Commit ae082df0 authored by Stephen Shirley's avatar Stephen Shirley
Browse files

Adding a wrapper around connecting to kvm console



The wrapper will connect to the console, and check in the background if
the instance is paused, unpausing it as necessary.
Signed-off-by: default avatarStephen Shirley <diamond@google.com>
Reviewed-by: default avatarMichael Hanselmann <hansmi@google.com>
parent 030a9cb8
......@@ -496,6 +496,7 @@ pkglib_SCRIPTS = \
daemons/daemon-util \
tools/kvm-ifup \
tools/xm-console-wrapper \
tools/kvm-console-wrapper \
$(pkglib_python_scripts)
nodist_pkglib_SCRIPTS = \
......
......@@ -144,6 +144,7 @@ QUEUE_DIR = DATA_DIR + "/queue"
DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
KVM_IFUP = _autoconf.PKGLIBDIR + "/kvm-ifup"
KVM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/kvm-console-wrapper"
XM_CONSOLE_WRAPPER = _autoconf.PKGLIBDIR + "/xm-console-wrapper"
ETC_HOSTS = "/etc/hosts"
DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
......
......@@ -1138,7 +1138,9 @@ class KVMHypervisor(hv_base.BaseHypervisor):
"""
if hvparams[constants.HV_SERIAL_CONSOLE]:
cmd = [constants.SOCAT_PATH,
cmd = [constants.KVM_CONSOLE_WRAPPER,
utils.ShellQuote(instance.name), constants.SOCAT_PATH,
utils.ShellQuote(cls._InstanceMonitor(instance.name)),
"STDIO,%s" % cls._SocatUnixConsoleParams(),
"UNIX-CONNECT:%s" % cls._InstanceSerial(instance.name)]
return objects.InstanceConsole(instance=instance.name,
......
#!/bin/bash
# Copyright (C) 2011 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
INSTANCE="$1"
SOCAT="$2"
MONITOR="$3"
PARAMS="$4"
CONSOLE="$5"
unpause() {
echo "info status" |
"$SOCAT" STDIO "UNIX-CONNECT:$MONITOR" 2>/dev/null |
grep -q '^VM status: paused' || return
# As there is no way to be sure when the main socat has actually connected to
# the instance console, sleep for a few seconds before unpausing the
# instance. This is a tradeoff between missing some console output if the
# node is overloaded and making the user wait everytime when the node isn't
# so busy.
sleep 3
# Send \r\n after notice as terminal is in raw mode
printf "Instance $INSTANCE is paused, unpausing\r\n"
echo "c" | "$SOCAT" STDIO "UNIX-CONNECT:$MONITOR" &>/dev/null
}
unpause &
"$SOCAT" "$PARAMS" "$CONSOLE"
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment