add monitor socket

scripts/build

@@ -6,7 +6,8 @@ apt-get update
 apt-get install -y \
   curl \
   openssh-client \
-  qemu-kvm
+  qemu-kvm \
+  socat
 
 curl -L https://github.com/coreos/container-linux-config-transpiler/releases/download/v0.3.0/ct-v0.3.0-x86_64-unknown-linux-gnu -o ct
 chmod +x ct

scripts/start

@@ -7,6 +7,7 @@ VM_MEMORY="${VM_MEMORY:-4G}"
 HOSTFWD="${HOSTFWD:-hostfwd=tcp::2222-:22}"
 DISK_IMG="${DISK_IMG:-./coreos_production_qemu_image.img}"
 CD_ARG=""
+MONITOR_OUTPUT="${MONITOR_OUTPUT:-unix:/tmp/kvm-mon}"
 
 if [ -n "${CLOUD_CONFIG_FILE}" ]; then
   echo "Setting cloud config file: ${CLOUD_CONFIG_FILE}"
@@ -51,4 +52,5 @@ qemu-system-x86_64 \
   -machine accel=kvm \
   -vga std \
   -smp 2 \
+  -monitor "${MONITOR_OUTPUT}" \
   $@