Docker Compose Files
===
Some typical docker compose examples.

# Install Docker and Docker Compose
Take ubuntu for example

```sh
$ curl -sSL https://get.docker.com/ | sh
$ sudo pip install docker-compose
```

# Docker-compose Usage
See [https://docs.docker.com/compose/](https://docs.docker.com/compose/).


# Examples

## consul-discovery
Using consul to make a service-discoverable architecture.

## elk_netflow
Elk cluster, with netflow support.
```sh
docker-compose scale es=3
```

## mongo_cluster
Start 3 mongo instance to make a replica set.

## mongo-elasticsearch
Start mongo (as cluster) and elasticsearch, use a mongo-connector to sync the data from mongo to elasticsearch.

## mongo_webui
Start 1 mongo instance and a mongo-express web tool to watch it.

The mongo instance will store data into local /opt/data/mongo_home.

The web UI will listen on local 8081 port.

## nginx_auth
Use nginx as a proxy with authentication for backend application.

## registry_mirror
docker registry mirror, with redis as the backend cache.

## spark_cluster
Spark cluster with master and worker nodes.
```sh
docker-compose scale worker=2
```
Try submitting a test pi application using the spark-submit command.
```sh
/urs/local/spark/bin/spark-submit --master spark://master:7077 --class org.apache.spark.examples.SparkPi /usr/local/spark/lib/spark-examples-1.4.0-hadoop2.6.0.jar 1000
```