docker0s 2.0.0

Use docker-compose to manage multiple apps on a single host

Docker0s uses docker-compose to manage multiple containerised apps on a single host.

Bring together standard docker-compose files across multiple projects in a single simple manifest file, written in either YAML or Python with pre- and post-operation hooks, to deploy to a single host.

It’s designed for small self-hosted low-maintenance deployments which don’t need the complexity of Kubernetes - think k8s with zero features and a much simpler config syntax, with simple app manifests instead of helm charts.

There is a collection of ready-to-use app manifests at docker0s-manifests, with examples for how to deploy them to your host.

• Project site: https://radiac.net/projects/docker0s/

• Documentation: https://docker0s.readthedocs.io/

• Source code: https://github.com/radiac/docker0s

Quickstart

Install:

pip install docker0s

Put together a manifest in YAML as d0s-manifest.yml:

apps:
  traefik:
    extends: git+https://github.com/radiac/docker0s-manifests.git#traefik
    env_file: traefik.env
  smtp:
    compose: smtp.yml
  website:
    type: RepoApp
    extends: "git+ssh://[e-mail]:radiac/example.com.git@main"
    env:
      DOMAIN: example.radiac.net
host:
  name: example.radiac.net

or in Python as d0s-manifest.py, using subclassing to perform actions before and after operations and add custom functionality:

from docker0s import RepoApp

class Website(RepoApp):
    # Clone a repo to the host and look for docker-compose.yml in there
    extends = "git+ssh://[e-mail]:radiac/example.com.git@main"
    env = {
        "DOMAIN": "example.radiac.net"
    }

    # Subclass operation methods to add your own logic
    def deploy(self):
        # Perform action before deployment, eg clean up any previous deployment
        super().deploy()
        # Perform action after deployment, eg push additional resources

class Vagrant(Host):
    name = "vagrant"

See writing manifests for a full reference

Then run a command, eg:

d0s deploy
d0s up
d0s restart website.django
d0s exec website.django /bin/bash
d0s cmd website app_command arguments

See commands for a full command reference