Files
synapse/contrib/systemd/README.md
Quentin Gliech 16125cecd2 Remove the optional systemd-python dependency (#19491)
Summary
- drop the `systemd` extra from `pyproject.toml` and the
`systemd-python` optional dependency
- this means we don't ship the journald log handler, so it clarifies the
docs how to install that in the venv
- ensure the Debian virtualenv build keeps shipping
`systemd-python>=231` in the venv, so the packaged log config can keep
using `systemd.journal.JournalHandler`

Context of this is the following:

> Today in my 'how hard would it be to move to uv' journey:
https://github.com/systemd/python-systemd/issues/167
>
> The gist of it is that uv really wants to create a universal lock
file, which means it needs to be able to resolve the package metadata,
even for packages locked for other platforms. In the case of
systemd-python, they use mesonpy as build backend, which doesn't
implement prepare_metadata_for_build_wheel, which means it needs to run
meson to be able to resolve the package metadata. And it will hard-fail
if libsystemd dev headers aren't available 😭
>
> [*message in
#synapse-dev:matrix.org*](https://matrix.to/#/!i5D5LLct_DYG-4hQprLzrxdbZ580U9UB6AEgFnk6rZQ/$OKLB3TJVXAwq43sAZFJ-_PvMMzl4P_lWmSAtlmsoMuM?via=element.io&via=matrix.org&via=beeper.com)
2026-03-09 15:11:04 +00:00

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Markdown

# Setup Synapse with Systemd
This is a setup for managing synapse with a user contributed systemd unit
file. It provides a `matrix-synapse` systemd unit file that should be tailored
to accommodate your installation in accordance with the installation
instructions provided in
[installation instructions](https://element-hq.github.io/synapse/latest/setup/installation.html).
## Setup
1. Under the service section, ensure the `User` variable matches which user
you installed synapse under and wish to run it as.
2. Under the service section, ensure the `WorkingDirectory` variable matches
where you have installed synapse.
3. Under the service section, ensure the `ExecStart` variable matches the
appropriate locations of your installation.
4. Copy the `matrix-synapse.service` to `/etc/systemd/system/`
5. Start Synapse: `sudo systemctl start matrix-synapse`
6. Verify Synapse is running: `sudo systemctl status matrix-synapse`
7. *optional* Enable Synapse to start at system boot: `sudo systemctl enable matrix-synapse`
## Logging
If you use `contrib/systemd/log_config.yaml`, install `systemd-python` in the
same Python environment as Synapse. The config uses
`systemd.journal.JournalHandler`, which requires that package.