mirror of https://github.com/ansible/ansible.git
new module: Configure LVM and NFS file systems for AIX (#30810)
* new module: AIX LVM file system and NFS This module creates, removes, mount and unmount LVM and NFS file system for AIX using /etc/filesystems. For LVM file systems is also possible to resize the file system. * better parameters options structure better parameters options structure * Improved file system resize returns Added better tratment for return codes for file system resize. When a resize is not possible because no enough space on lv or shrink is not allowed. * improved doc and creation file system return code - improved doc - creation file system return code 10 was treated. * Doc recomendations, dict result, line limit - Added doc recomendations - Changed return to dict results on main() - Using 159 columns for code limit * wrong changed return when file system is already Fixed wrong changed return when file system is already mounted. When the file system is already mounted the return for changed is False. * Fixed description and included playbook for tests - Fixed description - Included playbook for manual tests * Various small bits to get this merged ASAP * Rename test/legacy/aix_filesystem.yml to test/integration/targets/aix_filesystem/tasks/main.yml Move integration test to its proper location * Create aliases * Fix CI issuespull/50416/head
Kairo Araujo
6 years ago
committed by
Dag Wieers
parent
bb77bc54d5
commit
fc6d85e4cf
@ -0,0 +1,579 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2017, Kairo Araujo <kairo@kairo.eti.br>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {
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'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'
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}
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DOCUMENTATION = r'''
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---
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author:
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- Kairo Araujo (@kairoaraujo)
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module: aix_filesystem
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short_description: Configure LVM and NFS file systems for AIX
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description:
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- This module creates, removes, mount and unmount LVM and NFS file system for
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AIX using C(/etc/filesystems).
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- For LVM file systems is possible to resize a file system.
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version_added: '2.8'
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options:
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account_subsystem:
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description:
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- Specifies whether the file system is to be processed by the accounting subsystem.
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type: bool
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default: no
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attributes:
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description:
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- Specifies attributes for files system separated by comma.
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type: str
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default: agblksize='4096',isnapshot='no'
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auto_mount:
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description:
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- File system is automatically mounted at system restart.
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type: bool
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default: yes
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device:
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description:
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- Logical volume (LV) device name or remote export device to create a NFS file system.
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- It is used to create a file system on an already existing logical volume or the exported NFS file system.
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- If not mentioned a new logical volume name will be created following AIX standards (LVM).
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type: str
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fs_type:
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description:
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- Specifies the virtual file system type.
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type: str
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default: jfs2
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permissions:
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description:
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- Set file system permissions. C(rw) (read-write) or C(ro) (read-only).
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type: str
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choices: [ ro, rw ]
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default: rw
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mount_group:
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description:
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- Specifies the mount group.
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type: str
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filesystem:
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description:
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- Specifies the mount point, which is the directory where the file system will be mounted.
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type: str
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required: true
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nfs_server:
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description:
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- Specifies a Network File System (NFS) server.
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type: str
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rm_mount_point:
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description:
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- Removes the mount point directory when used with state C(absent).
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type: bool
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default: no
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size:
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description:
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- Specifies the file system size.
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- For already C(present) it will be resized.
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- 512-byte blocks, Megabytes or Gigabytes. If the value has M specified
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it will be in Megabytes. If the value has G specified it will be in
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Gigabytes.
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- If no M or G the value will be 512-byte blocks.
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- If "+" is specified in begin of value, the value will be added.
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- If "-" is specified in begin of value, the value will be removed.
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- If "+" or "-" is not specified, the total value will be the specified.
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- Size will respects the LVM AIX standards.
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type: str
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state:
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description:
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- Controls the file system state.
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- C(present) check if file system exists, creates or resize.
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- C(absent) removes existing file system if already C(unmounted).
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- C(mounted) checks if the file system is mounted or mount the file system.
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- C(unmounted) check if the file system is unmounted or unmount the file system.
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type: str
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required: true
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choices: [ absent, mounted, present, unmounted ]
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default: present
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vg:
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description:
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- Specifies an existing volume group (VG).
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type: str
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notes:
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- For more C(attributes), please check "crfs" AIX manual.
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'''
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EXAMPLES = r'''
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- name: Create filesystem in a previously defined logical volume.
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aix_filesystem:
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device: testlv
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filesystem: /testfs
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state: present
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- name: Creating NFS filesystem from nfshost.
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aix_filesystem:
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device: /home/ftp
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nfs_server: nfshost
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filesystem: /home/ftp
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state: present
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- name: Creating a new file system without a previously logical volume.
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aix_filesystem:
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filesystem: /newfs
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size: 1G
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state: present
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vg: datavg
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- name: Unmounting /testfs.
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aix_filesystem:
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filesystem: /testfs
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state: unmounted
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- name: Resizing /mksysb to +512M.
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aix_filesystem:
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filesystem: /mksysb
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size: +512M
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state: present
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- name: Resizing /mksysb to 11G.
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aix_filesystem:
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filesystem: /mksysb
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size: 11G
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state: present
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- name: Resizing /mksysb to -2G.
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aix_filesystem:
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filesystem: /mksysb
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size: -2G
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state: present
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- name: Remove NFS filesystem /home/ftp.
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aix_filesystem:
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filesystem: /home/ftp
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rm_mount_point: yes
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state: absent
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- name: Remove /newfs.
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aix_filesystem:
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filesystem: /newfs
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rm_mount_point: yes
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state: absent
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'''
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RETURN = r'''
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changed:
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description: Return changed for aix_filesystems actions as true or false.
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returned: always
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type: bool
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msg:
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description: Return message regarding the action.
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returned: always
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type: str
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'''
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.ismount import ismount
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import re
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def _fs_exists(module, filesystem):
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"""
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Check if file system already exists on /etc/filesystems.
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:param module: Ansible module.
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:param filesystem: filesystem name.
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:return: True or False.
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"""
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lsfs_cmd = module.get_bin_path('lsfs', True)
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rc, lsfs_out, err = module.run_command("%s -l %s" % (lsfs_cmd, filesystem))
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if rc == 1:
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if re.findall("No record matching", err):
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return False
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else:
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module.fail_json(msg="Failed to run lsfs.", rc=rc, err=err)
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else:
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return True
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def _check_nfs_device(module, nfs_host, device):
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"""
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Validate if NFS server is exporting the device (remote export).
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:param module: Ansible module.
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:param nfs_host: nfs_host parameter, NFS server.
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:param device: device parameter, remote export.
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:return: True or False.
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"""
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showmount_cmd = module.get_bin_path('showmount', True)
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rc, showmount_out, err = module.run_command(
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"%s -a %s" % (showmount_cmd, nfs_host))
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if rc != 0:
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module.fail_json(msg="Failed to run showmount.", rc=rc, err=err)
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else:
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showmount_data = showmount_out.splitlines()
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for line in showmount_data:
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if line.split(':')[1] == device:
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return True
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return False
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def _validate_vg(module, vg):
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"""
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Check the current state of volume group.
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:param module: Ansible module argument spec.
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:param vg: Volume Group name.
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:return: True (VG in varyon state) or False (VG in varyoff state) or
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None (VG does not exist), message.
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"""
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lsvg_cmd = module.get_bin_path('lsvg', True)
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rc, current_active_vgs, err = module.run_command("%s -o" % lsvg_cmd)
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if rc != 0:
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module.fail_json(msg="Failed executing %s command." % lsvg_cmd)
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rc, current_all_vgs, err = module.run_command("%s" % lsvg_cmd)
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if rc != 0:
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module.fail_json(msg="Failed executing %s command." % lsvg_cmd)
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if vg in current_all_vgs and vg not in current_active_vgs:
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msg = "Volume group %s is in varyoff state." % vg
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return False, msg
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elif vg in current_active_vgs:
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msg = "Volume group %s is in varyon state." % vg
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return True, msg
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else:
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msg = "Volume group %s does not exist." % vg
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return None, msg
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def resize_fs(module, filesystem, size):
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""" Resize LVM file system. """
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chfs_cmd = module.get_bin_path('chfs', True)
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if not module.check_mode:
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rc, chfs_out, err = module.run_command('%s -a size="%s" %s' % (chfs_cmd, size, filesystem))
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if rc == 28:
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changed = False
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return changed, chfs_out
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elif rc != 0:
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if re.findall('Maximum allocation for logical', err):
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changed = False
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return changed, err
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else:
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module.fail_json("Failed to run chfs.", rc=rc, err=err)
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else:
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if re.findall('The filesystem size is already', chfs_out):
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changed = False
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else:
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changed = True
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return changed, chfs_out
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else:
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changed = True
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msg = ''
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return changed, msg
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def create_fs(
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module, fs_type, filesystem, vg, device, size, mount_group, auto_mount,
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account_subsystem, permissions, nfs_server, attributes):
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""" Create LVM file system or NFS remote mount point. """
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attributes = ' -a '.join(attributes)
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# Parameters definition.
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account_subsys_opt = {
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True: '-t yes',
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False: '-t no'
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}
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if nfs_server is not None:
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auto_mount_opt = {
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True: '-A',
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False: '-a'
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}
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else:
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auto_mount_opt = {
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True: '-A yes',
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False: '-A no'
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}
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if size is None:
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size = ''
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else:
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size = "-a size=%s" % size
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if device is None:
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device = ''
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else:
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device = "-d %s" % device
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if vg is None:
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vg = ''
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else:
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vg_state, msg = _validate_vg(module, vg)
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if vg_state:
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vg = "-g %s" % vg
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else:
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changed = False
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return changed, msg
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if mount_group is None:
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mount_group = ''
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else:
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mount_group = "-u %s" % mount_group
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auto_mount = auto_mount_opt[auto_mount]
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account_subsystem = account_subsys_opt[account_subsystem]
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if nfs_server is not None:
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# Creates a NFS file system.
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mknfsmnt_cmd = module.get_bin_path('mknfsmnt', True)
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if not module.check_mode:
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rc, mknfsmnt_out, err = module.run_command('%s -f "%s" %s -h "%s" -t "%s" "%s" -w "bg"' % (
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mknfsmnt_cmd, filesystem, device, nfs_server, permissions, auto_mount))
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if rc != 0:
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module.fail_json(msg="Failed to run mknfsmnt.", rc=rc, err=err)
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else:
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changed = True
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msg = "NFS file system %s created." % filesystem
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return changed, msg
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else:
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changed = True
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msg = ''
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return changed, msg
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else:
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# Creates a LVM file system.
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crfs_cmd = module.get_bin_path('crfs', True)
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if not module.check_mode:
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rc, crfs_out, err = module.run_command(
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"%s -v %s -m %s %s %s %s %s %s -p %s %s -a %s" % (
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crfs_cmd, fs_type, filesystem, vg, device, mount_group, auto_mount, account_subsystem, permissions, size, attributes))
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if rc == 10:
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module.exit_json(
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msg="Using a existent previously defined logical volume, "
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"volume group needs to be empty. %s" % err)
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elif rc != 0:
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module.fail_json(msg="Failed to run crfs.", rc=rc, err=err)
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else:
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changed = True
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return changed, crfs_out
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else:
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changed = True
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msg = ''
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return changed, msg
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def remove_fs(module, filesystem, rm_mount_point):
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""" Remove an LVM file system or NFS entry. """
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# Command parameters.
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rm_mount_point_opt = {
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True: '-r',
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False: ''
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}
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rm_mount_point = rm_mount_point_opt[rm_mount_point]
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rmfs_cmd = module.get_bin_path('rmfs', True)
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if not module.check_mode:
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rc, rmfs_out, err = module.run_command("%s -r %s %s" % (rmfs_cmd, rm_mount_point, filesystem))
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if rc != 0:
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module.fail_json(msg="Failed to run rmfs.", rc=rc, err=err)
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else:
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changed = True
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msg = rmfs_out
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if not rmfs_out:
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msg = "File system %s removed." % filesystem
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return changed, msg
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else:
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changed = True
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msg = ''
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return changed, msg
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def mount_fs(module, filesystem):
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""" Mount a file system. """
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mount_cmd = module.get_bin_path('mount', True)
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if not module.check_mode:
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rc, mount_out, err = module.run_command(
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"%s %s" % (mount_cmd, filesystem))
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if rc != 0:
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module.fail_json("Failed to run mount.", rc=rc, err=err)
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else:
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changed = True
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msg = "File system %s mounted." % filesystem
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return changed, msg
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else:
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changed = True
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msg = ''
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return changed, msg
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def unmount_fs(module, filesystem):
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""" Unmount a file system."""
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unmount_cmd = module.get_bin_path('unmount', True)
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if not module.check_mode:
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rc, unmount_out, err = module.run_command("%s %s" % (unmount_cmd, filesystem))
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if rc != 0:
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module.fail_json("Failed to run unmount.", rc=rc, err=err)
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else:
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changed = True
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msg = "File system %s unmounted." % filesystem
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return changed, msg
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else:
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changed = True
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msg = ''
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return changed, msg
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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account_subsystem=dict(type='bool', default=False),
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attributes=dict(type='list', default=["agblksize='4096'", "isnapshot='no'"]),
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auto_mount=dict(type='bool', default=True),
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device=dict(type='str'),
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filesystem=dict(type='str', required=True),
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fs_type=dict(type='str', default='jfs2'),
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permissions=dict(type='str', default='rw', choices=['rw', 'ro']),
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mount_group=dict(type='str'),
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nfs_server=dict(type='str'),
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rm_mount_point=dict(type='bool', default=False),
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size=dict(type='str'),
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state=dict(type='str', default='present', choices=['absent', 'mounted', 'present', 'unmounted']),
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vg=dict(type='str'),
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),
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supports_check_mode=True,
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)
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account_subsystem = module.params['account_subsystem']
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attributes = module.params['attributes']
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auto_mount = module.params['auto_mount']
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device = module.params['device']
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fs_type = module.params['fs_type']
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permissions = module.params['permissions']
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mount_group = module.params['mount_group']
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filesystem = module.params['filesystem']
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nfs_server = module.params['nfs_server']
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rm_mount_point = module.params['rm_mount_point']
|
||||
size = module.params['size']
|
||||
state = module.params['state']
|
||||
vg = module.params['vg']
|
||||
|
||||
result = dict(
|
||||
changed=False,
|
||||
msg='',
|
||||
)
|
||||
|
||||
if state == 'present':
|
||||
fs_mounted = ismount(filesystem)
|
||||
fs_exists = _fs_exists(module, filesystem)
|
||||
|
||||
# Check if fs is mounted or exists.
|
||||
if fs_mounted or fs_exists:
|
||||
result['msg'] = "File system %s already exists." % filesystem
|
||||
result['changed'] = False
|
||||
|
||||
# If parameter size was passed, resize fs.
|
||||
if size is not None:
|
||||
result['changed'], result['msg'] = resize_fs(module, filesystem, size)
|
||||
|
||||
# If fs doesn't exist, create it.
|
||||
else:
|
||||
# Check if fs will be a NFS device.
|
||||
if nfs_server is not None:
|
||||
if device is None:
|
||||
result['msg'] = 'Parameter "device" is required when "nfs_server" is defined.'
|
||||
|
||||
module.fail_json(**result)
|
||||
|
||||
else:
|
||||
# Create a fs from NFS export.
|
||||
if _check_nfs_device(module, nfs_server, device):
|
||||
result['changed'], result['msg'] = create_fs(
|
||||
module, fs_type, filesystem, vg, device, size, mount_group, auto_mount, account_subsystem, permissions, nfs_server, attributes)
|
||||
|
||||
if device is None:
|
||||
if vg is None:
|
||||
|
||||
module.fail_json(**result)
|
||||
|
||||
else:
|
||||
# Create a fs from
|
||||
result['changed'], result['msg'] = create_fs(
|
||||
module, fs_type, filesystem, vg, device, size, mount_group, auto_mount, account_subsystem, permissions, nfs_server, attributes)
|
||||
|
||||
if device is not None and nfs_server is None:
|
||||
# Create a fs from a previously lv device.
|
||||
result['changed'], result['msg'] = create_fs(
|
||||
module, fs_type, filesystem, vg, device, size, mount_group, auto_mount, account_subsystem, permissions, nfs_server, attributes)
|
||||
|
||||
elif state == 'absent':
|
||||
if ismount(filesystem):
|
||||
result['msg'] = "File system %s mounted." % filesystem
|
||||
|
||||
else:
|
||||
fs_status = _fs_exists(module, filesystem)
|
||||
if not fs_status:
|
||||
result['msg'] = "File system %s does not exist." % filesystem
|
||||
else:
|
||||
result['changed'], result['msg'] = remove_fs(module, filesystem, rm_mount_point)
|
||||
|
||||
elif state == 'mounted':
|
||||
if ismount(filesystem):
|
||||
result['changed'] = False
|
||||
result['msg'] = "File system %s already mounted." % filesystem
|
||||
else:
|
||||
result['changed'], result['msg'] = mount_fs(module, filesystem)
|
||||
|
||||
elif state == 'unmounted':
|
||||
if not ismount(filesystem):
|
||||
result['changed'] = False
|
||||
result['msg'] = "File system %s already unmounted." % filesystem
|
||||
else:
|
||||
result['changed'], result['msg'] = unmount_fs(module, filesystem)
|
||||
|
||||
else:
|
||||
# Unreachable codeblock
|
||||
result['msg'] = "Unexpected state %s." % state
|
||||
module.fail_json(**result)
|
||||
|
||||
module.exit_json(**result)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
@ -0,0 +1 @@
|
||||
unsupported
|
||||
@ -0,0 +1,124 @@
|
||||
---
|
||||
- name: Testing aix_filesystem module.
|
||||
hosts: lpar24
|
||||
tasks:
|
||||
- name: Umounting /testfs
|
||||
aix_filesystem:
|
||||
filesystem: /testfs
|
||||
state: unmounted
|
||||
|
||||
- name: Removing /testfs
|
||||
aix_filesystem:
|
||||
filesystem: /testfs
|
||||
state: absent
|
||||
|
||||
- name: Creating a new file system
|
||||
aix_filesystem:
|
||||
filesystem: /newfs
|
||||
size: 1G
|
||||
state: present
|
||||
vg: datavg
|
||||
|
||||
# It requires a host (nfshost) exporting the NFS
|
||||
- name: Creating NFS filesystem from nfshost (Linux NFS server)
|
||||
aix_filesystem:
|
||||
device: /home/ftp
|
||||
nfs_server: nfshost
|
||||
filesystem: /nfs/ftp
|
||||
state: present
|
||||
|
||||
# It requires a volume group named datavg (next three actions)
|
||||
- name: Creating a logical volume testlv (aix_lvol module)
|
||||
aix_lvol:
|
||||
vg: datavg
|
||||
lv: testlv
|
||||
size: 2G
|
||||
state: present
|
||||
|
||||
- name: Create filesystem in a previously defined logical volume
|
||||
aix_filesystem:
|
||||
device: testlv
|
||||
filesystem: /testfs
|
||||
state: present
|
||||
|
||||
- name: Create an already existing filesystem using existing logical volume.
|
||||
aix_filesystem:
|
||||
vg: datavg
|
||||
device: mksysblv
|
||||
filesystem: /mksysb
|
||||
state: present
|
||||
|
||||
- name: Create a filesystem in a non-existing VG
|
||||
aix_filesystem:
|
||||
vg: nonexistvg
|
||||
filesystem: /newlv
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to 1G
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: 1G
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to +512M
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: +512M
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to 11G
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: 11G
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to 11G (already done)
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: 11G
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to -2G
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: -2G
|
||||
state: present
|
||||
|
||||
- name: Resizing /mksysb to 100G (no enought space)
|
||||
aix_filesystem:
|
||||
filesystem: /mksysb
|
||||
size: +100G
|
||||
state: present
|
||||
|
||||
- name: Unmount filesystem /home/ftp
|
||||
aix_filesystem:
|
||||
filesystem: /home/ftp
|
||||
state: unmounted
|
||||
|
||||
- name: Remove NFS filesystem /home/ftp
|
||||
aix_filesystem:
|
||||
filesystem: /home/ftp
|
||||
rm_mount_point: yes
|
||||
state: absent
|
||||
|
||||
- name: Mount filesystem /newfs
|
||||
aix_filesystem:
|
||||
filesystem: /newfs
|
||||
state: mounted
|
||||
|
||||
- name: Remove mounted /newfs
|
||||
aix_filesystem:
|
||||
filesystem: /newfs
|
||||
rm_mount_point: yes
|
||||
state: absent
|
||||
|
||||
- name: Umount /newfs
|
||||
aix_filesystem:
|
||||
filesystem: /newfs
|
||||
state: unmounted
|
||||
|
||||
- name: Remove /newfs
|
||||
aix_filesystem:
|
||||
filesystem: /newfs
|
||||
rm_mount_point: yes
|
||||
state: absent
|
||||
Loading…
Reference in New Issue