fence_virsh man page

fence_virsh — Fence agent for virsh

Description

fence_virsh is an I/O Fencing agent which can be used with the virtual machines managed by libvirt. It logs via ssh to a dom0 and there run virsh command, which does all work.

By default, virsh needs root account to do properly work. So you must allow ssh login in your sshd_config.

fence_virsh accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent. fence_virsh can be run by itself with command line options.  This is useful for testing and for turning outlets on or off from scripts.

Vendor URL: http://libvirt.org

Parameters

-o, --action=[action]

Fencing action (Default Value: reboot)

-c, --command-prompt=[prompt]

Force Python regex for command prompt (Default Value: ['\[EXPECT\]#\ '])

-k, --identity-file=[filename]

Identity file (private key) for SSH

-4, --inet4-only

Forces agent to use IPv4 addresses only

-6, --inet6-only

Forces agent to use IPv6 addresses only

-a, --ip=[ip]

IP address or hostname of fencing device This parameter is always required.

-u, --ipport=[port]

TCP/UDP port to use for connection with device (Default Value: 22)

-p, --password=[password]

Login password or passphrase

-S, --password-script=[script]

Script to run to retrieve password

-n, --plug=[id]

Physical plug number on device, UUID or identification of machine This parameter is always required.

-x, --ssh

Use SSH connection (Default Value: 1)

--ssh-options=[options]

SSH options to use (Default Value: -t '/bin/bash -c "PS1=\[EXPECT\]#  /bin/bash --noprofile --norc"')

-l, --username=[name]

Login name This parameter is always required.

-q, --quiet

Disable logging to stderr. Does not affect --verbose or --debug-file or logging to syslog.

-v, --verbose

Verbose mode

-D, --debug-file=[debugfile]

Write debug information to given file

-V, --version

Display version information and exit

-h, --help

Display help and exit

-C, --separator=[char]

Separator for CSV created by 'list' operation (Default Value: ,)

--delay=[seconds]

Wait X seconds before fencing is started (Default Value: 0)

--login-timeout=[seconds]

Wait X seconds for cmd prompt after login (Default Value: 5)

--missing-as-off

Missing port returns OFF instead of failure

--power-timeout=[seconds]

Test X seconds for status change after ON/OFF (Default Value: 20)

--power-wait=[seconds]

Wait X seconds after issuing ON/OFF (Default Value: 0)

--shell-timeout=[seconds]

Wait X seconds for cmd prompt after issuing command (Default Value: 3)

--retry-on=[attempts]

Count of attempts to retry power on (Default Value: 1)

--use-sudo

Use sudo (without password) when calling 3rd party software

--ssh-path=[path]

Path to ssh binary (Default Value: /usr/bin/ssh)

--sudo-path=[path]

Path to sudo binary (Default Value: /usr/bin/sudo)

Actions

on

Power on machine.

off

Power off machine.

reboot

Reboot machine.

status

This returns the status of the plug/virtual machine.

list

List available plugs with aliases/virtual machines if there is support for more then one device. Returns N/A otherwise.

list-status

List available plugs with aliases/virtual machines and their power state if it can be obtained without additional commands.

monitor

Check the health of fence device

metadata

Display the XML metadata describing this resource.

validate-all

Validate if all required parameters are entered.

Stdin Parameters

action

Fencing action (Default Value: reboot)

command_prompt

Force Python regex for command prompt (Default Value: ['\[EXPECT\]#\ ']) Obsoletes: cmd_prompt

identity_file

Identity file (private key) for SSH

inet4_only

Forces agent to use IPv4 addresses only

inet6_only

Forces agent to use IPv6 addresses only

ip

IP address or hostname of fencing device This parameter is always required. Obsoletes: ipaddr

ipport

TCP/UDP port to use for connection with device (Default Value: 22)

password

Login password or passphrase Obsoletes: passwd

password_script

Script to run to retrieve password Obsoletes: passwd_script

plug

Physical plug number on device, UUID or identification of machine This parameter is always required. Obsoletes: port

ssh

Use SSH connection (Default Value: 1) Obsoletes: secure

ssh_options

SSH options to use (Default Value: -t '/bin/bash -c "PS1=\[EXPECT\]#  /bin/bash --noprofile --norc"')

username

Login name This parameter is always required. Obsoletes: login

quiet

Disable logging to stderr. Does not affect --verbose or --debug-file or logging to syslog.

verbose

Verbose mode

debug_file

Write debug information to given file Obsoletes: debug

version

Display version information and exit

help

Display help and exit

separator

Separator for CSV created by 'list' operation (Default Value: ,)

delay

Wait X seconds before fencing is started (Default Value: 0)

login_timeout

Wait X seconds for cmd prompt after login (Default Value: 5)

missing_as_off

Missing port returns OFF instead of failure

power_timeout

Test X seconds for status change after ON/OFF (Default Value: 20)

power_wait

Wait X seconds after issuing ON/OFF (Default Value: 0)

shell_timeout

Wait X seconds for cmd prompt after issuing command (Default Value: 3)

retry_on

Count of attempts to retry power on (Default Value: 1)

use_sudo

Use sudo (without password) when calling 3rd party software Obsoletes: sudo

ssh_path

Path to ssh binary (Default Value: /usr/bin/ssh)

sudo_path

Path to sudo binary (Default Value: /usr/bin/sudo)

Info

2009-10-20 fence_virsh (Fence Agent)