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Sudo support operational in both playbooks and main program. Implementation could use some cleanup.

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This commit is contained in:
Michael DeHaan 2012-03-29 22:58:10 -04:00
parent 81e3496037
commit 2372a3b734
4 changed files with 53 additions and 33 deletions
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46
lib/ansible/connection.py
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@ -22,6 +22,7 @@ import paramiko
import traceback
import os
import time
import random
from ansible import errors
################################################
@ -80,36 +81,47 @@ class ParamikoConnection(object):
self.ssh = self._get_conn()
return self
def exec_command(self, cmd, sudoable=True):
def exec_command(self, cmd, tmp_path, sudoable=False):
''' run a command on the remote host '''
if not self.runner.sudo or not sudoable:
stdin, stdout, stderr = self.ssh.exec_command(cmd)
return (stdin, stdout, stderr)
else:
# percalculated tmp_path is ONLY required for sudo usage
if tmp_path is None:
raise Exception("expecting tmp_path")
r = random.randint(0,99999)
# invoke command using a new connection over sudo
result_file = os.path.join(tmp_path, "sudo_result.%s" % r)
self.ssh.close()
ssh_sudo = self._get_conn()
sudo_chan = ssh_sudo.invoke_shell()
sudo_chan.send("sudo -s\n")
sudo_chan.send("echo 'START==>';%s;echo '<==STOP'\n" % cmd)
timeout = 60 # make configurable?
# to avoid ssh expect logic, redirect output to file and move the
# file when we are done with it...
sudo_chan.send("(%s >%s_pre 2>/dev/null ; mv %s_pre %s) &\n" % (cmd, result_file, result_file, result_file))
time.sleep(1)
while not sudo_chan.recv_ready():
time.sleep(1)
timeout -= 1
if timeout < 0:
return (None, json.dumps(dict(failed=True, msg="sudo timeout")), '')
out = sudo_chan.recv(2058)
sudo_chan.close()
self.ssh = self._get_conn()
out = self._expect_like(out)
return (None, out, '')
def _expect_like(self, msg):
''' hack to make invoke_shell more or less work for sudo usage '''
left = msg.rindex("START==>")
right = msg.rindex("<==STOP")
return msg[left+8:right].lstrip().rstrip()
# now load the results of the JSON execution...
# FIXME: really need some timeout logic here
sftp = self.ssh.open_sftp()
while True:
# print "waiting on %s" % result_file
time.sleep(1)
try:
stat = sftp.stat(result_file)
break
except IOError:
pass
sftp.close()
# TODO: see if there's a SFTP way to just get the file contents w/o saving
# to disk vs this hack...
stdin, stdout, stderr = self.ssh.exec_command("cat %s" % result_file)
return (stdin, stdout, stderr)
def put_file(self, in_path, out_path):
''' transfer a file from local to remote '''