Add simple Boulder integration test

tests/boulder-integration.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+# Simple integration test, run as "./boulder-integration.sh auth" or
+# adjust parameters: "./boulder-integration.sh --domain bang auth".
+
+root="$(mktemp -d)"
+
+# first three flags required, rest is handy defaults
+letsencrypt \
+  --server http://localhost:4000/acme/new-reg \
+  --no-verify-ssl \
+  --dvsni-port 5001 \
+  --config-dir "$root/conf" \
+  --work-dir "$root/work" \
+  --text \
+  --agree-tos \
+  --email "" \
+  --domains le.wtf \
+  -vvvvvvv \
+  "$@"
+
+# print at the end, so it's more visible
+echo "\nRoot integration tests directory: $root"