Adding self installation command for fabrica

.packer/script/run

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" > /dev/null && pwd )"
+ORIG_DISK_IMAGE=$1
+
+function usage {
+  cat<<EOF
+  Usage: $0 </chemin/vers/image_disque>
+  Éxecute l'image disque donnée avec Qemu
+EOF
+  exit 1
+}
+
+function find_available_port {
+ read lower_port upper_port < /proc/sys/net/ipv4/ip_local_port_range
+ while :; do
+   for (( port = lower_port ; port <= upper_port ; port++ )); do
+   (echo > /dev/tcp/0.0.0.0/$port) 2>/dev/null >/dev/null
+   if [ $? -ne 0 ]; then
+     echo $port
+     return
+   fi
+   done
+ done
+}
+
+[ -z "$ORIG_DISK_IMAGE" ] && usage
+
+DISK_IMAGE_DIR="$DIR/../.run/$(dirname $ORIG_DISK_IMAGE)"
+ORIG_DISK_IMAGE=$(readlink -f "$ORIG_DISK_IMAGE")
+DISK_IMAGE_NAME=$(date -r "$ORIG_DISK_IMAGE" | shasum - | cut -f1 -d ' ').img
+DISK_IMAGE="$DISK_IMAGE_DIR/$DISK_IMAGE_NAME"
+
+if [ -f "$DISK_IMAGE" ]; then
+  echo "Using existing qcow2 image '$DISK_IMAGE'..."
+else
+  mkdir -p "$(dirname $DISK_IMAGE)"
+  rm -f "$DISK_IMAGE_DIR"/*.img
+  cd "$(dirname $DISK_IMAGE)"
+  echo "Generating qcow2 image '$DISK_IMAGE'..."
+  qemu-img create -f qcow2 -b "$ORIG_DISK_IMAGE" "$(basename $DISK_IMAGE)"
+  cd -
+fi
+
+SSH_PORT=$(find_available_port)
+echo "Starting VM... SSH will be available on '127.0.0.1:${SSH_PORT}'"
+
+qemu-system-x86_64 -boot once=d \
+  -device virtio-net,netdev=user.0 \
+  -m 1024M -machine type=pc,accel=kvm \
+  -display sdl \
+  -hda "${DISK_IMAGE}" \
+  -netdev user,id=user.0,hostfwd=tcp::${SSH_PORT}-:22