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Merge pull request #669 from nix85/fix_mount_mod
Standardizing the mount module
This commit is contained in:
Michael DeHaan
commit
432dae769e
1 changed files with 105 additions and 136 deletions
241
library/mount
241
library/mount
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@ -19,18 +19,6 @@
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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try:
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import json
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except ImportError:
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import simplejson as json
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import os
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import os.path
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import shlex
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import subprocess
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import sys
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import syslog
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#mount module - mount fs and define in fstab
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#usage:
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# mount name=mountpoint, src=device_to_be_mounted fstype=fstype opts=mount_opts, dump=0 passno=0 state=[present|absent|mounted|unmounted]
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@ -39,14 +27,6 @@ import syslog
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# mounted == add to fstab if not there and make sure it is mounted
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# unmounted == do not change fstab state, but unmount
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def exit_json(rc=0, **kwargs):
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print json.dumps(kwargs)
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sys.exit(rc)
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def fail_json(**kwargs):
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kwargs['failed'] = True
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exit_json(rc=1, **kwargs)
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def write_fstab(lines, dest):
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fs_w = open(dest, 'w')
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@ -59,10 +39,12 @@ def write_fstab(lines, dest):
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def set_mount(**kwargs):
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"set/change a mount point location in fstab"
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# kwargs: name, src, fstype, opts, dump, passno, state, fstab=/etc/fstab
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args = { 'opts':'defaults',
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'dump':'0',
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'passno':'0',
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'fstab':'/etc/fstab' }
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args = {
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'opts': 'defaults',
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'dump': '0',
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'passno': '0',
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'fstab': '/etc/fstab'
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}
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args.update(kwargs)
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new_line = '%(src)s %(name)s %(fstype)s %(opts)s %(dump)s %(passno)s\n'
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@ -116,10 +98,12 @@ def set_mount(**kwargs):
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def unset_mount(**kwargs):
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"remove a mount point from fstab"
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# kwargs: name, src, fstype, opts, dump, passno, state, fstab=/etc/fstab
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args = { 'opts':'default',
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'dump':'0',
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'passno':'0',
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'fstab':'/etc/fstab' }
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args = {
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'opts': 'default',
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'dump': '0',
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'passno': '0',
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'fstab': '/etc/fstab'
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}
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args.update(kwargs)
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to_write = []
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@ -166,10 +150,11 @@ def mount(**kwargs):
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if call.returncode == 0:
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return 0, ''
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else:
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return call.rc, out+err
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return call.returncode, out+err
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def umount(**kwargs):
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"unmount a path"
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name = kwargs['name']
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cmd = ['/bin/umount', name]
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call = subprocess.Popen(cmd, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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@ -177,117 +162,101 @@ def umount(**kwargs):
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if call.returncode == 0:
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return 0, ''
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else:
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return call.rc, out+err
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return call.returncode, out+err
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argfile = sys.argv[1]
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args = open(argfile, 'r').read()
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items = shlex.split(args)
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syslog.openlog('ansible-%s' % os.path.basename(__file__))
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syslog.syslog(syslog.LOG_NOTICE, 'Invoked with %s' % args)
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if not len(items):
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fail_json(msg='the module requires arguments -a')
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sys.exit(1)
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params = {}
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for x in items:
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(k, v) = x.split("=",1)
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params[k] = v
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state = params.get('state',None)
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name = params.get('name', None)
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opts = params.get('opts', None)
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passno = params.get('passno', None)
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dump = params.get('dump', None)
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src = params.get('src', None)
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fstype = params.get('fstype', None)
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fstab = params.get('fstab', None)
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if state not in [ 'present', 'absent', 'mounted', 'unmounted' ]:
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fail_json(msg='invalid state')
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if not name:
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fail_json(msg='no name option given')
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if not src:
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fail_json(msg='no src option given')
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if not fstype:
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fail_json(msg='no fstype option given')
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changed = False
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rc = 0
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args = {'name':name,
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'src':src,
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'fstype':fstype }
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if passno is not None:
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args['passno'] = passno
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if opts is not None:
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args['opts'] = opts
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if dump is not None:
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args['dump'] = dump
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if fstab is not None:
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args['fstab'] = fstab
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# absent == remove from fstab and unmounted
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# unmounted == do not change fstab state, but unmount
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# present == add to fstab, do not change mount state
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# mounted == add to fstab if not there and make sure it is mounted, if it has changed in fstab then remount it
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if state == 'absent':
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name, changed = unset_mount(**args)
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if changed:
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(required=True, choices=['present', 'absent', 'mounted', 'unmounted']),
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name = dict(required=True),
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opts = dict(default=None),
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passno = dict(default=None),
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dump = dict(default=None),
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src = dict(required=True),
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fstype = dict(required=True),
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fstab = dict(default=None)
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)
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)
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changed = False
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rc = 0
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args = {
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'name': module.params['name'],
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'src': module.params['src'],
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'fstype': module.params['fstype']
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}
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if module.params['passno'] is not None:
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args['passno'] = module.params['passno']
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if module.params['opts'] is not None:
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args['opts'] = module.params['opts']
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if module.params['dump'] is not None:
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args['dump'] = module.params['dump']
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if module.params['fstab'] is not None:
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args['fstab'] = module.params['fstab']
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# absent == remove from fstab and unmounted
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# unmounted == do not change fstab state, but unmount
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# present == add to fstab, do not change mount state
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# mounted == add to fstab if not there and make sure it is mounted, if it has changed in fstab then remount it
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state = module.params['state']
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name = module.params['name']
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if state == 'absent':
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name, changed = unset_mount(**args)
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if changed:
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if os.path.ismount(name):
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res,msg = umount(**args)
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if res:
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fail_json(msg="Error unmounting %s: %s" % (name, msg))
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if os.path.exists(name):
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try:
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os.rmdir(name)
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except (OSError, IOError), e:
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fail_json(msg="Error rmdir %s: %s" % (name, str(e)))
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module.exit_json(changed=changed, **args)
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if state == 'unmounted':
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if os.path.ismount(name):
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res,msg = umount(**args)
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if res:
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fail_json(msg="Error unmounting %s: %s" % (name, msg))
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if os.path.exists(name):
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try:
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os.rmdir(name)
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except (OSError, IOError), e:
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fail_json(msg="Error rmdir %s: %s" % (name, str(e)))
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exit_json(changed=changed, **args)
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if state == 'unmounted':
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if os.path.ismount(name):
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res,msg = umount(**args)
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if res:
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fail_json(msg="Error unmounting %s: %s" % (name, msg))
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changed = True
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exit_json(changed=changed, **args)
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if state in ['mounted', 'present']:
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name, changed = set_mount(**args)
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if state == 'mounted':
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if not os.path.exists(name):
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try:
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os.makedirs(name)
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except (OSError, IOError), e:
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fail_json(msg="Error making dir %s: %s" % (name, str(e)))
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res = 0
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if os.path.ismount(name):
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if changed:
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res,msg = mount(**args)
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else:
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changed = True
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res,msg = mount(**args)
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module.exit_json(changed=changed, **args)
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if state in ['mounted', 'present']:
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name, changed = set_mount(**args)
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if state == 'mounted':
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if not os.path.exists(name):
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try:
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os.makedirs(name)
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except (OSError, IOError), e:
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fail_json(msg="Error making dir %s: %s" % (name, str(e)))
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res = 0
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if os.path.ismount(name):
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if changed:
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res,msg = mount(**args)
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else:
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changed = True
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res,msg = mount(**args)
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if res:
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fail_json(msg="Error mounting %s: %s" % (name, msg))
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module.exit_json(changed=changed, **args)
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module.fail_json(msg='Unexpected position reached')
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sys.exit(0)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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if res:
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fail_json(msg="Error mounting %s: %s" % (name, msg))
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exit_json(changed=changed, **args)
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fail_json(msg='Unexpected position reached')
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sys.exit(0)
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main()
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