90 lines
3.7 KiB
Markdown
90 lines
3.7 KiB
Markdown
# Wireguard
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This is a simple Docker image to run a Wireguard client. It includes a kill switch to ensure that any traffic not encrypted via Wireguard is dropped.
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Wireguard is implemented as a kernel module, which is key to its performance and simplicity. However, this means that Wireguard _must_ be installed on the host operating system for this container to work properly. Instructions for installing Wireguard can be found [here](http://wireguard.com/install).
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You will need a configuration file for your Wireguard interface. Many VPN providers will create this configuration file for you. For example, [here](http://mullvad.net/en/download/wireguard-config) is the configuration generator for Mullvad. Be sure to NOT include a kill switch in the configuration file, since the Docker image already has one.
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Now simply mount the configuration file and run! For example, if your configuration file is located at `/path/to/conf/mullvad.conf`:
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```bash
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docker run --name wireguard \
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--cap-add NET_ADMIN \
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--cap-add SYS_MODULE \
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--sysctl net.ipv4.conf.all.src_valid_mark=1 \
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-v /path/to/conf/mullvad.conf:/etc/wireguard/mullvad.conf \
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jordanpotter/wireguard
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```
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Afterwards, you can link other containers to this one:
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```bash
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docker run -it --rm \
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--net=container:wireguard \
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appropriate/curl http://httpbin.org/ip
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```
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## Docker Compose
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Here is the same example as above, but using Docker Compose:
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```yml
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services:
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wireguard:
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container_name: wireguard
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image: jordanpotter/wireguard
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cap_add:
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- NET_ADMIN
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- SYS_MODULE
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sysctls:
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net.ipv4.conf.all.src_valid_mark: 1
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volumes:
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- /path/to/conf/mullvad.conf:/etc/wireguard/mullvad.conf
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restart: unless-stopped
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curl:
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image: appropriate/curl
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command: http://httpbin.org/ip
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network_mode: container:wireguard
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depends_on:
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- wireguard
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```
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## Local Network
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If you wish to allow traffic to your local network, specify the subnet using the `LOCAL_SUBNET` environment variable:
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```bash
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docker run --name wireguard \
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--cap-add NET_ADMIN \
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--cap-add SYS_MODULE \
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--sysctl net.ipv4.conf.all.src_valid_mark=1 \
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-v /path/to/conf/mullvad.conf:/etc/wireguard/mullvad.conf \
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-e LOCAL_SUBNET=10.0.0.0/8 \
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jordanpotter/wireguard
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```
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Additionally, you can expose ports to allow your local network to access services linked to the Wireguard container:
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```bash
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docker run --name wireguard \
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--cap-add NET_ADMIN \
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--cap-add SYS_MODULE \
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--sysctl net.ipv4.conf.all.src_valid_mark=1 \
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-v /path/to/conf/mullvad.conf:/etc/wireguard/mullvad.conf \
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-p 8080:80 \
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jordanpotter/wireguard
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```
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```bash
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docker run -it --rm \
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--net=container:wireguard \
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nginx
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```
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## Versioning
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Wireguard is new technology and its behavior may change in the future. For this reason, it's recommended to specify an image tag when running this container, such as `jordanpotter/wireguard:2.1.1`.
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The available tags are listed [here](https://hub.docker.com/r/jordanpotter/wireguard/tags).
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