--- /dev/null
+#!/usr/bin/python
+#
+# Copyright (c) 2003 Intel Corporation
+# All rights reserved.
+#
+# Copyright (c) 2004-2006 The Trustees of Princeton University
+# All rights reserved.
+# expected /proc/partitions format
+
+import os
+import popen2
+import string
+
+import systeminfo
+from Exceptions import *
+import utils
+import notify_messages
+import BootAPI
+
+
+def Run( vars, log ):
+ """
+ Make sure the hardware we are running on is sufficient for
+ the PlanetLab OS to be installed on. In the process, identify
+ the list of block devices that may be used for a node installation,
+ and identify the cdrom device that we booted off of.
+
+ Return 1 if requiremenst met, 0 if requirements not met. Raise
+ BootManagerException if any problems occur that prevent the requirements
+ from being checked.
+
+ Expect the following variables from the store:
+
+ MINIMUM_MEMORY minimum amount of memory in kb required
+ for install
+ NODE_ID the node_id from the database for this node
+ MINIMUM_DISK_SIZE any disks smaller than this size, in GB, are not used
+ TOTAL_MINIMUM_DISK_SIZE total disk size in GB, if all usable disks
+ meet this number, there isn't enough disk space for
+ this node to be usable after install
+ SKIP_HARDWARE_REQUIREMENT_CHECK
+ If set, don't check if minimum requirements are met
+ Sets the following variables:
+ INSTALL_BLOCK_DEVICES list of block devices to install onto
+ """
+
+ log.write( "\n\nStep: Checking if hardware requirements met.\n" )
+
+ try:
+ MINIMUM_MEMORY= int(vars["MINIMUM_MEMORY"])
+ if MINIMUM_MEMORY == "":
+ raise ValueError, "MINIMUM_MEMORY"
+
+ NODE_ID= vars["NODE_ID"]
+ if NODE_ID == "":
+ raise ValueError("NODE_ID")
+
+ MINIMUM_DISK_SIZE= int(vars["MINIMUM_DISK_SIZE"])
+
+ TOTAL_MINIMUM_DISK_SIZE= \
+ int(vars["TOTAL_MINIMUM_DISK_SIZE"])
+
+ SKIP_HARDWARE_REQUIREMENT_CHECK= \
+ int(vars["SKIP_HARDWARE_REQUIREMENT_CHECK"])
+
+ except KeyError, var:
+ raise BootManagerException, \
+ "Missing variable in install store: %s" % var
+ except ValueError, var:
+ raise BootManagerException, \
+ "Variable in install store blank, shouldn't be: %s" % var
+
+ # lets see if we have enough memory to run
+ log.write( "Checking for available memory.\n" )
+
+ total_mem= systeminfo.get_total_phsyical_mem(vars, log)
+ if total_mem is None:
+ raise BootManagerException, "Unable to read total physical memory"
+
+ if total_mem < MINIMUM_MEMORY:
+ if not SKIP_HARDWARE_REQUIREMENT_CHECK:
+ log.write( "Insufficient memory to run node: %s kb\n" % total_mem )
+ log.write( "Required memory: %s kb\n" % MINIMUM_MEMORY )
+
+ include_pis= 0
+ include_techs= 1
+ include_support= 0
+
+ sent= 0
+ try:
+ sent= BootAPI.call_api_function( vars, "BootNotifyOwners",
+ (notify_messages.MSG_INSUFFICIENT_MEMORY,
+ include_pis,
+ include_techs,
+ include_support) )
+ except BootManagerException, e:
+ log.write( "Call to BootNotifyOwners failed: %s.\n" % e )
+
+ if sent == 0:
+ log.write( "Unable to notify site contacts of problem.\n" )
+ else:
+ log.write( "Notified contacts of problem.\n" )
+
+ return 0
+ else:
+ log.write( "Memory requirements not met, but running anyway: %s kb\n"
+ % total_mem )
+ else:
+ log.write( "Looks like we have enough memory: %s kb\n" % total_mem )
+
+
+
+ # get a list of block devices to attempt to install on
+ # (may include cdrom devices)
+ install_devices= systeminfo.get_block_device_list(vars, log)
+
+ # save the list of block devices in the log
+ log.write( "Detected block devices:\n" )
+ log.write( repr(install_devices) + "\n" )
+
+ if not install_devices or len(install_devices) == 0:
+ log.write( "No block devices detected.\n" )
+
+ include_pis= 0
+ include_techs= 1
+ include_support= 0
+
+ sent= 0
+ try:
+ sent= BootAPI.call_api_function( vars, "BootNotifyOwners",
+ (notify_messages.MSG_INSUFFICIENT_DISK,
+ include_pis,
+ include_techs,
+ include_support) )
+ except BootManagerException, e:
+ log.write( "Call to BootNotifyOwners failed: %s.\n" % e )
+
+ if sent == 0:
+ log.write( "Unable to notify site contacts of problem.\n" )
+
+ return 0
+
+ # now, lets remove any block devices we know won't work (readonly,cdroms),
+ # or could be other writable removable disks (usb keychains, zip disks, etc)
+ # i'm not aware of anything that helps with the latter test, so,
+ # what we'll probably do is simply not use any block device below
+ # some size threshold (set in installstore)
+
+ # also, keep track of the total size for all devices that appear usable
+ total_size= 0
+
+ for device in install_devices.keys():
+
+ (major,minor,blocks,gb_size,readonly)= install_devices[device]
+
+ # if the device string starts with
+ # planetlab or dm- (device mapper), ignore it (could be old lvm setup)
+ if device[:14] == "/dev/planetlab" or device[:8] == "/dev/dm-":
+ del install_devices[device]
+ continue
+
+ if gb_size < MINIMUM_DISK_SIZE:
+ log.write( "Device is too small to use: %s \n(appears" \
+ " to be %4.2f GB)\n" % (device,gb_size) )
+ try:
+ del install_devices[device]
+ except KeyError, e:
+ pass
+ continue
+
+ if readonly:
+ log.write( "Device is readonly, not using: %s\n" % device )
+ try:
+ del install_devices[device]
+ except KeyError, e:
+ pass
+ continue
+
+ # add this sector count to the total count of usable
+ # sectors we've found.
+ total_size= total_size + gb_size
+
+
+ if len(install_devices) == 0:
+ log.write( "No suitable block devices found for install.\n" )
+
+ include_pis= 0
+ include_techs= 1
+ include_support= 0
+
+ sent= 0
+ try:
+ sent= BootAPI.call_api_function( vars, "BootNotifyOwners",
+ (notify_messages.MSG_INSUFFICIENT_DISK,
+ include_pis,
+ include_techs,
+ include_support) )
+ except BootManagerException, e:
+ log.write( "Call to BootNotifyOwners failed: %s.\n" % e )
+
+ if sent == 0:
+ log.write( "Unable to notify site contacts of problem.\n" )
+
+ return 0
+
+
+ # show the devices we found that are usable
+ log.write( "Usable block devices:\n" )
+ log.write( repr(install_devices.keys()) + "\n" )
+
+ # save the list of devices for the following steps
+ vars["INSTALL_BLOCK_DEVICES"]= install_devices.keys()
+
+
+ # ensure the total disk size is large enough. if
+ # not, we need to email the tech contacts the problem, and
+ # put the node into debug mode.
+ if total_size < TOTAL_MINIMUM_DISK_SIZE:
+ if not SKIP_HARDWARE_REQUIREMENT_CHECK:
+ log.write( "The total usable disk size of all disks is " \
+ "insufficient to be usable as a PlanetLab node.\n" )
+ include_pis= 0
+ include_techs= 1
+ include_support= 0
+
+ sent= 0
+ try:
+ sent= BootAPI.call_api_function( vars, "BootNotifyOwners",
+ (notify_messages.MSG_INSUFFICIENT_DISK,
+ include_pis,
+ include_techs,
+ include_support) )
+ except BootManagerException, e:
+ log.write( "Call to BootNotifyOwners failed: %s.\n" % e )
+
+ if sent == 0:
+ log.write( "Unable to notify site contacts of problem.\n" )
+
+ return 0
+
+ else:
+ log.write( "The total usable disk size of all disks is " \
+ "insufficient, but running anyway.\n" )
+
+ log.write( "Total size for all usable block devices: %4.2f GB\n" % total_size )
+
+ return 1
git://git.onelab.eu / bootmanager.git / blobdiff