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README.md

Table of Contents


Supported tags and respective Dockerfile links

Oracle OpenJDK 11 (Debian)
Oracle OpenJDK 11 with full JDK
Zulu OpenJDK 11 (Alpine Linux)
Zulu OpenJDK 11 with full JDK
AdoptOpenJDK 11 with OpenJ9 (Alpine Linux)
AdoptOpenJDK 11 with OpenJ9 and full JDK

Quick Reference

Where to get help:

Where to file issues:


What is NextGen Connect (formerly Mirth Connect)

An open-source message integration engine focused on healthcare. For more information please visit our GitHub page.


How to use this image

Start a Connect instance

Quickly start Connect using embedded Derby database and all configuration defaults. At a minimum you will likely want to use the -p option to expose the 8443 port so that you can login with the Administrator GUI or CLI:

docker run -p 8443:8443 nextgenhealthcare/connect

You can also use the --name option to give your container a unique name, and the -d option to detach the container and run it in the background:

docker run --name myconnect -d -p 8443:8443 nextgenhealthcare/connect

To run a specific version of Connect, specify a tag at the end:

docker run --name myconnect -d -p 8443:8443 nextgenhealthcare/connect:3.8

Look at the Environment Variables section for more available configuration options.


Using docker stack deploy or docker-compose

With docker stack or docker-compose you can easily setup and launch multiple related containers. For example you might want to launch both Connect and a PostgreSQL database to run alongside it.

docker-compose -f stack.yml up

Here's an example stack.yml file you can use:

version: "3.1"
services:
  mc:
    image: nextgenhealthcare/connect
    environment:
      - DATABASE=postgres
      - DATABASE_URL=jdbc:postgresql://db:5432/mirthdb
      - DATABASE_MAX_CONNECTIONS=20
      - DATABASE_USERNAME=mirthdb
      - DATABASE_PASSWORD=mirthdb
      - KEYSTORE_STOREPASS=docker_storepass
      - KEYSTORE_KEYPASS=docker_keypass
      - VMOPTIONS=-Xmx512m
    ports:
      - 8080:8080/tcp
      - 8443:8443/tcp
    depends_on:
      - db
  db:
    image: postgres
    environment:
      - POSTGRES_USER=mirthdb
      - POSTGRES_PASSWORD=mirthdb
      - POSTGRES_DB=mirthdb
    expose:
      - 5432

Try in PWD

Try it out with Play With Docker! Note that in order to access the 8080/8443 ports from your workstation, follow their guide to format the URL correctly. When you login via the Administrator GUI, use port 443 on the end instead of 8443.

There are other example stack files in the examples directory!


Environment Variables

You can use environment variables to configure the mirth.properties file or to add custom JVM options. More information on the available mirth.properties options can be found in the Connect User Guide.

To set environment variables, use the -e option for each variable on the command line:

docker run -e DATABASE='derby' -p 8443:8443 nextgenhealthcare/connect

You can also use a separate file containing all of your environment variables using the --env-file option. For example let's say you create a file myenvfile.txt:

DATABASE=postgres
DATABASE_URL=jdbc:postgresql://serverip:5432/mirthdb
DATABASE_USERNAME=postgres
DATABASE_PASSWORD=postgres
KEYSTORE_STOREPASS=changeme
KEYSTORE_KEYPASS=changeme
VMOPTIONS=-Xmx512m
docker run --env-file=myenvfile.txt -p 8443:8443 nextgenhealthcare/connect

Common mirth.properties options

DATABASE

The database type to use for the NextGen Connect Integration Engine backend database. Options:

  • derby
  • mysql
  • postgres
  • oracle
  • sqlserver

DATABASE_URL

The JDBC URL to use when connecting to the database. For example:

  • jdbc:postgresql://serverip:5432/mirthdb

DATABASE_USERNAME

The username to use when connecting to the database. If you don't want to use an environment variable to store sensitive information like this, look at the Using Docker Secrets section below.

DATABASE_PASSWORD

The password to use when connecting to the database. If you don't want to use an environment variable to store sensitive information like this, look at the Using Docker Secrets section below.

DATABASE_MAX_CONNECTIONS

The maximum number of connections to use for the internal messaging engine connection pool.

KEYSTORE_STOREPASS

The password for the keystore file itself. If you don't want to use an environment variable to store sensitive information like this, look at the Using Docker Secrets section below.

KEYSTORE_KEYPASS

The password for the keys within the keystore, including the server certificate and the secret encryption key. If you don't want to use an environment variable to store sensitive information like this, look at the Using Docker Secrets section below.

SESSION_STORE

If set to true, the web server sessions are stored in the database. This can be useful in situations where you have multiple Connect servers (connecting to the same database) clustered behind a load balancer.

VMOPTIONS

A comma-separated list of JVM command-line options to place in the .vmoptions file. For example to set the max heap size:

  • -Xmx512m

DELAY

This tells the entrypoint script to wait for a certain amount of time (in seconds). The entrypoint script will automatically use a command-line SQL client to check connectivity and wait until the database is up before starting Connect, but only when using PostgreSQL or MySQL. If you are using Oracle or SQL Server and the database is being started up at the same time as Connect, you may want to use this option to tell Connect to wait a bit to allow the database time to startup.


Other mirth.properties options

Other options in the mirth.properties file can also be changed. Any environment variable starting with the _MP_ prefix will set the corresponding value in mirth.properties. Replace . with a single underscore _ and - with two underscores __.

Examples:

  • Set the server TLS protocols to only allow TLSv1.2 and 1.3:

    • In the mirth.properties file:
      • https.server.protocols = TLSv1.3,TLSv1.2
    • As a Docker environment variable:
      • _MP_HTTPS_SERVER_PROTOCOLS='TLSv1.3,TLSv1.2'
  • Set the max connections for the read-only database connection pool:

    • In the mirth.properties file:
      • database-readonly.max-connections = 20
    • As a Docker environment variable:
      • _MP_DATABASE__READONLY_MAX__CONNECTIONS='20'

Using Docker Secrets

For sensitive information such as the database/keystore credentials, instead of supplying them as environment variables you can use a Docker Secret. There are two secret names this image supports:

mirth_properties

If present, any properties in this secret will be merged into the mirth.properties file.

mcserver_vmoptions

If present, any JVM options in this secret will be appended onto the mcserver.vmoptions file.


Secrets are supported with Docker Swarm, but you can also use them with docker-compose.

For example let's say you wanted to set keystore.storepass and keystore.keypass in a secure way. You could create a new file, secret.properties:

keystore.storepass=changeme
keystore.keypass=changeme

Then in your YAML docker-compose stack file:

version: '3.1'
services:
  mc:
    image: nextgenhealthcare/connect
    environment:
      - VMOPTIONS=-Xmx512m
    secrets:
      - mirth_properties
    ports:
      - 8080:8080/tcp
      - 8443:8443/tcp
secrets:
  mirth_properties:
    file: /local/path/to/secret.properties

The secrets section at the bottom specifies the local file location for each secret. Change /local/path/to/secret.properties to the correct local path and filename.

Inside the configuration for the Connect container there is also a secrets section that lists the secrets you want to include for that container.


Using Volumes

The appdata folder

The application data directory (appdata) stores configuration files and temporary data created by Connect after starting up. This usually includes the keystore file and the server.id file that stores your server ID. If you are launching Connect as part of a stack/swarm, it's possible the container filesystem is already being preserved. But if not, you may want to consider mounting a volume to preserve the appdata folder.

docker run -v /local/path/to/appdata:/opt/connect/appdata -p 8443:8443 nextgenhealthcare/connect

The -v option makes a local directory from your filesystem available to the Docker container. Create a folder on your local filesystem, then change the /local/path/to/appdata part in the example above to the correct local path.

You can also configure volumes as part of your docker-compose YAML stack file:

version: '3.1'
services:
  mc:
    image: nextgenhealthcare/connect
    volumes:
      - ~/Documents/appdata:/opt/connect/appdata

Additional extensions

The entrypoint script will automatically look for any ZIP files in the /opt/connect/custom-extensions folder and unzip them into the extensions folder before Connect starts up. So to launch Connect with any additional extensions not included in the base application, do this:

docker run -v /local/path/to/custom-extensions:/opt/connect/custom-extensions -p 8443:8443 nextgenhealthcare/connect

Create a folder on your local filesystem containing the ZIP files for your additional extensions. Then change the /local/path/to/custom-extensions part in the example above to the correct local path.

As with the appdata example, you can also configure this volume as part of your docker-compose YAML file.


License

The Dockerfiles, entrypoint script, and any other files used to build these Docker images are Copyright © NextGen Healthcare and licensed under the Mozilla Public License 2.0.

NextGen Connect is released under the Mozilla Public License 1.1. You can find a copy of the license in server/docs/LICENSE.txt. All licensing information regarding third-party libraries is located in the server/docs/thirdparty folder.

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