Dockerfile for macchina.io EDGE

This repository contains a Dockerfile and related files for building a Docker image with macchina.io EDGE, based on Alpine Linux.

Build

To build this image locally, run the following command (with docker-compose installed):

$ docker-compose build

or directly by running docker:

$ docker build . -t macchina/edge-ce

Run

To start a macchina.io EDGE container locally, you can execute:

$ docker-compose up -d

or directly by docker:

$ docker run -p 22080:22080 macchina/edge-ce

Both commands bind port 22080 from docker container to port 22080 on host, so the web interface is available at http://localhost:22080

Accessing Devices

Serial devices and USB devices implementing a virtual serial port can be accessed from the container by exposing the device to the container when creating it:

   $ docker run -p 22080:22080 --device=/dev/ttyACM0 macchina/edge-ce

In the above example, the device /dev/ttyACM0 will be available to macchina.io EDGE in the container. Note: on some devices it may also be necessary to add the macchina user in the container to a specific group in order to be able to access that device. On most systems, it is the dialout group, and the Dockerfile already adds the macchina user to that group. If another group is required, the Dockerfile must be changed.

To access Linux GPIO devices (via /sys/class/gpio, as implemented in the macchina.io EDGE Linux GPIO support), the container must be run in privileged mode:

   $ docker run -p 22080:22080 --privileged macchina/edge-ce

The Dockerfile creates the gpio group (997), in order for GPIO support to work on a Raspberry Pi, and adds the macchina user to that group. For other devices, this may have to be changed in the Dockerfile.

The necessary configuration settings for enable certain devices can be made in the Settings app in the macchina.io EDGE web interface. After adding or changing the necessary configuration properties, don't forget to save the configuration and restart the affected bundles for the configuration changes to take effect.

Configuration

Some configuration settings can be changed via environment variables. The following environment variables can be set:

• HTTP_PORT: Port number of the macchina.io EDGE web server (default: 22080)
• HTTPS_PORT: Port number of the macchina.io EDGE secure (HTTPS) web server (default: 22443)
• TLS_SERVER_CERT: Path to X509 certificate file in PEM format for secure web server (default: /opt/macchina/etc/macchina.pem)
• TLS_SERVER_KEY: Path to certificate private key file (default: /opt/macchina/etc/macchina.pem)
• LOGPATH: Path of log file (default: /opt/macchina/var/log/macchina.log)
• LOGLEVEL: Log level (debug, information, notice, warning, error, critical, fatal, none; default: information)
• LOGCHANNEL: Default log channel (console or file; default: console)
• ADMIN_PASSWORD_HASH: MD5 hash of edgeadmin account password
• USER_PASSWORD_HASH: MD5 hash of edgeuser account password

Note: you can generate the MD5 password hash with the following command:

$ echo -n "password" | md5sum