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fix(instances): a timed-out root password or SSH key change says it may still be made

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When the guest agent does not answer a root password or SSH key change
in time, the command was already sent: the agent runs it when it
answers again. Measured: with the agent frozen the change failed with
"guest agent command timed out", and after it resumed, root's hash was
the one sent. The error now adds "The change may still be made when the
agent answers again." A failed synchronization sends no command and
gets no note.
This commit is contained in:
catborise 2026-10-25 17:45:18 +03:00
parent 37422d81b3
commit 890d82f44a
2 changed files with 34 additions and 2 deletions
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18
instances/views.py
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@ -869,6 +869,20 @@ def gstfsd_request(hostname, data):
AGENT_OR_SHUT_OFF = _("Shut the VM down, or start its QEMU guest agent, and try again")
# libvirt's value; bindings built against older libvirt (Ubuntu 24.04's) lack
# the name, and the code comes from the host's libvirtd
VIR_ERR_AGENT_COMMAND_TIMEOUT = 112
def access_error(request, err):
"""The error of a root password or SSH key change. A command that timed
out was sent to the agent, which still runs it when it answers again."""
text = error_text(request, err)
if isinstance(err, libvirtError) and err.get_error_code() == VIR_ERR_AGENT_COMMAND_TIMEOUT:
text += " " + _("The change may still be made when the agent answers again.")
return text
@require_POST
@serialize_instance_mutation
def set_root_pass(request, pk):
@ -890,7 +904,7 @@ def set_root_pass(request, pk):
else:
instance.proxy.set_user_password("root", passwd_hash)
except (util.OperationError, libvirtError) as err:
messages.error(request, error_text(request, err))
messages.error(request, access_error(request, err))
else:
messages.success(request, _("Reset root password"))
else:
@ -928,7 +942,7 @@ def add_public_key(request, pk):
else:
instance.proxy.add_authorized_key("root", publickey.keypublic)
except (util.OperationError, libvirtError) as err:
messages.error(request, error_text(request, err))
messages.error(request, access_error(request, err))
else:
messages.success(request, _("Installed new SSH public key %(keyname)s") % {
"keyname": publickey.keyname