From cbdd7bd82ce2c690531d0bd556f9b738413d16f3 Mon Sep 17 00:00:00 2001
From: Thierry Parmentelat <thierry.parmentelat@inria.fr>
Date: Fri, 21 Mar 2014 18:55:59 +0100
Subject: [PATCH] add option -m for setting memory add option -n for setting
 hostname if different from container-name review options to be in line with
 the ones in lbuild-initvm (-i -> -c for confirm, -I -> -i)

---
 scripts/create-vm.sh | 64 +++++++++++++++++++++++++++-----------------
 1 file changed, 40 insertions(+), 24 deletions(-)

diff --git a/scripts/create-vm.sh b/scripts/create-vm.sh
index b879490..43adf55 100755
--- a/scripts/create-vm.sh
+++ b/scripts/create-vm.sh
@@ -17,50 +17,66 @@ LOGS=$HOME/machines
 DOMAIN=pl.sophia.inria.fr
 
 DEFAULT_DISTRO=f20
-# do not care about 32 bits anymore
-#DEFAULT_PERSO=linux64
 
-INTERACTIVE=
-DISTRO=$DEFAULT_DISTRO
+CONFIRM=
 function usage () {
   message="$@" 
-  echo "usage : $COMMAND [-i] [-f distro] [-I Image] hostname"
-  echo "  default distro is $DEFAULT_DISTRO"
+  echo "usage : $COMMAND [-c] [-f distro] [-i image] [ -m memory ] [ -n hostname ] container"
+  echo " -c : confirm, will show the command and prompt for confirmation "
+  echo " -f : set distro, default is $DEFAULT_DISTRO"
+  echo " -i : if specified, image is rsynced into /vservers"
+  echo "      warning: we cannot use an image already in /vservers..."
+  echo " -m : memory size in Mb - default is 512"
+  echo " -n : specify hostname if different from container"
+  echo " container : used for /vservers/foo as well as the lxc/libvirt name"
+  echo "examples"
+  echo "  create-vm.sh sandbox"
+  echo "    Builds a brand new $DEFAULT_DISTRO 64bits VM named sandbox with hostname sandbox.pl.sophia.inria.fr"
+  echo "  create-vm.sh -i /vservers/migrating/testmaster -n testmaster testmaster.f14"
+  echo "    Create a container named testmaster.f14 from the specified image with hostname testmaster.pl.sophia.inria.fr"
   [ -n "$message" ] && echo $message
   exit 1
 }
 
-while getopts "f:I:ih" flag; do
+while getopts "cf:i:m:n:h" flag; do
     case $flag in
-	f) DISTRO=$OPTARG;;
-	i) INTERACTIVE=true ;;
-        I) IMAGE=$OPTARG;;
+	c) CONFIRM=true ;;
+	f) DISTRO=$OPTARG ;;
+        i) IMAGE=$OPTARG ;;
+	m) MEMORY=$OPTARG ;;
+	n) HOSTNAME=$OPTARG ;;
 	?|h) usage "" ;;
     esac
 done
+# parse args
 shift $((OPTIND-1))
 [[ -z "$@" ]] && usage "no hostname provided"
 container="$1" ; shift
-[[ -n "$@" ]] && usage "extra arguments"  "$@" "(hostname=$container)"
-
+[[ -n "$@" ]] && usage "extra arguments" "$@" "(container=$container)"
 
+# sanity checks
 [ -d "$BUILD" ] || usage "Could not find directory $BUILD"
-
 [ -d /vservers/$container ] && usage "container $container already exists in /vservers"
 
-fqdn=$container.$DOMAIN
-
-if [ -n "$IMAGE" ]; then
-  command="$BUILD/lbuild-initvm.sh -f $DISTRO -n $fqdn -i $IMAGE $container"
-else
-  command="$BUILD/lbuild-initvm.sh -f $DISTRO -n $fqdn $container"
-fi
-
-if [ -n "$INTERACTIVE" ] ; then
-    echo -n "Run $command OK ? "
+# comopute all vars from args
+[ -z "$DISTRO" ] && DISTRO="$DEFAULT_DISTRO"
+[ -z "$HOSTNAME" ] && HOSTNAME="$container"
+fqdn=$HOSTNAME.$DOMAIN
+
+# prepare initvm command
+initvm="$BUILD/lbuild-initvm.sh"
+initvm="$initvm -f $DISTRO"
+initvm="$initvm -n $fqdn"
+[ -n "$IMAGE" ] && initvm="$initvm -i $IMAGE"
+[ -n "$MEMORY" ] $$ initvm="$initvm -m $MEMORY" 
+initvm="$initvm $container"
+
+if [ -n "$CONFIRM" ] ; then
+    echo -n "Run $initvm OK ? "
     read answer ; case $answer in [nN]*) exit 1 ;; esac
 fi
 
+echo "Running $initvm"
 echo "Storing output in $LOGS/$container.log"
-$command >& $LOGS/$container.log
+$initvm >& $LOGS/$container.log
 
-- 
2.43.0