[SDFAB-543] Add instruction and scripts of Docker environment

Change-Id: Ied8362240b2515985179d0d257652f8212a9bcfa
diff --git a/TestON/docker/.gitignore b/TestON/docker/.gitignore
new file mode 100644
index 0000000..ddbd53f
--- /dev/null
+++ b/TestON/docker/.gitignore
@@ -0,0 +1,3 @@
+fs/home/jenkins/*
+fs/usr/local
+fs/tmp