/lib/ansible/runner/connection_plugins/chroot.py
https://github.com/ajanthanm/ansible · Python · 130 lines · 78 code · 25 blank · 27 comment · 19 complexity · a5c61c323649b51bff9056d1b4f88565 MD5 · raw file
- # Based on local.py (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
- # (c) 2013, Maykel Moya <mmoya@speedyrails.com>
- #
- # This file is part of Ansible
- #
- # Ansible is free software: you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- #
- # Ansible is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with Ansible. If not, see <http://www.gnu.org/licenses/>.
- import distutils.spawn
- import traceback
- import os
- import shutil
- import subprocess
- from ansible import errors
- from ansible import utils
- from ansible.callbacks import vvv
- class Connection(object):
- ''' Local chroot based connections '''
- def __init__(self, runner, host, port, *args, **kwargs):
- self.chroot = host
- self.has_pipelining = False
- if os.geteuid() != 0:
- raise errors.AnsibleError("chroot connection requires running as root")
- # we're running as root on the local system so do some
- # trivial checks for ensuring 'host' is actually a chroot'able dir
- if not os.path.isdir(self.chroot):
- raise errors.AnsibleError("%s is not a directory" % self.chroot)
- chrootsh = os.path.join(self.chroot, 'bin/sh')
- if not utils.is_executable(chrootsh):
- raise errors.AnsibleError("%s does not look like a chrootable dir (/bin/sh missing)" % self.chroot)
- self.chroot_cmd = distutils.spawn.find_executable('chroot')
- if not self.chroot_cmd:
- raise errors.AnsibleError("chroot command not found in PATH")
- self.runner = runner
- self.host = host
- # port is unused, since this is local
- self.port = port
- def connect(self, port=None):
- ''' connect to the chroot; nothing to do here '''
- vvv("THIS IS A LOCAL CHROOT DIR", host=self.chroot)
- return self
- def exec_command(self, cmd, tmp_path, sudo_user=None, sudoable=False, executable='/bin/sh', in_data=None, su=None, su_user=None):
- ''' run a command on the chroot '''
- if su or su_user:
- raise errors.AnsibleError("Internal Error: this module does not support running commands via su")
- if in_data:
- raise errors.AnsibleError("Internal Error: this module does not support optimized module pipelining")
- # We enter chroot as root so sudo stuff can be ignored
- if executable:
- local_cmd = [self.chroot_cmd, self.chroot, executable, '-c', cmd]
- else:
- local_cmd = '%s "%s" %s' % (self.chroot_cmd, self.chroot, cmd)
- vvv("EXEC %s" % (local_cmd), host=self.chroot)
- p = subprocess.Popen(local_cmd, shell=isinstance(local_cmd, basestring),
- cwd=self.runner.basedir,
- stdin=subprocess.PIPE,
- stdout=subprocess.PIPE, stderr=subprocess.PIPE)
- stdout, stderr = p.communicate()
- return (p.returncode, '', stdout, stderr)
- def put_file(self, in_path, out_path):
- ''' transfer a file from local to chroot '''
- if not out_path.startswith(os.path.sep):
- out_path = os.path.join(os.path.sep, out_path)
- normpath = os.path.normpath(out_path)
- out_path = os.path.join(self.chroot, normpath[1:])
- vvv("PUT %s TO %s" % (in_path, out_path), host=self.chroot)
- if not os.path.exists(in_path):
- raise errors.AnsibleFileNotFound("file or module does not exist: %s" % in_path)
- try:
- shutil.copyfile(in_path, out_path)
- except shutil.Error:
- traceback.print_exc()
- raise errors.AnsibleError("failed to copy: %s and %s are the same" % (in_path, out_path))
- except IOError:
- traceback.print_exc()
- raise errors.AnsibleError("failed to transfer file to %s" % out_path)
- def fetch_file(self, in_path, out_path):
- ''' fetch a file from chroot to local '''
- if not in_path.startswith(os.path.sep):
- in_path = os.path.join(os.path.sep, in_path)
- normpath = os.path.normpath(in_path)
- in_path = os.path.join(self.chroot, normpath[1:])
- vvv("FETCH %s TO %s" % (in_path, out_path), host=self.chroot)
- if not os.path.exists(in_path):
- raise errors.AnsibleFileNotFound("file or module does not exist: %s" % in_path)
- try:
- shutil.copyfile(in_path, out_path)
- except shutil.Error:
- traceback.print_exc()
- raise errors.AnsibleError("failed to copy: %s and %s are the same" % (in_path, out_path))
- except IOError:
- traceback.print_exc()
- raise errors.AnsibleError("failed to transfer file to %s" % out_path)
- def close(self):
- ''' terminate the connection; nothing to do here '''
- pass