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made special treatment of certain filesystem for selinux configurable

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This commit is contained in:
Brian Coca 2015-05-14 10:50:22 -04:00
parent 8a26b17f16
commit e2de336a23
5 changed files with 32 additions and 15 deletions
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5
examples/ansible.cfg
View file

@ -223,3 +223,8 @@ accelerate_daemon_timeout = 30
# is "no".
#accelerate_multi_key = yes
[selinux]
# file systems that require special treatment when dealing with security context
# the default behaviour that copies the existing context or uses the user default
# needs to be changed to use the file system dependant context.
#special_context_filesystems=nfs,vboxsf,fuse

5
lib/ansible/constants.py
View file

@ -134,7 +134,10 @@ DEFAULT_SU_FLAGS = get_config(p, DEFAULTS, 'su_flags', 'ANSIBLE_SU_FLAG
DEFAULT_SU_USER = get_config(p, DEFAULTS, 'su_user', 'ANSIBLE_SU_USER', 'root')
DEFAULT_ASK_SU_PASS = get_config(p, DEFAULTS, 'ask_su_pass', 'ANSIBLE_ASK_SU_PASS', False, boolean=True)
DEFAULT_GATHERING = get_config(p, DEFAULTS, 'gathering', 'ANSIBLE_GATHERING', 'implicit').lower()
DEFAULT_LOG_PATH = shell_expand_path(get_config(p, DEFAULTS, 'log_path', 'ANSIBLE_LOG_PATH', ''))
DEFAULT_LOG_PATH = shell_expand_path(get_config(p, DEFAULTS, 'log_path', 'ANSIBLE_LOG_PATH', ''))
# selinux
DEFAULT_SELINUX_SPECIAL_FS = get_config(p, 'selinux', 'special_context_filesystems', None, 'fuse, nfs, vboxsf', islist=True)
#TODO: get rid of ternary chain mess
BECOME_METHODS = ['sudo','su','pbrun','pfexec','runas']

4
lib/ansible/inventory/__init__.py
View file

@ -36,7 +36,7 @@ class Inventory(object):
Host inventory for ansible.
"""
__slots__ = [ 'host_list', 'groups', '_restriction', '_also_restriction', '_subset',
__slots__ = [ 'host_list', 'groups', '_restriction', '_also_restriction', '_subset',
'parser', '_vars_per_host', '_vars_per_group', '_hosts_cache', '_groups_list',
'_pattern_cache', '_vault_password', '_vars_plugins', '_playbook_basedir']
@ -53,7 +53,7 @@ class Inventory(object):
self._vars_per_host = {}
self._vars_per_group = {}
self._hosts_cache = {}
self._groups_list = {}
self._groups_list = {}
self._pattern_cache = {}
# to be set by calling set_playbook_basedir by playbook code

9
lib/ansible/module_common.py
View file

@ -33,6 +33,8 @@ REPLACER_ARGS = "\"<<INCLUDE_ANSIBLE_MODULE_ARGS>>\""
REPLACER_COMPLEX = "\"<<INCLUDE_ANSIBLE_MODULE_COMPLEX_ARGS>>\""
REPLACER_WINDOWS = "# POWERSHELL_COMMON"
REPLACER_VERSION = "\"<<ANSIBLE_VERSION>>\""
REPLACER_SELINUX = "<<SELINUX_SPECIAL_FILESYSTEMS>>"
class ModuleReplacer(object):
@ -41,14 +43,14 @@ class ModuleReplacer(object):
transfer. Rather than doing classical python imports, this allows for more
efficient transfer in a no-bootstrapping scenario by not moving extra files
over the wire, and also takes care of embedding arguments in the transferred
modules.
modules.
This version is done in such a way that local imports can still be
used in the module code, so IDEs don't have to be aware of what is going on.
Example:
from ansible.module_utils.basic import *
from ansible.module_utils.basic import *
... will result in the insertion basic.py into the module
@ -94,7 +96,7 @@ class ModuleReplacer(object):
module_style = 'new'
elif 'WANT_JSON' in module_data:
module_style = 'non_native_want_json'
output = StringIO()
lines = module_data.split('\n')
snippet_names = []
@ -167,6 +169,7 @@ class ModuleReplacer(object):
# these strings should be part of the 'basic' snippet which is required to be included
module_data = module_data.replace(REPLACER_VERSION, repr(__version__))
module_data = module_data.replace(REPLACER_SELINUX, ','.join(C.DEFAULT_SELINUX_SPECIAL_FS))
module_data = module_data.replace(REPLACER_ARGS, encoded_args)
module_data = module_data.replace(REPLACER_COMPLEX, encoded_complex)

24
lib/ansible/module_utils/basic.py
View file

@ -38,6 +38,8 @@ BOOLEANS_TRUE = ['yes', 'on', '1', 'true', 1]
BOOLEANS_FALSE = ['no', 'off', '0', 'false', 0]
BOOLEANS = BOOLEANS_TRUE + BOOLEANS_FALSE
SELINUX_SPECIAL_FS="<<SELINUX_SPECIAL_FILESYSTEMS>>"
# ansible modules can be written in any language. To simplify
# development of Python modules, the functions available here
# can be inserted in any module source automatically by including
@ -528,10 +530,10 @@ class AnsibleModule(object):
path = os.path.dirname(path)
return path
def is_nfs_path(self, path):
def is_special_selinux_path(self, path):
"""
Returns a tuple containing (True, selinux_context) if the given path
is on a NFS mount point, otherwise the return will be (False, None).
Returns a tuple containing (True, selinux_context) if the given path is on a
NFS or other 'special' fs mount point, otherwise the return will be (False, None).
"""
try:
f = open('/proc/mounts', 'r')
@ -542,9 +544,13 @@ class AnsibleModule(object):
path_mount_point = self.find_mount_point(path)
for line in mount_data:
(device, mount_point, fstype, options, rest) = line.split(' ', 4)
if path_mount_point == mount_point and 'nfs' in fstype:
nfs_context = self.selinux_context(path_mount_point)
return (True, nfs_context)
if path_mount_point == mount_point:
for fs in SELINUX_SPECIAL_FS.split(','):
if fs in fstype:
special_context = self.selinux_context(path_mount_point)
return (True, special_context)
return (False, None)
def set_default_selinux_context(self, path, changed):
@ -562,9 +568,9 @@ class AnsibleModule(object):
# Iterate over the current context instead of the
# argument context, which may have selevel.
(is_nfs, nfs_context) = self.is_nfs_path(path)
if is_nfs:
new_context = nfs_context
(is_special_se, sp_context) = self.is_special_selinux_path(path)
if is_special_se:
new_context = sp_context
else:
for i in range(len(cur_context)):
if len(context) > i: