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Docker-compose: network name and port fixup #105

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Docker-compose: network name and port fixup #105

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11 changes: 6 additions & 5 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ Version 2.0.0 introduces uses wait_for_it script for the cluster startup
# Hadoop Docker

## Supported Hadoop Versions
See repository branches for supported hadoop versions
See repository branches for supported Hadoop versions

## Quick Start

Expand All @@ -26,16 +26,17 @@ Or deploy in swarm:
docker stack deploy -c docker-compose-v3.yml hadoop
```

`docker-compose` creates a docker network that can be found by running `docker network list`, e.g. `dockerhadoop_default`.
`docker-compose` creates a docker network that can be found by running `docker network list`, e.g. `docker-hadoop_default`.

Run `docker network inspect` on the network (e.g. `dockerhadoop_default`) to find the IP the hadoop interfaces are published on. Access these interfaces with the following URLs:
Run `docker network inspect` on the network (e.g. `docker-hadoop_default`) to find the IP the Hadoop interfaces are published on. Access these interfaces with the following URLs:

* Namenode: http://<dockerhadoop_IP_address>:9870/dfshealth.html#tab-overview
* History server: http://<dockerhadoop_IP_address>:8188/applicationhistory
* Datanode: http://<dockerhadoop_IP_address>:9864/
* Nodemanager: http://<dockerhadoop_IP_address>:8042/node
* Resource manager: http://<dockerhadoop_IP_address>:8088/

All other Hadoop communication ports are not exposed and only accessible from inside the Docker network using service name and port, eg. `http://namenode:9000/`.


## Configure Environment Variables

The configuration parameters can be specified in the hadoop.env file or as environmental variables for specific services (e.g. namenode, datanode etc.):
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5 changes: 4 additions & 1 deletion docker-compose.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ services:
restart: always
ports:
- 9870:9870
- 9000:9000
volumes:
- hadoop_namenode:/hadoop/dfs/name
environment:
Expand All @@ -30,6 +29,8 @@ services:
image: bde2020/hadoop-resourcemanager:2.0.0-hadoop3.2.1-java8
container_name: resourcemanager
restart: always
ports:
- 8088:8088
environment:
SERVICE_PRECONDITION: "namenode:9000 namenode:9870 datanode:9864"
env_file:
Expand All @@ -48,6 +49,8 @@ services:
image: bde2020/hadoop-historyserver:2.0.0-hadoop3.2.1-java8
container_name: historyserver
restart: always
ports:
- 8188:8188
environment:
SERVICE_PRECONDITION: "namenode:9000 namenode:9870 datanode:9864 resourcemanager:8088"
volumes:
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