FENCE_AGENT(8)

πŸ“¦
version 4.17.0 Β· 4 versions
, in centos-stream 10, debian trixie, fedora 43, fedora 44, opensuse-leap 16.0, ubuntu questing, ubuntu resolute, ubuntu stonking

πŸ’– FENCE_AGENT(8) πŸ’–

okay bestie, sit down, grab a boba, because we're about to read a whole System Manager's Manual page together and honestly? it's giving iconic. this is the FENCE_AGENT(8) page, section 8, and it's all about the HP iLO SSH fence agents. let's get into it ✨


🌸 NAME 🌸

  • fence_ilo_ssh β€” Fence agent for HP iLO over SSH
  • fence_ilo3_ssh β€” Fence agent for HP iLO3 over SSH (symlink)
  • fence_ilo4_ssh β€” Fence agent for HP iLO4 over SSH (symlink)
  • fence_ilo5_ssh β€” Fence agent for HP iLO5 over SSH (symlink)

so like, one real agent and three little symlink besties tagging along πŸ’…


✨ DESCRIPTION ✨

fence_ilo_ssh is a Power Fencing agent that connects to an iLO device. it logs into the device via ssh and reboots a specified outlet. that's the whole vibe, fr fr.

⚠️ WARNING: the monitor action is prone to timeouts. use the fence_ilo-equivalent to avoid this issue. no cap, this one matters 😭

the fence agent accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent. but here's the cute part β€” the agent can also be run by itself with command line options. super useful for testing and for turning outlets on or off from scripts 🫢

Vendor URL: http://www.hp.com


πŸŽ€ PARAMETERS πŸŽ€

  • -o, --action=[action] β€” the fencing action you want to happen (Default Value: reboot)
  • -c, --command-prompt=[prompt] β€” force a Python regex for the command prompt (Default Value: ['MP>', 'hpiLO->'])
  • -k, --identity-file=[filename] β€” identity file (private key) for SSH πŸ”‘
  • -4, --inet4-only β€” forces the agent to use IPv4 addresses only
  • -6, --inet6-only β€” forces the agent to use IPv6 addresses only
  • -a, --ip=[ip] β€” IP address or hostname of the fencing device
  • -u, --ipport=[port] β€” TCP/UDP port to use for connection with the device (Default Value: 23)
  • -m, --method=[method] β€” method to fence, onoff|cycle (Default Value: onoff)
  • -p, --password=[password] β€” login password or passphrase
  • -S, --password-script=[script] β€” script to run to retrieve the password
  • -n, --plug=[ip] β€” IP address or hostname of the fencing device (together with --port-as-ip)
  • -x, --ssh β€” use SSH connection
  • --ssh-options=[options] β€” SSH options to use
  • -l, --username=[name] β€” login name. This parameter is always required. (yes, always. don't forget it πŸ’€)
  • -q, --quiet β€” disable logging to stderr. does not affect --verbose or --debug-file or logging to syslog.
  • -v, --verbose β€” verbose mode. multiple -v flags can be stacked on the command line (e.g., -vvv) to increase verbosity. stacking flags is the moment ✨
  • --verbose-level β€” level of debugging detail in output. defaults to the number of --verbose flags specified on the command line, or to 1 if verbose=1 in a stonith device configuration (i.e., on stdin).
  • -D, --debug-file=[debugfile] β€” write debug information to the given file
  • -V, --version β€” display version information and exit
  • -h, --help β€” display help and exit
  • --plug-separator=[char] β€” separator for the plug parameter when specifying more than 1 plug (Default Value: ,)
  • --delay=[seconds] β€” wait X seconds before fencing is started (Default Value: 0)
  • --disable-timeout=[true/false] β€” disable timeout (true/false) (default: true when run from Pacemaker 2.0+)
  • --login-timeout=[seconds] β€” wait X seconds for cmd prompt after login (Default Value: 5)
  • --port-as-ip β€” make "port/plug" be an alias to IP address
  • --power-timeout=[seconds] β€” test X seconds for status change after ON/OFF (Default Value: 20)
  • --power-wait=[seconds] β€” wait X seconds after issuing ON/OFF (Default Value: 5)
  • --shell-timeout=[seconds] β€” wait X seconds for cmd prompt after issuing a command (Default Value: 3)
  • --stonith-status-sleep=[seconds] β€” sleep X seconds between status calls during a STONITH action (Default Value: 1)
  • --retry-on=[attempts] β€” count of attempts to retry power on (Default Value: 1)
  • --ssh-path=[path] β€” path to the ssh binary (Default Value: /usr/bin/ssh)
  • --telnet-path=[path] β€” path to the telnet binary (Default Value: /usr/bin/telnet)

πŸ”₯ ACTIONS πŸ”₯

  • on β€” power on machine. ⚑
  • off β€” power off machine.
  • reboot β€” reboot machine. πŸ”„
  • status β€” this returns the status of the plug/virtual machine.
  • monitor β€” check the health of the fence device.
  • metadata β€” display the XML metadata describing this resource.
  • manpage β€” the operational behavior of this is not known. (literally what it says, i'm not gonna pretend otherwise πŸ™ˆ)
  • validate-all β€” validate if all required parameters are entered.

πŸ¦‹ STDIN PARAMETERS πŸ¦‹

these are the same vibes but with underscore names, because stdin said "i don't do dashes" πŸ’…

  • action β€” fencing action (Default Value: reboot)
  • command_prompt β€” force Python regex for command prompt (Default Value: ['MP>', 'hpiLO->']). Obsoletes: cmd_prompt
  • identity_file β€” identity file (private key) for SSH
  • inet4_only β€” forces agent to use IPv4 addresses only
  • inet6_only β€” forces agent to use IPv6 addresses only
  • ip β€” IP address or hostname of fencing device. Obsoletes: ipaddr
  • ipport β€” TCP/UDP port to use for connection with device (Default Value: 23)
  • method β€” method to fence (onoff|cycle) (Default Value: onoff)
  • password β€” login password or passphrase. Obsoletes: passwd
  • password_script β€” script to run to retrieve password. Obsoletes: passwd_script
  • plug β€” IP address or hostname of fencing device (together with --port-as-ip). Obsoletes: port
  • ssh β€” use SSH connection. Obsoletes: secure
  • ssh_options β€” SSH options to use
  • username β€” login name. This parameter is always required. Obsoletes: login
  • quiet β€” disable logging to stderr. does not affect --verbose or --debug-file or logging to syslog.
  • verbose β€” verbose mode. multiple -v flags can be stacked on the command line (e.g., -vvv) to increase verbosity.
  • verbose_level β€” level of debugging detail in output. defaults to the number of --verbose flags specified on the command line, or to 1 if verbose=1 in a stonith device configuration (i.e., on stdin).
  • debug_file β€” write debug information to given file. Obsoletes: debug
  • version β€” display version information and exit
  • help β€” display help and exit
  • plug_separator β€” separator for plug parameter when specifying more than 1 plug (Default Value: ,)
  • delay β€” wait X seconds before fencing is started (Default Value: 0)
  • disable_timeout β€” disable timeout (true/false) (default: true when run from Pacemaker 2.0+)
  • login_timeout β€” wait X seconds for cmd prompt after login (Default Value: 5)
  • port_as_ip β€” make "port/plug" to be an alias to IP address
  • power_timeout β€” test X seconds for status change after ON/OFF (Default Value: 20)
  • power_wait β€” wait X seconds after issuing ON/OFF (Default Value: 5)
  • shell_timeout β€” wait X seconds for cmd prompt after issuing command (Default Value: 3)
  • stonith_status_sleep β€” sleep X seconds between status calls during a STONITH action (Default Value: 1)
  • retry_on β€” count of attempts to retry power on (Default Value: 1)
  • ssh_path β€” path to ssh binary (Default Value: /usr/bin/ssh)
  • telnet_path β€” path to telnet binary (Default Value: /usr/bin/telnet)

and that's the whole page, bestie. you ate that. πŸ‘‘

this was fence_ilo_ssh (Fence Agent), dated 2009-10-20, and it lives at the very bottom of FENCE_AGENT(8). periodt πŸ’…βœ¨πŸ¦‹

πŸ“¦ where this page comes from