Update README.md

Author: ketan

README.md

@@ -5,7 +5,6 @@ Table of Contents
 
   * [Installation](#installation)
   * [Building the code base](#building-the-code-base)
-  * [Is this production ready?](#is-this-production-ready)
   * [Using your own docker image with elastic agents](#using-your-own-docker-image-with-elastic-agents)
      * [Using the GoCD agent, installed via .deb/.rpm](#using-the-gocd-agent-installed-via-debrpm)
      * [Use a custom bootstrapper](#use-a-custom-bootstrapper)
@@ -21,18 +20,6 @@ Documentation for installation is available [here](INSTALL.md).
 
 To build the jar, run `./gradlew clean test assemble`
 
-## Is this production ready?
-
-It depends.
-
-**tl;dr;**
-
-If you need something simple to get started with, use this plugin. If you're looking to run a lot of builds, you probably want to look at the [docker swarm elastic agent plugin](https://github.com/gocd-contrib/docker-swarm-elastic-agents).
-
-**The long answer:**
-
-The plugin, as it is currently implemented is meant to be a very simple plugin to demonstrate how to get started with GoCD [elastic agent](https://plugin-api.go.cd/current/elastic-agents) feature. It does not support some of the other interesting things you can do with docker (resource limits, host file mapping etc.)
-
 ## Using your own docker image with elastic agents
 
 The plugin executes the equivalent of the following docker command to start the agent —
@@ -75,26 +62,57 @@ See the bootstrap script and docker file here under [`contrib/scripts/bootstrap-
 
 ## Troubleshooting
 
-Enabling debug level logging can help you troubleshoot an issue with the elastic agent plugin. To enable debug level logs, edit the `/etc/default/go-server` (for Linux) to add:
+### Enable Debug Logs
 
-```bash
-export GO_SERVER_SYSTEM_PROPERTIES="$GO_SERVER_SYSTEM_PROPERTIES -Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug"
-```
+#### If you are on GoCD version 19.6 and above:
 
-If you're running the server via `./server.sh` script —
+Edit the file `wrapper-properties.conf` on your GoCD server and add the following options. The location of the `wrapper-properties.conf` can be found in the [installation documentation](https://docs.gocd.org/current/installation/installing_go_server.html) of the GoCD server.
 
+```properties
+# We recommend that you begin with the index `100` and increment the index for each system property
+wrapper.java.additional.100=-Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug
 ```
-$ GO_SERVER_SYSTEM_PROPERTIES="-Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug" ./server.sh
+
+If you're running with GoCD server 19.6 and above on docker using one of the supported GoCD server images, set the environment variable `GOCD_SERVER_JVM_OPTIONS`:
+
+```shell
+docker run -e "GOCD_SERVER_JVM_OPTIONS=-Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug" ...
 ```
 
+#### If you are on GoCD version 19.5 and lower:
+
+* On Linux:
+
+    Enabling debug level logging can help you troubleshoot an issue with this plugin. To enable debug level logs, edit the file `/etc/default/go-server` (for Linux) to add:
+
+    ```shell
+    export GO_SERVER_SYSTEM_PROPERTIES="$GO_SERVER_SYSTEM_PROPERTIES -Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug"
+    ```
+
+    If you're running the server via `./server.sh` script:
+
+    ```shell
+    $ GO_SERVER_SYSTEM_PROPERTIES="-Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug" ./server.sh
+    ```
+
+* On windows:
+
+    Edit the file `config/wrapper-properties.conf` inside the GoCD Server installation directory (typically `C:\Program Files\Go Server`):
+
+    ```
+    # config/wrapper-properties.conf
+    # since the last "wrapper.java.additional" index is 15, we use the next available index.
+    wrapper.java.additional.16=-Dplugin.cd.go.contrib.elastic-agent.docker.log.level=debug
+    ```
+
 ## Credits
 
 Thanks to @konpa for the [docker icon](https://raw.githubusercontent.com/konpa/devicon/b80c6d9acb7b58b80904769015f9e0dd36fe46d2/icons/docker/docker-plain.svg) used by the plugin.
 
 ## License
 
 ```plain
-Copyright 2018, ThoughtWorks, Inc.
+Copyright 2019, ThoughtWorks, Inc.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.