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community.general/plugins/modules/xattr.py
2025-11-01 13:46:53 +01:00

237 lines
6.4 KiB
Python

#!/usr/bin/python
# Copyright (c) 2017, Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import annotations
DOCUMENTATION = r"""
module: xattr
short_description: Manage user defined extended attributes
description:
- Manages filesystem user defined extended attributes.
- Requires that extended attributes are enabled on the target filesystem and that the C(setfattr)/C(getfattr) utilities
are present.
extends_documentation_fragment:
- community.general.attributes
attributes:
check_mode:
support: full
diff_mode:
support: none
options:
path:
description:
- The full path of the file/object to get the facts of.
type: path
required: true
aliases: [name]
namespace:
description:
- Namespace of the named name/key.
type: str
default: user
key:
description:
- The name of a specific Extended attribute key to set/retrieve.
type: str
value:
description:
- The value to set the named name/key to, it automatically sets the O(state) to V(present).
type: str
state:
description:
- Defines which state you want to do.
- V(read) retrieves the current value for a O(key).
- V(present) sets O(path) to O(value), default if value is set.
- V(all) dumps all data.
- V(keys) retrieves all keys.
- V(absent) deletes the key.
type: str
choices: [absent, all, keys, present, read]
default: read
follow:
description:
- If V(true), dereferences symlinks and sets/gets attributes on symlink target, otherwise acts on symlink itself.
type: bool
default: true
author:
- Brian Coca (@bcoca)
"""
EXAMPLES = r"""
- name: Obtain the extended attributes of /etc/foo.conf
community.general.xattr:
path: /etc/foo.conf
- name: Set the key 'user.foo' to value 'bar'
community.general.xattr:
path: /etc/foo.conf
key: foo
value: bar
- name: Set the key 'trusted.glusterfs.volume-id' to value '0x817b94343f164f199e5b573b4ea1f914'
community.general.xattr:
path: /mnt/bricks/brick1
namespace: trusted
key: glusterfs.volume-id
value: "0x817b94343f164f199e5b573b4ea1f914"
- name: Remove the key 'user.foo'
community.general.xattr:
path: /etc/foo.conf
key: foo
state: absent
- name: Remove the key 'trusted.glusterfs.volume-id'
community.general.xattr:
path: /mnt/bricks/brick1
namespace: trusted
key: glusterfs.volume-id
state: absent
"""
import os
# import module snippets
from ansible.module_utils.basic import AnsibleModule
def get_xattr_keys(module, path, follow):
cmd = [module.get_bin_path("getfattr", True), "--absolute-names"]
if not follow:
cmd.append("-h")
cmd.append(path)
return _run_xattr(module, cmd)
def get_xattr(module, path, key, follow):
cmd = [module.get_bin_path("getfattr", True), "--absolute-names"]
if not follow:
cmd.append("-h")
if key is None:
cmd.append("-d")
else:
cmd.append("-n")
cmd.append(key)
cmd.append(path)
return _run_xattr(module, cmd, False)
def set_xattr(module, path, key, value, follow):
cmd = [module.get_bin_path("setfattr", True)]
if not follow:
cmd.append("-h")
cmd.append("-n")
cmd.append(key)
cmd.append("-v")
cmd.append(value)
cmd.append(path)
return _run_xattr(module, cmd)
def rm_xattr(module, path, key, follow):
cmd = [module.get_bin_path("setfattr", True)]
if not follow:
cmd.append("-h")
cmd.append("-x")
cmd.append(key)
cmd.append(path)
return _run_xattr(module, cmd, False)
def _run_xattr(module, cmd, check_rc=True):
try:
(rc, out, err) = module.run_command(cmd, check_rc=check_rc)
except Exception as e:
module.fail_json(msg=f"{e}!")
# result = {'raw': out}
result = {}
for line in out.splitlines():
if line.startswith("#") or line == "":
pass
elif "=" in line:
(key, val) = line.split("=", 1)
result[key] = val.strip('"')
else:
result[line] = ""
return result
def main():
module = AnsibleModule(
argument_spec=dict(
path=dict(type="path", required=True, aliases=["name"]),
namespace=dict(type="str", default="user"),
key=dict(type="str", no_log=False),
value=dict(type="str"),
state=dict(type="str", default="read", choices=["absent", "all", "keys", "present", "read"]),
follow=dict(type="bool", default=True),
),
supports_check_mode=True,
)
path = module.params.get("path")
namespace = module.params.get("namespace")
key = module.params.get("key")
value = module.params.get("value")
state = module.params.get("state")
follow = module.params.get("follow")
if not os.path.exists(path):
module.fail_json(msg="path not found or not accessible!")
changed = False
msg = ""
res = {}
if key is None and state in ["absent", "present"]:
module.fail_json(msg=f"{state} needs a key parameter")
# Prepend the key with the namespace if defined
if (
key is not None
and namespace is not None
and len(namespace) > 0
and not (namespace == "user" and key.startswith("user."))
):
key = f"{namespace}.{key}"
if state == "present" or value is not None:
current = get_xattr(module, path, key, follow)
if current is None or key not in current or value != current[key]:
if not module.check_mode:
res = set_xattr(module, path, key, value, follow)
changed = True
res = current
msg = f"{key} set to {value}"
elif state == "absent":
current = get_xattr(module, path, key, follow)
if current is not None and key in current:
if not module.check_mode:
res = rm_xattr(module, path, key, follow)
changed = True
res = current
msg = f"{key} removed"
elif state == "keys":
res = get_xattr_keys(module, path, follow)
msg = "returning all keys"
elif state == "all":
res = get_xattr(module, path, None, follow)
msg = "dumping all"
else:
res = get_xattr(module, path, key, follow)
msg = f"returning {key}"
module.exit_json(changed=changed, msg=msg, xattr=res)
if __name__ == "__main__":
main()