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started porting chroot to v2

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This commit is contained in:
Brian Coca 2015-08-06 08:48:45 -04:00
parent 262c75c253
commit cb2cfaebda
1 changed files with 28 additions and 30 deletions
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58
lib/ansible/plugins/connections/chroot.py
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@ -24,47 +24,45 @@ import traceback
import os
import shlex
import subprocess
from ansible import errors
from ansible.errors import AnsibleError
from ansible import utils
from ansible.utils.unicode import to_bytes
from ansible.callbacks import vvv
import ansible.constants as C
BUFSIZE = 65536
class Connection(object):
class Connection(ConnectionBase):
''' Local chroot based connections '''
def __init__(self, runner, host, port, *args, **kwargs):
self.chroot = host
self.has_pipelining = False
self.become_methods_supported=C.BECOME_METHODS
BUFSIZE = 65536
has_pipelining = False
def __init__(self, *args, **kwargs):
super(Connection, self).__init__(*args, **kwargs)
self.chroot = self._play_context.remote_addr
if os.geteuid() != 0:
raise errors.AnsibleError("chroot connection requires running as root")
raise 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)
raise 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)
raise 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")
raise 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):
def _connect(self, port=None):
''' connect to the chroot; nothing to do here '''
vvv("THIS IS A LOCAL CHROOT DIR", host=self.chroot)
self._display.vvv("THIS IS A LOCAL CHROOT DIR", host=self.chroot)
return self
@ -89,15 +87,15 @@ class Connection(object):
'''
if sudoable and self.runner.become and self.runner.become_method not in self.become_methods_supported:
raise errors.AnsibleError("Internal Error: this module does not support running commands via %s" % self.runner.become_method)
raise AnsibleError("Internal Error: this module does not support running commands via %s" % self.runner.become_method)
if in_data:
raise errors.AnsibleError("Internal Error: this module does not support optimized module pipelining")
raise AnsibleError("Internal Error: this module does not support optimized module pipelining")
# We enter zone as root so we ignore privilege escalation (probably need to fix in case we have to become a specific used [ex: postgres admin])?
local_cmd = self._generate_cmd(executable, cmd)
vvv("EXEC %s" % (local_cmd), host=self.chroot)
self._display.vvv("EXEC %s" % (local_cmd), host=self.chroot)
p = subprocess.Popen(local_cmd, shell=False,
cwd=self.runner.basedir,
stdin=stdin,
@ -116,33 +114,33 @@ class Connection(object):
def put_file(self, in_path, out_path):
''' transfer a file from local to chroot '''
vvv("PUT %s TO %s" % (in_path, out_path), host=self.chroot)
self._display.vvv("PUT %s TO %s" % (in_path, out_path), host=self.chroot)
try:
with open(in_path, 'rb') as in_file:
try:
p = self._buffered_exec_command('dd of=%s bs=%s' % (out_path, BUFSIZE), None, stdin=in_file)
except OSError:
raise errors.AnsibleError("chroot connection requires dd command in the chroot")
raise AnsibleError("chroot connection requires dd command in the chroot")
try:
stdout, stderr = p.communicate()
except:
traceback.print_exc()
raise errors.AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
raise AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
if p.returncode != 0:
raise errors.AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
raise AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
except IOError:
raise errors.AnsibleError("file or module does not exist at: %s" % in_path)
raise AnsibleError("file or module does not exist at: %s" % in_path)
def fetch_file(self, in_path, out_path):
''' fetch a file from chroot to local '''
vvv("FETCH %s TO %s" % (in_path, out_path), host=self.chroot)
self._display.vvv("FETCH %s TO %s" % (in_path, out_path), host=self.chroot)
try:
p = self._buffered_exec_command('dd if=%s bs=%s' % (in_path, BUFSIZE), None)
except OSError:
raise errors.AnsibleError("chroot connection requires dd command in the chroot")
raise AnsibleError("chroot connection requires dd command in the chroot")
with open(out_path, 'wb+') as out_file:
try:
@ -152,10 +150,10 @@ class Connection(object):
chunk = p.stdout.read(BUFSIZE)
except:
traceback.print_exc()
raise errors.AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
raise AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
stdout, stderr = p.communicate()
if p.returncode != 0:
raise errors.AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
raise AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
def close(self):
''' terminate the connection; nothing to do here '''