dejanmm at fastmail
Aug 20, 2009, 7:49 AM
Post #3 of 7
(1131 views)
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Re: vsphere stonith, squid3 agent for debian lenny and example configuration
[In reply to]
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Hi,
On Thu, Aug 20, 2009 at 11:07:15AM +0200, Thomas Glanzmann wrote:
> Hello,
> find attached, a vsphere (works with esx-server 3/4 virual center 2.X
> and 4) stonith plugin, a squid3 resource agent for debian lenny and a
> example configuration.
Here my comments about the vsphere plugin:
0. What is the difference and why would one want to use this
plugin instead of the existing external/vmware?
1. Parameter names:
vm
VI_SERVER
VI_USERNAME
VI_PASSWORD
I know that it's a matter of taste, but I think that most plugins
accept "hostlist" for what you named "vm". Also, I'd personally
prefer lowercase names (or partly lowercase) for other parameters
because that way it won't stick out so much in the CIB.
2. There is quite a bit of code repetition for all three actions
(poweron, poweroff, reset) when reading the reply. That should be
put in a separate function.
3. The lines are way too long, had to stretch my terminal to 120
columns, i.e. it's really hard to follow on the standard 80col
terminal.
4. Is there a better check status, i.e. not just
connect/disconnect, where one could actually test if the given
username/password work and that the virtual machine can be
rebooted?
Cheers,
Dejan
> Thomas
> use_logd yes
> bcast eth0
> node ha-01 ha-02
> watchdog /dev/watchdog
> crm on
> #!/bin/sh
>
> if [ -z "${OCF_ROOT}" ]; then
> export OCF_ROOT=/usr/lib/ocf/
> fi
>
> . ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
>
> SQUID_PORT=3128
> INIT_SCRIPT=/etc/init.d/squid3
> PID=/var/run/squid3.pid
> CHECK_URLS="http://www.google.de/ http://www.glanzmann.de/ http://www.uni-erlangen.de"
>
> case "$1" in
> start)
> if [ -f "${PID}" ]; then
> kill -0 `cat ${PID}` &> /dev/null && exit 0;
>
> else
> rm -f "${PID}"
> fi
>
> ${INIT_SCRIPT} start > /dev/null 2>&1 && exit || exit 1
> ;;
>
> stop)
> if [ -f "${PID}" ]; then
> ${INIT_SCRIPT} stop > /dev/null 2>&1 && exit || exit 1
> fi
>
> exit 0;
> ;;
>
> status)
> if [ -f "${PID}" ]; then
> kill -0 `cat ${PID}` && exit;
> fi
>
> exit 1;
> ;;
>
> monitor)
> if [ -f "${PID}" ]; then
> kill -0 `cat ${PID}` || exit 7
> else
> exit 7;
> fi
>
> for URL in ${CHECK_URLS}; do
> http_proxy=http://localhost:${SQUID_PORT}/ wget -o /dev/null -O /dev/null -T 1 -t 1 ${URL} && exit
> done
>
> exit 1;
> ;;
>
> meta-data)
> cat <<END
> <?xml version="1.0"?>
> <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
> <resource-agent name="squid">
> <version>1.0</version>
>
> <longdesc lang="en">
> OCF Ressource Agent on top of squid init script shipped with debian.
> </longdesc>
>
> <shortdesc lang="en">OCF Ressource Agent on top of squid init script
> shipped with debian.</shortdesc>
>
> <actions>
> <action name="start" timeout="90" />
> <action name="stop" timeout="100" />
> <action name="status" timeout="60" />
> <action name="monitor" depth="0" timeout="30s" interval="10s" start-delay="10s" />
> <action name="meta-data" timeout="5s" />
> <action name="validate-all" timeout="20s" />
> </actions>
> </resource-agent>
> END
> ;;
> esac
> #!/usr/bin/perl
>
> use strict;
> use warnings FATAL => 'all';
>
> # Thomas Glanzmann 10:28 09-08-19
> # apt-get install libarchive-zip-perl libclass-methodmaker-perl libcompress-raw-zlib-perl libcompress-zlib-perl libcompress-zlib-perl libdata-dump-perl libio-compress-base-perl libio-compress-zlib-perl libsoap-lite-perl liburi-perl libuuid-perl libxml-libxml-perl libxml-libxml-common-perl libxml-namespacesupport-perl libwww-perl
> # tar xfz ~/VMware-vSphere-SDK-for-Perl-4.0.0-161974.i386.tar.gz
> # answer all questins with no
>
> use lib '/usr/lib/vmware-vcli/apps/';
> use VMware::VIRuntime;
> use AppUtil::VMUtil;
>
> sub
> connect
> {
> Opts::parse();
> Opts::validate();
> Util::connect();
> }
>
> my $vm_views = undef;
>
> sub poweron_vm {
> foreach (@$vm_views) {
> my $mor_host = $_->runtime->host;
> my $hostname = Vim::get_view(mo_ref => $mor_host)->name;
> eval {
> $_->PowerOnVM();
> Util::trace(0, "\nvirtual machine '" . $_->name .
> "' under host $hostname powered on \n");
> };
> if ($@) {
> if (ref($@) eq 'SoapFault') {
> Util::trace (0, "\nError in '" . $_->name . "' under host $hostname: ");
> if (ref($@->detail) eq 'NotSupported') {
> Util::trace(0,"Virtual machine is marked as a template ");
>
> } elsif (ref($@->detail) eq 'InvalidPowerState') {
> Util::trace(0, "The attempted operation".
> " cannot be performed in the current state" );
>
> } elsif (ref($@->detail) eq 'InvalidState') {
> Util::trace(0,"Current State of the "
> ." virtual machine is not supported for this operation");
>
> } else {
> Util::trace(0, "VM '" .$_->name.
> "' can't be powered on \n" . $@ . "" );
> }
>
> } else {
> Util::trace(0, "VM '" .$_->name.
> "' can't be powered on \n" . $@ . "" );
> }
> Util::disconnect();
> exit 1;
> }
> }
> }
>
> sub poweroff_vm {
> foreach (@$vm_views) {
> my $mor_host = $_->runtime->host;
> my $hostname = Vim::get_view(mo_ref => $mor_host)->name;
> eval {
> $_->PowerOffVM();
> Util::trace (0, "\nvirtual machine '" . $_->name .
> "' under host $hostname powered off ");
> };
>
> if ($@) {
> if (ref($@) eq 'SoapFault') {
> Util::trace (0, "\nError in '" . $_->name . "' under host $hostname: ");
> if (ref($@->detail) eq 'InvalidPowerState') {
> Util::trace(0, "The attempted operation".
> " cannot be performed in the current state" );
>
> } elsif (ref($@->detail) eq 'InvalidState') {
> Util::trace(0,"Current State of the".
> " virtual machine is not supported for this operation");
>
> } elsif(ref($@->detail) eq 'NotSupported') {
> Util::trace(0,"Virtual machine is marked as template");
>
> } else {
> Util::trace(0, "VM '" .$_->name. "' can't be powered off \n"
> . $@ . "" );
> }
>
> } else {
> Util::trace(0, "VM '" .$_->name. "' can't be powered off \n" . $@ . "" );
> }
> Util::disconnect();
> exit 1;
> }
> }
> }
>
> sub reset_vm {
> foreach (@$vm_views) {
> my $mor_host = $_->runtime->host;
> my $hostname = Vim::get_view(mo_ref => $mor_host)->name;
> eval {
> $_->ResetVM();
> Util::trace(0, "\nvirtual machine '" . $_->name . "' under host".
> " $hostname reset successfully ");
> };
> if ($@) {
> if (ref($@) eq 'SoapFault') {
> Util::trace (0, "\nError in '" . $_->name . "' under host $hostname: ");
> if (ref($@->detail) eq 'InvalidState') {
> Util::trace(0,"Host is in maintenance mode");
>
> } elsif (ref($@->detail) eq 'InvalidPowerState') {
> Util::trace(0, "The attempted operation".
> " cannot be performed in the current state" );
>
> } elsif (ref($@->detail) eq 'NotSupported') {
> Util::trace(0,"Virtual machine is marked as a template ");
>
> } else {
> Util::trace(0, "VM '" .$_->name. "' can't be reset \n" . $@ . "");
> }
>
> } else {
> Util::trace(0, "VM '" .$_->name. "' can't be reset \n" . $@ . "");
> }
> Util::disconnect();
> exit 1;
> }
> }
> }
>
> if ($ARGV[0] eq 'gethosts') {
> &connect;
> $vm_views = VMUtils::get_vms ('VirtualMachine', $ENV{'vm'});
> foreach (@$vm_views) {
> print $_->{name} . "\n";
> }
> Util::disconnect();
>
> } elsif ($ARGV[0] eq 'on') {
> &connect;
> $vm_views = VMUtils::get_vms ('VirtualMachine', $ENV{'vm'});
> poweron_vm;
> Util::disconnect();
>
> } elsif ($ARGV[0] eq 'off') {
> &connect;
> $vm_views = VMUtils::get_vms ('VirtualMachine', $ENV{'vm'});
> poweroff_vm;
> Util::disconnect();
>
> } elsif ($ARGV[0] eq 'reset') {
> &connect;
> $vm_views = VMUtils::get_vms ('VirtualMachine', $ENV{'vm'});
> reset_vm;
> Util::disconnect();
>
> } elsif ($ARGV[0] eq 'status') {
> &connect;
> Util::disconnect();
>
> } elsif ($ARGV[0] eq 'getconfignames') {
> print <<EOF;
> vm
> VI_SERVER
> VI_USERNAME
> VI_PASSWORD
> EOF
>
> } elsif ($ARGV[0] eq 'getinfo-devid') {
> print "vSphere STONITH device\n";
>
> } elsif ($ARGV[0] eq 'getinfo-devname') {
> print "vSphere STONITH external device\n";
>
> } elsif ($ARGV[0] eq 'getinfo-devdescr') {
> print "vSphere-based host reset\n";
>
> } elsif ($ARGV[0] eq 'getinfo-devurl') {
> print "http://www.vmware.com/support/developer/viperltoolkit/\n"
>
> } elsif ($ARGV[0] eq 'getinfo-xml') {
> print <<IPMIXML
> <parameters>
> <parameter name="vm" unique="1">
> <content type="string" />
> <shortdesc lang="en">
> vm to reset
> </shortdesc>
> <longdesc lang="en">
> The name of the host to be managed by this STONITH device
> </longdesc>
> </parameter>
>
> <parameter name="VI_SERVER" unique="1">
> <content type="string" />
> <shortdesc lang="en">
> IP Address
> </shortdesc>
> <longdesc lang="en">
> The IP address of the ESX server or vSphere Center
> </longdesc>
> </parameter>
>
> <parameter name="VI_USERNAME" unique="1">
> <content type="string" />
> <shortdesc lang="en">
> Login
> </shortdesc>
> <longdesc lang="en">
> The username used for logging in to the ESX server or vSphere Center
> </longdesc>
> </parameter>
>
> <parameter name="VI_PASSWORD" unique="1">
> <content type="string" />
> <shortdesc lang="en">
> Password
> </shortdesc>
> <longdesc lang="en">
> The password used for logging in to the ESX server or vSphere Center
> </longdesc>
> </parameter>
> </parameters>
> IPMIXML
>
> } else {
> exit 1
> }
> _______________________________________________
> Linux-HA mailing list
> Linux-HA [at] lists
> http://lists.linux-ha.org/mailman/listinfo/linux-ha
> See also: http://linux-ha.org/ReportingProblems
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