Added the functionality to create opennebula user corresponding to dynamicweb user and creating and listing vms of the logged in user.

This commit is contained in:
M.Ravi 2017-04-23 21:22:50 +05:30
parent c8614f4f63
commit 37dc1f1c57

View file

@ -8,6 +8,8 @@ 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 oca
import socket
from oca.exceptions import OpenNebulaException
@ -102,7 +104,6 @@ class VirtualMachinePlanAdmin(admin.ModelAdmin):
class HostingManageVMsAdmin(admin.ModelAdmin):
client = None
def get_urls(self):
self.client = oca.Client(settings.OPENNEBULA_USERNAME + ':' + settings.OPENNEBULA_PASSWORD, settings.OPENNEBULA_PROTOCOL + '://' + settings.OPENNEBULA_DOMAIN + ':' + settings.OPENNEBULA_PORT + settings.OPENNEBULA_ENDPOINT)
urls = super().get_urls()
my_urls = [
url(r'^$', self.admin_site.admin_view(self.my_view, cacheable=True), name='showvms'),
@ -113,24 +114,26 @@ class HostingManageVMsAdmin(admin.ModelAdmin):
]
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 = 'a'
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):
s_message = ''
e_message = ''
try :
self.init_opennebula_client(str(request.user))
vm_pool = oca.VirtualMachinePool(self.client)
vm_pool.info()
except socket.timeout:
e_message = "Socket timeout error."
messages.add_message(request, messages.ERROR, "Socket timeout error.")
except OpenNebulaException:
e_message = "OpenNebulaException occurred."
messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.")
context = dict(
# Include common variables for rendering the admin template.
self.admin_site.each_context(request),
error_msg = e_message,
success_msg = s_message,
vms = vm_pool,
# Anything else you want in the context...
# key=value,
)
return TemplateResponse(request, "hosting/managevms.html", context)
@ -187,8 +190,6 @@ class HostingManageVMsAdmin(admin.ModelAdmin):
return redirect('admin:showvms')
def stop_vm(self, request, vmid):
e_message = ''
s_message = ''
vm_id = int(vmid)
vm = self.get_vm_by_id(vm_id)
if vm == -1:
@ -216,6 +217,40 @@ class HostingManageVMsAdmin(admin.ModelAdmin):
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), 'a', '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
user_logged_in.connect(user_logged_in_callback)
admin.site.register(HostingOrder, HostingOrderAdmin)
admin.site.register(VirtualMachineType)
admin.site.register(VirtualMachinePlan, VirtualMachinePlanAdmin)