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CoreOS Service Configuration

This directory contains a set of common services available for deployment onto a CoreOS Home Server setup, and managed via systemd and Podman. Each service is given its own subdirectory, and each follows a set of common conventions in laying out its files.

Specifically, for a service example, we might find the following files and directories under the corresponding directory:

  • spec.bu -- This file is typically included by the host configuration, and is intended with installing any additional service files required for enabling the service.

  • Containerfile -- This file is used in building a container image, handled by the container-build@example service and presumably used in the systemd file for the example service.

  • example.env.template -- An optional file containing KEY=value definitions that can then be used in the systemd service. Host-wide environment is also available in this context, and can be used in expanding shared configuration, secrets, etc. This file is used by the container-environment@example service.

  • systemd/ -- This directory contains systemd configuration, to be copied into the host-wide /etc/systemd/system directory. You'll typically find things like example.service files which run the service under Podman, as well as potential one-off services which copy files around in pre-existing Podman containers.

  • quadlet/ -- This directory contains configuration for Quadlet, aka podman-systemd.unit, which allows for generating comprehensive Systemd configuration from more idiomatic templates. Most services will be found as example.container files, installed under /etc/containers/systemd in running systems.

  • container/ -- This directory contains any static files included in the Podman image, including templated configuration, scripts, etc.

  • service/ -- This (largely optional) directory contains files required by the systemd services themselves, and which are not included in the Podman images by default; examples include database migration files, one-off configuration files, etc.

Of all these files, the only ones whose paths are mandated by external services are the Containerfile and <name>.env.template files, neither of which are required by anything other than convention (i.e. you can choose not to build a container image via the systemd service).

Each service here might have additional details on how it's expected to be deployed and used, check the respective README.md files for more information.