Date: Sat, 2 Nov 2013 04:48:57 +0100 From: Michael Gmelin <freebsd@grem.de> To: freebsd-virtualization@freebsd.org <freebsd-virtualization@freebsd.org> Subject: rc.d script for running bhyve in tmux Message-ID: <20131102044857.3d5a2c85@bsd64.grem.de>
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[-- Attachment #1 --]
Hi,
I hacked together a small rc.d script for starting bhyve(4) in tmux,
maybe it's useful to others too. Place it in /usr/local/etc/rc.d and
install sysutils/tmux. Might need some love to fit your needs.
Minimal configuration example:
pkg install tmux
echo "net.link.tap.up_on_open=1" >> /etc/sysctl.conf
cat >> /boot/loader.conf << EOF
if_tap_load="YES"
if_bridge_load="YES"
vmm_load="YES"
EOF
kldload tap; kldload bridge; kldload vmm
cat >> /etc/rc.conf << EOF
cloned_interfaces="tap0 bridge0"
bhyve_enable="YES"
bhyve_diskdev="/dev/zvol/tank/bhyve/virt"
EOF
ifconfig tap0 create
ifconfig bridge0 create
service bhyve start
tmux list-sessions
tmux attach -t bhyve
service bhyve status
service bhyve stop
Multi profile configuration example:
cat >> /etc/rc.conf << EOF
cloned_interfaces="tap0 tap1 bridge0"
bhyve_enable="YES"
bhyve_profiles="virt1 virt2"
bhyve_virt1_diskdev="/dev/zvol/tank/bhyve/virt1"
bhyve_virt2_tapdev="tap1"
bhyve_virt2_diskdev="/dev/zvol/tank/bhyve/virt2"
bhyve_virt2_memsize="8192"
bhyve_virt2_ncpu="4"
EOF
ifconfig tap0 create
ifconfig tap1 create
ifconfig bridge0 create
service bhyve start # start all
service bhyve start virt2 # start individual
tmux attach -t bhyve_virt1
tmux attach -t bhyve_virt1
service bhyve stop virt2 # stop individual
service bhyve stop # stop all
(by default ctrl-b d detaches from tmux).
Cheers,
Michael
--
Michael Gmelin
[-- Attachment #2 --]
#!/bin/sh
#
# $FreeBSD: mgmelin
#
# PROVIDE: bhyve
# REQUIRE: LOGIN
# KEYWORD: nojail
#
#
# Add the following lines to /etc/rc.conf to enable bhyve:
# bhyve_enable (bool): Set to "NO" by default.
# Set it to "YES" to enable bhyve
# bhyve_profiles (str): Set to "" by default.
# Define your profiles here.
# bhyve_tapdev (str): Set to "tap0" by default.
# Set to the tap(4) device to use.
# bhyve_diskdev (str): Must be set, no default.
# Set to the disk device to use.
# bhyve_ncpu (int): Set to 1 by default.
# Set to the number of CPUs for the VM.
# bhyve_memsize (int): Set to 512 by default.
# Set to the number of MB of memory for the VM.
. /etc/rc.subr
name="bhyve"
rcvar=bhyve_enable
start_precmd="bhyve_prestart"
status_cmd="bhyve_status"
poll_cmd="bhyve_poll"
stop_cmd="bhyve_stop"
_session=$name
command="/usr/local/bin/tmux"
procname="-sh"
[ -z "$bhyve_enable" ] && bhyve_enable="NO"
[ -z "$bhyve_tapdev" ] && bhyve_tapdev="tap0"
[ -z "$bhyve_diskdev" ] && bhyve_diskdev="none"
[ -z "$bhyve_ncpu" ] && bhyve_ncpu="1"
[ -z "$bhyve_memsize" ] && bhyve_memsize="512"
load_rc_config $name
if [ -n "$2" ]; then
profile="$2"
_session="${_session}_${profile}"
if [ "x${bhyve_profiles}" != "x" ]; then
eval bhyve_enable="\${${_session}_enable:-${bhyve_enable}}"
eval bhyve_tapdev="\${${_session}_tapdev:-${bhyve_tapdev}}"
eval bhyve_diskdev="\${${_session}_diskdev:-${bhyve_diskdev}}"
eval bhyve_ncpu="\${${_session}_ncpu:-${bhyve_ncpu}}"
eval bhyve_memsize="\${${_session}_memsize:-${bhyve_memsize}}"
else
echo "$0: extra argument ignored"
fi
else
if [ "x${bhyve_profiles}" != "x" -a "x$1" != "x" ]; then
for profile in ${bhyve_profiles}; do
eval _enable="\${bhyve_${profile}_enable}"
case "x${_enable:-${bhyve_enable}}" in
x|x[Nn][Oo]|x[Nn][Oo][Nn][Ee])
continue
;;
x[Yy][Ee][Ss])
;;
*)
if test -z "$_enable"; then
_var=bhyve_enable
else
_var=bhyve_"${profile}"_enable
fi
echo "Bad value" \
"'${_enable:-${bhyve_enable}}'" \
"for ${_var}. " \
"Profile ${profile} skipped."
continue
;;
esac
echo "===> bhyve profile: ${profile}"
/usr/local/etc/rc.d/bhyve $1 ${profile}
retcode="$?"
if [ "0${retcode}" -ne 0 ]; then
failed="${profile} (${retcode}) ${failed:-}"
else
success="${profile} ${success:-}"
fi
done
exit 0
fi
profile=$name
fi
pidfile="/var/run/${_session}.pid"
bhyve_prestart()
{
case ${bhyve_diskdev} in
[Nn][Oo][Nn][Ee] | '')
echo "No ${_session}_diskdev set. Quitting." 1>&2
return 1;
;;
esac
if [ ! -c "${bhyve_diskdev}" -a ! -f "${bhyve_diskdev}" ]; then
echo "${bhyve_diskdev} doesn't exist or is not suitable as a diskdev" 1>&2
return 1;
fi
}
bhyve_status()
{
if ${command} has-session -t ${_session} 2>/dev/null; then
echo "${_session} is running."
else
echo "${_session} is not running."
return 1
fi
}
bhyve_poll()
{
echo -n "Waiting for session: ${_session}"
while ${command} has-session -t ${_session} 2>dev/null; do
sleep 1
done
echo
}
bhyve_stop()
{
if ${command} has-session -t ${_session} 2>/dev/null; then
echo "Stopping ${_session}."
${command} kill-session -t ${_session}
while ${command} has-session -t ${_session} 2>dev/null; do
sleep 1
done
fi
rm -f ${pidfile}
}
command_args="new-session -ds ${_session} \"sh -c 'echo \\\$PPID >${pidfile}; while true; do /usr/sbin/bhyvectl --vm=${_session} --destroy; /usr/sbin/bhyveload -m ${bhyve_memsize} -d ${bhyve_diskdev} ${_session} && /usr/sbin/bhyve -c ${bhyve_ncpu} -m ${bhyve_memsize} -AI -H -P -g 0 -s 0:0,hostbridge -s 1:0,virtio-net,${bhyve_tapdev} -s 2:0,virtio-blk,${bhyve_diskdev} -S 31,uart,stdio ${_session} || break; done'\""
run_rc_command "$1"
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