tutorial/ovs-sandbox

   1 #! /bin/sh
   2 #
   3 # Copyright (c) 2013 Nicira, Inc.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at:
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 set -e
  18
  19 run () {
  20     echo "$@"
  21     (cd "$sandbox" && "$@") || exit 1
  22 }
  23
  24 builddir=
  25 srcdir=
  26 schema=
  27 installed=false
  28 built=false
  29 for option; do
  30     # This option-parsing mechanism borrowed from a Autoconf-generated
  31     # configure script under the following license:
  32
  33     # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
  34     # 2002, 2003, 2004, 2005, 2006, 2009, 2013 Free Software Foundation, Inc.
  35     # This configure script is free software; the Free Software Foundation
  36     # gives unlimited permission to copy, distribute and modify it.
  37
  38     # If the previous option needs an argument, assign it.
  39     if test -n "$prev"; then
  40         eval $prev=\$option
  41         prev=
  42         continue
  43     fi
  44     case $option in
  45         *=*) optarg=`expr "X$option" : '[^=]*=\(.*\)'` ;;
  46         *) optarg=yes ;;
  47     esac
  48
  49     case $dashdash$option in
  50         --)
  51             dashdash=yes ;;
  52         -h|--help)
  53             cat <<EOF
  54 ovs-sandbox, for starting a sandboxed dummy Open vSwitch environment
  55 usage: $0 [OPTION...]
  56
  57 If you run ovs-sandbox from an OVS build directory, it uses the OVS that
  58 you built.  Otherwise, if you have an installed Open vSwitch, it uses
  59 the installed version.
  60
  61 These options force ovs-sandbox to use a particular OVS build:
  62   -b, --builddir=DIR   specify Open vSwitch build directory
  63   -s, --srcdir=DIR     specify Open vSwitch source directory
  64 These options force ovs-sandbox to use an installed Open vSwitch:
  65   -i, --installed      use installed Open vSwitch
  66   -S, --schema=FILE    use FILE as vswitch.ovsschema
  67
  68 Other options:
  69   -h, --help           Print this usage message.
  70 EOF
  71             exit 0
  72             ;;
  73
  74         --b*=*)
  75             builddir=$optarg
  76             built=:
  77             ;;
  78         -b|--b*)
  79             prev=builddir
  80             built=:
  81             ;;
  82         --sr*=*)
  83             srcdir=$optarg
  84             built=false
  85             ;;
  86         -s|--sr*)
  87             prev=srcdir
  88             built=false
  89             ;;
  90         -i|--installed)
  91             installed=:
  92             ;;
  93         --sc*=*)
  94             schema=$optarg
  95             installed=:
  96             ;;
  97         -S|--sc*)
  98             prev=schema
  99             installed=:
 100             ;;
 101         -*)
 102             echo "unrecognized option $option (use --help for help)" >&2
 103             exit 1
 104             ;;
 105         *)
 106             echo "$option: non-option arguments not supported (use --help for help)" >&2
 107             exit 1
 108             ;;
 109     esac
 110     shift
 111 done
 112
 113 if $installed && $built; then
 114     echo "sorry, conflicting options (use --help for help)" >&2
 115     exit 1
 116 elif $installed || $built; then
 117     :
 118 elif test -e vswitchd/ovs-vswitchd; then
 119     built=:
 120     builddir=.
 121 elif (ovs-vswitchd --version) >/dev/null 2>&1; then
 122     installed=:
 123 else
 124     echo "can't find an OVS build or install (use --help for help)" >&2
 125     exit 1
 126 fi
 127
 128 if $built; then
 129     if test ! -e "$builddir"/vswitchd/ovs-vswitchd; then
 130         echo "$builddir does not appear to be an OVS build directory" >&2
 131         exit 1
 132     fi
 133     builddir=`cd $builddir && pwd`
 134
 135     # Find srcdir.
 136     case $srcdir in
 137         '')
 138             srcdir=$builddir
 139             if test ! -e "$srcdir"/WHY-OVS; then
 140                 srcdir=`cd $builddir/.. && pwd`
 141             fi
 142             ;;
 143         /*) ;;
 144         *) srcdir=`pwd`/$srcdir ;;
 145     esac
 146     schema=$srcdir/vswitchd/vswitch.ovsschema
 147     if test ! -e "$schema"; then
 148         echo >&2 'source directory not found, please use --srcdir'
 149         exit 1
 150     fi
 151
 152     # Put built tools early in $PATH.
 153     if test ! -e $builddir/vswitchd/ovs-vswitchd; then
 154         echo >&2 'build not found, please change set $builddir or change directory'
 155         exit 1
 156     fi
 157     PATH=$builddir/ovsdb:$builddir/vswitchd:$builddir/utilities:$PATH
 158     export PATH
 159 else
 160     case $schema in
 161         '')
 162             for schema in \
 163                 /usr/local/share/openvswitch/vswitch.ovsschema \
 164                 /usr/share/openvswitch/vswitch.ovsschema \
 165                 none; do
 166                 if test -r $schema; then
 167                     break
 168                 fi
 169             done
 170             ;;
 171         /*) ;;
 172         *) schema=`pwd`/$schema ;;
 173     esac
 174     if test ! -r "$schema"; then
 175         echo "can't find vswitch.ovsschema, please specify --schema" >&2
 176         exit 1
 177     fi
 178 fi
 179
 180 # Create sandbox.
 181 rm -rf sandbox
 182 mkdir sandbox
 183 sandbox=`cd sandbox && pwd`
 184
 185 # Set up environment for OVS programs to sandbox themselves.
 186 OVS_RUNDIR=$sandbox; export OVS_RUNDIR
 187 OVS_LOGDIR=$sandbox; export OVS_LOGDIR
 188 OVS_DBDIR=$sandbox; export OVS_DBDIR
 189 OVS_SYSCONFDIR=$sandbox; export OVS_SYSCONFDIR
 190
 191 if $built; then
 192     # Easy access to OVS manpages.
 193     (cd "$builddir" && make install-man mandir="$sandbox"/man)
 194     MANPATH=$sandbox/man:; export MANPATH
 195 fi
 196
 197 # Ensure cleanup.
 198 trap 'kill `cat "$sandbox"/*.pid`' 0 1 2 3 13 14 15
 199
 200 # Create database and start ovsdb-server.
 201 touch "$sandbox"/.conf.db.~lock~
 202 run ovsdb-tool create conf.db "$srcdir"/vswitchd/vswitch.ovsschema
 203 run ovsdb-server --detach --no-chdir --pidfile -vconsole:off --log-file \
 204     --remote=punix:"$sandbox"/db.sock
 205
 206 # Start ovs-vswitchd.
 207 run ovs-vswitchd --detach --no-chdir --pidfile -vconsole:off --log-file \
 208     --enable-dummy=override -vvconn -vnetdev_dummy
 209
 210 cat <<EOF
 211
 212
 213
 214 ----------------------------------------------------------------------
 215 You are running in a dummy Open vSwitch environment.  You can use
 216 ovs-vsctl, ovs-ofctl, ovs-appctl, and other tools to work with the
 217 dummy switch.
 218
 219 Log files, pidfiles, and the configuration database are in the
 220 "sandbox" subdirectory.
 221
 222 Exit the shell to kill the running daemons.
 223 EOF
 224
 225 status=0; $SHELL || status=$?
 226
 227 cat <<EOF
 228 ----------------------------------------------------------------------
 229
 230
 231
 232 EOF
 233
 234 exit $status