Extend authorized_keys module for use with alternate AuthorizedKeysFile configurations

pull/2503/head
Greg Swift 12 years ago
parent 9c5028eb8b
commit 34a38a74b1

@ -40,6 +40,17 @@ options:
- the SSH public key, as a string
required: true
default: null
path:
description:
- Alternate path to the authorized_keys file
required: false
default: "/home/user/.ssh/authorized_keys"
manage_dir:
description:
- Wheter this module should manage the directory of the authorized_keys file
required: false
choices: [ "yes", "no" ]
default: "yes"
state:
description:
- whether the given key should or should not be in the file
@ -51,6 +62,8 @@ examples:
description: "Example from Ansible Playbooks"
- code: "authorized_key: user=charlie key='$FILE(/home/charlie/.ssh/id_rsa.pub)'"
description: "Shorthand available in Ansible 0.8 and later"
- code: "authorized_key: user=charlie key='$FILE(/home/charlie/.ssh/id_rsa.pub)' sshdir='/etc/ssh/authorized_keys/charlie' manage_dir=no"
description: "Advanced usage with an alternate AuthorizedKeysFile configuration"
author: Brad Olson
'''
@ -60,6 +73,8 @@ author: Brad Olson
# =========
# user = username
# key = line to add to authorized_keys for user
# path = path to the user's authorized_keys file (default: ~/.ssh/authorized_keys)
# manage_dir = whether to create, and control ownership of the directory (default: true)
# state = absent|present (default: present)
#
# see example in examples/playbooks
@ -71,13 +86,15 @@ import os.path
import tempfile
import shutil
def keyfile(module, user, write=False):
def keyfile(module, user, write=False, path=None, manage_dir=True):
"""
Calculate name of authorized keys file, optionally creating the
directories and file, properly setting permissions.
:param str user: name of user in passwd file
:param bool write: if True, write changes to authorized_keys file (creating directories if needed)
:param str path: if not None, use provided path rather than default of '~user/.ssh/authorized_keys'
:param bool manage_dir: if True, create and set ownership of the parent dir of the authorized_keys file
:return: full path string to authorized_keys for user
"""
@ -85,9 +102,13 @@ def keyfile(module, user, write=False):
user_entry = pwd.getpwnam(user)
except KeyError, e:
module.fail_json(msg="Failed to lookup user %s: %s" % (user, str(e)))
homedir = user_entry.pw_dir
sshdir = os.path.join(homedir, ".ssh")
keysfile = os.path.join(sshdir, "authorized_keys")
if path is None:
homedir = user_entry.pw_dir
sshdir = os.path.join(homedir, ".ssh")
keysfile = os.path.join(sshdir, "authorized_keys")
else:
sshdir = os.path.dirname(path)
keysfile = path
if not write:
return keysfile
@ -95,12 +116,13 @@ def keyfile(module, user, write=False):
uid = user_entry.pw_uid
gid = user_entry.pw_gid
if not os.path.exists(sshdir):
os.mkdir(sshdir, 0700)
if module.selinux_enabled():
module.set_default_selinux_context(sshdir, False)
os.chown(sshdir, uid, gid)
os.chmod(sshdir, 0700)
if manage_dir in BOOLEANS_TRUE:
if not os.path.exists(sshdir):
os.mkdir(sshdir, 0700)
if module.selinux_enabled():
module.set_default_selinux_context(sshdir, False)
os.chown(sshdir, uid, gid)
os.chmod(sshdir, 0700)
if not os.path.exists( keysfile):
try:
@ -139,14 +161,17 @@ def enforce_state(module, params):
Add or remove key.
"""
user = params["user"]
key = params["key"]
state = params.get("state", "present")
user = params["user"]
key = params["key"]
path = params.get("path", None)
manage_dir = params.get("manage_dir", True)
state = params.get("state", "present")
key = key.split('\n')
# check current state -- just get the filename, don't create file
params["keyfile"] = keyfile(module, user, write=False)
write = False
params["keyfile"] = keyfile(module, user, write, path, manage_dir)
keys = readkeys(params["keyfile"])
# Check our new keys, if any of them exist we'll continue.
@ -157,14 +182,16 @@ def enforce_state(module, params):
if present:
continue
keys.append(new_key)
writekeys(module, keyfile(module, user,write=True), keys)
write = True
writekeys(module, keyfile(module, user, write, path, manage_dir), keys)
params['changed'] = True
elif state=="absent":
if not present:
continue
keys.remove(new_key)
writekeys(module, keyfile(module, user,write=True), keys)
write = True
writekeys(module, keyfile(module, user, write, path, manage_dir), keys)
params['changed'] = True
return params
@ -173,9 +200,11 @@ def main():
module = AnsibleModule(
argument_spec = dict(
user = dict(required=True),
key = dict(required=True),
state = dict(default='present', choices=['absent','present'])
user = dict(required=True, type='str'),
key = dict(required=True, type='str'),
path = dict(required=False, type='str'),
manage_dir = dict(required=False, type='bool', choices=BOOLEANS),
state = dict(default='present', choices=['absent','present'])
)
)

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