Add kube submodule
Antoine Legrand
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[submodule "library"]
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path = library
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url = git@github.com:ansibl8s/k8s-ansible-module.git
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Subproject commit def3a4da4fcfb76a2dd46eb9af678c716022d643
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309
library/kube.py
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library/kube.py
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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DOCUMENTATION = """
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---
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module: kube
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short_description: Manage Kubernetes Cluster
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description:
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- Create, replace, remove, and stop resources within a Kubernetes Cluster
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version_added: "2.0"
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options:
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name:
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required: false
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default: null
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description:
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- The name associated with resource
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filename:
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required: false
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default: null
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description:
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- The path and filename of the resource(s) definition file.
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namespace:
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required: false
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default: null
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description:
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- The namespace associated with the resource(s)
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resource:
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required: false
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default: null
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description:
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- The resource to perform an action on. pods (po), replicationControllers (rc), services (svc)
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label:
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required: false
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default: null
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description:
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- The labels used to filter specific resources.
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server:
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required: false
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default: null
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description:
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- The url for the API server that commands are executed against.
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api_version:
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required: false
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choices: ['v1', 'v1beta3']
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default: v1
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description:
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- The API version associated with cluster.
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force:
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required: false
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default: false
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description:
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- A flag to indicate to force delete, replace, or stop.
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all:
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required: false
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default: false
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description:
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- A flag to indicate delete all, stop all, or all namespaces when checking exists.
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log_level:
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required: false
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default: 0
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description:
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- Indicates the level of verbosity of logging by kubectl.
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state:
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required: false
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choices: ['present', 'absent', 'latest', 'reloaded', 'stopped']
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default: present
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description:
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- present handles checking existence or creating if definition file provided,
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absent handles deleting resource(s) based on other options,
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latest handles creating ore updating based on existence,
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reloaded handles updating resource(s) definition using definition file,
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stopped handles stopping resource(s) based on other options.
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requirements:
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- kubectl
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author: "Kenny Jones (@kenjones-cisco)"
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"""
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EXAMPLES = """
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- name: test nginx is present
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kube: name=nginx resource=rc state=present
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- name: test nginx is stopped
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kube: name=nginx resource=rc state=stopped
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- name: test nginx is absent
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kube: name=nginx resource=rc state=absent
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- name: test nginx is present
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kube: filename=/tmp/nginx.yml
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"""
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class KubeManager(object):
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def __init__(self, module):
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self.module = module
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self.base_cmd = [module.get_bin_path('kubectl', True)]
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self.api_version = module.params.get('api_version')
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if self.api_version:
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self.base_cmd.append('--api-version=' + self.api_version)
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if module.params.get('server'):
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self.base_cmd.append('--server=' + module.params.get('server'))
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if module.params.get('log_level'):
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self.base_cmd.append('--v=' + str(module.params.get('log_level')))
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if module.params.get('namespace'):
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self.base_cmd.append('--namespace=' + module.params.get('namespace'))
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self.all = module.params.get('all')
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self.force = module.params.get('force')
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self.name = module.params.get('name')
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self.filename = module.params.get('filename')
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self.resource = module.params.get('resource')
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self.label = module.params.get('label')
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def _execute(self, cmd):
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args = self.base_cmd + cmd
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try:
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rc, out, err = self.module.run_command(args)
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if rc != 0:
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self.module.fail_json(
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msg='error running kubectl (%s) command (rc=%d): %s' % (' '.join(args), rc, out or err))
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except Exception as exc:
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self.module.fail_json(
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msg='error running kubectl (%s) command: %s' % (' '.join(args), str(exc)))
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return out.splitlines()
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def _execute_nofail(self, cmd):
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args = self.base_cmd + cmd
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rc, out, err = self.module.run_command(args)
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if rc != 0:
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return None
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return out.splitlines()
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def create(self, check=True):
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if check and self.exists():
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return []
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cmd = ['create']
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if not self.filename:
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self.module.fail_json(msg='filename required to create')
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cmd.append('--filename=' + self.filename)
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return self._execute(cmd)
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def replace(self):
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if not self.force and not self.exists():
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return []
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cmd = ['replace']
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if self.api_version != 'v1':
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cmd = ['update']
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if self.force:
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cmd.append('--force')
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if not self.filename:
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self.module.fail_json(msg='filename required to reload')
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cmd.append('--filename=' + self.filename)
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return self._execute(cmd)
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def delete(self):
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if not self.force and not self.exists():
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return []
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cmd = ['delete']
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if self.filename:
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cmd.append('--filename=' + self.filename)
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else:
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if not self.resource:
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self.module.fail_json(msg='resource required to delete without filename')
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cmd.append(self.resource)
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if self.name:
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cmd.append(self.name)
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if self.label:
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cmd.append('--selector=' + self.label)
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if self.all:
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cmd.append('--all')
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if self.force:
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cmd.append('--ignore-not-found')
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return self._execute(cmd)
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def exists(self):
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cmd = ['get']
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if not self.resource:
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return False
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cmd.append(self.resource)
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if self.name:
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cmd.append(self.name)
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cmd.append('--no-headers')
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if self.label:
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cmd.append('--selector=' + self.label)
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if self.all:
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cmd.append('--all-namespaces')
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result = self._execute_nofail(cmd)
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if not result:
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return False
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return True
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def stop(self):
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if not self.force and not self.exists():
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return []
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cmd = ['stop']
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if self.filename:
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cmd.append('--filename=' + self.filename)
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else:
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if not self.resource:
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self.module.fail_json(msg='resource required to stop without filename')
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cmd.append(self.resource)
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if self.name:
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cmd.append(self.name)
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if self.label:
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cmd.append('--selector=' + self.label)
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if self.all:
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cmd.append('--all')
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if self.force:
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cmd.append('--ignore-not-found')
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return self._execute(cmd)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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name=dict(),
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filename=dict(),
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namespace=dict(),
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resource=dict(),
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label=dict(),
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server=dict(),
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api_version=dict(default='v1', choices=['v1', 'v1beta3']),
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force=dict(default=False, type='bool'),
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all=dict(default=False, type='bool'),
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log_level=dict(default=0, type='int'),
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state=dict(default='present', choices=['present', 'absent', 'latest', 'reloaded', 'stopped']),
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)
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)
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changed = False
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manager = KubeManager(module)
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state = module.params.get('state')
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if state == 'present':
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result = manager.create()
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elif state == 'absent':
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result = manager.delete()
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elif state == 'reloaded':
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result = manager.replace()
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elif state == 'stopped':
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result = manager.stop()
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elif state == 'latest':
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if manager.exists():
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manager.force = True
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result = manager.replace()
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else:
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result = manager.create(check=False)
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else:
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module.fail_json(msg='Unrecognized state %s.' % state)
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if result:
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changed = True
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module.exit_json(changed=changed,
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msg='success: %s' % (' '.join(result))
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)
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from ansible.module_utils.basic import * # noqa
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if __name__ == '__main__':
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main()
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