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# Authors:
# Petr Viktorin <pviktori@redhat.com>
#
# Copyright (C) 2013 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
"""Host class for integration testing"""
import os
import collections
import socket
import paramiko
from ipapython import ipautil
from ipapython.ipa_log_manager import log_mgr
RunResult = collections.namedtuple('RunResult', 'output exit_code')
class Host(object):
"""Configuration for an IPA host"""
def __init__(self, domain, hostname, role, index):
self.log = log_mgr.get_logger(self)
self.domain = domain
self.role = role
self.index = index
shortname, dot, ext_domain = hostname.partition('.')
self.hostname = shortname + '.' + self.domain.name
self.external_hostname = hostname
if self.config.ipv6:
# $(dig +short $M $rrtype|tail -1)
stdout, stderr, returncode = ipautil.run(
['dig', '+short', self.external_hostname, 'AAAA'])
self.ip = stdout.splitlines()[-1].strip()
else:
try:
self.ip = socket.gethostbyname(self.external_hostname)
except socket.gaierror:
self.ip = None
if not self.ip:
self.ip = ''
self.role = 'other'
self.root_password = self.config.root_password
self.host_key = None
self.ssh_port = 22
self.env_sh_path = os.path.join(domain.config.test_dir, 'env.sh')
self.log = log_mgr.get_logger('%s.%s.%s' % (
self.__module__, type(self).__name__, self.hostname))
def __repr__(self):
template = ('<{s.__module__}.{s.__class__.__name__} '
'{s.hostname} ({s.role})>')
return template.format(s=self)
@classmethod
def from_env(cls, env, domain, hostname, role, index):
self = cls(domain, hostname, role, index)
return self
@property
def config(self):
return self.domain.config
def to_env(self, **kwargs):
"""Return environment variables specific to this host"""
env = self.domain.to_env(**kwargs)
role = self.role.upper()
if self.role != 'master':
role += str(self.index)
env['MYHOSTNAME'] = self.hostname
env['MYBEAKERHOSTNAME'] = self.external_hostname
env['MYIP'] = self.ip
env['MYROLE'] = '%s%s' % (role, self.domain._env)
env['MYENV'] = str(self.domain.index)
return env
def run_command(self, argv, set_env=True, stdin_text=None,
ignore_stdout=False):
assert argv
self.log.info('RUN %s', argv)
ssh = self.transport.open_channel('session')
try:
ssh.invoke_shell()
ssh.set_combine_stderr(True)
stdin = ssh.makefile('wb')
stdout = ssh.makefile('rb')
if set_env:
stdin.write('. %s\n' % self.env_sh_path)
stdin.write('set -ex\n')
for arg in argv:
stdin.write(ipautil.shell_quote(arg))
stdin.write(' ')
if stdin_text:
stdin_filename = os.path.join(self.config.test_dir, 'stdin')
with self.sftp.open(stdin_filename, 'w') as f:
f.write(stdin_text)
stdin.write('<')
stdin.write(stdin_filename)
else:
stdin.write('< /dev/null')
if ignore_stdout:
stdin.write('> /dev/null')
stdin.write('\n')
ssh.shutdown_write()
output = []
for line in stdout:
output.append(line)
self.log.info(' %s', line.strip('\n'))
exit_status = ssh.recv_exit_status()
self.log.info(' -> Exit code %s', exit_status)
if exit_status:
raise RuntimeError('Command %s exited with error code %s' % (
argv[0], exit_status))
return RunResult(''.join(output), exit_status)
finally:
ssh.close()
@property
def transport(self):
"""Paramiko Transport connected to this host"""
try:
return self._transport
except AttributeError:
sock = socket.create_connection((self.hostname, self.ssh_port))
self._transport = transport = paramiko.Transport(sock)
transport.connect(hostkey=self.host_key, username='root',
password=self.root_password)
return transport
@property
def sftp(self):
"""Paramiko SFTPClient connected to this host"""
try:
return self._sftp
except AttributeError:
transport = self.transport
self._sftp = paramiko.SFTPClient.from_transport(transport)
return self._sftp
def mkdir_recursive(self, path):
"""`mkdir -p` on the remote host"""
try:
self.sftp.chdir(path)
except IOError:
self.mkdir_recursive(os.path.dirname(path))
self.sftp.mkdir(path)
self.sftp.chdir(path)
def get_file_contents(self, filename):
self.log.info('READ %s', filename)
with self.sftp.open(filename) as f:
return f.read()
def put_file_contents(self, filename, contents):
self.log.info('WRITE %s', filename)
with self.sftp.open(filename, 'w') as f:
return f.write(contents)
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