From 2cda10caeb4bc300f15d5944b587853fcaa835fe Mon Sep 17 00:00:00 2001
From: Leonardo Di Donato <leodidonato@gmail.com>
Date: Mon, 15 Jul 2019 20:54:41 +0200
Subject: [PATCH] new: default (usage) command for falco builder image

Signed-off-by: Leonardo Di Donato <leodidonato@gmail.com>
---
 docker/builder/root/usr/bin/usage | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 docker/builder/root/usr/bin/usage

diff --git a/docker/builder/root/usr/bin/usage b/docker/builder/root/usr/bin/usage
new file mode 100755
index 00000000..b6e09a59
--- /dev/null
+++ b/docker/builder/root/usr/bin/usage
@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+gccversion=$(gcc --version | head -n1)
+cppversion=$(g++ -dM -E -x c++ /dev/null | grep -F __cplusplus | cut -d' ' -f3)
+cmakeversion=$(cmake --version | head -n1)
+dockerversion=$(docker --version)
+
+cat <<EOF
+Hello, this is the Falco builder.
+
+How to use.
+    * ...
+    * ...
+
+Environment.
+    * ${gccversion}
+    * cplusplus ${cppversion}
+    * ${cmakeversion}
+    * ${dockerversion}
+EOF
\ No newline at end of file