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gluetun/README.md
2019-11-24 11:04:55 -05:00

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# Private Internet Access Client
*Lightweight swiss-knife-like VPN client to tunnel to private internet access servers, using OpenVPN, iptables, DNS over TLS, ShadowSocks, Tinyproxy and more*
**ANNOUCEMENT**: Supports all CPU architectures :art: just pull the image!
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<details><summary>Click to show base components</summary><p>
- [Alpine 3.10](https://alpinelinux.org) for a tiny image
- [OpenVPN 2.4.7](https://pkgs.alpinelinux.org/package/v3.10/main/x86_64/openvpn) to tunnel to PIA servers
- [IPtables 1.8.3](https://pkgs.alpinelinux.org/package/v3.10/main/x86_64/iptables) enforces the container to communicate only through the VPN or with other containers in its virtual network (acts as a killswitch)
- [Unbound 1.9.1](https://pkgs.alpinelinux.org/package/v3.10/main/x86_64/unbound) configured with Cloudflare's [1.1.1.1](https://1.1.1.1) DNS over TLS
- [Files and blocking lists built periodically](https://github.com/qdm12/updated/tree/master/files) used with Unbound (see `BLOCK_MALICIOUS` and `BLOCK_NSA` environment variables)
- [TinyProxy 1.10.0](https://pkgs.alpinelinux.org/package/v3.10/main/x86_64/tinyproxy)
</p></details>
## Features
- <details><summary>Configure everything with environment variables</summary><p>
- [Destination region](https://www.privateinternetaccess.com/pages/network)
- Internet protocol
- Level of encryption
- PIA Username and password
- DNS over TLS
- Malicious DNS blocking
- Internal firewall
- Web HTTP proxy
- Run openvpn without root
</p></details>
- Connect other containers to it, [see this](https://github.com/qdm12/private-internet-access-docker#connect-to-it)
- Compatible with amd64, i686 (32 bit), ARM 64 bit, ARM 32 bit v6 and v7, ppc64le and even that s390x 🎆
- Port forwarding
- The *iptables* firewall allows traffic only with needed PIA servers (IP addresses, port, protocol) combinations
- OpenVPN reconnects automatically on failure
- Docker healthcheck pings the DNS 1.1.1.1 to verify the connection is up
- Unbound DNS runs *without root*
- OpenVPN runs *without root* by default. You can run it with root with the environment variable `NONROOT=no`
- Connect your LAN devices
- HTTP Web proxy *tinyproxy*
- SOCKS5 proxy *shadowsocks* (better as it does UDP too)
## Setup
1. <details><summary>Requirements</summary><p>
- A Private Internet Access **username** and **password** - [Sign up](https://www.privateinternetaccess.com/pages/buy-vpn/)
- External firewall requirements, if you have one
- Allow outbound TCP 853 to 1.1.1.1 to allow Unbound to resolve the PIA domain name at start. You can then block it once the container is started.
- For UDP strong encryption, allow outbound UDP 1197
- For UDP normal encryption, allow outbound UDP 1198
- For TCP strong encryption, allow outbound TCP 501
- For TCP normal encryption, allow outbound TCP 502
- For the built-in web HTTP proxy, allow inbound TCP 8888
- For the built-in SOCKS5 proxy, allow inbound TCP 8388 and UDP 8388
- Docker API 1.25 to support `init`
- If you use Docker Compose, docker-compose >= 1.22.0, to support `init: true`
</p></details>
1. Ensure `/dev/net/tun` is setup on your host with either:
```sh
insmod /lib/modules/tun.ko
# or...
modprobe tun
```
1. Launch the container with:
```bash
docker run -d --init --name=pia --cap-add=NET_ADMIN --device=/dev/net/tun \
-e REGION="CA Montreal" -e USER=js89ds7 -e PASSWORD=8fd9s239G \
qmcgaw/private-internet-access
```
or use [docker-compose.yml](https://github.com/qdm12/private-internet-access-docker/blob/master/docker-compose.yml) with:
```bash
docker-compose up -d
```
Note that you can:
- Change the many [environment variables](#environment-variables) available
- Use `-p 8888:8888/tcp` to access the HTTP web proxy (and put your LAN in `EXTRA_SUBNETS` environment variable)
- Use `-p 8388:8388/tcp -p 8388:8388/udp` to access the SOCKS5 proxy (and put your LAN in `EXTRA_SUBNETS` environment variable)
- Pass additional arguments to *openvpn* using Docker's command function (commands after the image name)
1. You can update the image with `docker pull qmcgaw/private-internet-access:latest`. There are also docker tags available:
- `qmcgaw/private-internet-access:v1` linked to the [v1 release](https://github.com/qdm12/private-internet-access-docker/releases/tag/v1.0)
## Testing
Check the PIA IP address matches your expectations
```sh
docker run --rm --network=container:pia alpine:3.10 wget -qO- https://ipinfo.io
```
## Environment variables
| Environment variable | Default | Description |
| --- | --- | --- |
| `REGION` | `CA Montreal` | One of the [PIA regions](https://www.privateinternetaccess.com/pages/network/) |
| `PROTOCOL` | `udp` | `tcp` or `udp` |
| `ENCRYPTION` | `strong` | `normal` or `strong` |
| `USER` | | Your PIA username |
| `PASSWORD` | | Your PIA password |
| `NONROOT` | `yes` | Run OpenVPN without root, `yes` or `no` |
| `DOT` | `on` | `on` or `off`, to activate DNS over TLS to 1.1.1.1 |
| `BLOCK_MALICIOUS` | `off` | `on` or `off`, blocks malicious hostnames and IPs |
| `BLOCK_NSA` | `off` | `on` or `off`, blocks NSA hostnames |
| `UNBLOCK` | | comma separated string (i.e. `web.com,web2.ca`) to unblock hostnames |
| `EXTRA_SUBNETS` | | comma separated subnets allowed in the container firewall (i.e. `192.168.1.0/24,192.168.10.121,10.0.0.5/28`) |
| `PORT_FORWARDING` | `off` | Set to `on` to forward a port on PIA server |
| `PORT_FORWARDING_STATUS_FILE` | `/forwarded_port` | File path to store the forwarded port number |
| `TINYPROXY` | `on` | `on` or `off`, to enable the internal HTTP proxy tinyproxy |
| `TINYPROXY_LOG` | `Critical` | `Info`, `Warning`, `Error` or `Critical` |
| `TINYPROXY_PORT` | `8888` | `1024` to `65535` internal port for HTTP proxy |
| `TINYPROXY_USER` | | Username to use to connect to the HTTP proxy |
| `TINYPROXY_PASSWORD` | | Passsword to use to connect to the HTTP proxy |
| `SHADOWSOCKS` | `on` | `on` or `off`, to enable the internal SOCKS5 proxy Shadowsocks |
| `SHADOWSOCKS_LOG` | `on` | `on` or `off` to enable logging for Shadowsocks |
| `SHADOWSOCKS_PORT` | `8388` | `1024` to `65535` internal port for SOCKS5 proxy |
| `SHADOWSOCKS_PASSWORD` | | Passsword to use to connect to the SOCKS5 proxy |
| `TZ` | | Specify a timezone to use e.g. `Europe/London` |
## Connect to it
There are various ways to achieve this, depending on your use case.
- <details><summary>Connect containers in the same docker-compose.yml as PIA</summary><p>
Add `network_mode: "service:pia"` to your *docker-compose.yml* (no need for `depends_on`)
</p></details>
- <details><summary>Connect other containers to PIA</summary><p>
Add `--network=container:pia` when launching the container, provided PIA is already running
</p></details>
- <details><summary>Connect containers from another docker-compose.yml</summary><p>
Add `network_mode: "container:pia"` to your *docker-compose.yml*, provided PIA is already running
</p></details>
- <details><summary>Connect LAN devices through the built-in HTTP proxy *Tinyproxy* (i.e. with Chrome, Kodi, etc.)</summary><p>
1. Setup a HTTP proxy client, such as [SwitchyOmega for Chrome](https://chrome.google.com/webstore/detail/proxy-switchyomega/padekgcemlokbadohgkifijomclgjgif?hl=en)
1. Ensure the PIA container is launched with:
- port `8888` published `-p 8888:8888/tcp`
- your LAN subnet, i.e. `192.168.1.0/24`, set as `-e EXTRA_SUBNETS=192.168.1.0/24`
1. With your HTTP proxy client, connect to the Docker host (i.e. `192.168.1.10`) on port `8888`. You need to enter your credentials if you set them with `TINYPROXY_USER` and `TINYPROXY_PASSWORD`.
1. If you set `TINYPROXY_LOG` to `Info`, more information will be logged in the Docker logs, merged with the OpenVPN logs.
`TINYPROXY_LOG` defaults to `Critical` to avoid logging everything, for privacy purposes.
</p></details>
- <details><summary>Connect LAN devices through the built-in SOCKS5 proxy *Shadowsocks* (per app, system wide, etc.)</summary><p>
1. Setup a SOCKS5 proxy client, there is a list of [ShadowSocks clients for **all platforms**](https://shadowsocks.org/en/download/clients.html)
- **note** some clients do not tunnel UDP so your DNS queries will be done locally and not through PIA and its built in DNS over TLS
- Clients that support such UDP tunneling are, as far as I know:
- iOS: Potatso Lite
- OSX: ShadowsocksX
- Android: Shadowsocks by Max Lv
1. Ensure the PIA container is launched with:
- port `8388` published `-p 8388:8388/tcp -p 8388:8388/udp`
- your LAN subnet, i.e. `192.168.1.0/24`, set as `-e EXTRA_SUBNETS=192.168.1.0/24`
1. With your SOCKS5 proxy client
- Enter the Docker host (i.e. `192.168.1.10`) as the server IP
- Enter port TCP (and UDP, if available) `8388` as the server port
- Use the password you have set with `SHADOWSOCKS_PASSWORD`
- Choose the encryption method/algorithm `chacha20-ietf-poly1305`
1. If you set `SHADOWSOCKS_LOG` to `on`, more information will be logged in the Docker logs, merged with the OpenVPN logs.
</p></details>
- <details><summary>Access ports of containers connected to PIA</summary><p>
In example, to access port `8000` of container `xyz` and `9000` of container `abc` connected to PIA,
publish ports `8000` and `9000` for the PIA container and access them as you would with any other container
</p></details>
- <details><summary>Access ports of containers connected to PIA, all in the same docker-compose.yml</summary><p>
In example, to access port `8000` of container `xyz` and `9000` of container `abc` connected to PIA, publish port `8000` and `9000` for the PIA container.
The docker-compose.yml file would look like:
```yml
version: '3.7'
services:
pia:
image: qmcgaw/private-internet-access
container_name: pia
init: true
cap_add:
- NET_ADMIN
devices:
- /dev/net/tun
environment:
- USER=js89ds7
- PASSWORD=8fd9s239G
ports:
- 8000:8000/tcp
- 9000:9000/tcp
abc:
image: abc
container_name: abc
network_mode: "service:pia"
xyz:
image: xyz
container_name: xyz
network_mode: "service:pia"
```
</p></details>
## Port forwarding
By setting `PORT_FORWARDING` environment variable to `on`, the forwarded port will be read and written to the file specified in `PORT_FORWARDING_STATUS_FILE` (by default, this is set to `/forwarded_port`). If the location for this file does not exist, it will be created automatically.
You can mount this file as a volume to read it from other containers.
Note that not all regions support port forwarding.
## For the paranoids
- You can review the code which essential consists in the [Dockerfile](https://github.com/qdm12/private-internet-access-docker/blob/master/Dockerfile) and [entrypoint.sh](https://github.com/qdm12/private-internet-access-docker/blob/master/entrypoint.sh)
- Build the images yourself:
```bash
docker build -t qmcgaw/private-internet-access https://github.com/qdm12/private-internet-access-docker.git
```
- The download and unziping of PIA openvpn files is done at build for the ones not able to download the zip files
- Checksums for PIA openvpn zip files are not used as these files change often (but HTTPS is used)
- Use `-e ENCRYPTION=strong -e BLOCK_MALICIOUS=on`
- You can test DNSSEC using [internet.nl/connection](https://www.internet.nl/connection/)
- Check DNS leak tests with [https://www.dnsleaktest.com](https://www.dnsleaktest.com)
- DNS Leaks tests might not work because of [this](https://github.com/qdm12/cloudflare-dns-server#verify-dns-connection) (*TLDR*: DNS server is a local caching intermediary)
## Troubleshooting
- Password problems `AUTH: Received control message: AUTH_FAILED`
- Your password may contain a special character such as `$`.
You need to escape it with `\` in your run command or docker-compose.yml.
For example you would set `-e PASSWORD=mypa\$\$word`.
- Fallback to a previous version
1. Clone the repository on your machine
```sh
git clone https://github.com/qdm12/private-internet-access-docker.git pia
cd pia
```
1. Look up which commit you want to go back to [here](https://github.com/qdm12/private-internet-access-docker/commits/master), i.e. `942cc7d4d10545b6f5f89c907b7dd1dbc39368e0`
1. Revert to this commit locally
```sh
git reset --hard 942cc7d4d10545b6f5f89c907b7dd1dbc39368e0
```
1. Build the Docker image
```sh
docker build -t qmcgaw/private-internet-access .
```
## TODOs
- Golang binary to setup the container at start, and:
- Mix logs of unbound, tinyproxy, shadowsocks and openvpn together somehow
- support other VPN providers
- Maybe use `--inactive 3600 --ping 10 --ping-exit 60` as default behavior
- Try without tun
## License
This repository is under an [MIT license](https://github.com/qdm12/private-internet-access-docker/master/license)