xypron / octoprint-docker

The dockerized snappy web interface for your 3D printer!

OctoPrint-docker

This is the primary image of octoprint/octoprint. It is designed to work similarly, and support the same out of the box features as the octopi raspberry-pi machine image, using docker.

The octoprint/octoprint image uses semantic versioning, but the tags for octoprint/octoprint follow the version of octoprint contained in the image. As a result we recommend you always check the CHANGELOG or Releases before pulling an image, even if you are pulling the same tag.

You can subscribe to be notified of releases as well, by selecting the Watch button in the upper right corner, choosing "Custom", and checking "Releases".

In addition, we know that OctoPrint is not the best suited type of application for containerization, but we're working hard to make it as compatible as possible. Please check out our Roadmap, or join the discussion in the #dev-docker or #support-docker channels on the official OctoPrint Discord discord.octoprint.org.

Tags and platforms

All images for the octoprint/octoprint image are multi-arch images, and we publish for arm64, arm/v7, and amd64 using the below tags:

• latest - will always follow the latest stable release
• edge - will always follow the latest release including prereleases.
• canary - follows the OctoPrint/Octoprint@maintenance branch
• bleeding- follows the OctoPrint/Octoprint@devel branch
• X,X.Y,X.Y.Z,X.Y.Z-rc - these tags will follow the latest build that matches the tag
• minimal - This is built whenever latest is built, but uses the minimal image
• latest|edge|canary|bleeding|X.Y.Z-minimal - a minimal version of each of the tags described above, published under the same condition but from the minimal image

Table of Contents

• OctoPrint-docker
  • Usage
    • Configuration
      • Enabling Webcam Support with Docker
      • Container Environment Variables
      • Restarting OctoPrint
      • Editing Config files manually
  • Without docker-compose
  • Extended Documentation
  • Contributions Welcome

Usage

We recommend you use docker-compose to run octoprint via docker, and have included a recommended docker-compose.yml file for your convenience.

Save the contents of this file on your machine as docker-compose.yml, and then run docker-compose up -d.

Open octoprint at http://<octoprint_ip_or_url

Configuration

Enabling Webcam Support with Docker

In order to use the webcam, you'll need to make sure the webcam service is enabled. This is done by setting the environment variable ENABLE_MJPG_STREAMER=true in yourdocker run command, or in the docker-compose.yml file.

You'll also need to add --device /dev/video0:/dev/video0 to your docker run, or ensure it's listed in the devices array in your docker-compose.yml.

If you map a video device other than /dev/video0, you will additionally need to set an environment variable for CAMERA_DEV to match the mapped device mapping.

Make sure you use the following internal configuration (Settings » Webcam & Timelapse):

• Stream URL: /webcam/?action=stream
• Snapshot URL: http://localhost:8080/?action=snapshot
• Path to FFMPEG: /usr/bin/ffmpeg

URLs for reaching the camera from outside the container are:

• Stream: http://dockerIP:dockerport/webcam/?action=stream
• Snapshot: http://dockerport:dockerport/webcam/?action=snapshot

See container Environment Variables for a full list of webcam configuration options configured with docker.

Container Environment Variables

There are configuration values that you pass using container --environment options. Listed below are the options and their defaults. These are implicit in example docker-compose.yml, and if you wish to change them, refer to the docker-compose docs on setting environment variables.

variable	default	description
CAMERA_DEV	/dev/video0	The camera device(s) inside the container. (See Camera Devices note below)
MJPG_STREAMER_INPUT	-n -r 640x480	params for mjpg-streamer
ENABLE_MJPG_STREAMER	false	enable or disable mjpg-streamer
AUTOMIGRATE	false	Will attempt to detect and migrate filesystems structures from previous versions of this image to be compatible with the latest release version. recommend you backup before trying this as this is a new feature that has been difficult to test fully

Camera Devices

You will still need to declare the device mapping in your docker-compose file or docker command, even if you explicitly declare the CAMERA_DEV. The value of CAMERA_DEV is used in starting the mjpg-streamer service, whereas the devices mapping is used by docker to make sure the container has access to the device.

For example, if you change the CAMERA_DEV to be /dev/video1, you would also need to map /dev/video1:/dev/video1 in your container.

Multiple Cameras

You may optionally provide a comma separated list of devices such as /dev/video0,/dev/video1 to map multiple devices. Remember to map them all to the container in the devices array.

MJPG Streamer will be started for each device, and the stream URL will be /webcam/<device_name>/?action=stream where <device_name> is the name of the device, e.g. video0.

Within the container the MJPG port will start at 8080 and increment for each device, e.g. 8080, 8081, 8082, etc.

Restarting OctoPrint

Whilst the container should be pre-configured to allow for OctoPrint to be restarted within the container, there are still some edge cases where this pre-configuration does not take effect. If the option to restart OctopPrint is not present in the user interface, ensure the following command is present in the Restart OctoPrint field under the Server section of the OctoPrint Settings.

s6-svc -r /var/run/s6/services/octoprint

Editing Config files manually

This docker-compose file also contains a container based instance of vscode, accessible via your browser at the same url as your octoprint instance, allowing you to edit configuration files without needing to login to your octoprint host.

To make use of this editor, just uncomment the indicated lines in your docker-compose.yml then run the following commands:

docker-compose up -d config-editor

Now go to http://<octoprint_ip_or_url>:8443/?folder=/octoprint in your browser to edit your octoprint files! Use the 'explorer' (accessible by clicking the hamburger menu icon) to explore folder and files to load into the editor workspace.

All configuration files are in the octoprint folder, and the active configuration will be accessible at /octoprint/octoprint/config.yaml

When you're done, we recommend you stop and remove this service/container:

docker-compose stop config-editor && docker-compose rm config-editor

For full documentation about the config editor, see the docs for the product at github.com/cdr/code-server.

Without docker-compose

If you prefer to run without docker-compose, first create an octoprint docker volume on the host, and then start your container:

docker volume create octoprint
docker run -d -v octoprint:/octoprint --device /dev/ttyACM0:/dev/ttyACM0 --device /dev/video0:/dev/video0 -e ENABLE_MJPG_STREAMER=true -p 80:80 --name octoprint octoprint/octoprint

Extended Documentation

We are in the process of creating more extensive documentation for using the octoprint/octprint image. Check out the docs

If you would like to build the docker image yourself, please read building-an-octoprint-image

Contributions Welcome

We are welcoming contributions, and looking to add maintainers to the team. View CONTRIBUTING.md for more info!