# Copyright 2020, Red Hat, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from __future__ import absolute_import, division, print_function __metaclass__ = type from ansible.module_utils.basic import AnsibleModule import datetime import json import os ANSIBLE_METADATA = { 'metadata_version': '1.1', 'status': ['preview'], 'supported_by': 'community' } DOCUMENTATION = ''' --- module: ceph_fs short_description: Manage Ceph File System version_added: "2.8" description: - Manage Ceph File System(s) creation, deletion and updates. options: cluster: description: - The ceph cluster name. required: false default: ceph name: description: - name of the Ceph File System. required: true state: description: If 'present' is used, the module creates a filesystem if it doesn't exist or update it if it already exists. If 'absent' is used, the module will simply delete the filesystem. If 'info' is used, the module will return all details about the existing filesystem (json formatted). required: false choices: ['present', 'absent', 'info'] default: present data: description: - name of the data pool. required: false metadata: description: - name of the metadata pool. required: false max_mds: description: - name of the max_mds attribute. required: false author: - Dimitri Savineau ''' EXAMPLES = ''' - name: create a Ceph File System ceph_fs: name: foo data: bar_data metadata: bar_metadata max_mds: 2 - name: get a Ceph File System information ceph_fs: name: foo state: info - name: delete a Ceph File System ceph_fs: name: foo state: absent ''' RETURN = '''# ''' def container_exec(binary, container_image): ''' Build the docker CLI to run a command inside a container ''' container_binary = os.getenv('CEPH_CONTAINER_BINARY') command_exec = [container_binary, 'run', '--rm', '--net=host', '-v', '/etc/ceph:/etc/ceph:z', '-v', '/var/lib/ceph/:/var/lib/ceph/:z', '-v', '/var/log/ceph/:/var/log/ceph/:z', '--entrypoint=' + binary, container_image] return command_exec def is_containerized(): ''' Check if we are running on a containerized cluster ''' if 'CEPH_CONTAINER_IMAGE' in os.environ: container_image = os.getenv('CEPH_CONTAINER_IMAGE') else: container_image = None return container_image def pre_generate_ceph_cmd(container_image=None): ''' Generate ceph prefix comaand ''' if container_image: cmd = container_exec('ceph', container_image) else: cmd = ['ceph'] return cmd def generate_ceph_cmd(cluster, args, container_image=None): ''' Generate 'ceph' command line to execute ''' cmd = pre_generate_ceph_cmd(container_image=container_image) base_cmd = [ '--cluster', cluster, 'fs' ] cmd.extend(base_cmd + args) return cmd def exec_commands(module, cmd): ''' Execute command(s) ''' rc, out, err = module.run_command(cmd) return rc, cmd, out, err def create_fs(module, container_image=None): ''' Create a new fs ''' cluster = module.params.get('cluster') name = module.params.get('name') data = module.params.get('data') metadata = module.params.get('metadata') args = ['new', name, metadata, data] cmd = generate_ceph_cmd(cluster=cluster, args=args, container_image=container_image) return cmd def get_fs(module, container_image=None): ''' Get existing fs ''' cluster = module.params.get('cluster') name = module.params.get('name') args = ['get', name, '--format=json'] cmd = generate_ceph_cmd(cluster=cluster, args=args, container_image=container_image) return cmd def remove_fs(module, container_image=None): ''' Remove a fs ''' cluster = module.params.get('cluster') name = module.params.get('name') args = ['rm', name, '--yes-i-really-mean-it'] cmd = generate_ceph_cmd(cluster=cluster, args=args, container_image=container_image) return cmd def fail_fs(module, container_image=None): ''' Fail a fs ''' cluster = module.params.get('cluster') name = module.params.get('name') args = ['fail', name] cmd = generate_ceph_cmd(cluster=cluster, args=args, container_image=container_image) return cmd def set_fs(module, container_image=None): ''' Set parameter to a fs ''' cluster = module.params.get('cluster') name = module.params.get('name') max_mds = module.params.get('max_mds') args = ['set', name, 'max_mds', str(max_mds)] cmd = generate_ceph_cmd(cluster=cluster, args=args, container_image=container_image) return cmd def exit_module(module, out, rc, cmd, err, startd, changed=False): endd = datetime.datetime.now() delta = endd - startd result = dict( cmd=cmd, start=str(startd), end=str(endd), delta=str(delta), rc=rc, stdout=out.rstrip("\r\n"), stderr=err.rstrip("\r\n"), changed=changed, ) module.exit_json(**result) def run_module(): module_args = dict( cluster=dict(type='str', required=False, default='ceph'), name=dict(type='str', required=True), state=dict(type='str', required=False, choices=['present', 'absent', 'info'], default='present'), # noqa: E501 data=dict(type='str', required=False), metadata=dict(type='str', required=False), max_mds=dict(type='int', required=False), ) module = AnsibleModule( argument_spec=module_args, supports_check_mode=True, required_if=[['state', 'present', ['data', 'metadata']]], ) # Gather module parameters in variables name = module.params.get('name') state = module.params.get('state') max_mds = module.params.get('max_mds') if module.check_mode: module.exit_json( changed=False, stdout='', stderr='', rc=0, start='', end='', delta='', ) startd = datetime.datetime.now() changed = False # will return either the image name or None container_image = is_containerized() if state == "present": rc, cmd, out, err = exec_commands(module, get_fs(module, container_image=container_image)) # noqa: E501 if rc == 0: fs = json.loads(out) if max_mds and fs["mdsmap"]["max_mds"] != max_mds: rc, cmd, out, err = exec_commands(module, set_fs(module, container_image=container_image)) # noqa: E501 if rc == 0: changed = True else: rc, cmd, out, err = exec_commands(module, create_fs(module, container_image=container_image)) # noqa: E501 if max_mds and max_mds > 1: exec_commands(module, set_fs(module, container_image=container_image)) # noqa: E501 if rc == 0: changed = True elif state == "absent": rc, cmd, out, err = exec_commands(module, get_fs(module, container_image=container_image)) # noqa: E501 if rc == 0: exec_commands(module, fail_fs(module, container_image=container_image)) # noqa: E501 rc, cmd, out, err = exec_commands(module, remove_fs(module, container_image=container_image)) # noqa: E501 if rc == 0: changed = True else: rc = 0 out = "Ceph File System {} doesn't exist".format(name) elif state == "info": rc, cmd, out, err = exec_commands(module, get_fs(module, container_image=container_image)) # noqa: E501 exit_module(module=module, out=out, rc=rc, cmd=cmd, err=err, startd=startd, changed=changed) # noqa: E501 def main(): run_module() if __name__ == '__main__': main()