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fence_vbox.py
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fence_vbox.py
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#!@PYTHON@ -tt
# The Following Agent Has Been Tested On:
#
# VirtualBox 5.0.4 x64 on openSUSE 13.2
#
import sys
import re
import time
import atexit
sys.path.append("@FENCEAGENTSLIBDIR@")
from fencing import *
from fencing import fail_usage
def _invoke(conn, options, *cmd):
prefix = options["--sudo-path"] + " " if "--use-sudo" in options else ""
conn.send_eol(prefix + options["--vboxmanage-path"] + " " + " ".join(cmd))
conn.log_expect(options["--command-prompt"], int(options["--shell-timeout"]))
def get_outlets_status(conn, options):
_domain_re = re.compile(r'^\"(.*)\" \{(.*)\}$')
result = {}
_invoke(conn, options, "list", "vms")
for line in conn.before.splitlines():
# format: "<domain>" {<uuid>}
domain = _domain_re.search(line.strip())
if domain is not None:
result[domain.group(1)] = (domain.group(2), "off")
_invoke(conn, options, "list", "runningvms")
for line in conn.before.splitlines():
# format: "<domain>" {<uuid>}
domain = _domain_re.search(line.strip())
if domain is not None:
result[domain.group(1)] = (domain.group(2), "on")
return result
def get_power_status(conn, options):
outlets = get_outlets_status(conn, options)
if options["--plug"] in outlets:
return outlets[options["--plug"]][1]
right_uuid_line = [outlets[o] for o in outlets.keys() if outlets[o][0] == options["--plug"]]
if len(right_uuid_line):
return right_uuid_line[0][1]
if "--missing-as-off" in options:
return "off"
fail_usage("Failed: You have to enter existing name/UUID of virtual machine!")
def set_power_status(conn, options):
if options["--action"] == "on":
_invoke(conn, options, "startvm", '"%s"' % options["--plug"], "--type", "headless")
else:
_invoke(conn, options, "controlvm", '"%s"' % options["--plug"], "poweroff")
def define_new_opts():
all_opt["vboxmanage_path"] = {
"getopt" : ":",
"longopt" : "vboxmanage-path",
"help" : "--vboxmanage-path=[path] Path to VBoxManage on the host",
"required" : "0",
"shortdesc" : "Path to VBoxManage on the host",
"default" : "VBoxManage",
"order" : 200
}
all_opt["host_os"] = {
"getopt" : ":",
"longopt" : "host-os",
"help" : "--host-os=[os] Operating system of the host",
"required" : "0",
"shortdesc" : "Operating system of the host",
"choices" : ["linux", "macos", "windows"],
"default" : "linux",
"order" : 200
}
def main():
device_opt = ["ipaddr", "login", "passwd", "cmd_prompt", "secure", "port", "sudo",
"missing_as_off", "vboxmanage_path", "host_os"]
define_new_opts()
atexit.register(atexit_handler)
all_opt["secure"]["default"] = "1"
all_opt["cmd_prompt"]["default"] = [r"\[EXPECT\]#\ "]
all_opt["ssh_options"]["default"] = "-t '/bin/bash -c \"" + r"PS1=\\[EXPECT\\]#\ " + "/bin/bash --noprofile --norc\"'"
opt = process_input(device_opt)
opt["logout_string"] = "quit"
if "--host-os" in opt and "--vboxmanage-path" not in opt:
if opt["--host-os"] == "linux":
opt["--vboxmanage-path"] = "VBoxManage"
elif opt["--host-os"] == "macos":
opt["--vboxmanage-path"] = "/Applications/VirtualBox.app/Contents/MacOS/VBoxManage"
opt["logout_string"] = "exit"
elif opt["--host-os"] == "windows":
opt["--vboxmanage-path"] = "\"/Program Files/Oracle/VirtualBox/VBoxManage.exe"
opt["--command-prompt"] = ""
opt["--ssh-options"] = ""
options = check_input(device_opt, opt)
options["eol"] = "\n"
docs = {}
docs["shortdesc"] = "Fence agent for VirtualBox"
docs["longdesc"] = "fence_vbox is an I/O Fencing agent \
which can be used with the virtual machines managed by VirtualBox. \
It logs via ssh to a dom0 where it runs VBoxManage to do all of \
the work. \
\n.P\n\
By default, vbox needs to log in as a user that is a member of the \
vboxusers group. Also, you must allow ssh login in your sshd_config."
docs["vendorurl"] = "https://www.virtualbox.org/"
show_docs(options, docs)
# Operate the fencing device
conn = fence_login(options)
result = fence_action(conn, options, set_power_status, get_power_status, get_outlets_status)
fence_logout(conn, opt["logout_string"])
sys.exit(result)
if __name__ == "__main__":
main()

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