From 064af42167bf4fc9aaea2702d80ce08074b889c0 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Wed, 8 Jul 2009 13:19:16 -0700 Subject: Import from old repository commit 61ef2b42a9c4ba8e1600f15bb0236765edc2ad45. --- xenserver/etc_xapi.d_plugins_vswitch-cfg-update | 123 ++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100755 xenserver/etc_xapi.d_plugins_vswitch-cfg-update (limited to 'xenserver/etc_xapi.d_plugins_vswitch-cfg-update') diff --git a/xenserver/etc_xapi.d_plugins_vswitch-cfg-update b/xenserver/etc_xapi.d_plugins_vswitch-cfg-update new file mode 100755 index 00000000..b21cf46d --- /dev/null +++ b/xenserver/etc_xapi.d_plugins_vswitch-cfg-update @@ -0,0 +1,123 @@ +#!/usr/bin/env python +# +# xapi plugin script to update the cache of configuration items in the +# ovs-vswitchd configuration file that are managed in the xapi database +# when integrated with Citrix management tools. + +# Copyright (C) 2009 Nicira Networks, Inc. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# TBD: - error handling needs to be improved. Currently this can leave +# TBD: the system in a bad state if anything goes wrong. + +import logging +log = logging.getLogger("vswitch-cfg-update") +logging.basicConfig(filename="/var/log/vswitch-cfg-update.log", level=logging.DEBUG) + +import XenAPIPlugin +import XenAPI +import subprocess + +cfg_mod="/root/vswitch/bin/ovs-cfg-mod" +vswitchd_cfg_filename="/etc/ovs-vswitchd.conf" + +def update(session, args): + pools = session.xenapi.pool.get_all() + # We assume there is only ever one pool... + if len(pools) == 0: + log.error("No pool for host.") + raise XenAPIPlugin.Failure("NO_POOL_FOR_HOST", []) + if len(pools) > 1: + log.error("More than one pool for host.") + raise XenAPIPlugin.Failure("MORE_THAN_ONE_POOL_FOR_HOST", []) + pool = session.xenapi.pool.get_record(pools[0]) + try: + controller = pool["other_config"]["vSwitchController"] + except KeyError, e: + controller = "" + currentController = vswitchCurrentController() + if controller == "" and currentController != "": + log.debug("Removing controller configuration.") + removeControllerCfg() + return "Successfully removed controller config" + elif controller != currentController: + if len(controller) == 0: + log.debug("Setting controller to: %s" % (controller)) + else: + log.debug("Changing controller from %s to %s" % (currentController, controller)) + setControllerCfg(controller) + return "Successfully set controller to " + controller + else: + log.debug("No change to controller configuration required.") + return "No change to configuration" + +def vswitchCurrentController(): + controller = vswitchCfgQuery("mgmt.controller") + if controller == "": + return controller + if len(controller) < 4 or controller[0:4] != "ssl:": + log.warning("Controller does not specify ssl connection type, returning entire string.") + return controller + else: + return controller[4:] + +def removeControllerCfg(): + vswitchCfgMod(["--del-match", "mgmt.controller=*", + "--del-match", "ssl.bootstrap-ca-cert=*", + "--del-match", "ssl.ca-cert=*", + "--del-match", "ssl.private-key=*", + "--del-match", "ssl.certificate=*"]) + +def setControllerCfg(controller): + vswitchCfgMod(["--del-match", "mgmt.controller=*", + "--del-match", "ssl.bootstrap-ca-cert=*", + "--del-match", "ssl.ca-cert=*", + "--del-match", "ssl.private-key=*", + "--del-match", "ssl.certificate=*", + "-a", "mgmt.controller=ssl:" + controller, + "-a", "ssl.bootstrap-ca-cert=true", + "-a", "ssl.ca-cert=/etc/ovs-vswitchd.cacert", + "-a", "ssl.private-key=/etc/xensource/xapi-ssl.pem", + "-a", "ssl.certificate=/etc/xensource/xapi-ssl.pem"]) + +def vswitchCfgQuery(key): + cmd = [cfg_mod, "--config-file=" + vswitchd_cfg_filename, "-q", key] + output = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate() + if len(output) == 0 or output[0] == None: + output = "" + else: + output = output[0].strip() + return output + +def vswitchCfgMod(action_args): + cmd = [cfg_mod, "-vANY:console:emer", + "--config-file=" + vswitchd_cfg_filename] + action_args + exitcode = subprocess.call(cmd) + if exitcode != 0: + log.error("ovs-cfg-mod failed with exit code " + + str(exitcode) + " for " + repr(action_args)) + raise XenAPIPlugin.Failure("VSWITCH_CONFIG_MOD_FAILURE", + [ str(exitcode) , str(action_args) ]) + vswitchReload() + +def vswitchReload(): + exitcode = subprocess.call(["/sbin/service", "vswitch", "reload"]) + if exitcode != 0: + log.error("vswitch reload failed with exit code " + str(exitcode)) + raise XenAPIPlugin.Failure("VSWITCH_CFG_RELOAD_FAILURE", [ str(exitcode) ]) + + +if __name__ == "__main__": + XenAPIPlugin.dispatch({"update": update}) -- cgit v1.2.3