added dockerfile_keywords.txt

lib/dockerfile_keywords.txt

@@ -0,0 +1,40 @@
+#
+#  Author: Hari Sekhon
+#  Date: Mon Nov 2 17:26:28 2015 +0000
+#
+#  vim:ts=2:sts=2:sw=2:et:filetype=conf
+#
+#  https://github.com/HariSekhon/DevOps-Bash-tools
+#
+#  License: see accompanying LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn
+#  and optionally send me feedback to help improve or steer this or other code I publish
+#
+#  https://www.linkedin.com/in/HariSekhon
+#
+
+# ============================================================================ #
+#                     D o c k e r f i l e   K e y w o r d s
+# ============================================================================ #
+
+# Copied from https://github.com/HariSekhon/SQL-keywords
+
+FROM
+MAINTAINER
+RUN
+CMD
+LABEL
+EXPOSE
+ENV
+ARG
+ADD
+COPY
+ENTRYPOINT
+VOLUME
+USER
+WORKDIR
+ONBUILD
+STOPSIGNAL
+HEALTHCHECK
+SHELL