mirror of
https://github.com/outbackdingo/firezone.git
synced 2026-01-27 10:18:54 +00:00
Our logging library `tracing` supports structured logging. Structured logging means we can include values within a `tracing::Event` without having to immediately format it as a string. Processing these values - such as errors - as their original type allows the various `tracing` layers to capture and represent them as they see fit. One of these layers is responsible for sending ERROR and WARN events to Sentry, as part of which `std::error::Error` values get automatically captured as so-called "sentry exceptions". Unfortunately, there is a caveat: If an `std::error::Error` value is included in an event that does not get mapped to an exception, the `error` field is completely lost. See https://github.com/getsentry/sentry-rust/issues/702 for details. To work around this, we introduce a `err_with_sources` adapter that an error and all its sources together into a string. For all `tracing::debug!` statements, we then use this to report these errors. It is really unfortunate that we have to do this and cannot use the same mechanism, regardless of the log level. However, until this is fixed upstream, this will do and gives us better information in the log submitted to Sentry.
gateway
This crate houses the Firezone gateway.
Building
You can build the gateway using: cargo build --release --bin firezone-gateway
You should then find a binary in target/release/firezone-gateway.
Running
The Firezone Gateway supports Linux only. To run the Gateway binary on your Linux host:
- Generate a new Gateway token from the "Gateways" section of the admin portal and save it in your secrets manager.
- Ensure the
FIREZONE_TOKEN=<gateway_token>environment variable is set securely in your Gateway's shell environment. The Gateway requires this variable at startup. - Set
FIREZONE_IDto a unique string to identify this gateway in the portal, e.g.export FIREZONE_ID=$(uuidgen). The Gateway requires this variable at startup. - Now, you can start the Gateway with:
firezone-gateway
If you're running as a non-root user, you'll need the CAP_NET_ADMIN capability
to open /dev/net/tun. You can add this to the gateway binary with:
sudo setcap 'cap_net_admin+eip' /path/to/firezone-gateway
Ports
The gateway requires no open ports. Connections automatically traverse NAT with STUN/TURN via the relay.