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Moving {ssh,paramiko}_alt connection types to be the defaults

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The previous implementations will be kept for now as _old
This commit is contained in:
James Cammarata 2014-01-15 15:44:28 -06:00
parent c27db84e41
commit df13b19fe1
5 changed files with 101 additions and 101 deletions
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80
lib/ansible/runner/connection_plugins/ssh.py
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@ -45,7 +45,7 @@ class Connection(object):
self.password = password
self.private_key_file = private_key_file
self.HASHED_KEY_MAGIC = "|1|"
self.has_pipelining = False
self.has_pipelining = True
fcntl.lockf(self.runner.process_lockfile, fcntl.LOCK_EX)
self.cp_dir = utils.prepare_writeable_dir('$HOME/.ansible/cp',mode=0700)
@ -148,11 +148,13 @@ class Connection(object):
def exec_command(self, cmd, tmp_path, sudo_user,sudoable=False, executable='/bin/sh', in_data=None):
''' run a command on the remote host '''
if in_data:
raise errors.AnsibleError("Internal Error: this module does not support optimized module pipelining")
ssh_cmd = self._password_cmd()
ssh_cmd += ["ssh", "-tt"]
ssh_cmd += ["ssh", "-C"]
if not in_data:
# we can only use tty when we are not pipelining the modules. piping data into /usr/bin/python
# inside a tty automatically invokes the python interactive-mode but the modules are not
# compatible with the interactive-mode ("unexpected indent" mainly because of empty lines)
ssh_cmd += ["-tt"]
if utils.VERBOSITY > 3:
ssh_cmd += ["-vvv"]
else:
@ -182,45 +184,81 @@ class Connection(object):
fcntl.lockf(self.runner.process_lockfile, fcntl.LOCK_EX)
fcntl.lockf(self.runner.output_lockfile, fcntl.LOCK_EX)
try:
# Make sure stdin is a proper (pseudo) pty to avoid: tcgetattr errors
master, slave = pty.openpty()
p = subprocess.Popen(ssh_cmd, stdin=slave,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdin = os.fdopen(master, 'w', 0)
os.close(slave)
except:
# create process
if in_data:
# do not use pseudo-pty
p = subprocess.Popen(ssh_cmd, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdin = p.stdin
else:
# try to use upseudo-pty
try:
# Make sure stdin is a proper (pseudo) pty to avoid: tcgetattr errors
master, slave = pty.openpty()
p = subprocess.Popen(ssh_cmd, stdin=slave,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdin = os.fdopen(master, 'w', 0)
os.close(slave)
except:
p = subprocess.Popen(ssh_cmd, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdin = p.stdin
self._send_password()
if self.runner.sudo and sudoable and self.runner.sudo_pass:
# several cases are handled for sudo privileges with password
# * NOPASSWD (tty & no-tty): detect success_key on stdout
# * without NOPASSWD:
# * detect prompt on stdout (tty)
# * detect prompt on stderr (no-tty)
fcntl.fcntl(p.stdout, fcntl.F_SETFL,
fcntl.fcntl(p.stdout, fcntl.F_GETFL) | os.O_NONBLOCK)
fcntl.fcntl(p.stderr, fcntl.F_SETFL,
fcntl.fcntl(p.stderr, fcntl.F_GETFL) | os.O_NONBLOCK)
sudo_output = ''
sudo_errput = ''
while not sudo_output.endswith(prompt) and success_key not in sudo_output:
rfd, wfd, efd = select.select([p.stdout], [],
rfd, wfd, efd = select.select([p.stdout, p.stderr], [],
[p.stdout], self.runner.timeout)
if p.stderr in rfd:
chunk = p.stderr.read()
if not chunk:
raise errors.AnsibleError('ssh connection closed waiting for sudo password prompt')
sudo_errput += chunk
incorrect_password = gettext.dgettext(
"sudo", "Sorry, try again.")
if sudo_errput.strip().endswith("%s%s" % (prompt, incorrect_password)):
raise errors.AnsibleError('Incorrect sudo password')
elif sudo_errput.endswith(prompt):
stdin.write(self.runner.sudo_pass + '\n')
if p.stdout in rfd:
chunk = p.stdout.read()
if not chunk:
raise errors.AnsibleError('ssh connection closed waiting for sudo password prompt')
sudo_output += chunk
else:
if not rfd:
# timeout. wrap up process communication
stdout = p.communicate()
raise errors.AnsibleError('ssh connection error waiting for sudo password prompt')
if success_key not in sudo_output:
stdin.write(self.runner.sudo_pass + '\n')
fcntl.fcntl(p.stdout, fcntl.F_SETFL, fcntl.fcntl(p.stdout, fcntl.F_GETFL) & ~os.O_NONBLOCK)
fcntl.fcntl(p.stderr, fcntl.F_SETFL, fcntl.fcntl(p.stderr, fcntl.F_GETFL) & ~os.O_NONBLOCK)
# We can't use p.communicate here because the ControlMaster may have stdout open as well
stdout = ''
stderr = ''
rpipes = [p.stdout, p.stderr]
if in_data:
try:
stdin.write(in_data)
stdin.close()
except:
raise errors.AnsibleError('SSH Error: data could not be sent to the remote host. Make sure this host can be reached over ssh')
while True:
rfd, wfd, efd = select.select(rpipes, [], rpipes, 1)
@ -255,14 +293,16 @@ class Connection(object):
# the host to known hosts is not intermingled with multiprocess output.
fcntl.lockf(self.runner.output_lockfile, fcntl.LOCK_UN)
fcntl.lockf(self.runner.process_lockfile, fcntl.LOCK_UN)
controlpersisterror = stderr.find('Bad configuration option: ControlPersist') != -1 or stderr.find('unknown configuration option: ControlPersist') != -1
if C.HOST_KEY_CHECKING:
if ssh_cmd[0] == "sshpass" and p.returncode == 6:
raise errors.AnsibleError('Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this. Please add this host\'s fingerprint to your known_hosts file to manage this host.')
controlpersisterror = stderr.find('Bad configuration option: ControlPersist') != -1 or stderr.find('unknown configuration option: ControlPersist') != -1
if p.returncode != 0 and controlpersisterror:
raise errors.AnsibleError('using -c ssh on certain older ssh versions may not support ControlPersist, set ANSIBLE_SSH_ARGS="" (or ansible_ssh_args in the config file) before running again')
if p.returncode == 255 and in_data:
raise errors.AnsibleError('SSH Error: data could not be sent to the remote host. Make sure this host can be reached over ssh')
return (p.returncode, '', stdout, stderr)