BluestNight provides an official Docker image for Nebula Forms, for easy setup. This guide describes how to set up the Docker image for use with Docker Compose.
This guide assumes that you already have Docker and Docker Compose installed. If not, download and install them. Links are provided below for convenience.
- Windows: Docker (Docker Compose should be bundled).
- Mac: Docker (Docker Compose should be bundled).
- Linux: Install
docker-composethrough the package manager (package names may vary).
- FreeBSD: Install
Download the Latest Image
Different tagged images of Nebula Forms are provided for convenience.
develis built with changes that have not been tested yet and should not be used for production systems. You may be asked to use this image to test that an issue got fixed.
latestcontains the current release of Nebula and is updated to the newest version when it is released.
- There are also versions for each release of Nebula to allow reverting to an
older working version in case incompatible changes occur. These are tagged
A.B.Ccorresponds to a version number.
It’s recommended to use the
latest image, like so:
docker pull bluestnight/nebula-forms:latest
Create The Configuration File(s)
To avoid duplicating content, refer to the
getting started guide for a walkthrough of setting up the
configuration. This guide assumes you are using a Linux system with the
configuration file(s) contained in
Create The Docker Compose File
Docker Compose is a tool used for managing multiple containers on a single Docker installation. Configuration options are set in a configuration file instead of on the command-line. Configuration files are written in YAML - you can find documentation for Docker Compose files here.
Below, you can find a working template file for Nebula Forms. This guide
assumes the file will be saved to
version: "3.2" services: nebula: image: bluestnight/nebula-forms:latest # This maps port 2002 in the container to 2003 on the host port: - "2003:2002" # Instructs docker-compose how to deploy the container and # when/whether to restart it. deploy: replicas: 1 restart_policy: condition: on-failure # Define resource limits and reservations resources: limits: cpus: '0.40' # Max 40% of CPU time memory: 50M # Max 50 MiB of RAM reservations: cpus: '0.05' # Reserve 5% of CPU time memory: 10M # Reserve 10 MiB of RAM # Set an environment variable for where the entry config # file is located in the container. Defaults to # /etc/nebula-forms/config.toml if not set. environment: CONFIG_FILE: /etc/nebula-forms/config.toml # Configure where logs can be found on host system. # Can be set to journald on systemd systems logging: driver: json-file # Mounts a directory on the host inside the container volumes: - type: bind source: /etc/nebula-forms target: /etc/nebula-forms
Starting/Stopping The Container
Start the container using
docker-compose -f /etc/docker/docker-compose.yml up
The container can be stopped later:
docker-compose -f /etc/docker/docker-compose.yml down
For other things, check the Docker Compose reference.
Set Up a Reverse Proxy
To have Nebula available on ports 80 or 443 (standard HTTP(S)), you should set up a reverse proxy.