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Openchain Server Docker deployment

Openchain Server is cross platform and can be deployed as a DNX application on Windows, OS X and Linux. However, to simplify dependency management and homogenize deployment of Openchain, we are shipping it as a Docker image.

This document explains the few steps necessary to have the Openchain server running. Refer to the next section to deploy Openchain directly.

Install Docker

Note

This assumes you are running Linux. Use these instructions if you are running Windows, and these instructions if you are running OS X.

First, install Docker if you don't have it:

wget -qO- https://get.docker.com/ | sh

Then install Docker Compose:

apt-get install python-pip
pip install -U docker-compose

Install Openchain Server

Clone the openchain/docker repository from GitHub, and copy the configuration files from the templates provided.

git clone https://github.com/openchain/docker.git openchain
cd openchain
cp templates/docker-compose-direct.yml docker-compose.yml
mkdir data
cp templates/config.json data/config.json

Now, edit the configuration file (data/config.json):

nano data/config.json

Set the instance_seed setting to a random (non-empty) string.

Note

By default, the Openchain server will run on port 8080. You can edit docker-compose.yml if you want to run on a non-default port.

You can now start the server:

docker-compose up -d

This will start the Openchain server in the background. To check that the server is running properly, check the docker logs:

docker logs openchain-server

You should not see any error:

info: General[0]
    [2016-07-10 18:20:10Z] Starting Openchain v0.7.0
info: General[0]
    [2016-07-10 18:20:11Z]
info: General[0]
    [2016-07-10 18:20:13Z] Stream subscriber disabled
info: General[0]
    [2016-07-10 18:20:13Z] Anchoring disabled
Hosting environment: Production
Content root path: /openchain
Now listening on: http://0.0.0.0:8080
Application started. Press Ctrl+C to shut down.

Tip

You can also run the Openchain Docker container in the foreground by running docker-compose up and omitting the -d switch.

Now that you have a server running, you can connect to the server with a :ref:`client <openchain-client>`.

Configuring admin keys

Use the :ref:`client <openchain-client>` to generate a seed, and derive it into an address. Once you have an address, you can use it as an admin address on your server instance. To do so, update data/config.json and add it to the admin_addresses list:

Tip

Follow :ref:`these steps <create-info-record>` to configure the info record on your new instance. The info record is used by clients connecting to the instance to receive additional information about the instance they are connecting to.

Controlling the server

To restart the server, use:

docker-compose restart

To stop it, use:

docker-compose stop