create-vm.sh

diff --git a/create-vm.sh b/create-vm.sh
new file mode 100755 (executable)
index 0000000..a3d0ae2
--- /dev/null
+++ b/create-vm.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+COMMAND=$(basename $0)
+DIRNAME=$(dirname $0)
+
+BUILD="${HOME}/git-build"
+
+LOGS=$HOME/machines
+
+[ -d $LOGS ] || { echo "Creating logs dir $LOGS" ; mkdir -p $LOGS; } 
+
+DOMAIN=pl.sophia.inria.fr
+
+DEFAULT_DISTRO=f29
+DEFAULT_MEMORY=4096
+
+CONFIRM=
+function usage () {
+  message="$@" 
+  echo "usage : $COMMAND [-c] [-f distro] [-i image] [ -m memory ] [ -n hostname ] [-s] 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 $DEFAULT_MEMORY"
+  echo " -n : specify hostname if different from container"
+  echo " -s : do not start VM"
+  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
+}
+
+# using HOSTNAME won't work as this is already set in environment
+while getopts "cf:i:m:n:sh" flag; do
+    case $flag in
+       c) CONFIRM=true ;;
+       f) DISTRO=$OPTARG ;;
+        i) IMAGE=$OPTARG ;;
+       m) MEMORY=$OPTARG ;;
+       n) VM_HOSTNAME=$OPTARG ;;
+       s) DO_NOT_START_VM=true ;;
+       ?|h) usage "" ;;
+    esac
+done
+# parse args
+shift $((OPTIND-1))
+[[ -z "$@" ]] && usage "no hostname provided"
+container="$1" ; shift
+[[ -n "$@" ]] && 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"
+
+echo "Updating $BUILD"
+cd $BUILD
+git pull
+cd -
+
+# compute all vars from args
+[ -z "$DISTRO" ] && DISTRO="$DEFAULT_DISTRO"
+[ -z "$MEMORY" ] && MEMORY="$DEFAULT_MEMORY"
+[ -z "$VM_HOSTNAME" ] && VM_HOSTNAME="$container"
+fqdn=$VM_HOSTNAME.$DOMAIN
+
+# prepare initvm command
+initvm="$BUILD/lbuild-initvm.sh"
+[ -z "$IMAGE" ] && initvm="$initvm -f $DISTRO" || initvm="$initvm -i $IMAGE"
+initvm="$initvm -n $fqdn"
+[ -n "$DO_NOT_START_VM" ] && initvm="$initvm -s"
+[ -n "$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"
+$initvm >& $LOGS/$container.log
+