71 lines
2.7 KiB
Markdown
71 lines
2.7 KiB
Markdown
---
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title: Using Weave with Systemd
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menu_order: 40
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search_type: Documentation
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---
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Having installed Weave Net as per [Installing Weave](/site/install/installing-weave.md), you might find it convenient to configure the
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init daemon to start Weave on boot. Most recent Linux distribution releases ship with [systemd](http://www.freedesktop.org/wiki/Software/systemd/). The information below provides you with some initial guidance on getting a Weave Net service configured on a systemd-based OS.
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## Weave Net Service Unit and Configuration
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A regular service unit definition for Weave Net is shown below. This file is
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normally placed in `/etc/systemd/system/weave.service`.
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[Unit]
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Description=Weave Network
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Documentation=http://docs.weave.works/weave/latest_release/
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Requires=docker.service
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After=docker.service
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[Service]
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EnvironmentFile=-/etc/sysconfig/weave
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ExecStartPre=/usr/local/bin/weave launch --no-restart $PEERS
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ExecStart=/usr/bin/docker attach weave
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ExecStop=/usr/local/bin/weave stop
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[Install]
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WantedBy=multi-user.target
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To specify the addresses or names of other Weave hosts to join the network,
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create the `/etc/sysconfig/weave` environment file using the following format:
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PEERS="HOST1 HOST2 .. HOSTn"
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You can also use the [`weave connect`](/site/tasks/manage/finding-adding-hosts-dynamically.md) command to add participating hosts dynamically.
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Additionally, if you want to enable [encryption](/site/tasks/manage/security-untrusted-networks.md) specify a
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password using `WEAVE_PASSWORD="wfvAwt7sj"` in the `/etc/sysconfig/weave` environment file, and it will get picked up by
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Weave Net on launch. Recommendations for choosing a suitably strong password can be found [here](/site/tasks/manage/security-untrusted-networks.md).
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You can now launch Weave Net using
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sudo systemctl start weave
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To ensure Weave Net launches after reboot, run:
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sudo systemctl enable weave
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For more information on systemd, please refer to the documentation supplied
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with your distribution of Linux.
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## SELinux Tweaks
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If your OS has SELinux enabled and you want to run Weave Net as a systemd unit,
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then follow the instructions below. These instructions apply to
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CentOS and RHEL as of 7.0. On Fedora 21, there is no need to do this.
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Once `weave` is installed in `/usr/local/bin`, set its execution
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context with the commands shown below. You will need to have the
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`policycoreutils-python` package installed.
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sudo semanage fcontext -a -t unconfined_exec_t -f f /usr/local/bin/weave
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sudo restorecon /usr/local/bin/weave
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**See Also**
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* [Launching Weave Net](/site/install/using-weave.md)
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* [Tutorials](https://www.weave.works/docs/tutorials/)
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* [Features](/site/overview/features.md)
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* [Troubleshooting](/site/troubleshooting.md)
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