dist/build-aci.sh: build an aci

This patch depends on:
- actool patch-manifest:
  https://github.com/appc/spec/pull/258
- docker2aci on local files:
  https://github.com/appc/docker2aci/issues/32
Both have been merged.

dist/build-aci.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+set -e
+
+if [ $# -ne 1 ]; then
+	echo "Usage: $0 tag" >/dev/stderr
+	exit 1
+fi
+
+tag=$1
+
+tgt=$(mktemp -d)
+
+./build-docker.sh $tag
+
+docker save -o ${tgt}/flannel-${tag}.docker quay.io/coreos/flannel:${tag}
+docker2aci ${tgt}/flannel-${tag}.docker
+
+VOL1=run-flannel,path=/run/flannel,readOnly=false
+VOL2=etc-ssl-etcd,path=/etc/ssl/etcd,readOnly=true
+VOL3=dev-net,path=/dev/net,readOnly=false
+actool patch-manifest --replace --capability=CAP_NET_ADMIN --mounts=${VOL1}:${VOL2}:${VOL3} quay.io-coreos-flannel-${tag}.aci
+
+# Cleanup
+rm -rf $tgt