Improve docs for using the logstash container

tools/docker-compose/README.md

@@ -0,0 +1,76 @@
+# Docker Compose for Dev container
+
+## How to start the Dev container
+
+In the root directory of your awx clone, run the following to build your docker image:
+
+```
+make docker-compose-build
+```
+
+Copy over your local settings 
+
+```
+cp awx/settings/local_settings.py.docker_compose awx/settings/local_settings.py
+```
+
+Build the UI
+
+```
+make ui-devel
+```
+
+Run the container 
+
+```
+make docker-compose
+```
+
+The app should now be accessible in your browser at `https://localhost:8043/#/home`
+
+
+## How to use the logstash container
+
+#### Modify the docker-compose.yml
+
+Uncomment the following lines in the `docker-compose.yml`
+
+```
+#- logstash
+...
+
+#logstash:
+#  build:
+#    context: ./docker-compose
+#    dockerfile: Dockerfile-logstash
+```
+
+POST the following content to `/api/v2/settings/logging/` (this uses
+authentication set up inside of the logstash configuration file).
+
+```
+{
+    "LOG_AGGREGATOR_HOST": "http://logstash",
+    "LOG_AGGREGATOR_PORT": 8085,
+    "LOG_AGGREGATOR_TYPE": "logstash",
+    "LOG_AGGREGATOR_USERNAME": "awx_logger",
+    "LOG_AGGREGATOR_PASSWORD": "workflows",
+    "LOG_AGGREGATOR_LOGGERS": [
+        "awx",
+        "activity_stream",
+        "job_events",
+        "system_tracking"
+    ],
+    "LOG_AGGREGATOR_INDIVIDUAL_FACTS": false,
+    "LOG_AGGREGATOR_TOWER_UUID": "991ac7e9-6d68-48c8-bbde-7ca1096653c6",
+    "LOG_AGGREGATOR_ENABLED": true
+}
+```
+
+> Note: HTTP must be specified in the `LOG_AGGREGATOR_HOST` if you are using the docker development environment.  
+
+An example of how to view the most recent logs from the container:
+
+```
+docker exec -i -t $(docker ps -aqf "name=tools_logstash_1") tail -n 50 /logstash.log
+```