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webvirtcloud/computes/views.py
Real-Gecko c7e529a5fb Added django-login-required-middleware
Thus eliminating need for login_requred decorator on every view
2020-05-29 14:57:25 +03:00

294 lines
11 KiB
Python

import json
from django.utils import timezone
from django.http import HttpResponse, HttpResponseRedirect
from django.urls import reverse
from django.shortcuts import render, get_object_or_404
from libvirt import libvirtError
from instances.models import Instance
from accounts.models import UserInstance
from computes.models import Compute
from computes.forms import ComputeAddTcpForm, ComputeAddSshForm, ComputeEditHostForm, ComputeAddTlsForm, ComputeAddSocketForm
from vrtManager.hostdetails import wvmHostDetails
from vrtManager.connection import CONN_SSH, CONN_TCP, CONN_TLS, CONN_SOCKET, connection_manager, wvmConnect
def computes(request):
"""
:param request:
:return:
"""
if not request.user.is_superuser:
return HttpResponseRedirect(reverse('index'))
def get_hosts_status(computes):
"""
Function return all hosts all vds on host
"""
compute_data = []
for compute in computes:
compute_data.append({'id': compute.id,
'name': compute.name,
'hostname': compute.hostname,
'status': connection_manager.host_is_up(compute.type, compute.hostname),
'type': compute.type,
'login': compute.login,
'password': compute.password,
'details': compute.details
})
return compute_data
error_messages = []
computes = Compute.objects.filter().order_by('name')
computes_info = get_hosts_status(computes)
if request.method == 'POST':
if 'host_del' in request.POST:
compute_id = request.POST.get('host_id', '')
try:
del_user_inst_on_host = UserInstance.objects.filter(instance__compute_id=compute_id)
del_user_inst_on_host.delete()
finally:
try:
del_inst_on_host = Instance.objects.filter(compute_id=compute_id)
del_inst_on_host.delete()
finally:
del_host = Compute.objects.get(id=compute_id)
del_host.delete()
return HttpResponseRedirect(request.get_full_path())
if 'host_tcp_add' in request.POST:
form = ComputeAddTcpForm(request.POST)
if form.is_valid():
data = form.cleaned_data
new_tcp_host = Compute(name=data['name'],
hostname=data['hostname'],
type=CONN_TCP,
login=data['login'],
password=data['password'],
details=data['details'])
new_tcp_host.save()
return HttpResponseRedirect(request.get_full_path())
else:
for msg_err in form.errors.values():
error_messages.append(msg_err.as_text())
if 'host_ssh_add' in request.POST:
form = ComputeAddSshForm(request.POST)
if form.is_valid():
data = form.cleaned_data
new_ssh_host = Compute(name=data['name'],
hostname=data['hostname'],
type=CONN_SSH,
login=data['login'],
details=data['details'])
new_ssh_host.save()
return HttpResponseRedirect(request.get_full_path())
else:
for msg_err in form.errors.values():
error_messages.append(msg_err.as_text())
if 'host_tls_add' in request.POST:
form = ComputeAddTlsForm(request.POST)
if form.is_valid():
data = form.cleaned_data
new_tls_host = Compute(name=data['name'],
hostname=data['hostname'],
type=CONN_TLS,
login=data['login'],
password=data['password'],
details=data['details'])
new_tls_host.save()
return HttpResponseRedirect(request.get_full_path())
else:
for msg_err in form.errors.values():
error_messages.append(msg_err.as_text())
if 'host_socket_add' in request.POST:
form = ComputeAddSocketForm(request.POST)
if form.is_valid():
data = form.cleaned_data
new_socket_host = Compute(name=data['name'],
details=data['details'],
hostname='localhost',
type=CONN_SOCKET,
login='',
password='')
new_socket_host.save()
return HttpResponseRedirect(request.get_full_path())
else:
for msg_err in form.errors.values():
error_messages.append(msg_err.as_text())
if 'host_edit' in request.POST:
form = ComputeEditHostForm(request.POST)
if form.is_valid():
data = form.cleaned_data
compute_edit = Compute.objects.get(id=data['host_id'])
compute_edit.name = data['name']
compute_edit.hostname = data['hostname']
compute_edit.login = data['login']
compute_edit.password = data['password']
compute_edit.details = data['details']
compute_edit.save()
return HttpResponseRedirect(request.get_full_path())
else:
for msg_err in form.errors.values():
error_messages.append(msg_err.as_text())
return render(request, 'computes.html', locals())
def overview(request, compute_id):
"""
:param request:
:param compute_id:
:return:
"""
if not request.user.is_superuser:
return HttpResponseRedirect(reverse('index'))
error_messages = []
compute = get_object_or_404(Compute, pk=compute_id)
status = 'true' if connection_manager.host_is_up(compute.type, compute.hostname) is True else 'false'
try:
conn = wvmHostDetails(compute.hostname,
compute.login,
compute.password,
compute.type)
hostname, host_arch, host_memory, logical_cpu, model_cpu, uri_conn = conn.get_node_info()
hypervisor = conn.get_hypervisors_domain_types()
mem_usage = conn.get_memory_usage()
emulator = conn.get_emulator(host_arch)
version = conn.get_version()
lib_version = conn.get_lib_version()
conn.close()
except libvirtError as lib_err:
error_messages.append(lib_err)
return render(request, 'overview.html', locals())
def compute_graph(request, compute_id):
"""
:param request:
:param compute_id:
:return:
"""
compute = get_object_or_404(Compute, pk=compute_id)
try:
conn = wvmHostDetails(compute.hostname,
compute.login,
compute.password,
compute.type)
current_time = timezone.now().strftime("%H:%M:%S")
cpu_usage = conn.get_cpu_usage()
mem_usage = conn.get_memory_usage()
conn.close()
except libvirtError:
cpu_usage = {'usage': 0}
mem_usage = {'usage': 0}
data = json.dumps({'cpudata': cpu_usage['usage'],
'memdata': mem_usage,
'timeline': current_time})
response = HttpResponse()
response['Content-Type'] = "text/javascript"
response.write(data)
return response
def get_compute_disk_buses(request, compute_id, arch, machine, disk):
"""
:param request:
:param compute_id:
:param arch:
:param machine:
:param disk:
:return:
"""
data = dict()
compute = get_object_or_404(Compute, pk=compute_id)
try:
conn = wvmConnect(compute.hostname,
compute.login,
compute.password,
compute.type)
disk_device_types = conn.get_disk_device_types(arch, machine)
if disk in disk_device_types:
if disk == 'disk':
data['bus'] = sorted(disk_device_types)
elif disk == 'cdrom':
data['bus'] = ['ide', 'sata', 'scsi']
elif disk == 'floppy':
data['bus'] = ['fdc']
elif disk == 'lun':
data['bus'] = ['scsi']
except libvirtError:
pass
return HttpResponse(json.dumps(data))
def get_compute_machine_types(request, compute_id, arch):
"""
:param request:
:param compute_id:
:param arch:
:return:
"""
data = dict()
try:
compute = get_object_or_404(Compute, pk=compute_id)
conn = wvmConnect(compute.hostname,
compute.login,
compute.password,
compute.type)
data['machines'] = conn.get_machine_types(arch)
except libvirtError:
pass
return HttpResponse(json.dumps(data))
def get_compute_video_models(request, compute_id, arch, machine):
"""
:param request:
:param compute_id:
:param arch:
:param machine:
:return:
"""
data = dict()
try:
compute = get_object_or_404(Compute, pk=compute_id)
conn = wvmConnect(compute.hostname,
compute.login,
compute.password,
compute.type)
data['videos'] = conn.get_video_models(arch, machine)
except libvirtError:
pass
return HttpResponse(json.dumps(data))
def get_dom_capabilities(request, compute_id, arch, machine):
"""
:param request:
:param compute_id:
:param arch:
:param machine:
:return:
"""
data = dict()
try:
compute = get_object_or_404(Compute, pk=compute_id)
conn = wvmConnect(compute.hostname,
compute.login,
compute.password,
compute.type)
data['videos'] = conn.get_disk_device_types(arch, machine)
data['bus'] = conn.get_disk_device_types(arch, machine)
except libvirtError:
pass
return HttpResponse(json.dumps(data))