def _reload_nagios():
""" Reload the nagios server from within the
nagios container
"""
try:
client = NagiosPlugin._connect()
# Validate the nagios config is good
(_stdin, stdout,
_stderr) = client.exec_command(NagiosPlugin.VERIFY_COMMAND)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"Validation of the nagios configuration failed:\n"
"Command: " + NagiosPlugin.VERIFY_COMMAND + "\n"
"Output: " + output + "\n")
# Reload nagios service
(_stdin, stdout,
_stderr) = client.exec_command(NagiosPlugin.RELOAD_COMMAND)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"service reload of nagios failed:\n"
"Command: " + NagiosPlugin.RELOAD_COMMAND + "\n"
"Output: " + output + "\n")
finally:
client.close()
def _connect():
client = paramiko.SSHClient()
if os.path.exists(NagiosPlugin.OPSMGR_CONF):
try:
parser = configparser.ConfigParser()
parser.read(NagiosPlugin.OPSMGR_CONF, encoding='utf-8')
server = parser.get(
NagiosPlugin.NAGIOS_SECTION,
NagiosPlugin.NAGIOS_SERVER).lstrip('"').rstrip('"')
userid = parser.get(
NagiosPlugin.NAGIOS_SECTION,
NagiosPlugin.NAGIOS_USERID).lstrip('"').rstrip('"')
sshkey = parser.get(
NagiosPlugin.NAGIOS_SECTION,
NagiosPlugin.NAGIOS_SSHKEY).lstrip('"').rstrip('"')
prvkey = paramiko.RSAKey.from_private_key_file(sshkey)
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(server,
username=userid,
pkey=prvkey,
timeout=30,
allow_agent=False)
except:
raise exceptions.OpsException(
"connection to nagios server failed:\n"
"Server: " + server + "\n"
"Userid: " + userid + "\n"
"Sshkey: " + sshkey + "\n")
return client
def _rm(client, target):
(_stdin, stdout, _stderr) = client.exec_command('sudo rm -f ' + target)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"Error when removing file or directory:\n"
"Command: " + 'sudo rm -f ' + target + "\n"
"Output: " + output + "\n")
def _chmod(client, target, perms):
(_stdin, stdout, _stderr) = client.exec_command('sudo chmod -R ' +
perms + ' ' + target)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"Error when changing ownership of file or directory:\n"
"Command: " + 'sudo chmod -R ' + perms + ' ' + target + "\n"
"Output: " + output + "\n")
def _mv(client, src, dst):
(_stdin, stdout,
_stderr) = client.exec_command('sudo mv -f ' + src + ' ' + dst)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"Error when moving file or directory:\n"
"Command: " + 'sudo mv -f ' + src + ' ' + dst + "\n"
"Output: " + output + "\n")
def _mkdir(client, dirname):
(_stdin, stdout,
_stderr) = client.exec_command('sudo mkdir -p ' + dirname)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException("Error when creating directory:\n"
"Command: " + 'sudo mkdir -p ' +
dirname + "\n"
"Output: " + output + "\n")
def _remove_config_files(address):
try:
client = GangliaPlugin._connect()
cmd = ("cat /etc/ganglia/gmetad.conf |grep " + address +
"; if [ $? == 0 ]; then " + "sudo sed -i 's/" + address +
"//' /etc/ganglia/gmetad.conf; service gmetad restart; fi")
(_stdin, stdout, _stderr) = client.exec_command(cmd)
rc = stdout.channel.recv_exit_status()
output = stdout.read().decode()
if rc != 0:
raise exceptions.OpsException(
"Error when change gmetad config file:\n"
"Command: " + cmd + "\n"
"Output: " + output + "\n")
finally:
client.close()