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"""
Ansible action plugin to generate pv and pvc dictionaries lists
"""
from ansible.plugins.action import ActionBase
from ansible import errors
class ActionModule(ActionBase):
"""Action plugin to execute health checks."""
def get_templated(self, var_to_template):
"""Return a properly templated ansible variable"""
return self._templar.template(self.task_vars.get(var_to_template))
def build_common(self, varname=None):
"""Retrieve common variables for each pv and pvc type"""
volume = self.get_templated(str(varname) + '_volume_name')
size = self.get_templated(str(varname) + '_volume_size')
labels = self.task_vars.get(str(varname) + '_labels')
if labels:
labels = self._templar.template(labels)
else:
labels = dict()
access_modes = self.get_templated(str(varname) + '_access_modes')
return (volume, size, labels, access_modes)
def build_pv_nfs(self, varname=None):
"""Build pv dictionary for nfs storage type"""
host = self.task_vars.get(str(varname) + '_host')
if host:
self._templar.template(host)
elif host is None:
groups = self.task_vars.get('groups')
default_group_name = self.get_templated('openshift_persistent_volumes_default_nfs_group')
if groups and default_group_name and default_group_name in groups and len(groups[default_group_name]) > 0:
host = groups['oo_nfs_to_config'][0]
else:
raise errors.AnsibleModuleError("|failed no storage host detected")
volume, size, labels, access_modes = self.build_common(varname=varname)
directory = self.get_templated(str(varname) + '_nfs_directory')
path = directory + '/' + volume
return dict(
name="{0}-volume".format(volume),
capacity=size,
labels=labels,
access_modes=access_modes,
storage=dict(
nfs=dict(
server=host,
path=path)))
def build_pv_openstack(self, varname=None):
"""Build pv dictionary for openstack storage type"""
volume, size, labels, access_modes = self.build_common(varname=varname)
filesystem = self.get_templated(str(varname) + '_openstack_filesystem')
volume_id = self.get_templated(str(varname) + '_openstack_volumeID')
return dict(
name="{0}-volume".format(volume),
capacity=size,
labels=labels,
access_modes=access_modes,
storage=dict(
cinder=dict(
fsType=filesystem,
volumeID=volume_id)))
def build_pv_glusterfs(self, varname=None):
"""Build pv dictionary for glusterfs storage type"""
volume, size, labels, access_modes = self.build_common(varname=varname)
endpoints = self.get_templated(str(varname) + '_glusterfs_endpoints')
path = self.get_templated(str(varname) + '_glusterfs_path')
read_only = self.get_templated(str(varname) + '_glusterfs_readOnly')
return dict(
name="{0}-volume".format(volume),
capacity=size,
labels=labels,
access_modes=access_modes,
storage=dict(
glusterfs=dict(
endpoints=endpoints,
path=path,
readOnly=read_only)))
def build_pv_dict(self, varname=None):
"""Check for the existence of PV variables"""
kind = self.task_vars.get(str(varname) + '_kind')
if kind:
kind = self._templar.template(kind)
create_pv = self.task_vars.get(str(varname) + '_create_pv')
if create_pv and self._templar.template(create_pv):
if kind == 'nfs':
return self.build_pv_nfs(varname=varname)
elif kind == 'openstack':
return self.build_pv_openstack(varname=varname)
elif kind == 'glusterfs':
return self.build_pv_glusterfs(varname=varname)
elif not (kind == 'object' or kind == 'dynamic'):
msg = "|failed invalid storage kind '{0}' for component '{1}'".format(
kind,
varname)
raise errors.AnsibleModuleError(msg)
return None
def build_pvc_dict(self, varname=None):
"""Check for the existence of PVC variables"""
kind = self.task_vars.get(str(varname) + '_kind')
if kind:
kind = self._templar.template(kind)
create_pv = self.task_vars.get(str(varname) + '_create_pv')
if create_pv:
create_pv = self._templar.template(create_pv)
create_pvc = self.task_vars.get(str(varname) + '_create_pvc')
if create_pvc:
create_pvc = self._templar.template(create_pvc)
if kind != 'object' and create_pv and create_pvc:
volume, size, _, access_modes = self.build_common(varname=varname)
storageclass = self.task_vars.get(str(varname) + '_storageclass')
if storageclass:
storageclass = self._templar.template(storageclass)
elif storageclass is None and kind != 'dynamic':
storageclass = ''
return dict(
name="{0}-claim".format(volume),
capacity=size,
access_modes=access_modes,
storageclass=storageclass)
return None
def run(self, tmp=None, task_vars=None):
"""Run generate_pv_pvcs_list action plugin"""
result = super(ActionModule, self).run(tmp, task_vars)
# Ignore settting self.task_vars outside of init.
# pylint: disable=W0201
self.task_vars = task_vars or {}
result["changed"] = False
result["failed"] = False
result["msg"] = "persistent_volumes list and persistent_volume_claims list created"
vars_to_check = ['openshift_hosted_registry_storage',
'openshift_hosted_router_storage',
'openshift_hosted_etcd_storage',
'openshift_logging_storage',
'openshift_loggingops_storage',
'openshift_metrics_storage',
'openshift_prometheus_storage',
'openshift_prometheus_alertmanager_storage',
'openshift_prometheus_alertbuffer_storage']
persistent_volumes = []
persistent_volume_claims = []
for varname in vars_to_check:
pv_dict = self.build_pv_dict(varname)
if pv_dict:
persistent_volumes.append(pv_dict)
pvc_dict = self.build_pvc_dict(varname)
if pvc_dict:
persistent_volume_claims.append(pvc_dict)
result["persistent_volumes"] = persistent_volumes
result["persistent_volume_claims"] = persistent_volume_claims
return result
|
