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proxmox_kvm: new function wait_for_task() (#831)

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Allows some factorization of redundant code in stop_vm(), start_vm(),
create_vm() and main().
This new function also waits one extra second after a successful task execution as the API can be a bit ahead of Proxmox.

Before:

    TASK [ansible-role-proxmox-instance : Ensure test-instance is created]
    changed: [localhost]

    TASK [ansible-role-proxmox-instance : Ensure test-instance is updated]
    fatal: [localhost]: FAILED! => changed=false
      msg: VM test-instance does not exist in cluster.

After:

    TASK [ansible-role-proxmox-instance : Ensure test-instance is created]
    changed: [localhost]

    TASK [ansible-role-proxmox-instance : Ensure test-instance is updated]
    changed: [localhost]

With suggestions from Felix Fontein <felix@fontein.de>.
This commit is contained in:
Tristan Le Guern 2020-09-08 13:11:37 +02:00 committed by GitHub
parent 6d60d3fa7f
commit 9a5fe4c9af
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 54 additions and 60 deletions
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3
changelogs/fragments/831-proxmox-kvm-wait.yml Normal file
View file

@ -0,0 +1,3 @@
---
bugfixes:
- proxmox_kvm - improve handling of long-running tasks by creating a dedicated function (https://github.com/ansible-collections/community.general/pull/831).

111
plugins/modules/cloud/misc/proxmox_kvm.py
View file

@ -709,7 +709,7 @@ def get_vminfo(module, proxmox, node, vmid, **kwargs):
results['vmid'] = int(vmid)
def settings(module, proxmox, vmid, node, name, timeout, **kwargs):
def settings(module, proxmox, vmid, node, name, **kwargs):
proxmox_node = proxmox.nodes(node)
# Sanitize kwargs. Remove not defined args and ensure True and False converted to int.
@ -721,7 +721,23 @@ def settings(module, proxmox, vmid, node, name, timeout, **kwargs):
return False
def create_vm(module, proxmox, vmid, newid, node, name, memory, cpu, cores, sockets, timeout, update, **kwargs):
def wait_for_task(module, proxmox, node, taskid):
timeout = module.params['timeout']
while timeout:
task = proxmox.nodes(node).tasks(taskid).status.get()
if task['status'] == 'stopped' and task['exitstatus'] == 'OK':
# Wait an extra second as the API can be a ahead of the hypervisor
time.sleep(1)
return True
timeout = timeout - 1
if timeout == 0:
break
time.sleep(1)
return False
def create_vm(module, proxmox, vmid, newid, node, name, memory, cpu, cores, sockets, update, **kwargs):
# Available only in PVE 4
only_v4 = ['force', 'protection', 'skiplock']
@ -795,48 +811,29 @@ def create_vm(module, proxmox, vmid, newid, node, name, memory, cpu, cores, sock
else:
taskid = getattr(proxmox_node, VZ_TYPE).create(vmid=vmid, name=name, memory=memory, cpu=cpu, cores=cores, sockets=sockets, **kwargs)
while timeout:
if (proxmox_node.tasks(taskid).status.get()['status'] == 'stopped' and
proxmox_node.tasks(taskid).status.get()['exitstatus'] == 'OK'):
return True
timeout = timeout - 1
if timeout == 0:
module.fail_json(msg='Reached timeout while waiting for creating VM. Last line in task before timeout: %s' %
proxmox_node.tasks(taskid).log.get()[:1])
time.sleep(1)
return False
if not wait_for_task(module, proxmox, node, taskid):
module.fail_json(msg='Reached timeout while waiting for creating VM. Last line in task before timeout: %s' %
proxmox_node.tasks(taskid).log.get()[:1])
return False
return True
def start_vm(module, proxmox, vm, vmid, timeout):
def start_vm(module, proxmox, vm, vmid):
taskid = getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.start.post()
while timeout:
if (proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['status'] == 'stopped' and
proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['exitstatus'] == 'OK'):
return True
timeout -= 1
if timeout == 0:
module.fail_json(msg='Reached timeout while waiting for starting VM. Last line in task before timeout: %s'
% proxmox.nodes(vm[0]['node']).tasks(taskid).log.get()[:1])
time.sleep(1)
return False
if not wait_for_task(module, proxmox, vm[0]['node'], taskid):
module.fail_json(msg='Reached timeout while waiting for starting VM. Last line in task before timeout: %s' %
proxmox.nodes(vm[0]['node']).tasks(taskid).log.get()[:1])
return False
return True
def stop_vm(module, proxmox, vm, vmid, timeout, force):
if force:
taskid = getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.shutdown.post(forceStop=1)
else:
taskid = getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.shutdown.post()
while timeout:
if (proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['status'] == 'stopped' and
proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['exitstatus'] == 'OK'):
return True
timeout -= 1
if timeout == 0:
module.fail_json(msg='Reached timeout while waiting for stopping VM. Last line in task before timeout: %s'
% proxmox.nodes(vm[0]['node']).tasks(taskid).log.get()[:1])
time.sleep(1)
return False
def stop_vm(module, proxmox, vm, vmid, force):
taskid = proxmox.nodes(vm[0]['node']).qemu(vmid).status.shutdown.post(forceStop=(1 if force else 0))
if not wait_for_task(module, proxmox, vm[0]['node'], taskid):
module.fail_json(msg='Reached timeout while waiting for stopping VM. Last line in task before timeout: %s' %
proxmox.nodes(vm[0]['node']).tasks(taskid).log.get()[:1])
return False
return True
def proxmox_version(proxmox):
@ -943,7 +940,6 @@ def main():
revert = module.params['revert']
sockets = module.params['sockets']
state = module.params['state']
timeout = module.params['timeout']
update = bool(module.params['update'])
vmid = module.params['vmid']
validate_certs = module.params['validate_certs']
@ -1004,14 +1000,14 @@ def main():
if delete is not None:
try:
settings(module, proxmox, vmid, node, name, timeout, delete=delete)
settings(module, proxmox, vmid, node, name, delete=delete)
module.exit_json(changed=True, msg="Settings has deleted on VM {0} with vmid {1}".format(name, vmid))
except Exception as e:
module.fail_json(msg='Unable to delete settings on VM {0} with vmid {1}: '.format(name, vmid) + str(e))
if revert is not None:
try:
settings(module, proxmox, vmid, node, name, timeout, revert=revert)
settings(module, proxmox, vmid, node, name, revert=revert)
module.exit_json(changed=True, msg="Settings has reverted on VM {0} with vmid {1}".format(name, vmid))
except Exception as e:
module.fail_json(msg='Unable to revert settings on VM {0} with vmid {1}: Maybe is not a pending task... '.format(name, vmid) + str(e))
@ -1027,7 +1023,7 @@ def main():
elif not node_check(proxmox, node):
module.fail_json(msg="node '%s' does not exist in cluster" % node)
create_vm(module, proxmox, vmid, newid, node, name, memory, cpu, cores, sockets, timeout, update,
create_vm(module, proxmox, vmid, newid, node, name, memory, cpu, cores, sockets, update,
acpi=module.params['acpi'],
agent=module.params['agent'],
autostart=module.params['autostart'],
@ -1111,7 +1107,7 @@ def main():
if getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.current.get()['status'] == 'running':
module.exit_json(changed=False, msg="VM %s is already running" % vmid)
if start_vm(module, proxmox, vm, vmid, timeout):
if start_vm(module, proxmox, vm, vmid):
module.exit_json(changed=True, msg="VM %s started" % vmid)
except Exception as e:
module.fail_json(msg="starting of VM %s failed with exception: %s" % (vmid, e))
@ -1128,7 +1124,7 @@ def main():
if getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.current.get()['status'] == 'stopped':
module.exit_json(changed=False, msg="VM %s is already stopped" % vmid)
if stop_vm(module, proxmox, vm, vmid, timeout, force=module.params['force']):
if stop_vm(module, proxmox, vm, vmid, force=module.params['force']):
module.exit_json(changed=True, msg="VM %s is shutting down" % vmid)
except Exception as e:
module.fail_json(msg="stopping of VM %s failed with exception: %s" % (vmid, e))
@ -1144,7 +1140,7 @@ def main():
if getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.current.get()['status'] == 'stopped':
module.exit_json(changed=False, msg="VM %s is not running" % vmid)
if stop_vm(module, proxmox, vm, vmid, timeout, force=module.params['force']) and start_vm(module, proxmox, vm, vmid, timeout):
if stop_vm(module, proxmox, vm, vmid, force=module.params['force']) and start_vm(module, proxmox, vm, vmid):
module.exit_json(changed=True, msg="VM %s is restarted" % vmid)
except Exception as e:
module.fail_json(msg="restarting of VM %s failed with exception: %s" % (vmid, e))
@ -1155,23 +1151,18 @@ def main():
if not vm:
module.exit_json(changed=False)
if getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE)(vmid).status.current.get()['status'] == 'running':
proxmox_node = proxmox.nodes(vm[0]['node'])
if getattr(proxmox_node, VZ_TYPE)(vmid).status.current.get()['status'] == 'running':
if module.params['force']:
stop_vm(module, proxmox, vm, vmid, timeout, True)
stop_vm(module, proxmox, vm, vmid, True)
else:
module.exit_json(changed=False, msg="VM %s is running. Stop it before deletion or use force=yes." % vmid)
taskid = getattr(proxmox.nodes(vm[0]['node']), VZ_TYPE).delete(vmid)
while timeout:
if (proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['status'] == 'stopped' and
proxmox.nodes(vm[0]['node']).tasks(taskid).status.get()['exitstatus'] == 'OK'):
module.exit_json(changed=True, msg="VM %s removed" % vmid)
timeout -= 1
if timeout == 0:
module.fail_json(msg='Reached timeout while waiting for removing VM. Last line in task before timeout: %s'
% proxmox.nodes(vm[0]['node']).tasks(taskid).log.get()[:1])
time.sleep(1)
taskid = getattr(proxmox_node, VZ_TYPE).delete(vmid)
if not wait_for_task(module, proxmox, vm[0]['node'], taskid):
module.fail_json(msg='Reached timeout while waiting for removing VM. Last line in task before timeout: %s' %
proxmox_node.tasks(taskid).log.get()[:1])
else:
module.exit_json(changed=True, msg="VM %s removed" % vmid)
except Exception as e:
module.fail_json(msg="deletion of VM %s failed with exception: %s" % (vmid, e))