diff options
Diffstat (limited to 'django-nova/src/django_nova/views/instances.py')
| -rw-r--r-- | django-nova/src/django_nova/views/instances.py | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/django-nova/src/django_nova/views/instances.py b/django-nova/src/django_nova/views/instances.py new file mode 100644 index 00000000..6fe2e0d0 --- /dev/null +++ b/django-nova/src/django_nova/views/instances.py @@ -0,0 +1,203 @@ +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright 2010 United States Government as represented by the +# Administrator of the National Aeronautics and Space Administration. +# All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +""" +Views for managing Nova instances. +""" + +from django import http +from django import template +from django.contrib import messages +from django.contrib.auth.decorators import login_required +from django.shortcuts import redirect, render_to_response +from django_nova import exceptions +from django_nova import forms as nova_forms +from django_nova import shortcuts +from django_nova.exceptions import handle_nova_error + + +@login_required +@handle_nova_error +def index(request, project_id): + project = shortcuts.get_project_or_404(request, project_id) + instances = sorted(project.get_instances(), key=lambda k: k.public_dns_name) + + return render_to_response('django_nova/instances/index.html', { + 'region': project.region, + 'project': project, + 'instances': instances, + 'detail' : False, + }, context_instance = template.RequestContext(request)) + + +@login_required +@handle_nova_error +def detail(request, project_id, instance_id): + project = shortcuts.get_project_or_404(request, project_id) + instance = project.get_instance(instance_id) + instances = sorted(project.get_instances(), key=lambda k: k.public_dns_name) + + if not instance: + raise http.Http404() + + return render_to_response('django_nova/instances/index.html', { + 'region': project.region, + 'project': project, + 'selected_instance': instance, + 'instances': instances, + 'update_form': nova_forms.UpdateInstanceForm(instance), + 'detail' : True, + }, context_instance = template.RequestContext(request)) + + +@login_required +@handle_nova_error +def performance(request, project_id, instance_id): + project = shortcuts.get_project_or_404(request, project_id) + instance = project.get_instance(instance_id) + + if not instance: + raise http.Http404() + + return render_to_response('django_nova/instances/performance.html', { + 'region': project.region, + 'project': project, + 'instance': instance, + 'update_form': nova_forms.UpdateInstanceForm(instance), + }, context_instance = template.RequestContext(request)) + + +# TODO(devcamcar): Wrap this in an @ajax decorator. +def refresh(request, project_id): + # TODO(devcamcar): This logic belongs in decorator. + if not request.user.is_authenticated(): + return http.HttpResponseForbidden() + + project = shortcuts.get_project_or_404(request, project_id) + instances = sorted(project.get_instances(), key=lambda k: k.public_dns_name) + + return render_to_response('django_nova/instances/_instances_list.html', { + 'project': project, + 'instances': instances, + }, context_instance = template.RequestContext(request)) + + +@handle_nova_error +def refresh_detail(request, project_id, instance_id): + # TODO(devcamcar): This logic belongs in decorator. + if not request.user.is_authenticated(): + return http.HttpResponseForbidden() + + project = shortcuts.get_project_or_404(request, project_id) + instance = project.get_instance(instance_id) + instances = sorted(project.get_instances(), key=lambda k: k.public_dns_name) + + return render_to_response('django_nova/instances/_instances_list.html', { + 'project': project, + 'selected_instance': instance, + 'instances': instances, + }, context_instance = template.RequestContext(request)) + + +@login_required +@handle_nova_error +def terminate(request, project_id): + project = shortcuts.get_project_or_404(request, project_id) + + if request.method == 'POST': + instance_id = request.POST['instance_id'] + + try: + project.terminate_instance(instance_id) + except exceptions.NovaApiError, e: + messages.error(request, + 'Unable to terminate %s: %s' % + (instance_id, e.message,)) + else: + messages.success(request, + 'Instance %s has been terminated.' % instance_id) + + return redirect('nova_instances', project_id) + + +@login_required +@handle_nova_error +def console(request, project_id, instance_id): + project = shortcuts.get_project_or_404(request, project_id) + conn = project.get_nova_connection() + console = conn.get_console_output(instance_id) + response = http.HttpResponse(mimetype='text/plain') + response.write(console.output) + response.flush() + + return response + + +@login_required +@handle_nova_error +def graph(request, project_id, instance_id, graph_name): + project = shortcuts.get_project_or_404(request, project_id) + graph = project.get_instance_graph(instance_id, graph_name) + + if graph is None: + raise http.Http404() + + response = http.HttpResponse(mimetype='image/png') + response.write(graph) + + return response + + +@login_required +@handle_nova_error +def update(request, project_id, instance_id): + project = shortcuts.get_project_or_404(request, project_id) + instance = project.get_instance(instance_id) + + if not instance: + raise http.Http404() + + if request.method == 'POST': + form = nova_forms.UpdateInstanceForm(instance, request.POST) + if form.is_valid(): + try: + project.update_instance(instance_id, form.cleaned_data) + except exceptions.NovaApiError, e: + messages.error(request, + 'Unable to update instance %s: %s' % + (instance_id, e.message,)) + else: + messages.success(request, + 'Instance %s has been updated.' % instance_id) + return redirect('nova_instances', project_id) + else: + return render_to_response('django_nova/instances/edit.html', { + 'region': project.region, + 'project': project, + 'instance': instance, + 'update_form': form, + }, context_instance = template.RequestContext(request)) + + else: + return render_to_response('django_nova/instances/edit.html', { + 'region': project.region, + 'project': project, + 'instance': instance, + 'update_form': nova_forms.UpdateInstanceForm(instance), + }, context_instance = template.RequestContext(request)) + |