MNEMONIC-108: Compose a dockerfile for website dev.
diff --git a/_config.yml b/_config.yml
index eee9a8f..e09815c 100644
--- a/_config.yml
+++ b/_config.yml
@@ -5,7 +5,7 @@
 
 repository: https://github.com/apache/incubator-mnemonic
 destination: target
-exclude: [BUILD.md, Gemfile*]
+exclude: [docker, BUILD.md, README.md, Gemfile*]
 keep_files: [.git]
 highlight_color: "#199acf"
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
new file mode 100644
index 0000000..755ebd2
--- /dev/null
+++ b/docker/Dockerfile
@@ -0,0 +1,48 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+FROM centos
+MAINTAINER Gang Wang (garyw@apache.org)
+
+#set up your proxy below, refer to readme in the Docker folder
+# ENV proxy_host "172.17.42.1"
+# ENV proxy_port "8668"
+ENV proxy_host "172.17.42.1"
+ENV proxy_port "8668"
+ENV http_proxy "http://${proxy_host}:${proxy_port}"
+ENV https_proxy ${http_proxy}
+ENV HTTP_PROXY ${http_proxy}
+ENV HTTPS_PROXY ${http_proxy}
+ENV proxy ${http_proxy}
+
+ENV LC_ALL en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US.UTF-8
+
+RUN yum -y update && yum -y groupinstall 'Development Tools' && \
+    yum -y install ruby ruby-devel rubygems zlib-devel && yum clean all
+
+RUN gem install jekyll bundler nokogiri
+
+RUN mkdir -p /ws && cd /ws && git clone https://git-wip-us.apache.org/repos/asf/incubator-mnemonic-site.git && \
+    cd incubator-mnemonic-site && bundle install
+
+ENV MNEMONIC_SITE_HOME /ws/incubator-mnemonic-site
+
+WORKDIR /ws
+CMD ["bash"]
+