Merge pull request #8 from ArpNetworking/docker

add docker build

Author: BrandonArp

.dockerignore

@@ -0,0 +1 @@
+target/tmp

Dockerfile

@@ -0,0 +1,28 @@
+# Copyright 2016 Smartsheet.com
+#
+# Licensed 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 java:8u77-jre-alpine
+MAINTAINER arpnetworking
+EXPOSE 7065
+EXPOSE 7066
+WORKDIR /opt/cluster-aggregator
+ENV CONFIG_FILE /opt/cluster-aggregator/config/config.json
+ENV PARAMS $CONFIG_FILE
+ENV LOGGING_CONFIG -Dlogback.configurationFile=/opt/cluster-aggregator/config/logback.xml
+ENV JAVA_OPTS $LOGGING_CONFIG
+RUN mkdir -p /opt/cluster-aggregator/logs
+RUN mkdir -p /opt/cluster-aggregator/data
+ADD config /opt/cluster-aggregator/config
+ADD target/appassembler /opt/cluster-aggregator
+CMD /opt/cluster-aggregator/bin/cluster-aggregator $PARAMS

README.md

@@ -22,8 +22,12 @@ Usage
 
 ### Installation
 
+#### Manual
 The artifacts from the build are in *metrics-cluster-aggregator/target/appassembler* and should be copied to an appropriate directory on your application host(s).
 
+#### Docker
+If you use Docker, we publish a base docker image that makes it easy for you to layer configuration on top of.  Create a Docker image based on the image arpnetworking/cluster-aggregator.  Configuration files are typically located at /opt/cluster-aggregator/config/.  In addition, you can specify CONFIG_FILE (defaults to /opt/cluster-aggregator/config/config.json), PARAMS (defaults to $CONFIG_FILE), LOGGING_CONFIG (defaults to "-Dlogback.configurationFile=/opt/cluster-aggregator/config/logback.xml"), and JAVA_OPTS (defaults to $LOGGING_CONFIG) environment variables to control startup.
+
 ### Execution
 
 In the installation's *bin* directory there are scripts to start Metrics Cluster Aggregator: *cluster-aggregator* (Linux) and *cluster-aggregator.bat* (Windows).  One of these should be executed on system start with appropriate parameters; for example: