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Fixed bug in find_mount_point function

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The find_mount_point function does not resolve the mount point of paths with a soft-link correctly and returns the wrong mount-point.

I have mounted an NFS filesystem on /nfs-mount. This directory contains a directory called "directory". I also created a soft-link to this last directory: /soft-link-to-directory -> /nfs-mount/directory. I created the following task to copy a file into /soft-link-to-directory:

    - name: copy file to nfs-mount
      copy:
        src: "file"
        dest: "/soft-link-to-directory/file"

This throws an exception:

invalid selinux context: [Errno 95] Operation not supported

This is caused by the find_mount_point function to return '/' as the mount point for '/soft-link-to-directory/file'. This should have been /nfs-mount. Because the find_mount_point returns the wrong mount-point, the is_special_selinux_path function does not recognise the file is on an NFS mount and tries to set the default SELinux context (system_u:object_r:default_t:s0), which fails. The context should have been: system_u:object_r:nfs_t:s0

Full Ansible output:

TASK [copy file to nfs-mount] **************************************************
fatal: [hostname]: FAILED! => {"changed": false, "checksum": "f34b60930a5d6d689cf49a4c16bd7f9806be608c", "cur_context": ["system_u", "object_r", "nfs_t", "s0"], "failed": true, "gid": 24170, "group": "foundation", "input_was": ["system_u", "object_r", "default_t", "s0"], "mode": "0644", "msg": "invalid selinux context: [Errno 95] Operation not supported", "new_context": ["system_u", "object_r", "default_t", "s0"], "owner": "root", "path": "/soft-link-to-directory/.ansible_tmpWCT6Z4file", "secontext": "system_u:object_r:nfs_t:s0", "size": 37, "state": "file", "uid": 0}
This commit is contained in:
ivovangeel 2016-02-24 15:57:16 +01:00
parent 2db3f290ba
commit 23349911f1
1 changed files with 1 additions and 1 deletions
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2
lib/ansible/module_utils/basic.py
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@ -726,7 +726,7 @@ class AnsibleModule(object):
return (uid, gid)
def find_mount_point(self, path):
path = os.path.abspath(os.path.expanduser(os.path.expandvars(path)))
path = os.path.realpath(os.path.expanduser(os.path.expandvars(path)))
while not os.path.ismount(path):
path = os.path.dirname(path)
return path