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waagent2.0
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waagent2.0
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#!/usr/bin/env python
#
# Azure Linux Agent
#
# Copyright 2015 Microsoft Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Requires Python 2.6 and Openssl 1.0+
#
# Implements parts of RFC 2131, 1541, 1497 and
# http://msdn.microsoft.com/en-us/library/cc227282%28PROT.10%29.aspx
# http://msdn.microsoft.com/en-us/library/cc227259%28PROT.13%29.aspx
#
import crypt
import random
import array
import base64
import httplib
import os
import os.path
import platform
import pwd
import re
import shutil
import socket
import SocketServer
import struct
import string
import subprocess
import sys
import tempfile
import textwrap
import threading
import time
import traceback
import xml.dom.minidom
import fcntl
import inspect
import zipfile
import json
import datetime
import xml.sax.saxutils
from distutils.version import LooseVersion
if not hasattr(subprocess,'check_output'):
def check_output(*popenargs, **kwargs):
r"""Backport from subprocess module from python 2.7"""
if 'stdout' in kwargs:
raise ValueError('stdout argument not allowed, it will be overridden.')
process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
output, unused_err = process.communicate()
retcode = process.poll()
if retcode:
cmd = kwargs.get("args")
if cmd is None:
cmd = popenargs[0]
raise subprocess.CalledProcessError(retcode, cmd, output=output)
return output
# Exception classes used by this module.
class CalledProcessError(Exception):
def __init__(self, returncode, cmd, output=None):
self.returncode = returncode
self.cmd = cmd
self.output = output
def __str__(self):
return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode)
subprocess.check_output=check_output
subprocess.CalledProcessError=CalledProcessError
GuestAgentName = "WALinuxAgent"
GuestAgentLongName = "Azure Linux Agent"
GuestAgentVersion = "WALinuxAgent-2.0.16"
ProtocolVersion = "2012-11-30" #WARNING this value is used to confirm the correct fabric protocol.
Config = None
WaAgent = None
DiskActivated = False
Openssl = "openssl"
Children = []
ExtensionChildren = []
VMM_STARTUP_SCRIPT_NAME='install'
VMM_CONFIG_FILE_NAME='linuxosconfiguration.xml'
global RulesFiles
RulesFiles = [ "/lib/udev/rules.d/75-persistent-net-generator.rules",
"/etc/udev/rules.d/70-persistent-net.rules" ]
VarLibDhcpDirectories = ["/var/lib/dhclient", "/var/lib/dhcpcd", "/var/lib/dhcp"]
EtcDhcpClientConfFiles = ["/etc/dhcp/dhclient.conf", "/etc/dhcp3/dhclient.conf"]
global LibDir
LibDir = "/var/lib/waagent"
global provisioned
provisioned=False
global provisionError
provisionError=None
HandlerStatusToAggStatus = {"installed":"Installing", "enabled":"Ready", "unintalled":"NotReady", "disabled":"NotReady"}
WaagentConf = """\
#
# Azure Linux Agent Configuration
#
Role.StateConsumer=None # Specified program is invoked with the argument "Ready" when we report ready status
# to the endpoint server.
Role.ConfigurationConsumer=None # Specified program is invoked with XML file argument specifying role configuration.
Role.TopologyConsumer=None # Specified program is invoked with XML file argument specifying role topology.
Provisioning.Enabled=y #
Provisioning.DeleteRootPassword=y # Password authentication for root account will be unavailable.
Provisioning.RegenerateSshHostKeyPair=y # Generate fresh host key pair.
Provisioning.SshHostKeyPairType=rsa # Supported values are "rsa", "dsa" and "ecdsa".
Provisioning.MonitorHostName=y # Monitor host name changes and publish changes via DHCP requests.
ResourceDisk.Format=y # Format if unformatted. If 'n', resource disk will not be mounted.
ResourceDisk.Filesystem=ext4 # Typically ext3 or ext4. FreeBSD images should use 'ufs2' here.
ResourceDisk.MountPoint=/mnt/resource #
ResourceDisk.EnableSwap=n # Create and use swapfile on resource disk.
ResourceDisk.SwapSizeMB=0 # Size of the swapfile.
LBProbeResponder=y # Respond to load balancer probes if requested by Azure.
Logs.Verbose=n # Enable verbose logs
OS.RootDeviceScsiTimeout=300 # Root device timeout in seconds.
OS.OpensslPath=None # If "None", the system default version is used.
"""
README_FILENAME="DATALOSS_WARNING_README.txt"
README_FILECONTENT="""\
WARNING: THIS IS A TEMPORARY DISK.
Any data stored on this drive is SUBJECT TO LOSS and THERE IS NO WAY TO RECOVER IT.
Please do not use this disk for storing any personal or application data.
For additional details to please refer to the MSDN documentation at : http://msdn.microsoft.com/en-us/library/windowsazure/jj672979.aspx
"""
############################################################
# BEGIN DISTRO CLASS DEFS
############################################################
############################################################
# AbstractDistro
############################################################
class AbstractDistro(object):
"""
AbstractDistro defines a skeleton neccesary for a concrete Distro class.
Generic methods and attributes are kept here, distribution specific attributes
and behavior are to be placed in the concrete child named distroDistro, where
distro is the string returned by calling python platform.linux_distribution()[0].
So for CentOS the derived class is called 'centosDistro'.
"""
def __init__(self):
"""
Generic Attributes go here. These are based on 'majority rules'.
This __init__() may be called or overriden by the child.
"""
self.agent_service_name = os.path.basename(sys.argv[0])
self.selinux=None
self.service_cmd='/usr/sbin/service'
self.ssh_service_restart_option='restart'
self.ssh_service_name='ssh'
self.ssh_config_file='/etc/ssh/sshd_config'
self.hostname_file_path='/etc/hostname'
self.dhcp_client_name='dhclient'
self.requiredDeps = [ 'route', 'shutdown', 'ssh-keygen', 'useradd', 'usermod',
'openssl', 'sfdisk', 'fdisk', 'mkfs',
'sed', 'grep', 'sudo', 'parted' ]
self.init_script_file='/etc/init.d/waagent'
self.agent_package_name='WALinuxAgent'
self.fileBlackList = [ "/root/.bash_history", "/var/log/waagent.log",'/etc/resolv.conf' ]
self.agent_files_to_uninstall = ["/etc/waagent.conf", "/etc/logrotate.d/waagent"]
self.grubKernelBootOptionsFile = '/etc/default/grub'
self.grubKernelBootOptionsLine = 'GRUB_CMDLINE_LINUX_DEFAULT='
self.getpidcmd = 'pidof'
self.mount_dvd_cmd = 'mount'
self.sudoers_dir_base = '/etc'
self.waagent_conf_file = WaagentConf
self.shadow_file_mode=0600
self.shadow_file_path="/etc/shadow"
self.dhcp_enabled = False
def isSelinuxSystem(self):
"""
Checks and sets self.selinux = True if SELinux is available on system.
"""
if self.selinux == None:
if Run("which getenforce",chk_err=False):
self.selinux = False
else:
self.selinux = True
return self.selinux
def isSelinuxRunning(self):
"""
Calls shell command 'getenforce' and returns True if 'Enforcing'.
"""
if self.isSelinuxSystem():
return RunGetOutput("getenforce")[1].startswith("Enforcing")
else:
return False
def setSelinuxEnforce(self,state):
"""
Calls shell command 'setenforce' with 'state' and returns resulting exit code.
"""
if self.isSelinuxSystem():
if state: s = '1'
else: s='0'
return Run("setenforce "+s)
def setSelinuxContext(self,path,cn):
"""
Calls shell 'chcon' with 'path' and 'cn' context.
Returns exit result.
"""
if self.isSelinuxSystem():
if not os.path.exists(path):
Error("Path does not exist: {0}".format(path))
return 1
return Run('chcon ' + cn + ' ' + path)
def setHostname(self,name):
"""
Shell call to hostname.
Returns resulting exit code.
"""
return Run('hostname ' + name)
def publishHostname(self,name):
"""
Set the contents of the hostname file to 'name'.
Return 1 on failure.
"""
try:
r=SetFileContents(self.hostname_file_path, name)
for f in EtcDhcpClientConfFiles:
if os.path.exists(f) and FindStringInFile(f,r'^[^#]*?send\s*host-name.*?(<hostname>|gethostname[(,)])') == None :
r=ReplaceFileContentsAtomic('/etc/dhcp/dhclient.conf', "send host-name \"" + name + "\";\n"
+ "\n".join(filter(lambda a: not a.startswith("send host-name"), GetFileContents('/etc/dhcp/dhclient.conf').split('\n'))))
except:
return 1
return r
def installAgentServiceScriptFiles(self):
"""
Create the waagent support files for service installation.
Called by registerAgentService()
Abstract Virtual Function. Over-ridden in concrete Distro classes.
"""
pass
def registerAgentService(self):
"""
Calls installAgentService to create service files.
Shell exec service registration commands. (e.g. chkconfig --add waagent)
Abstract Virtual Function. Over-ridden in concrete Distro classes.
"""
pass
def uninstallAgentService(self):
"""
Call service subsystem to remove waagent script.
Abstract Virtual Function. Over-ridden in concrete Distro classes.
"""
pass
def unregisterAgentService(self):
"""
Calls self.stopAgentService and call self.uninstallAgentService()
"""
self.stopAgentService()
self.uninstallAgentService()
def startAgentService(self):
"""
Service call to start the Agent service
"""
return Run(self.service_cmd + ' ' + self.agent_service_name + ' start')
def stopAgentService(self):
"""
Service call to stop the Agent service
"""
return Run(self.service_cmd + ' ' + self.agent_service_name + ' stop',False)
def restartSshService(self):
"""
Service call to re(start) the SSH service
"""
sshRestartCmd = self.service_cmd + " " + self.ssh_service_name + " " + self.ssh_service_restart_option
retcode = Run(sshRestartCmd)
if retcode > 0:
Error("Failed to restart SSH service with return code:" + str(retcode))
return retcode
def sshDeployPublicKey(self,fprint,path):
"""
Generic sshDeployPublicKey - over-ridden in some concrete Distro classes due to minor differences in openssl packages deployed
"""
error=0
SshPubKey = OvfEnv().OpensslToSsh(fprint)
if SshPubKey != None:
AppendFileContents(path, SshPubKey)
else:
Error("Failed: " + fprint + ".crt -> " + path)
error = 1
return error
def checkPackageInstalled(self,p):
"""
Query package database for prescence of an installed package.
Abstract Virtual Function. Over-ridden in concrete Distro classes.
"""
pass
def checkPackageUpdateable(self,p):
"""
Online check if updated package of walinuxagent is available.
Abstract Virtual Function. Over-ridden in concrete Distro classes.
"""
pass
def deleteRootPassword(self):
"""
Generic root password removal.
"""
filepath="/etc/shadow"
ReplaceFileContentsAtomic(filepath,"root:*LOCK*:14600::::::\n"
+ "\n".join(filter(lambda a: not a.startswith("root:"),GetFileContents(filepath).split('\n'))))
os.chmod(filepath,self.shadow_file_mode)
if self.isSelinuxSystem():
self.setSelinuxContext(filepath,'system_u:object_r:shadow_t:s0')
Log("Root password deleted.")
return 0
def changePass(self,user,password):
Log("Change user password")
crypt_id = Config.get("Provisioning.PasswordCryptId")
if crypt_id is None:
crypt_id = "6"
salt_len = Config.get("Provisioning.PasswordCryptSaltLength")
try:
salt_len = int(salt_len)
if salt_len < 0 or salt_len > 10:
salt_len = 10
except (ValueError, TypeError):
salt_len = 10
return self.chpasswd(user, password, crypt_id=crypt_id,
salt_len=salt_len)
def chpasswd(self, username, password, crypt_id=6, salt_len=10):
passwd_hash = self.gen_password_hash(password, crypt_id, salt_len)
cmd = "usermod -p '{0}' {1}".format(passwd_hash, username)
ret, output = RunGetOutput(cmd, log_cmd=False)
if ret != 0:
return "Failed to set password for {0}: {1}".format(username, output)
def gen_password_hash(self, password, crypt_id, salt_len):
collection = string.ascii_letters + string.digits
salt = ''.join(random.choice(collection) for _ in range(salt_len))
salt = "${0}${1}".format(crypt_id, salt)
return crypt.crypt(password, salt)
def load_ata_piix(self):
return WaAgent.TryLoadAtapiix()
def unload_ata_piix(self):
"""
Generic function to remove ata_piix.ko.
"""
return WaAgent.TryUnloadAtapiix()
def deprovisionWarnUser(self):
"""
Generic user warnings used at deprovision.
"""
print("WARNING! Nameserver configuration in /etc/resolv.conf will be deleted.")
def deprovisionDeleteFiles(self):
"""
Files to delete when VM is deprovisioned
"""
for a in VarLibDhcpDirectories:
Run("rm -f " + a + "/*")
# Clear LibDir, remove nameserver and root bash history
for f in os.listdir(LibDir) + self.fileBlackList:
try:
os.remove(f)
except:
pass
return 0
def uninstallDeleteFiles(self):
"""
Files to delete when agent is uninstalled.
"""
for f in self.agent_files_to_uninstall:
try:
os.remove(f)
except:
pass
return 0
def checkDependencies(self):
"""
Generic dependency check.
Return 1 unless all dependencies are satisfied.
"""
if self.checkPackageInstalled('NetworkManager'):
Error(GuestAgentLongName + " is not compatible with network-manager.")
return 1
try:
m= __import__('pyasn1')
except ImportError:
Error(GuestAgentLongName + " requires python-pyasn1 for your Linux distribution.")
return 1
for a in self.requiredDeps:
if Run("which " + a + " > /dev/null 2>&1",chk_err=False):
Error("Missing required dependency: " + a)
return 1
return 0
def packagedInstall(self,buildroot):
"""
Called from setup.py for use by RPM.
Copies generated files waagent.conf, under the buildroot.
"""
if not os.path.exists(buildroot+'/etc'):
os.mkdir(buildroot+'/etc')
SetFileContents(buildroot+'/etc/waagent.conf', MyDistro.waagent_conf_file)
if not os.path.exists(buildroot+'/etc/logrotate.d'):
os.mkdir(buildroot+'/etc/logrotate.d')
SetFileContents(buildroot+'/etc/logrotate.d/waagent', WaagentLogrotate)
self.init_script_file=buildroot+self.init_script_file
# this allows us to call installAgentServiceScriptFiles()
if not os.path.exists(os.path.dirname(self.init_script_file)):
os.mkdir(os.path.dirname(self.init_script_file))
self.installAgentServiceScriptFiles()
def GetIpv4Address(self):
"""
Return the ip of the
first active non-loopback interface.
"""
addr=''
iface,addr=GetFirstActiveNetworkInterfaceNonLoopback()
return addr
def GetMacAddress(self):
return GetMacAddress()
def GetInterfaceName(self):
return GetFirstActiveNetworkInterfaceNonLoopback()[0]
def RestartInterface(self, iface, max_retry=3):
for retry in range(1, max_retry + 1):
ret = Run("ifdown " + iface + " && ifup " + iface)
if ret == 0:
return
Log("Failed to restart interface: {0}, ret={1}".format(iface, ret))
if retry < max_retry:
Log("Retry restart interface in 5 seconds")
time.sleep(5)
def CreateAccount(self,user, password, expiration, thumbprint):
return CreateAccount(user, password, expiration, thumbprint)
def DeleteAccount(self,user):
return DeleteAccount(user)
def ActivateResourceDisk(self):
"""
Format, mount, and if specified in the configuration
set resource disk as swap.
"""
global DiskActivated
format = Config.get("ResourceDisk.Format")
if format == None or format.lower().startswith("n"):
DiskActivated = True
return
device = DeviceForIdePort(1)
if device == None:
Error("ActivateResourceDisk: Unable to detect disk topology.")
return
device = "/dev/" + device
mountlist = RunGetOutput("mount")[1]
mountpoint = GetMountPoint(mountlist, device)
if(mountpoint):
Log("ActivateResourceDisk: " + device + "1 is already mounted.")
else:
mountpoint = Config.get("ResourceDisk.MountPoint")
if mountpoint == None:
mountpoint = "/mnt/resource"
CreateDir(mountpoint, "root", 0755)
fs = Config.get("ResourceDisk.Filesystem")
if fs == None:
fs = "ext3"
partition = device + "1"
#Check partition type
Log("Detect GPT...")
ret = RunGetOutput("parted {0} print".format(device))
if ret[0] == 0 and "gpt" in ret[1]:
Log("GPT detected.")
#GPT(Guid Partition Table) is used.
#Get partitions.
parts = filter(lambda x : re.match("^\s*[0-9]+", x), ret[1].split("\n"))
#If there are more than 1 partitions, remove all partitions
#and create a new one using the entire disk space.
if len(parts) > 1:
for i in range(1, len(parts) + 1):
Run("parted {0} rm {1}".format(device, i))
Run("parted {0} mkpart primary 0% 100%".format(device))
Run("mkfs." + fs + " " + partition + " -F")
else:
existingFS = RunGetOutput("sfdisk -q -c " + device + " 1", chk_err=False)[1].rstrip()
if existingFS == "7" and fs != "ntfs":
Run("sfdisk -c " + device + " 1 83")
Run("mkfs." + fs + " " + partition)
if Run("mount " + partition + " " + mountpoint, chk_err=False):
#If mount failed, try to format the partition and mount again
Warn("Failed to mount resource disk. Retry mounting.")
Run("mkfs." + fs + " " + partition + " -F")
if Run("mount " + partition + " " + mountpoint):
Error("ActivateResourceDisk: Failed to mount resource disk (" + partition + ").")
return
Log("Resource disk (" + partition + ") is mounted at " + mountpoint + " with fstype " + fs)
#Create README file under the root of resource disk
SetFileContents(os.path.join(mountpoint,README_FILENAME), README_FILECONTENT)
DiskActivated = True
#Create swap space
swap = Config.get("ResourceDisk.EnableSwap")
if swap == None or swap.lower().startswith("n"):
return
sizeKB = int(Config.get("ResourceDisk.SwapSizeMB")) * 1024
if os.path.isfile(mountpoint + "/swapfile") and os.path.getsize(mountpoint + "/swapfile") != (sizeKB * 1024):
os.remove(mountpoint + "/swapfile")
if not os.path.isfile(mountpoint + "/swapfile"):
Run("umask 0077 && dd if=/dev/zero of=" + mountpoint + "/swapfile bs=1024 count=" + str(sizeKB))
Run("mkswap " + mountpoint + "/swapfile")
if not Run("swapon " + mountpoint + "/swapfile"):
Log("Enabled " + str(sizeKB) + " KB of swap at " + mountpoint + "/swapfile")
else:
Error("ActivateResourceDisk: Failed to activate swap at " + mountpoint + "/swapfile")
def Install(self):
return Install()
def mediaHasFilesystem(self,dsk):
if len(dsk) == 0 :
return False
if Run("LC_ALL=C fdisk -l " + dsk + " | grep Disk"):
return False
return True
def mountDVD(self,dvd,location):
return RunGetOutput(self.mount_dvd_cmd + ' ' + dvd + ' ' + location)
def GetHome(self):
return GetHome()
def getDhcpClientName(self):
return self.dhcp_client_name
def initScsiDiskTimeout(self):
"""
Set the SCSI disk timeout when the agent starts running
"""
self.setScsiDiskTimeout()
def setScsiDiskTimeout(self):
"""
Iterate all SCSI disks(include hot-add) and set their timeout if their value are different from the OS.RootDeviceScsiTimeout
"""
try:
scsiTimeout = Config.get("OS.RootDeviceScsiTimeout")
for diskName in [disk for disk in os.listdir("/sys/block") if disk.startswith("sd")]:
self.setBlockDeviceTimeout(diskName, scsiTimeout)
except:
pass
def setBlockDeviceTimeout(self, device, timeout):
"""
Set SCSI disk timeout by set /sys/block/sd*/device/timeout
"""
if timeout != None and device:
filePath = "/sys/block/" + device + "/device/timeout"
if(GetFileContents(filePath).splitlines()[0].rstrip() != timeout):
SetFileContents(filePath,timeout)
Log("SetBlockDeviceTimeout: Update the device " + device + " with timeout " + timeout)
def waitForSshHostKey(self, path):
"""
Provide a dummy waiting, since by default, ssh host key is created by waagent and the key
should already been created.
"""
if(os.path.isfile(path)):
return True
else:
Error("Can't find host key: {0}".format(path))
return False
def isDHCPEnabled(self):
return self.dhcp_enabled
def stopDHCP(self):
"""
Stop the system DHCP client so that the agent can bind on its port. If
the distro has set dhcp_enabled to True, it will need to provide an
implementation of this method.
"""
raise NotImplementedError('stopDHCP method missing')
def startDHCP(self):
"""
Start the system DHCP client. If the distro has set dhcp_enabled to
True, it will need to provide an implementation of this method.
"""
raise NotImplementedError('startDHCP method missing')
def translateCustomData(self, data):
"""
Translate the custom data from a Base64 encoding. Default to no-op.
"""
decodeCustomData = Config.get("Provisioning.DecodeCustomData")
if decodeCustomData != None and decodeCustomData.lower().startswith("y"):
return base64.b64decode(data)
return data
def getConfigurationPath(self):
return "/etc/waagent.conf"
def getProcessorCores(self):
return int(RunGetOutput("grep 'processor.*:' /proc/cpuinfo |wc -l")[1])
def getTotalMemory(self):
return int(RunGetOutput("grep MemTotal /proc/meminfo |awk '{print $2}'")[1])/1024
def getInterfaceNameByMac(self, mac):
ret, output = RunGetOutput("ifconfig -a")
if ret != 0:
raise Exception("Failed to get network interface info")
output = output.replace('\n', '')
match = re.search(r"(eth\d).*(HWaddr|ether) {0}".format(mac),
output, re.IGNORECASE)
if match is None:
raise Exception("Failed to get ifname with mac: {0}".format(mac))
output = match.group(0)
eths = re.findall(r"eth\d", output)
if eths is None or len(eths) == 0:
raise Exception("Failed to get ifname with mac: {0}".format(mac))
return eths[-1]
def configIpV4(self, ifName, addr, netmask=24):
ret, output = RunGetOutput("ifconfig {0} up".format(ifName))
if ret != 0:
raise Exception("Failed to bring up {0}: {1}".format(ifName,
output))
ret, output = RunGetOutput("ifconfig {0} {1}/{2}".format(ifName, addr,
netmask))
if ret != 0:
raise Exception("Failed to config ipv4 for {0}: {1}".format(ifName,
output))
def setDefaultGateway(self, gateway):
Run("/sbin/route add default gw" + gateway, chk_err=False)
def routeAdd(self, net, mask, gateway):
Run("/sbin/route add -net " + net + " netmask " + mask + " gw " + gateway,
chk_err=False)
############################################################
# GentooDistro
############################################################
gentoo_init_file = """\
#!/sbin/runscript
command=/usr/sbin/waagent
pidfile=/var/run/waagent.pid
command_args=-daemon
command_background=true
name="Azure Linux Agent"
depend()
{
need localmount
use logger network
after bootmisc modules
}
"""
class gentooDistro(AbstractDistro):
"""
Gentoo distro concrete class
"""
def __init__(self): #
super(gentooDistro,self).__init__()
self.service_cmd='/sbin/service'
self.ssh_service_name='sshd'
self.hostname_file_path='/etc/conf.d/hostname'
self.dhcp_client_name='dhcpcd'
self.shadow_file_mode=0640
self.init_file=gentoo_init_file
def publishHostname(self,name):
try:
if (os.path.isfile(self.hostname_file_path)):
r=ReplaceFileContentsAtomic(self.hostname_file_path, "hostname=\"" + name + "\"\n"
+ "\n".join(filter(lambda a: not a.startswith("hostname="), GetFileContents(self.hostname_file_path).split("\n"))))
except:
return 1
return r
def installAgentServiceScriptFiles(self):
SetFileContents(self.init_script_file, self.init_file)
os.chmod(self.init_script_file, 0755)
def registerAgentService(self):
self.installAgentServiceScriptFiles()
return Run('rc-update add ' + self.agent_service_name + ' default')
def uninstallAgentService(self):
return Run('rc-update del ' + self.agent_service_name + ' default')
def unregisterAgentService(self):
self.stopAgentService()
return self.uninstallAgentService()
def checkPackageInstalled(self,p):
if Run('eix -I ^' + p + '$',chk_err=False):
return 0
else:
return 1
def checkPackageUpdateable(self,p):
if Run('eix -u ^' + p + '$',chk_err=False):
return 0
else:
return 1
def RestartInterface(self, iface):
Run("/etc/init.d/net." + iface + " restart")
############################################################
# SuSEDistro
############################################################
suse_init_file = """\
#! /bin/sh
#
# Azure Linux Agent sysV init script
#
# Copyright 2013 Microsoft Corporation
# Copyright SUSE LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# /etc/init.d/waagent
#
# and symbolic link
#
# /usr/sbin/rcwaagent
#
# System startup script for the waagent
#
### BEGIN INIT INFO
# Provides: AzureLinuxAgent
# Required-Start: $network sshd
# Required-Stop: $network sshd
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Description: Start the AzureLinuxAgent
### END INIT INFO
PYTHON=/usr/bin/python
WAZD_BIN=/usr/sbin/waagent
WAZD_CONF=/etc/waagent.conf
WAZD_PIDFILE=/var/run/waagent.pid
test -x "$WAZD_BIN" || { echo "$WAZD_BIN not installed"; exit 5; }
test -e "$WAZD_CONF" || { echo "$WAZD_CONF not found"; exit 6; }
. /etc/rc.status
# First reset status of this service
rc_reset
# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - misc error
# 2 - invalid or excess args
# 3 - unimplemented feature (e.g. reload)
# 4 - insufficient privilege
# 5 - program not installed
# 6 - program not configured
#
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.
case "$1" in
start)
echo -n "Starting AzureLinuxAgent"
## Start daemon with startproc(8). If this fails
## the echo return value is set appropriate.
startproc -f ${PYTHON} ${WAZD_BIN} -daemon
rc_status -v
;;
stop)
echo -n "Shutting down AzureLinuxAgent"
## Stop daemon with killproc(8) and if this fails
## set echo the echo return value.
killproc -p ${WAZD_PIDFILE} ${PYTHON} ${WAZD_BIN}
rc_status -v
;;
try-restart)
## Stop the service and if this succeeds (i.e. the
## service was running before), start it again.
$0 status >/dev/null && $0 restart
rc_status
;;
restart)
## Stop the service and regardless of whether it was
## running or not, start it again.
$0 stop
sleep 1
$0 start
rc_status
;;
force-reload|reload)
rc_status
;;
status)
echo -n "Checking for service AzureLinuxAgent "
## Check status with checkproc(8), if process is running
## checkproc will return with exit status 0.
checkproc -p ${WAZD_PIDFILE} ${PYTHON} ${WAZD_BIN}
rc_status -v
;;
probe)
;;
*)
echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
exit 1
;;
esac
rc_exit
"""
class SuSEDistro(AbstractDistro):
"""
SuSE Distro concrete class
Put SuSE specific behavior here...
"""
def __init__(self):
super(SuSEDistro,self).__init__()
self.service_cmd='/sbin/service'
self.ssh_service_name='sshd'
self.kernel_boot_options_file='/boot/grub/menu.lst'
self.hostname_file_path='/etc/HOSTNAME'
self.requiredDeps += [ "/sbin/insserv" ]
self.init_file=suse_init_file
self.dhcp_client_name='dhcpcd'
if ((DistInfo(fullname=1)[0] == 'SUSE Linux Enterprise Server' and DistInfo()[1] >= '12') or \
(DistInfo(fullname=1)[0] == 'openSUSE' and DistInfo()[1] >= '13.2')):
self.dhcp_client_name='wickedd-dhcp4'
self.grubKernelBootOptionsFile = '/boot/grub/menu.lst'
self.grubKernelBootOptionsLine = 'kernel'
self.getpidcmd='pidof '
self.dhcp_enabled=True
def checkPackageInstalled(self,p):
if Run("rpm -q " + p,chk_err=False):
return 0
else:
return 1
def checkPackageUpdateable(self,p):
if Run("zypper list-updates | grep " + p,chk_err=False):
return 1
else:
return 0
def installAgentServiceScriptFiles(self):
try:
SetFileContents(self.init_script_file, self.init_file)
os.chmod(self.init_script_file, 0744)
except:
pass
def registerAgentService(self):
self.installAgentServiceScriptFiles()
return Run('insserv ' + self.agent_service_name)
def uninstallAgentService(self):
return Run('insserv -r ' + self.agent_service_name)
def unregisterAgentService(self):
self.stopAgentService()
return self.uninstallAgentService()
def startDHCP(self):
Run("service " + self.dhcp_client_name + " start", chk_err=False)
def stopDHCP(self):
Run("service " + self.dhcp_client_name + " stop", chk_err=False)
############################################################
# redhatDistro
############################################################
redhat_init_file= """\
#!/bin/bash
#
# Init file for AzureLinuxAgent.
#
# chkconfig: 2345 60 80
# description: AzureLinuxAgent
#
# source function library
. /etc/rc.d/init.d/functions
RETVAL=0
FriendlyName="AzureLinuxAgent"
WAZD_BIN=/usr/sbin/waagent
start()
{
echo -n $"Starting $FriendlyName: "
$WAZD_BIN -daemon &
}
stop()
{
echo -n $"Stopping $FriendlyName: "
killproc -p /var/run/waagent.pid $WAZD_BIN
RETVAL=$?
echo
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
reload)
;;
report)
;;
status)
status $WAZD_BIN
RETVAL=$?
;;
*)