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wgsd-client: Add systemd timer/service example #52

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wgsd-client: Add systemd timer/service example #52

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16 changes: 16 additions & 0 deletions cmd/wgsd-client/systemd/README.md
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# wgsd-client systemd Integration

systemd timers can be used to periodically invoke `wgsd-client`.

## Installation

* Copy `[email protected]` to `/etc/systemd/system/`.
* Copy `[email protected]` to `/etc/systemd/system/`.

## Configuration

* To configure `wgsd-client` for WireGuard interface `wg-foo` copy `wg-example.template.env` to `/etc/wgsd/wg-foo.env` and adjust variables accordingly.

## Activation

* To activate periodic `wgsd-client` invocation for WireGuard interface `wg-foo` run `systemctl enable [email protected]`.
17 changes: 17 additions & 0 deletions cmd/wgsd-client/systemd/etc/systemd/system/[email protected]
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[Unit]
Description=WireGuard Service Discovery (wgsd) Client
Wants=network-online.target
After=network-online.target

[Service]
PermissionsStartOnly=true
LimitNOFILE=512
LimitNPROC=16
CapabilityBoundingSet=CAP_NET_ADMIN
AmbientCapabilities=CAP_NET_ADMIN
NoNewPrivileges=true
User=wgsd-client
Group=wgsd-client
DynamicUser=true
EnvironmentFile=/etc/wgsd/%i.env
ExecStart=/usr/local/bin/wgsd-client -device %i -dns $DNS -zone $ZONE
11 changes: 11 additions & 0 deletions cmd/wgsd-client/systemd/etc/systemd/system/[email protected]
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[Unit]
Description=Run WireGuard Service Discovery (wgsd) Client

[Timer]
OnActiveSec=10
OnUnitActiveSec=45
AccuracySec=1s
Persistent=true

[Install]
WantedBy=timers.target
2 changes: 2 additions & 0 deletions cmd/wgsd-client/systemd/etc/wgsd/wg-example.template.env
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DNS=10.13.37.1:5353
ZONE=wg.example.net.