Added start/stop functionality for VMs. Refactored a few functions.
This commit is contained in:
M.Ravi
parent
c7334dfac2
commit
b68fe31361
2 changed files with 58 additions and 60 deletions
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@ -6,6 +6,8 @@ from django.template.response import TemplateResponse
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from django.conf import settings
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from utils.mailer import BaseEmail
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from django import template
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from django.shortcuts import redirect
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from django.contrib import messages
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import oca
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import socket
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from oca.exceptions import OpenNebulaException
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@ -13,17 +15,6 @@ from oca.exceptions import OpenNebulaException
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from .forms import HostingOrderAdminForm
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from .models import VirtualMachineType, VirtualMachinePlan, HostingOrder, ManageVMs
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register = template.Library()
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def get_vm_state(value):
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if value == 1:
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return 'PENDING'
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#states = {-2: 'Any incl done', -1 : 'Any except done', 0 : 'INIT', 1 : 'PENDING', 2 : 'HOLD', 3 : 'ACTIVE', 4 : 'STOPPED', 5 : 'SUSPENDED', 6 : 'DONE', 7 : 'FAILED'}
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#return states.get(value)
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return 'UNKNO'
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register.filter('get_vm_state', get_vm_state)
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class HostingOrderAdmin(admin.ModelAdmin):
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# fields = ('slug', 'imdb_link', 'start', 'finish', 'added_by')
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list_display = ('id', 'created_at', 'plan', 'user')
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@ -113,12 +104,12 @@ class HostingManageVMsAdmin(admin.ModelAdmin):
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def get_urls(self):
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self.client = oca.Client(settings.OPENNEBULA_USERNAME + ':' + settings.OPENNEBULA_PASSWORD, settings.OPENNEBULA_PROTOCOL + '://' + settings.OPENNEBULA_DOMAIN + ':' + settings.OPENNEBULA_PORT + settings.OPENNEBULA_ENDPOINT)
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urls = super().get_urls()
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#socket.setdefaulttimeout(5)
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my_urls = [
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url(r'^$', self.admin_site.admin_view(self.my_view, cacheable=True)),
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url(r'^$', self.admin_site.admin_view(self.my_view, cacheable=True), name='showvms'),
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url(r'^create_vm/$', self.admin_site.admin_view(self.create_vm, cacheable=True), name='createvm'),
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url(r'^delete_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.delete_vm, cacheable=True), name='deletevm'),
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#url(r'^my_views/$', self.admin_site.admin_view(self.my_view, cacheable=True))
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url(r'^stop_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.stop_vm, cacheable=True), name='stopvm'),
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url(r'^start_vm/(?P<vmid>\d+)/$', self.admin_site.admin_view(self.start_vm, cacheable=True), name='startvm'),
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]
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return my_urls + urls
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@ -142,70 +133,72 @@ class HostingManageVMsAdmin(admin.ModelAdmin):
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# key=value,
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)
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return TemplateResponse(request, "hosting/managevms.html", context)
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# Creating VM by using method allocate(client, template)
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def create_vm(self, request):
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s_message = ''
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e_message = ''
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message = ''
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try :
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# Lets create a test VM with 128MB of ram and 1 CPU
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vm_id = oca.VirtualMachine.allocate(self.client, '<VM><MEMORY>128</MEMORY><CPU>1</CPU></VM>')
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s_message = "Created with id = " + str(vm_id)
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message = "Created with id = " + str(vm_id)
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vm_pool = self.get_vms()
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messages.add_message(request, messages.SUCCESS, message)
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# Lets print the VMs available in the pool
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# print("Printing the available VMs in the pool.")
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# vm_pool = oca.VirtualMachinePool(client)
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# for vm in vm_pool:
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# print("%s (memory: %s MB)" % ( vm.name, vm.template.memory))
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except socket.timeout:
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e_message = "Socket timeout error."
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messages.add_message(request, messages.ERROR, "Socket timeout error.")
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except OpenNebulaException:
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e_message = "OpenNebulaException occurred."
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context = dict(
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# Include common variables for rendering the admin template.
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self.admin_site.each_context(request),
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error_msg=e_message,
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success_msg=s_message,
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vms = vm_pool,
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# Anything else you want in the context...
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# key=value,
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)
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return TemplateResponse(request, "hosting/managevms.html", context)
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messages.add_message(request, messages.ERROR, "OpenNebulaException occurred.")
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return redirect('admin:showvms')
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# Retrives virtual machine pool information
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def get_vms(self):
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vm_pool = oca.VirtualMachinePool(self.client)
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vm_pool.info()
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return vm_pool
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# Delete VM from the pool and DB by using method finalize()
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def delete_vm(self, request, vmid):
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vm_pool = self.get_vms()
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e_message = ''
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s_message = ''
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# get the desired vm from the pool
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vm_id = int(vmid)
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vm = self.get_vm_by_id(vm_id)
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if vm == -1:
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print("Did not find a vm with id = " + str(vm_id))
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e_message = "Did not find a vm with id = " + str(vm_id)
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messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id))
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else :
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print("Deleting vm_id = " + str(vm_id) + " state = " + vm.str_state)
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if vm.str_state == 'PENDING' or vm.str_state =='POWEROFF' or vm.str_state =='ACTIVE':
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vm.delete()
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s_message = "Deleted from " + vm.str_state + " state vm with id = " + str(vm_id)
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messages.add_message(request, messages.SUCCESS, "Deleted from " + vm.str_state + " state vm with id = " + str(vm_id))
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else:
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s_message = "Deleted from " + vm.str_state + " state vm with id = " + str(vm_id)
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vm.finalize()
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vm_pool = self.get_vms()
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context = dict(
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# Include common variables for rendering the admin template.
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self.admin_site.each_context(request),
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error_msg=e_message,
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success_msg=s_message,
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vms = vm_pool,
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# Anything else you want in the context...
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# key=value,
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)
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return TemplateResponse(request, "hosting/managevms.html", context)
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messages.add_message(request, messages.SUCCESS, "Deleted (using finalize()) from " + vm.str_state + " state vm with id = " + str(vm_id))
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return redirect('admin:showvms')
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def stop_vm(self, request, vmid):
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e_message = ''
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s_message = ''
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vm_id = int(vmid)
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vm = self.get_vm_by_id(vm_id)
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if vm == -1:
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messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id))
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else :
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vm.stop()
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messages.add_message(request, messages.SUCCESS, "Stopped the vm with id = " + str(vm_id))
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return redirect('admin:showvms')
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def start_vm(self, request, vmid):
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vm_id = int(vmid)
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vm = self.get_vm_by_id(vm_id)
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if vm == -1:
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messages.add_message(request, messages.ERROR, "Did not find a vm with id = " + str(vm_id))
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else :
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vm.resume()
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messages.add_message(request, messages.SUCCESS, "Started the vm with id = " + str(vm_id))
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return redirect('admin:showvms')
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def get_vm_by_id(self, vmid):
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vms = self.get_vms()
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vms
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@ -1,12 +1,9 @@
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{% extends "admin/base_site.html" %}
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{% load staticfiles bootstrap3 i18n %}
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{% block content %}
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{% if error_msg %}
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<p class="alert alert-danger">{{error_msg}}</p>
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{% endif %}
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{% if success_msg %}
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<p class="alert alert-success">{{success_msg}}</p>
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{% endif %}
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<a href="{% url 'admin:createvm' %}">Create VM</a>
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{% if vms %}
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@ -19,7 +16,7 @@
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<th>Memory</th>
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<th>Status</th>
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<th>User Name</th>
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<th>Manage Vms</th>
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<th>Actions</th>
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</tr>
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</thead>
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<tbody>
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@ -30,12 +27,20 @@
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<td>{{vm.template.memory}}</td>
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<td>{{vm.str_state}}</td>
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<td>{{vm.uname}}</td>
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<td><a href="{% url 'admin:deletevm' vm.id %}">Delete VM</a></td>
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<td>
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{% if vm.str_state == 'ACTIVE' %}
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<a href="{% url 'admin:stopvm' vm.id %}">Stop VM</a>
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{% elif vm.str_state == 'STOPPED' %}
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<a href="{% url 'admin:startvm' vm.id %}">Start VM</a>
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{% endif %}
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<a href="{% url 'admin:deletevm' vm.id %}">Delete VM</a>
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</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</section>
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{% endif %}
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{% endblock %}
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