what is gluetun fr?

Gluetun is a VPN client packaged as a small Docker container. You give it your VPN provider credentials, and it connects to that VPN and routes internet traffic through it. The main use case in self-hosted setups is running Gluetun as a shared network gateway so that other containers (a torrent client, for example) can have all their traffic go through the VPN without each one needing its own VPN setup. The container supports more than twenty VPN providers, including NordVPN, Mullvad, ProtonVPN, Private Internet Access, ExpressVPN, Surfshark, and others. Both OpenVPN and WireGuard connection protocols are supported. A built-in kill switch blocks all internet traffic if the VPN connection drops, preventing any accidental exposure of unencrypted traffic. The container image is 43 megabytes and is built on Alpine Linux. Beyond the VPN tunnel itself, Gluetun includes DNS over TLS, which encrypts DNS lookups so your internet provider cannot see which domain names you are resolving. It also includes a built-in blocklist for ads, malicious sites, and tracking domains, which updates automatically every 24 hours. Two proxy servers are built in as well: a standard HTTP proxy and a Shadowsocks proxy, which can be used to route traffic from devices or applications that cannot themselves run a VPN. The container runs on x86 machines, 32-bit and 64-bit ARM boards such as the Raspberry Pi, and other architectures. It can also run as a sidecar container in Kubernetes clusters. Configuration is done through environment variables passed into the container. Setup documentation lives on a separate wiki repository, and each supported VPN provider has its own setup page there with example configuration files.