X-Git-Url: https://scripts.mit.edu/gitweb/xen.git/blobdiff_plain/209174d728ab1da8694eaedfb2a5f42cc0edbd2d..HEAD:/scripts-server

diff --git a/scripts-server b/scripts-server
index d3a827a..2c5ce79 100644
--- a/scripts-server
+++ b/scripts-server
@@ -12,16 +12,17 @@ vm_host = 0
 vm_cpus = 1
 vm_mem  = 2
 vm_mac5 = 3
-machines = { 'bees-knees'     : ['david-letterman',  2, 6144, 10],
-             'cats-whiskers'  : ['david-letterman',  2, 6144, 20],
-             'not-backward'   : ['david-letterman',  2, 2560, 30],
-             'busy-beaver'    : ['conan-obrien',     2, 4096, 40],
-             'pancake-bunny'  : ['conan-obrien',     2, 4096, 50],
-             'whole-enchilada': ['jay-leno',         1, 2048, 60],
-             'real-mccoy'     : ['jay-leno',         2, 4096, 70],
-             'not-forward'    : ['jay-leno',         2,  512, 80],
-             'old-faithful'   : ['johnny-carson',    2, 4096, 90],
-             'better-mousetrap' : ['johnny-carson',  2, 4096,100],
+machines = { 'bees-knees'     : ['david-letterman',  2, 2560, '10'],
+             'cats-whiskers'  : ['david-letterman',  2, 6144, '20'],
+             'not-backward'   : ['david-letterman',  2, 2560, '30'],
+             'busy-beaver'    : ['conan-obrien',     2, 4096, '40'],
+             'pancake-bunny'  : ['conan-obrien',     2, 4096, '50'],
+             'whole-enchilada': ['jay-leno',         2, 4096, '60'],
+             'real-mccoy'     : ['jay-leno',         2, 4096, '70'],
+             'not-forward'    : ['jay-leno',         1,  512, '80'],
+             'old-faithful'   : ['johnny-carson',    2, 4096, '90'],
+             'better-mousetrap' : ['johnny-carson',  2, 4096, 'a0'],
+             'shining-armor'  : ['david-letterman',  2, 6144, 'b0'],
            }
 vm = machines[machine_name]
 
@@ -38,65 +39,85 @@ def maybe_download_isolinux(install):
   if os.path.exists(install_dir): return
   print "Downloading %s..." % install_dir
   fedora_release = install[1:],
-  download_dir = "ftp://mirrors.mit.edu/fedora/linux/releases/%s/Fedora/x86_64/os" % fedora_release
+  download_dir = "ftp://mirrors.mit.edu/fedora/linux/releases/%s/Fedora/x86_64/os/isolinux" % fedora_release
   os.mkdir(install_dir)
   subprocess.check_call(["wget", "-r", "-nd", download_dir], cwd=install_dir)
 
-def make_ramdisk(base_image, machine_name, install):
+def serve_kickstart(machine_name, install):
   """
-  Create a ramdisk containing our kickstart file in /root/kickstart.ks
+  Serve a parametrized /root/kickstart.ks to localhost once.
   """
   import socket
-  import tempfile
-  import subprocess
-  import os
-  import os.path
-  import gzip
-  import StringIO
   import string
-  import shutil
+  import re
+  import os
+  import BaseHTTPServer
+  import sys
 
   # some calculations
   hostname = machine_name + ".mit.edu"
   ip = socket.gethostbyname(hostname)
 
-  # create the playground
-  tmpdir = tempfile.mkdtemp()
-  rootdir = os.path.join(tmpdir, "root")
+  source_server = "shining-armor.mit.edu" # hard-coded
+  source_ip = re.sub('^18.181.0.', '172.21.0.', socket.gethostbyname(source_server))
 
-  # add the kickstart file
-  os.mkdir(rootdir)
+  # generate the kickstart file
   ks_orig = open("/etc/xen/scripts.ks").read()
   ks = string.Template(ks_orig).substitute(
     local_mirror = "ftp://mirrors.mit.edu",
     official_mirror = "http://download3.fedora.redhat.com/pub",
     arch = "x86_64",
-    fedora_release = install[1:],
+    fedora_release = re.sub('^f', '', install),
     hostname = hostname,
     ip = ip,
+    backend_ip = re.sub('^18.181.0.', '172.21.0.', ip),
+    branch = "branches/fc13-dev",
+    source_server = source_server,
+    source_ip = source_ip,
     )
-  open(os.path.join(rootdir, "scripts.ks"), 'w').write(ks)
-
-  # generate the final image
-  (tmpfd, tmpname) = tempfile.mkstemp(suffix=".img")
-  tmp = os.fdopen(tmpfd, 'w')
-  tmp.write(gzip.open(base_image).read())
-  tmp.close()
-  find = subprocess.Popen(["find", ".", "-depth", "-print"],
-            stdout=subprocess.PIPE, cwd=tmpdir)
-  cpio = subprocess.Popen(["cpio", "-v", "--append", "-o", "--file", tmpname, "-H", "newc"],
-            stdin=find.stdout, cwd=tmpdir)
-  cpio.communicate()
-  find.wait()
-
-  print "Using initramfs at %s" % tmpname
-  return tmpname
+
+  class SingleFileHandler(BaseHTTPServer.BaseHTTPRequestHandler):
+    def do_GET(self):
+      self.send_response(200)
+      self.end_headers()
+      self.wfile.write(ks)
+
+  if os.fork(): return
+
+  # brief race condition
+  try:
+    BaseHTTPServer.HTTPServer(('', 55555), SingleFileHandler).handle_request()
+  except Exception, e:
+    print "Serving kickstart failed."
+    print e
+  else:
+    print "Kickstart served"
+
+  sys.exit()
 
 if 'install' in locals():
-  kernel = "/root/%s-install/vmlinuz" % install
-  extra = "selinux=0 ks=file:/root/scripts.ks"
   maybe_download_isolinux(install)
-  ramdisk = make_ramdisk("/root/%s-install/initrd.img" % install, machine_name, install)
+
+  kernel = "/root/%s-install/vmlinuz" % install
+  ramdisk = "/root/%s-install/initrd.img" % install
+
+  ip = socket.gethostbyname(machine_name + ".mit.edu")
+
+  serve_kickstart(machine_name, install)
+
+  ks_url = "http://%s.mit.edu:55555/" % vm[vm_host]
+  extra = ' '.join([
+      "selinux=0",
+      "ks=" + ks_url,
+      "ip=" + ip,
+      "netmask=255.255.0.0",
+      "gateway=18.181.0.1",
+      "dns=18.70.0.160,18.71.0.151,18.72.0.3",
+      "ksdevice=eth0",
+      # "syslog=18.181.0.51:514 debug=1 loglevel=debug telnet",
+      ])
+  on_reboot = 'destroy' # don't rerun the installer
+
 elif 'type' in locals() and type == 'hvm':
   kernel = "/usr/lib/xen/boot/hvmloader"
   builder = "hvm"