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Allow change kernel boot parameters of oVirt hosts (#20607)

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* cloud: ovirt: add override_display parameter

* cloud: ovirt: add kernel_params parameter

* cloud: ovirt: add reinstall state to ovirt_hosts module

* cloud: ovirt: wait before polling entity state
This commit is contained in:
Ondra Machacek 2017-01-25 15:17:32 +01:00 committed by Ryan Brown
parent ac527ef86f
commit 937fc1421b
2 changed files with 95 additions and 14 deletions
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6
lib/ansible/module_utils/ovirt.py
View file

@ -283,6 +283,9 @@ def wait(
if wait:
start = time.time()
while time.time() < start + timeout:
# Sleep for `poll_interval` seconds if none of the conditions apply:
time.sleep(float(poll_interval))
# Exit if the condition of entity is valid:
entity = get_entity(service)
if condition(entity):
@ -290,9 +293,6 @@ def wait(
elif fail_condition(entity):
raise Exception("Error while waiting on result state of the entity.")
# Sleep for `poll_interval` seconds if nor of the conditions apply:
time.sleep(float(poll_interval))
def __get_auth_dict():
OVIRT_URL = os.environ.get('OVIRT_URL')

103
lib/ansible/modules/cloud/ovirt/ovirt_hosts.py
View file

@ -59,7 +59,10 @@ options:
state:
description:
- "State which should a host to be in after successful completion."
choices: ['present', 'absent', 'maintenance', 'upgraded', 'started', 'restarted', 'stopped']
choices: [
'present', 'absent', 'maintenance', 'upgraded', 'started',
'restarted', 'stopped', 'reinstalled'
]
default: present
comment:
description:
@ -94,6 +97,23 @@ options:
description:
- "If True host will be forcibly moved to desired state."
default: False
override_display:
description:
- "Override the display address of all VMs on this host with specified address."
kernel_params:
description:
- "List of kernel boot parameters."
- "Following are most common kernel parameters used for host:"
- "Hostdev Passthrough & SR-IOV: intel_iommu=on"
- "Nested Virtualization: kvm-intel.nested=1"
- "Unsafe Interrupts: vfio_iommu_type1.allow_unsafe_interrupts=1"
- "PCI Reallocation: pci=realloc"
- "C(Note:)"
- "Modifying kernel boot parameters settings can lead to a host boot failure.
Please consult the product documentation before doing any changes."
- "Kernel boot parameters changes require host deploy and restart. The host needs
to be I(reinstalled) suceesfully and then to be I(rebooted) for kernel boot parameters
to be applied."
extends_documentation_fragment: ovirt
'''
@ -101,12 +121,14 @@ EXAMPLES = '''
# Examples don't contain auth parameter for simplicity,
# look at ovirt_auth module to see how to reuse authentication:
# Add host with username/password
# Add host with username/password supporting SR-IOV:
- ovirt_hosts:
cluster: Default
name: myhost
address: 10.34.61.145
password: secret
kernel_params:
- intel_iommu=on
# Add host using public key
- ovirt_hosts:
@ -171,13 +193,25 @@ class HostsModule(BaseModule):
priority=self._module.params['spm_priority'],
) if self._module.params['spm_priority'] else None,
override_iptables=self._module.params['override_iptables'],
display=otypes.Display(
address=self._module.params['override_display'],
) if self._module.params['override_display'] else None,
os=otypes.OperatingSystem(
custom_kernel_cmdline=' '.join(self._module.params['kernel_params']),
) if self._module.params['kernel_params'] else None,
)
def update_check(self, entity):
kernel_params = self._module.params.get('kernel_params')
return (
equal(self._module.params.get('comment'), entity.comment) and
equal(self._module.params.get('kdump_integration'), entity.kdump_status) and
equal(self._module.params.get('spm_priority'), entity.spm.priority)
equal(self._module.params.get('spm_priority'), entity.spm.priority) and
equal(self._module.params.get('override_display'), getattr(entity.display, 'address', None)) and
equal(
sorted(kernel_params) if kernel_params else None,
sorted(entity.os.custom_kernel_cmdline.split(' '))
)
)
def pre_remove(self, entity):
@ -189,7 +223,7 @@ class HostsModule(BaseModule):
)
def post_update(self, entity):
if entity.status != hoststate.UP:
if entity.status != hoststate.UP and self._module.params['state'] == 'present':
if not self._module.check_mode:
self._service.host_service(entity.id).activate()
self.changed = True
@ -209,9 +243,17 @@ def control_state(host_module):
if host is None:
return
state = host_module._module.params['state']
host_service = host_module._service.service(host.id)
if failed_state(host):
raise Exception("Not possible to manage host '%s'." % host.name)
# In case host is in INSTALL_FAILED status, we can reinstall it:
if hoststate.INSTALL_FAILED == host.status and state != 'reinstalled':
raise Exception(
"Not possible to manage host '%s' in state '%s'." % (
host.name,
host.status
)
)
elif host.status in [
hoststate.REBOOT,
hoststate.CONNECTING,
@ -235,7 +277,10 @@ def control_state(host_module):
def main():
argument_spec = ovirt_full_argument_spec(
state=dict(
choices=['present', 'absent', 'maintenance', 'upgraded', 'started', 'restarted', 'stopped'],
choices=[
'present', 'absent', 'maintenance', 'upgraded', 'started',
'restarted', 'stopped', 'reinstalled',
],
default='present',
),
name=dict(required=True),
@ -249,6 +294,8 @@ def main():
override_iptables=dict(default=None, type='bool'),
force=dict(default=False, type='bool'),
timeout=dict(default=600, type='int'),
override_display=dict(default=None),
kernel_params=dict(default=None, type='list'),
)
module = AnsibleModule(
argument_spec=argument_spec,
@ -269,12 +316,12 @@ def main():
control_state(hosts_module)
if state == 'present':
ret = hosts_module.create()
hosts_module.action(
ret['changed'] = hosts_module.action(
action='activate',
action_condition=lambda h: h.status == hoststate.MAINTENANCE,
wait_condition=lambda h: h.status == hoststate.UP,
fail_condition=failed_state,
)
)['changed'] or ret['changed']
elif state == 'absent':
ret = hosts_module.remove()
elif state == 'maintenance':
@ -284,6 +331,7 @@ def main():
wait_condition=lambda h: h.status == hoststate.MAINTENANCE,
fail_condition=failed_state,
)
ret['changed'] = hosts_module.create()['changed'] or ret['changed']
elif state == 'upgraded':
ret = hosts_module.action(
action='upgrade',
@ -300,19 +348,19 @@ def main():
fence_type='start',
)
elif state == 'stopped':
hosts_module.action(
ret = hosts_module.action(
action='deactivate',
action_condition=lambda h: h.status not in [hoststate.MAINTENANCE, hoststate.DOWN],
wait_condition=lambda h: h.status in [hoststate.MAINTENANCE, hoststate.DOWN],
fail_condition=failed_state,
)
ret = hosts_module.action(
ret['changed'] = hosts_module.action(
action='fence',
action_condition=lambda h: h.status != hoststate.DOWN,
wait_condition=lambda h: h.status == hoststate.DOWN,
fail_condition=failed_state,
fence_type='stop',
)
)['changed'] or ret['changed']
elif state == 'restarted':
ret = hosts_module.action(
action='fence',
@ -320,6 +368,39 @@ def main():
fail_condition=failed_state,
fence_type='restart',
)
elif state == 'reinstalled':
# Deactivate host if not in maintanence:
deactivate_changed = hosts_module.action(
action='deactivate',
action_condition=lambda h: h.status not in [hoststate.MAINTENANCE, hoststate.DOWN],
wait_condition=lambda h: h.status in [hoststate.MAINTENANCE, hoststate.DOWN],
fail_condition=failed_state,
)['changed']
# Reinstall host:
install_changed = hosts_module.action(
action='install',
action_condition=lambda h: h.status == hoststate.MAINTENANCE,
wait_condition=lambda h: h.status == hoststate.MAINTENANCE,
fail_condition=failed_state,
host=otypes.Host(
override_iptables=module.params['override_iptables'],
) if module.params['override_iptables'] else None,
root_password=module.params['password'],
ssh=otypes.Ssh(
authentication_method='publickey',
) if module.params['public_key'] else None,
)['changed']
# Activate host after reinstall:
ret = hosts_module.action(
action='activate',
action_condition=lambda h: h.status == hoststate.MAINTENANCE,
wait_condition=lambda h: h.status == hoststate.UP,
fail_condition=failed_state,
)
ret['changed'] = install_changed or deactivate_changed or ret['changed']
module.exit_json(**ret)
except Exception as e: