletevm'), | ||||
|             url(r'^stop_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.stop_vm, cacheable=True), name='stopvm'), | ||||
|             url(r'^start_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.start_vm, cacheable=True), | ||||
|                 name='startvm'), | ||||
|         ] | ||||
|         return my_urls + urls | ||||
| 
 | ||||
|     # Function to initialize opennebula client based on the logged in | ||||
|     # user | ||||
|     def init_opennebula_client(self, opennebula_user): | ||||
|         if self.client is None: | ||||
|             opennebula_user_password = get_random_password() | ||||
|             self.client = oca.Client("{0}:{1}".format(opennebula_user, opennebula_user_password), | ||||
|                                      "{protocol}://{domain}:{port}{endpoint}".format( | ||||
|                                          protocol=settings.OPENNEBULA_PROTOCOL, | ||||
|                                          domain=settings.OPENNEBULA_DOMAIN, | ||||
|                                          port=settings.OPENNEBULA_PORT, | ||||
|                                          endpoint=settings.OPENNEBULA_ENDPOINT | ||||
|                                      )) | ||||
| 
 | ||||
|     # Function that shows the VMs of the current user | ||||
|     def show_vms(self, request): | ||||
|         vm_pool = None | ||||
|         try: | ||||
|             self.init_opennebula_client(request.user) | ||||
|             vm_pool = oca.VirtualMachinePool(self.client) | ||||
|             vm_pool.info() | ||||
|         except socket.timeout: | ||||
|             messages.add_message(request, messages.ERROR, "Socket timeout error.") | ||||
|         except OpenNebulaException: | ||||
|             messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.") | ||||
|         except OSError as err: | ||||
|             messages.add_message(request, messages.ERROR, str("OS error: {0}".format(err))) | ||||
|         context = dict( | ||||
|             # Include common variables for rendering the admin template. | ||||
|             self.admin_site.each_context(request), | ||||
|             vms=vm_pool, | ||||
|         ) | ||||
| 
 | ||||
|         return TemplateResponse(request, "hosting/managevms.html", context) | ||||
| 
 | ||||
|     # Creating VM by using method allocate(client, template) | ||||
|     def create_vm(self, request): | ||||
|         message = '' | ||||
|         # check if the request contains the template parameter, if it is | ||||
|         # not set warn the user of setting this. | ||||
|         vm_template = request.POST.get('vm_template') | ||||
|         if vm_template == 'select': | ||||
|             messages.add_message(request, messages.ERROR, "Please select a vm template") | ||||
|         else: | ||||
|             try: | ||||
|                 # We do have the vm_template param set. Get and parse it | ||||
|                 # and check it to be in the desired range. | ||||
|                 # We have 8 possible VM templates for the moment which are 1x, 2x, 4x ... | ||||
|                 # the basic template of 10GB disk, 1GB ram, 1 vcpu, 0.1 cpu | ||||
|                 vm_template_int = int(vm_template) | ||||
|                 if 1 <= vm_template_int <= 8: | ||||
|                     vm_string_formatter = """ | ||||
|                                             <VM> | ||||
|                                               <MEMORY> | ||||
|                                                {memory} | ||||
|                                               </MEMORY> | ||||
|                                               <VCPU> | ||||
|                                                {vcpu} | ||||
|                                               </VCPU> | ||||
|                                               <CPU> | ||||
|                                                 {cpu} | ||||
|                                               </CPU> | ||||
|                                               <DISK> | ||||
|                                                 <TYPE> | ||||
|                                                   {disk_type} | ||||
|                                                 </TYPE> | ||||
|                                                 <SIZE> | ||||
|                                                   {size} | ||||
|                                                 </SIZE> | ||||
|                                               </DISK> | ||||
|                                             </VM> | ||||
|                                             """ | ||||
|                     vm_id = oca.VirtualMachine.allocate(self.client, | ||||
|                                                         vm_string_formatter.format( | ||||
|                                                             memory=1024 * vm_template_int, | ||||
|                                                             vcpu=vm_template_int, | ||||
|                                                             cpu=0.1 * vm_template_int, | ||||
|                                                             disk_type='fs', | ||||
|                                                             size=10000 * vm_template_int)) | ||||
|                     message = "Created with id = " + str(vm_id) | ||||
|                     messages.add_message(request, messages.SUCCESS, message) | ||||
|                 else: | ||||
|                     messages.add_message(request, messages.ERROR, | ||||
|                                          "Please select an appropriate value for vm template.") | ||||
|             except socket.timeout as socket_err: | ||||
|                 messages.add_message(request, messages.ERROR, "Socket timeout error.") | ||||
|                 logger.error("Socket timeout error: {0}".format(socket_err)) | ||||
|             except OpenNebulaException as opennebula_err: | ||||
|                 messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.") | ||||
|                 logger.error("OpenNebulaException error: {0}".format(opennebula_err)) | ||||
|             except OSError as os_err: | ||||
|                 messages.add_message(request, messages.ERROR, str("OS error: {0}".format(os_err))) | ||||
|                 logger.error("OSError : {0}".format(os_err)) | ||||
|             except ValueError as value_err: | ||||
|                 messages.add_message(request, messages.ERROR, | ||||
|                                      "Please select an appropriate value for vm template.") | ||||
|                 logger.error("ValueError : {0}".format(value_err)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     # Retrives virtual machine pool information | ||||
|     def get_vms(self): | ||||
|         vm_pool = oca.VirtualMachinePool(self.client) | ||||
|         vm_pool.info() | ||||
|         return vm_pool | ||||
| 
 | ||||
|     # Delete VM from the pool and DB by using method finalize() | ||||
|     def delete_vm(self, request, vmid): | ||||
|         # get the desired vm from the pool | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else: | ||||
|             print("Deleting vm_id = " + str(vm_id) + " state = " + vm.str_state) | ||||
|             if vm.str_state == 'PENDING' or vm.str_state == 'POWEROFF' or vm.str_state == 'ACTIVE': | ||||
|                 vm.delete() | ||||
|                 messages.add_message(request, messages.SUCCESS, | ||||
|                                      "Deleted from " + vm.str_state + " state vm with id = " + str(vm_id)) | ||||
|             else: | ||||
|                 vm.finalize() | ||||
|                 messages.add_message(request, messages.SUCCESS, | ||||
|                                      "Deleted (using finalize()) from " + vm.str_state + " state vm with id = " + str( | ||||
|                                          vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def stop_vm(self, request, vmid): | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else: | ||||
|             vm.stop() | ||||
|             messages.add_message(request, messages.SUCCESS, "Stopped the vm with id = " + str(vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def start_vm(self, request, vmid): | ||||
|         vm_id = int(vmid) | ||||
|         vm = self.get_vm_by_id(vm_id) | ||||
|         if vm == -1: | ||||
|             messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id)) | ||||
|         else: | ||||
|             vm.resume() | ||||
|             messages.add_message(request, messages.SUCCESS, "Started the vm with id = " + str(vm_id)) | ||||
|         return redirect('admin:showvms') | ||||
| 
 | ||||
|     def get_vm_by_id(self, vmid): | ||||
|         vms = self.get_vms() | ||||
|         for vm in vms: | ||||
|             if vm.id == vmid: | ||||
|                 return vm | ||||
|         return -1 | ||||
| 
 | ||||
| 
 | ||||
| # callback for creating opennebula users on user login | ||||
| def user_logged_in_callback(sender, request, user, **kwargs): | ||||
|     client = oca.Client(settings.OPENNEBULA_USERNAME + ':' + settings.OPENNEBULA_PASSWORD, | ||||
|                         settings.OPENNEBULA_PROTOCOL + '://' + settings.OPENNEBULA_DOMAIN + ':' + settings.OPENNEBULA_PORT + settings.OPENNEBULA_ENDPOINT) | ||||
|     # Notes: | ||||
|     #     1. python-oca library's oca.User.allocate(client, user, pass) | ||||
|     #     method does not work with python-oca version oca-4.15.0a1-py3.5 | ||||
|     #     This is because the call is missing a fourth parameter | ||||
|     #     auth_driver. | ||||
|     #     To overcome this issue, we make a direct call to xml-rpc method | ||||
|     #     'user.allocate' passing this fourth parameter. | ||||
|     # | ||||
|     #     2. We have a dummy authentication driver in opennebula and we | ||||
|     #     use this so as to avoid opennebula authentication. However, we | ||||
|     #     need to supply a dummy password. Without this, we can not | ||||
|     #     create an OpenNebula user. We use dummy string 'a' as password | ||||
|     #     for all users. | ||||
|     # | ||||
|     #     3. We user the user's email as the user name. | ||||
|     if find_opennebula_user_by_name(str(user.email), client) == -1: | ||||
|         user_id = client.call('user.allocate', str(user.email), get_random_password(), 'dummy') | ||||
|         print("User " + str(user.email) + " does not exist. Created the user. User id = " + str(user_id)) | ||||
| 
 | ||||
| 
 | ||||
| # Finds if an OpenNebula user with user_name exists. Returns the | ||||
| # OpenNebula user if it exists, -1 otherwise. | ||||
| def find_opennebula_user_by_name(user_name, client): | ||||
|     pool = oca.UserPool(client) | ||||
|     pool.info() | ||||
|     for user in pool: | ||||
|         if user.name == user_name: | ||||
|             return user | ||||
|     return -1 | ||||
| 
 | ||||
| 
 | ||||
| # Returns random password that is needed by OpenNebula | ||||
| def get_random_password(): | ||||
|     return ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits) for _ in range(20)) | ||||
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