mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 19:26:48 +00:00
050d071ff9
As the storage and network pages; plan reviewed with Codex. - The list is grouped by type (bridges, bonds, VLANs, ethernet; a type the host has none of is left out), three cards a row, with a search of their names, MACs and networks (table_filter.js, which now takes any element with data-search as a row); a card per interface: its link as the kernel reports it (up green, down grey, another state or unknown told as such, no red card for a link that is merely down), MAC, MTU, speed when known, the members it reports and the libvirt networks that use it, linked. - An interface's page: an Interface card (type, libvirt's own state where it manages interfaces, link, start mode, MAC, MTU, speed, STP, networks using it); on a host whose libvirt changes interfaces, a card per family with how it is addressed and its addresses; the members of a bridge, bond or VLAN with their link and speed, or that none is reported; for a bridge, the running VMs' cards on it, directly or through a network using it, with their tap and MAC, linked (wvmInterface.get_vms: one domain listing). Not the bridge's delay: netcf tells it in seconds, the udev backend in hundredths. Start or Stop in its heading, Delete in its menu, disabled while it runs, on hosts that can change interfaces only. - A host whose libvirt only reads interfaces says so once, with that it does not tell their addresses, instead of "None" on every page. - The New interface dialog is one form, as the New pool and New network ones (choice_dialog.js, radio_card.html): Bridge or Ethernet, a bridge's member from the devices it can take, an ethernet interface's device from the ones the host does not define yet, a static address's fields with its choice; a refused interface, or one libvirt refuses, opens it again with what was entered; a made one opens its page. - networks_by_device maps the libvirt networks to their bridges or interfaces on the page's own connection.
116 lines
5.6 KiB
Python
116 lines
5.6 KiB
Python
from django.contrib import messages
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from django.shortcuts import render, get_object_or_404
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from django.http import HttpResponseRedirect
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from django.urls import reverse
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from django.utils.translation import gettext_lazy as _
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from libvirt import libvirtError
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from computes.models import Compute
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from instances.models import Instance
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from interfaces.forms import AddInterface
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from logs.audit import audit
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from vrtManager.interface import networks_by_device, wvmInterface, wvmInterfaces
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from admin.decorators import superuser_only
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@superuser_only
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def interfaces(request, compute_id):
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"""The host's interfaces, and a new one where its libvirt can define them."""
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compute = get_object_or_404(Compute, pk=compute_id)
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try:
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conn = wvmInterfaces(compute.hostname, compute.login, compute.password, compute.type)
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ifaces_all = conn.get_ifaces_info()
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defined_names = [iface["name"] for iface in ifaces_all]
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changeable = conn.can_change_interfaces()
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used_by = networks_by_device(conn.wvm)
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for iface in ifaces_all:
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iface["networks"] = used_by.get(iface["name"], [])
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# the list by type, in libvirt's four, a type the host has none of left out
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iface_groups = [(title, [iface for iface in ifaces_all if iface["type"] == kind])
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for kind, title in (("bridge", _("Bridges")), ("bond", _("Bonds")),
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("vlan", _("VLANs")), ("ethernet", _("Ethernet")))]
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form = AddInterface()
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# the new interface dialog's type: the one sent back after a refusal
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if_kind = request.POST.get("itype", "bridge")
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# the host's devices are only the create form's choices
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netdevs, members, netdev_error = [], [], None
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if changeable:
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try:
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netdevs = conn.get_net_devices()
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members = conn.get_member_candidates(netdevs)
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ethernet_devices = [dev for dev in members if dev not in defined_names]
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except Exception as err: # a host without the node device driver too
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netdev_error = err
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messages.error(request, _("The network devices of this host could not be read: %(error)s") % {"error": err})
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# the page says why nothing is created on a host that cannot change
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# interfaces; without the host's devices nothing can be checked
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if request.method == "POST" and "create" in request.POST and changeable and netdev_error is None:
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form = AddInterface(request.POST, netdevs=netdevs, members=members,
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defined=defined_names)
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if form.is_valid():
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data = form.cleaned_data
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try:
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with audit(request, compute, f"Interface {data['name']}", "add"):
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conn.create_iface(
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data["name"], data["itype"], data["start_mode"], data["netdev"],
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data["ipv4_type"], data["ipv4_addr"], data["ipv4_gw"],
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data["ipv6_type"], data["ipv6_addr"], data["ipv6_gw"],
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data["stp"], data["delay"],
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)
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except libvirtError as err: # shown in the dialog, which opens again
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form.add_error(None, str(err))
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else:
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return HttpResponseRedirect(reverse("interface", args=[compute_id, data["name"]]))
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conn.close()
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except libvirtError as lib_err:
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messages.error(request, lib_err)
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return render(request, "interfaces.html", locals())
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@superuser_only
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def interface(request, compute_id, iface):
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"""An interface of the host; started, stopped or deleted where the host's libvirt can."""
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compute = get_object_or_404(Compute, pk=compute_id)
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try:
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conn = wvmInterface(compute.hostname, compute.login, compute.password, compute.type, iface)
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changeable = conn.can_change_interfaces()
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# the page says why nothing is done on a host that cannot change interfaces
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if request.method == "POST" and changeable:
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here = reverse("interface", args=[compute_id, iface])
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subject = f"Interface {iface}"
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try:
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if "stop" in request.POST:
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with audit(request, compute, subject, "stop"):
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conn.stop_iface()
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return HttpResponseRedirect(here)
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if "start" in request.POST:
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with audit(request, compute, subject, "start"):
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conn.start_iface()
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return HttpResponseRedirect(here)
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if "delete" in request.POST:
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with audit(request, compute, subject, "delete"):
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conn.delete_iface()
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return HttpResponseRedirect(reverse("interfaces", args=[compute_id]))
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except libvirtError as err: # OperationError too: an active one, a bridge whose addresses go nowhere
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messages.error(request, err)
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return HttpResponseRedirect(here)
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info = conn.get_info()
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info["addressing"] = [("IPv4", info["ipv4"]), ("IPv6", info["ipv6"])]
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state = conn.is_active()
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networks = networks_by_device(conn.wvm).get(iface, [])
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if info["type"] == "bridge":
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vms = conn.get_vms(networks)
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vm_ids = dict(Instance.objects.filter(compute=compute, name__in=[vm["vm"] for vm in vms]).values_list("name", "id"))
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for vm in vms:
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vm["id"] = vm_ids.get(vm["vm"])
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conn.close()
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except libvirtError as lib_err:
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messages.error(request, lib_err)
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return render(request, "interface.html", locals())
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