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SDN OpenFlow OpenvSwitch KVM Installation

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Sep 24th, 2012
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  1. ###############################################################
  2. # This installs OpenvSwitch, KVM, Git(Hub) and an OpenFlow    #
  3. # Controller FloodLight (optional). It also downloads a 16Mb  #
  4. # linux-0.2.img.bz2 file that from http://wiki.qemu.org that  #
  5. # is great for testing networking since it is so lightweight  #
  6. # you can simulate lots of VMs running in nested a hypervisors#
  7. # on your laptop or older desktop rather than needing a server#
  8. # for learning or labbing. This is for *Ubuntu* only since it #
  9. # is using apt-get for pkg management.                        #
  10. # This is NOT for anything other than labbing and testing but #
  11. # the KVM and OpenvSwitch install would run production easily.#
  12. # Feel free to use this however you like. Python is a great   #
  13. # language for infrastrcuture applications. It has clean      #
  14. # abstraction leaving it easy to read but also has the power  #
  15. # of object oriented programming. This wil install a fully    #
  16. # working Software Defined Networking (SDN) and OpenFlow      #
  17. # lab in a few minutes. See the accompanying post             #
  18. # I recommend starting in a VM using VMware Fusion as the     #
  19. # first option only becuase it seems to deal with OVS better  #
  20. # than VirtualBox but both work. I would also recommend using #
  21. # snapshots heavily. Install your base Linux 12.04 build and  #
  22. # then take a snapshot in case you have problems with the     #
  23. # App you can rollback to the original snapshot and start over#
  24. # Comments at Twitters @networkstatic, Thanks-Brent Salisbury #
  25. ###############################################################
  26. #http://networkstatic.net/openflow-and-openvswitch-sdn-lab-scripted-in-minutes
  27. #!/usr/bin/python
  28. import subprocess
  29. import os
  30. import time
  31.  
  32. def git():
  33.     #Install Git
  34.     gitProc = subprocess.Popen('apt-get install -y git', shell=True, stdin=None, executable="/bin/bash")
  35.     gitProc.wait()
  36.     print("Finished installing Git")
  37.  
  38. def kvm():
  39.     #Install KVM
  40.     kvmProc = subprocess.Popen('apt-get install -y kvm qemu-kvm', shell=True, stdin=None, executable="/bin/bash")
  41.     kvmProc.wait()
  42.     print("Finished installing KVM")
  43.  
  44. def OVSinst():
  45.     #Download and compile the OpenvSwitch unless a directory name openvswitch exists.
  46.     #This Git pulls latest dev snapshot from main the branch @ git://openvswitch.org/openvswitch.
  47.     if os.path.exists('openvswitch'):
  48.         print('It appears you already have cloned openvswitch, skipping the clone')
  49.     if not os.path.exists('openvswitch'):
  50.         print('Cloning OVS from GitHub and then compiling the code, may take a few minutes...')
  51.         ovs0Proc = subprocess.Popen("""apt-get install -y git python-simplejson python-qt4 python-twisted-conch automake autoconf
  52. gcc uml-utilities libtool build-essential git pkg-config linux-headers-`uname -r`""", shell=True, stdin=None, executable="/bin/bash")
  53.         ovs0Proc.wait()
  54.         ovs1Proc = subprocess.Popen('apt-get install -y openvswitch-controller', shell=True, stdin=None, executable="/bin/bash")
  55.         ovs1Proc.wait()
  56.         ovs2Proc = subprocess.Popen(' git clone git://openvswitch.org/openvswitch', shell=True, stdin=None, executable="/bin/bash")
  57.         ovs2Proc.wait()
  58.         os.chdir("openvswitch")
  59.         ovs4Proc = subprocess.Popen('./boot.sh', shell=True, stdin=None, executable="/bin/bash")
  60.         ovs4Proc.wait()
  61.         ovs5Proc = subprocess.Popen('./configure --with-linux=/lib/modules/`uname -r`/build', shell=True, stdin=None, executable="/bin/bash")
  62.         ovs5Proc.wait()
  63.         ovs6Proc = subprocess.Popen('make && make install', shell=True, stdin=None, executable="/bin/bash")
  64.         ovs6Proc.wait()
  65.         ovs7Proc = subprocess.Popen('insmod datapath/linux/openvswitch.ko', shell=True, stdin=None, executable="/bin/bash")
  66.         ovs7Proc.wait()
  67.         ovs8Proc = subprocess.Popen('insmod datapath/linux/brcompat.ko', shell=True, stdin=None, executable="/bin/bash")
  68.         ovs8Proc.wait()
  69.         ovs9Proc = subprocess.Popen('mkdir -p /usr/local/etc/openvswitch', shell=True, stdin=None, executable="/bin/bash")
  70.         ovs9Proc.wait()
  71.         ovs10Proc = subprocess.Popen('ovsdb-tool create /usr/local/etc/openvswitch/conf.db vswitchd/vswitch.ovsschema', shell=True, stdin=None, executable="/bin/bash")
  72.         ovs10Proc.wait()
  73.         ovs11Proc = subprocess.Popen("""ovsdb-server /usr/local/etc/openvswitch/conf.db \
  74. --remote=punix:/usr/local/var/run/openvswitch/db.sock \
  75. --remote=db:Open_vSwitch,manager_options \
  76. --private-key=db:SSL,private_key \
  77. --certificate=db:SSL,certificate \
  78. --bootstrap-ca-cert=db:SSL,ca_cert --pidfile --detach --log-file""", shell=True, stdin=None, executable="/bin/bash")
  79.         ovs11Proc.wait()
  80.         ovs12Proc = subprocess.Popen('ovs-vsctl --no-wait init', shell=True, stdin=None, executable="/bin/bash")
  81.         ovs12Proc.wait()
  82.         ovs13Proc = subprocess.Popen('ovs-vswitchd --pidfile --detach', shell=True, stdin=None, executable="/bin/bash")
  83.         ovs13Proc.wait()
  84.         os.chdir("../")
  85.  
  86. def ovsVXinst():
  87.     #Download and compile the VXLan OpenvSwitch unless a directory name ovs-vxlan exists.
  88.     if os.path.exists('ovs-vxlan'):
  89.         print('It appears you already have cloned ovs-vxlan, skipping the clone')
  90.     if not os.path.exists('ovs-vxlan'):
  91.         print('Cloning OVS from GitHub and then compiling the code, may take a few minutes...')
  92.         ovs0Proc = subprocess.Popen("""apt-get install -y git python-simplejson python-qt4 python-twisted-conch automake autoconf
  93. gcc uml-utilities libtool build-essential git pkg-config linux-headers-`uname -r`""", shell=True, stdin=None, executable="/bin/bash")
  94.         ovs0Proc.wait()
  95.         ovs1Proc = subprocess.Popen('apt-get install -y openvswitch-controller', shell=True, stdin=None, executable="/bin/bash")
  96.         ovs1Proc.wait()
  97.         ovs2Proc = subprocess.Popen('git clone https://github.com/mestery/ovs-vxlan.git', shell=True, stdin=None, executable="/bin/bash")
  98.         ovs2Proc.wait()
  99.         os.chdir("ovs-vxlan")
  100.         ovs3Proc = subprocess.Popen('git checkout vxlan', shell=True, stdin=None, executable="/bin/bash")
  101.         ovs3Proc.wait()
  102.         ovs4Proc = subprocess.Popen('./boot.sh', shell=True, stdin=None, executable="/bin/bash")
  103.         ovs4Proc.wait()
  104.         ovs5Proc = subprocess.Popen('./configure --with-linux=/lib/modules/`uname -r`/build', shell=True, stdin=None, executable="/bin/bash")
  105.         ovs5Proc.wait()
  106.         ovs6Proc = subprocess.Popen('make && make install', shell=True, stdin=None, executable="/bin/bash")
  107.         ovs6Proc.wait()
  108.         ovs7Proc = subprocess.Popen('insmod datapath/linux/openvswitch.ko', shell=True, stdin=None, executable="/bin/bash")
  109.         ovs7Proc.wait()
  110.         ovs8Proc = subprocess.Popen('insmod datapath/linux/brcompat.ko', shell=True, stdin=None, executable="/bin/bash")
  111.         ovs8Proc.wait()
  112.         ovs9Proc = subprocess.Popen('mkdir -p /usr/local/etc/openvswitch', shell=True, stdin=None, executable="/bin/bash")
  113.         ovs9Proc.wait()
  114.         ovs10Proc = subprocess.Popen('ovsdb-tool create /usr/local/etc/openvswitch/conf.db vswitchd/vswitch.ovsschema', shell=True, stdin=None, executable="/bin/bash")
  115.         ovs10Proc.wait()
  116.         ovs11Proc = subprocess.Popen("""ovsdb-server /usr/local/etc/openvswitch/conf.db \
  117. --remote=punix:/usr/local/var/run/openvswitch/db.sock \
  118. --remote=db:Open_vSwitch,manager_options \
  119. --private-key=db:SSL,private_key \
  120. --certificate=db:SSL,certificate \
  121. --bootstrap-ca-cert=db:SSL,ca_cert --pidfile --detach --log-file""", shell=True, stdin=None, executable="/bin/bash")
  122.         ovs11Proc.wait()
  123.         ovs12Proc = subprocess.Popen('ovs-vsctl --no-wait init', shell=True, stdin=None, executable="/bin/bash")
  124.         ovs12Proc.wait()
  125.         ovs13Proc = subprocess.Popen('ovs-vswitchd --pidfile --detach', shell=True, stdin=None, executable="/bin/bash")
  126.         ovs13Proc.wait()
  127.         os.chdir("../")
  128.  
  129. def OVSinstOF():
  130.     #Download and compile the VXLan OpenvSwitch unless a directory name ovs-vxlan exists.
  131.     if os.path.exists('ovs-vxlan'):
  132.         print('It appears you already have cloned ovs-vxlan, skipping the clone')
  133.     if not os.path.exists('ovs-vxlan'):
  134.         print('Cloning OVS from GitHub and then compiling the code, may take a few minutes...')
  135.         ovsf1Proc = subprocess.Popen("""apt-get install -y git python-simplejson python-qt4 python-twisted-conch automake autoconf
  136. gcc uml-utilities libtool build-essential git pkg-config linux-headers-`uname -r`""", shell=True, stdin=None, executable="/bin/bash")
  137.         ovsf1Proc.wait()
  138.         ovsf2Proc = subprocess.Popen('git clone https://github.com/mestery/ovs-vxlan.git', shell=True, stdin=None, executable="/bin/bash")
  139.         ovsf2Proc.wait()
  140.         os.chdir("ovs-vxlan")
  141.         ovsf3Proc = subprocess.Popen('git checkout vxlan', shell=True, stdin=None, executable="/bin/bash")
  142.         ovsf3Proc.wait()
  143.         ovsf4Proc = subprocess.Popen('./boot.sh', shell=True, stdin=None, executable="/bin/bash")
  144.         ovsf4Proc.wait()
  145.         ovsf5Proc = subprocess.Popen('./configure --with-linux=/lib/modules/`uname -r`/build', shell=True, stdin=None, executable="/bin/bash")
  146.         ovsf5Proc.wait()
  147.         ovsf6Proc = subprocess.Popen('make && make install', shell=True, stdin=None, executable="/bin/bash")
  148.         ovsf6Proc.wait()
  149.         ovsf7Proc = subprocess.Popen('insmod datapath/linux/openvswitch.ko', shell=True, stdin=None, executable="/bin/bash")
  150.         ovsf7Proc.wait()
  151.         ovsf8Proc = subprocess.Popen('insmod datapath/linux/brcompat.ko', shell=True, stdin=None, executable="/bin/bash")
  152.         ovsf8Proc.wait()
  153.         ovsf9Proc = subprocess.Popen('mkdir -p /usr/local/etc/openvswitch', shell=True, stdin=None, executable="/bin/bash")
  154.         ovsf9Proc.wait()
  155.         ovsf10Proc = subprocess.Popen('ovsdb-tool create /usr/local/etc/openvswitch/conf.db vswitchd/vswitch.ovsschema', shell=True, stdin=None, executable="/bin/bash")
  156.         ovsf10Proc.wait()
  157.         ovsf11Proc = subprocess.Popen("""ovsdb-server /usr/local/etc/openvswitch/conf.db \
  158. --remote=punix:/usr/local/var/run/openvswitch/db.sock \
  159. --remote=db:Open_vSwitch,manager_options \
  160. --private-key=db:SSL,private_key \
  161. --certificate=db:SSL,certificate \
  162. --bootstrap-ca-cert=db:SSL,ca_cert --pidfile --detach --log-file""", shell=True, stdin=None, executable="/bin/bash")
  163.         ovsf11Proc.wait()
  164.         ovsf12Proc = subprocess.Popen('ovs-vsctl --no-wait init', shell=True, stdin=None, executable="/bin/bash")
  165.         ovsf12Proc.wait()
  166.         ovsf13Proc = subprocess.Popen('ovs-vswitchd --pidfile --detach', shell=True, stdin=None, executable="/bin/bash")
  167.         ovsf13Proc.wait()
  168.         os.chdir("../")
  169.  
  170. def images():
  171.     img = ('linux-0.2.img')
  172.     print('Checking if the Host Linux Image ' + img + ' exists')
  173.     if os.path.exists(img):
  174.         print(img + ' is already in the current working directory, delete if a partial download\n')
  175.     else:
  176.         print('Downloading ' + img + ' from http://wiki.qemu.org/Testing approximately 8Mb')
  177.         lnxDlProc = subprocess.Popen('wget http://wiki.qemu.org/download/linux-0.2.img.bz2', shell=True, stdin=None, executable="/bin/bash")
  178.         lnxDlProc.wait()
  179.         bunzipProc = subprocess.Popen('bunzip2 linux-0.2.img.bz2', shell=True, stdin=None, executable="/bin/bash")
  180.         bunzipProc.wait()
  181.    
  182. def etcifup():
  183.     print('Adding OVS interface script /etc/ovs-ifup')
  184.     fhup = ('/etc/ovs-ifup')
  185.     if os.path.exists(fhup):
  186.         print('file /etc/ovs-ifup exists skipping')
  187.     else:
  188.         print ('Adding /etc/ovs-ifup')
  189.         ovsup = ("""#!/bin/sh
  190. switch='br-int'
  191. /sbin/ifconfig $1 0.0.0.0 up promisc
  192. ovs-vsctl add-port ${switch} $1""")
  193.         ovsupf = open('/etc/ovs-ifup', 'w')
  194.         ovsupf.write(ovsup)
  195.         ovsupf.close()
  196.         os.chmod('/etc/ovs-ifup', 0755)
  197.  
  198. def etcifdown():
  199.     print('Adding OVS interface script /etc/ovs-ifdown')
  200.     fhdown = ('/etc/ovs-ifdown')
  201.     if os.path.exists(fhdown):
  202.         print('file /etc/ovs-ifdown exists skipping')
  203.     else:
  204.         print ('Adding /etc/ovs-ifdown')
  205.         ovsdown = ("""#!/bin/sh
  206. switch='br-int'
  207. /sbin/ifconfig $1 0.0.0.0 down
  208. ovs-vsctl del-port ${switch} $1""")
  209.         ovsdownf = open('/etc/ovs-ifdown', 'w')
  210.         ovsdownf.write(ovsdown)
  211.         ovsdownf.close()
  212.         os.chmod('/etc/ovs-ifdown', 0755)
  213.  
  214. def OVSconf():
  215.     print('Adding an OpenvSwitch bridged interface br-int')
  216.     ovsCnf1Proc = subprocess.Popen('ovs-vsctl add-br br-int', shell=True, stdin=None, executable="/bin/bash")
  217.     ovsCnf1Proc.wait()
  218.     ovsCnf2Proc = subprocess.Popen('ovs-vsctl add-port br-int eth0', shell=True, stdin=None, executable="/bin/bash")
  219.     ovsCnf2Proc.wait()
  220.    
  221. def ovsOFconf(strIP):
  222.     print('Adding an OpenvSwitch bridged interface br-int and Attaching to an OF Controller')
  223.     ovsOFconf1Proc = subprocess.Popen('sudo ovs-vsctl add-br br-int', shell=True, stdin=None, executable="/bin/bash")
  224.     ovsOFconf1Proc.wait()
  225.     ovsOFconf2Proc = subprocess.Popen('sudo ovs-vsctl add-port br-int eth0', shell=True, stdin=None, executable="/bin/bash")
  226.     ovsOFconf2Proc.wait()
  227.     ovsOFconf3Proc = subprocess.Popen('sudo ovs-vsctl set-controller br-int tcp:' + strIP + ':6633', shell=True, stdin=None, executable="/bin/bash")
  228.     ovsOFconf3Proc.wait()
  229.  
  230. def IPaddrs(strGW, strIP, strNetMask):
  231.     print ('Moving Default Gateway to use (br-int) using --> ' + strGW)
  232.     print ('Moving IP address on Eth0 to (br-int) for OpenvSwitch to use --> ' +strIP)
  233.     ipbrProc = subprocess.Popen('ifconfig br-int ' + strIP + ' netmask 255.255.255.0', shell=True, stdin=None, executable="/bin/bash")
  234.     ipbrProc.wait()
  235.     gwProc = subprocess.Popen('route add default gw ' + strGW + ' br-int', shell=True, stdin=None, executable="/bin/bash")
  236.     gwProc.wait()
  237.     ipdelProc = subprocess.Popen('ifconfig eth0 0', shell=True, stdin=None, executable="/bin/bash")
  238.     ipdelProc.wait()
  239.  
  240. def floodlight():
  241.     imgfl = ('floodlight.jar')
  242.     jreProc = subprocess.Popen('apt-get install -y default-jre python-dev curl', shell=True, stdin=None, executable="/bin/bash")
  243.     jreProc.wait()
  244.     if os.path.exists(imgfl):
  245.         print('It appears you already have already downloaded floodlight.jar')
  246.         print(imgfl + ' is already in the current working directory\n redownload or delete if a partial download now Installing deps..')
  247.         devnull = open('/dev/null', 'w')
  248.         subprocess.Popen('xterm -e java -jar floodlight.jar  & > /dev/null', shell=True, stdin=None, stderr=devnull, executable="/bin/bash")
  249.         devnull.close()
  250.         print('Floodlight OpenFlow Controller Started in a new Xterm console')
  251.     if not os.path.exists(imgfl):
  252.         print('Cloning OVS from GitHub and then compiling the code, may take a few minutes...')
  253.         print('Installing openjdk6 and cloning Floodlight from GitHub')
  254.         gitflProc = subprocess.Popen('wget http://floodlight.openflowhub.org/files/floodlight.jar', shell=True, stdin=None, executable="/bin/bash")
  255.         gitflProc.wait()
  256.         devnull = open('/dev/null', 'w')
  257.         subprocess.Popen('xterm -e java -jar floodlight.jar  & > /dev/null', shell=True, stdin=None, stderr=devnull, executable="/bin/bash")
  258.         devnull.close()
  259.         print('Floodlight OpenFlow Controller Started in a new Xterm console')
  260.    
  261. def pox():
  262.         #Download and compile the VXLan OpenvSwitch unless a directory name ovs-vxlan exists.
  263.     if os.path.exists('pox'):
  264.         print('It appears you already have cloned POX, skipping the clone')
  265.     if not os.path.exists('pox'):
  266.         print('Cloning POX from GitHub and then compiling the code, may take a few minutes...')
  267.         print('Pox requires Python 2.7 to run')
  268.         gitPoxProc = subprocess.Popen('git clone http://github.com/noxrepo/pox', shell=True, stdin=None, executable="/bin/bash")
  269.         gitPoxProc.wait()
  270.         devnull = open('/dev/null', 'w')
  271.         subprocess.Popen('xterm -e python pox/pox.py  forwarding.l2_learning web.webcore &', shell=True, stdin=None, stderr=devnull, executable="/bin/bash")
  272.         devnull.close()
  273.         print('POX OpenFlow Controller Started using the forwarding.l2_learning in a new Xterm console')  
  274.  
  275. def boot():
  276.     print ('Installation complete! The text above has instructions, Happy Labbing!\nBooting a VM in 10 seconds. Press Control+C to abort.')
  277.     time.sleep(15)
  278.     devnull = open('/dev/null', 'w')
  279.     gitPoxProc = subprocess.Popen('kvm -m 128 -net nic,macaddr=33:22:22:00:cc:01 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &', shell=True, stdin=None, stderr=devnull, executable="/bin/bash")
  280.     devnull.close()
  281.  
  282. def msgEof():
  283.     print("""############################################################################
  284. # Installation complete! Now start a VM or run the bash script in the post.#
  285. ############################################################################
  286. # Copy and paste all three lines into the console from the SAME directory  #
  287. # you installed the script from that has the downloaded "linux-0.2.img"    #
  288. # image. Do this with in the Ubuntu GUI. Then in the window give it an     #
  289. # address on your subnet and a default gateway in the VM that boots in the #
  290. # QEMU window that pops up. Break out of the QEMU window inside VirtualBox #
  291. # use alt + control + command a few times to free the mouse pointer.       #
  292. # Example IP--> ** ifconfig eth0 192.168.1.20 netmask 255.255.255.0 **     #
  293. # Example Default Gateway-->** route add default gateway 192.168.1.1 **    #
  294. # To start a VM copy and paste this into the console                       #
  295. ############################################################################
  296. #Use unique Mac addresses for hosts e.g. cc:10, cc:11 see details in post  #
  297. ############################################################################
  298. Examples to copy and paste (Notice unique MAC addresses on each VM 01, 02, 03)
  299. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:01 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  300. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:02 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  301. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:03 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  302. Booting one VM with a MAC address of AA:AA:12:34:56:78 as an example.
  303. When it boots you give it an IP address and gatewat as explanined above.
  304. Type 'ovs-vsctl show' to the the VNIC (tap0) and OVS configuration
  305. ################################################################################
  306. # -More information about what you can do with this Lab at:                    #
  307. # http://networkstatic.net/openflow-and-openvswitch-sdn-lab-scripted-in-minutes#
  308. # Comments at Twitters @networkstatic, Thanks- Brent Salisbury                 #
  309. ################################################################################""")
  310.  
  311. def floodEof(strIP):
  312.     print("""############################################################################
  313. # Installation complete! Now start a VM or run the bash script in the post.#
  314. ############################################################################
  315. # Copy and paste all three lines into the console from the SAME directory  #
  316. # you installed the script from that has the downloaded "linux-0.2.img"    #
  317. # image. Do this with in the Ubuntu GUI. Then in the window give it an     #
  318. # address on your subnet and a default gateway in the VM that boots in the #
  319. # QEMU window that pops up. Break out of the QEMU window inside VirtualBox #
  320. # use alt + control + command a few times to free the mouse pointer.       #
  321. # Example IP--> **ifconfig eth0 192.168.1.20 netmask 255.255.255.0**       #
  322. # Example Default Gateway-->**route add default gateway 192.168.1.1**      #
  323. # To start a VM copy and paste this into the console                       #
  324. ############################################################################
  325. #Use unique Mac addresses for hosts e.g. cc:10, cc:11 see details in post  #
  326. ############################################################################
  327. Examples to copy and paste (Notice unique MAC addresses on each VM 01, 02, 03)
  328. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:01 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  329. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:02 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  330. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:03 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  331. Booting one VM with a MAC address of AA:AA:12:34:56:78 as an example.
  332. When it boots you give it an IP address and gatewat as explanined above.
  333. Type 'ovs-vsctl show' to the the VNIC (tap0) and OVS configuration
  334. ############################################################################
  335. # FloodLight Controller running at http://"""+strIP+""":8080/ui/index.html #
  336. # Put the URL above in a web browser to see the web UI                     #
  337. ################################################################################
  338. # -More information about what you can do with this Lab at:                    #
  339. # http://networkstatic.net/openflow-and-openvswitch-sdn-lab-scripted-in-minutes#
  340. # Comments at Twitters @networkstatic, Thanks- Brent Salisbury                 #
  341. ################################################################################""")
  342.  
  343. def poxEof():
  344.     print("""############################################################################
  345. # Installation complete! Now start a VM or run the bash script in the post.#
  346. ############################################################################
  347. # Copy and paste all three lines into the console from the SAME directory  #
  348. # you installed the script from that has the downloaded "linux-0.2.img"    #
  349. # image. Do this with in the Ubuntu GUI. Then in the window give it an     #
  350. # address on your subnet and a default gateway in the VM that boots in the #
  351. # QEMU window that pops up. Break out of the QEMU window inside VirtualBox #
  352. # use alt + control + command a few times to free the mouse pointer.       #
  353. # Example IP--> **ifconfig eth0 192.168.1.20 netmask 255.255.255.0**       #
  354. # Example Default Gateway-->**route add default gateway 192.168.1.1**      #
  355. # To start a VM copy and paste this into the console                       #
  356. ############################################################################
  357. #Use unique Mac addresses for hosts e.g. cc:10, cc:11 see details in post  #
  358. ############################################################################
  359. Examples to copy and paste (Notice unique MAC addresses on each VM 01, 02, 03)
  360. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:01 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  361. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:02 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  362. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:03 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  363. Booting one VM with a MAC address of AA:AA:12:34:56:78 as an example.
  364. When it boots you give it an IP address and gatewat as explanined above.
  365. Type 'ovs-vsctl show' to the the VNIC (tap0) and OVS configuration
  366. ################################################################################
  367. # -More information about what you can do with this Lab at:                    #
  368. # http://networkstatic.net/openflow-and-openvswitch-sdn-lab-scripted-in-minutes#
  369. # Comments at Twitters @networkstatic, Thanks- Brent Salisbury                 #
  370. ################################################################################""")
  371.  
  372. def vxEof():
  373.     print("""############################################################################
  374. # Installation complete! Now start a VM or run the bash script in the post.#
  375. ############################################################################
  376. # Copy and paste all three lines into the console from the SAME directory  #
  377. # you installed the script from that has the downloaded "linux-0.2.img"    #
  378. # image. Do this with in the Ubuntu GUI. Then in the window give it an     #
  379. # address on your subnet and a default gateway in the VM that boots in the #
  380. # QEMU window that pops up. Break out of the QEMU window inside VirtualBox #
  381. # use alt + control + command a few times to free the mouse pointer.       #
  382. # Example IP--> **ifconfig eth0 192.168.1.20 netmask 255.255.255.0**       #
  383. # Example Default Gateway-->**route add default gateway 192.168.1.1**      #
  384. # To start a VM copy and paste this into the console                       #
  385. ############################################################################
  386. #Use unique Mac addresses for hosts e.g. cc:10, cc:11 see details in post  #
  387. ############################################################################
  388. Examples to copy and paste (Notice unique MAC addresses on each VM 01, 02, 03)
  389. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:01 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  390. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:02 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  391. kvm -m 128 -net nic,macaddr=22:22:22:00:cc:03 -net tap,script=/etc/ovs-ifup,downscript=/etc/ovs-ifdown -hda linux-0.2.img &
  392. Booting one VM with a MAC address of AA:AA:12:34:56:78 as an example.
  393. When it boots you give it an IP address and gatewat as explanined above.
  394. Type 'ovs-vsctl show' to the the VNIC (tap0) and OVS configuration
  395. ################################################################################
  396. # -More information about what you can do with this Lab at:                    #
  397. # http://networkstatic.net/openflow-and-openvswitch-sdn-lab-scripted-in-minutes#
  398. # Comments at Twitters @networkstatic, Thanks- Brent Salisbury                 #
  399. ################################################################################""")
  400.  
  401. def main():
  402.     opt = input("""#####################################################################
  403. # This is for lab and learning purposes only to simplify getting    #
  404. # a lab to learn OpenFlow, OpenvSwitch and KVM. The usage is        #
  405. # documented at http://networkstatic.net. I recommend doing these   #
  406. # lab installations with a VM  snapshot to rollback to in           #
  407. # case a setting doesnt fit your install. This will only work on    #
  408. # Ubuntu Linux that has connectivity to the Internet.               #
  409. # For the Impatient :) There are four install builds:               #
  410. # 1) *Base install* KVM & OpenvSwitch, Git(hub), Test Kernel image. #
  411. # 2) Base + FloodLight OpenFlow Controller (Java -Open Source).     #
  412. # 3) Base + POX OpenFlow Controller (Python -Open Source).          #
  413. # 4) Base + OpenvSwitch v1.8.90 with VXlan encapsulation support.   #
  414. #####################################################################
  415. # Press *1* to install the KVM & OpenvSwitch Lab:                   #
  416. # Option 1 includes Git(GitHub), KVM, OpenvSwitch, a 16Mb           #
  417. # test guest host image and configures OpenvSwitch for use.         #
  418. # This will only run on *Ubuntu* since it uses apt-get for packages.#
  419. # Run this from the command line in a VM. It will run on a          #
  420. # physical host but will likely cut you off an SSH session since    #
  421. # it changes your eth0 IP to the new OpenvSwitch br-int interface.  #
  422. #####################################################################
  423. # Press *2* for the base applications along with the Floodlight     #
  424. # OpenFlow Controller. The controller and OpenvSwitch processes     #
  425. # are started in the application and OpenvSwitch is attached.       #
  426. #####################################################################
  427. # Press *3* for the base applications along with the Floodlight     #
  428. # OpenFlow Controller. The controller and OpenvSwitch processes     #
  429. # are started in the application and OpenvSwitch is attached to     #
  430. # the controller by the App.                                        #
  431. #####################################################################
  432. # Press *4* for the base applications with a developmentatl build   #
  433. # of OpenvSwitch that includes the VXLan L2 encapsulation.          #
  434. # This OVS build comes from Mestery at Cisco and Pfaff at Nacira    #
  435. # and is getting pulled from GitHub. This option includes the       #
  436. # OpenvSwitch OF controller with it.                                #
  437. Here is a tutorial for configuring VXLan tunnels if you choose #4   #
  438. http://networkstatic.net/configuring-vxlan-and-gre-tunnels-on-openvswitch/
  439. #####################################################################
  440. # At then end of the App one example VM is booted at the end of the #
  441. # program. If the inststall fails, tshoot and restore your orig VM  #
  442. # Installation host does not support HW virtualization KVM defaults #
  443. # to QEMU which is why it is nice using this small Linux Kernel     #
  444. # since all we need for testing applications is something that has  #
  445. # a client IP stack/functionality. Run the app as root e.g.         #
  446. # "$sudo passwd root" set a passwd then "su" and 'python script.py' #
  447. #####################################################################
  448. # Labs that can be used when you have your VMs up can be found here:#
  449. # http://networkstatic.net/openflow-starter-tutorial-lab-1/         #
  450. # This works very well with VMware Fusion from my testing, I have   #
  451. # seen some issues with VirtualBox talking outside of the VMs spun  #
  452. # up, but you really just need the VMs talking to eachother with    #
  453. # to do labs with an OpenFlow controller. VM Fusion is g2g tho. I   #
  454. # havent tested on a Linux or Windows host yet but it should work   #
  455. # fine on both as Python is cross platform goodness. Cheers! -Brent #
  456. #####################################################################
  457. """'\nEnter Option 1, 2, 3 or 4 (Control+C to quit): ')
  458.     print('')
  459.     if opt == 1:
  460.         print('Installing SDN Lab #1..\n')
  461.         #Install Lab for KVM and OpenvSwitch testing.
  462.         #Get the default gateway
  463.         GW = subprocess.check_output("""route -n | grep 'UG[ \t]' | awk '{print $2}'""", shell=True)
  464.         strGW = GW.strip()
  465.         #Get the IP address bound to eth0 we will move this to br0
  466.         IP = subprocess.check_output("""ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'""", shell=True)
  467.         strIP = IP.strip()
  468.         Netmask = subprocess.check_output("""ifconfig eth0 | sed -rn '2s/ .*:(.*)$/\1/p'""", shell=True)
  469.         strNetMask = Netmask.strip()
  470.         git()
  471.         kvm()
  472.         OVSinst()
  473.         images()
  474.         etcifup()
  475.         etcifdown()
  476.         OVSconf()
  477.         IPaddrs(strGW, strIP, strNetMask)
  478.         msgEof()
  479.         boot()
  480.        
  481.     elif opt == 2:
  482.         #Install Lab w/FloodLight Controller OpenFlow along with KVM and OpenvSwitch
  483.         print('Installing SDN Lab #2...\n')
  484.         # the main code goes here
  485.         #Get the default gateway
  486.         GW = subprocess.check_output("""route -n | grep 'UG[ \t]' | awk '{print $2}'""", shell=True)
  487.         strGW = GW.strip()
  488.         #Get the IP address bound to eth0 we will move this to br0
  489.         IP = subprocess.check_output("""ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'""", shell=True)
  490.         strIP = IP.strip()
  491.         Netmask = subprocess.check_output("""ifconfig eth0 | sed -rn '2s/ .*:(.*)$/\1/p'""", shell=True)
  492.         strNetMask = Netmask.strip()
  493.         git()
  494.         kvm()
  495.         OVSinstOF()
  496.         images()
  497.         etcifup()
  498.         etcifdown()
  499.         ovsOFconf(strIP)
  500.         IPaddrs(strGW, strIP, strNetMask)
  501.         floodlight()
  502.         floodEof(strIP)
  503.         boot()
  504.        
  505.     elif opt == 3:
  506.         #Install Lab w/POX Controller OpenFlow along with KVM and OpenvSwitch
  507.         print('Installing SDN Lab #3...\n')
  508.         # the main code goes here
  509.         #Get the default gateway
  510.         GW = subprocess.check_output("""route -n | grep 'UG[ \t]' | awk '{print $2}'""", shell=True)
  511.         strGW = GW.strip()
  512.         #Get the IP address bound to eth0 we will move this to br0
  513.         IP = subprocess.check_output("""ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'""", shell=True)
  514.         strIP = IP.strip()
  515.         Netmask = subprocess.check_output("""ifconfig eth0 | sed -rn '2s/ .*:(.*)$/\1/p'""", shell=True)
  516.         strNetMask = Netmask.strip()
  517.         git()
  518.         kvm()
  519.         OVSinstOF()
  520.         ovsOFconf(strIP)
  521.         images()
  522.         etcifup()
  523.         etcifdown()
  524.         ovsOFconf(strIP)
  525.         IPaddrs(strGW, strIP, strNetMask)
  526.         pox()
  527.         poxEof()
  528.         boot()
  529.    
  530.     elif opt == 4:
  531.         print('Installing SDN Lab #4..\n')
  532.         #Install Lab for KVM and OpenvSwitch testing.
  533.         #Get the default gateway
  534.         GW = subprocess.check_output("""route -n | grep 'UG[ \t]' | awk '{print $2}'""", shell=True)
  535.         strGW = GW.strip()
  536.         #Get the IP address bound to eth0 we will move this to br0
  537.         IP = subprocess.check_output("""ifconfig eth0 | awk '/inet addr/ {split ($2,A,":"); print A[2]}'""", shell=True)
  538.         strIP = IP.strip()
  539.         Netmask = subprocess.check_output("""ifconfig eth0 | sed -rn '2s/ .*:(.*)$/\1/p'""", shell=True)
  540.         strNetMask = Netmask.strip()
  541.         git()
  542.         kvm()
  543.         ovsVXinst()
  544.         images()
  545.         etcifup()
  546.         etcifdown()
  547.         OVSconf()
  548.         IPaddrs(strGW, strIP, strNetMask)
  549.         vxEof()
  550.         boot()
  551.        
  552.     else:
  553.         exit()
  554.  
  555.  
  556. if __name__ == "__main__":
  557.     main()
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