Collapse boilerplate code into change_instance_state function
This commit is contained in:
John Baublitz
parent
b5da9d190d
commit
e85c2f8253
1 changed files with 24 additions and 83 deletions
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@ -502,73 +502,21 @@ def create_instances(module, gce, instance_names):
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return (changed, instance_json_data, instance_names)
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def start_instances(module, gce, instance_names, zone_name):
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"""Starts a list of stopped instances.
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module: Ansible module object
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gce: authenticated GCE connection object
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instance_names: a list of instance names to start
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zone_name: the zone where the instances reside prior to termination
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Returns a dictionary of instance names that were started.
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"""
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changed = False
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started_instance_names = []
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for name in instance_names:
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inst = None
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try:
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inst = gce.ex_get_node(name, zone_name)
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except ResourceNotFoundError:
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pass
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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if inst and inst.state == libcloud.compute.types.NodeState.STOPPED:
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gce.ex_start_node(inst)
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started_instance_names.append(inst.name)
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changed = True
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return (changed, started_instance_names)
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def stop_instances(module, gce, instance_names, zone_name):
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"""Stops a list of instances.
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module: Ansible module object
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gce: authenticated GCE connection object
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instance_names: a list of instance names to stop
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zone_name: the zone where the instances reside prior to termination
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Returns a dictionary of instance names that were stopped.
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"""
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changed = False
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stopped_instance_names = []
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for name in instance_names:
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inst = None
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try:
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inst = gce.ex_get_node(name, zone_name)
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except ResourceNotFoundError:
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pass
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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if inst and inst.state == libcloud.compute.types.NodeState.RUNNING:
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gce.ex_stop_node(inst)
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stopped_instance_names.append(inst.name)
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changed = True
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return (changed, stopped_instance_names)
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def terminate_instances(module, gce, instance_names, zone_name):
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"""Terminates a list of instances.
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def change_instance_state(module, gce, instance_names, zone_name, state):
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"""Changes the state of a list of instances. For example,
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change from started to stopped, or started to absent.
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module: Ansible module object
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gce: authenticated GCE connection object
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instance_names: a list of instance names to terminate
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zone_name: the zone where the instances reside prior to termination
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state: 'state' parameter passed into module as argument
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Returns a dictionary of instance names that were terminated.
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Returns a dictionary of instance names that were changed.
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"""
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changed = False
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terminated_instance_names = []
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changed_instance_names = []
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for name in instance_names:
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inst = None
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try:
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@ -577,13 +525,22 @@ def terminate_instances(module, gce, instance_names, zone_name):
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pass
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except Exception as e:
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module.fail_json(msg=unexpected_error_msg(e), changed=False)
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if inst:
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if inst and state in ['absent', 'deleted']:
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gce.destroy_node(inst)
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terminated_instance_names.append(inst.name)
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changed_instance_names.append(inst.name)
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changed = True
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elif inst and state == 'started' and \
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inst.state == libcloud.compute.types.NodeState.STOPPED:
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gce.ex_start_node(inst)
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changed_instance_names.append(inst.name)
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changed = True
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elif inst and state in ['stopped', 'terminated'] and \
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inst.state == libcloud.compute.types.NodeState.RUNNING:
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gce.ex_stop_node(inst)
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changed_instance_names.append(inst.name)
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changed = True
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return (changed, terminated_instance_names)
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return (changed, changed_instance_names)
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def main():
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module = AnsibleModule(
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@ -658,15 +615,15 @@ def main():
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changed=False)
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json_output = {'zone': zone}
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if state in ['absent', 'deleted']:
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json_output['state'] = 'absent'
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(changed, terminated_instance_names) = terminate_instances(
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module, gce, inames, zone)
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if state in ['absent', 'deleted', 'started', 'stopped', 'terminated']:
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json_output['state'] = state
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(changed, changed_instance_names) = change_instance_state(
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module, gce, inames, zone, state)
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# based on what user specified, return the same variable, although
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# value could be different if an instance could not be destroyed
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if instance_names:
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json_output['instance_names'] = terminated_instance_names
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json_output['instance_names'] = changed_instance_names
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elif name:
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json_output['name'] = name
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@ -680,22 +637,6 @@ def main():
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elif name:
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json_output['name'] = name
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elif state in ['started']:
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json_output['state'] = 'started'
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(changed, started_instance_names) = start_instances(module, gce, inames, zone)
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if instance_names:
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json_output['instance_names'] = started_instance_names
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elif name:
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json_output['name'] = name
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elif state in ['stopped', 'terminated']:
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json_output['state'] = 'stopped'
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(changed, stopped_instance_names) = stop_instances(module, gce, inames, zone)
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if instance_names:
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json_output['instance_names'] = stopped_instance_names
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elif name:
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json_output['name'] = name
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json_output['changed'] = changed
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module.exit_json(**json_output)
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