fedimint_logging/
lib.rs

1#![deny(clippy::pedantic)]
2#![allow(clippy::missing_errors_doc)]
3#![allow(clippy::missing_panics_doc)]
4
5//! Constants for categorizing the logging type
6//!
7//! To help stabilize logging targets, avoid typos and improve consistency,
8//! it's preferable for logging statements use static target constants,
9//! that we define in this module.
10//!
11//! Core + server side components should use global namespace,
12//! while client should generally be prefixed with `client::`.
13//! This makes it easier to filter interesting calls when
14//! running e.g. `devimint`, that will run both server and client
15//! side.
16
17use std::fs::File;
18use std::{env, io};
19
20use tracing_subscriber::layer::SubscriberExt;
21use tracing_subscriber::util::SubscriberInitExt;
22use tracing_subscriber::{EnvFilter, Layer};
23
24pub const LOG_CONSENSUS: &str = "fm::consensus";
25pub const LOG_CORE: &str = "fm::core";
26pub const LOG_SERVER: &str = "fm::server";
27pub const LOG_DB: &str = "fm::db";
28pub const LOG_DEVIMINT: &str = "fm::devimint";
29pub const LOG_NET: &str = "fm::net";
30pub const LOG_NET_IROH: &str = "fm::net::iroh";
31pub const LOG_NET_WS: &str = "fm::net::ws";
32pub const LOG_NET_API: &str = "fm::net::api";
33pub const LOG_NET_PEER_DKG: &str = "fm::net::peer::dkg";
34pub const LOG_NET_PEER: &str = "fm::net::peer";
35pub const LOG_NET_AUTH: &str = "fm::net::auth";
36pub const LOG_TASK: &str = "fm::task";
37pub const LOG_RUNTIME: &str = "fm::runtime";
38pub const LOG_TEST: &str = "fm::test";
39pub const LOG_TIMING: &str = "fm::timing";
40pub const LOG_CLIENT: &str = "fm::client";
41pub const LOG_CLIENT_DB: &str = "fm::client::db";
42pub const LOG_CLIENT_EVENT_LOG: &str = "fm::client::event-log";
43pub const LOG_MODULE_MINT: &str = "fm::module::mint";
44pub const LOG_MODULE_META: &str = "fm::module::meta";
45pub const LOG_MODULE_WALLET: &str = "fm::module::wallet";
46pub const LOG_MODULE_LN: &str = "fm::module::ln";
47pub const LOG_MODULE_LNV2: &str = "fm::module::lnv2";
48pub const LOG_CLIENT_REACTOR: &str = "fm::client::reactor";
49pub const LOG_CLIENT_NET_API: &str = "fm::client::net::api";
50pub const LOG_CLIENT_BACKUP: &str = "fm::client::backup";
51pub const LOG_CLIENT_RECOVERY: &str = "fm::client::recovery";
52pub const LOG_CLIENT_RECOVERY_MINT: &str = "fm::client::recovery::mint";
53pub const LOG_CLIENT_MODULE_MINT: &str = "fm::client::module::mint";
54pub const LOG_CLIENT_MODULE_META: &str = "fm::client::module::meta";
55pub const LOG_CLIENT_MODULE_LN: &str = "fm::client::module::ln";
56pub const LOG_CLIENT_MODULE_LNV2: &str = "fm::client::module::lnv2";
57pub const LOG_CLIENT_MODULE_WALLET: &str = "fm::client::module::wallet";
58pub const LOG_CLIENT_MODULE_GW: &str = "fm::client::module::gw";
59pub const LOG_CLIENT_MODULE_GWV2: &str = "fm::client::module::gwv2";
60pub const LOG_GATEWAY: &str = "fm::gw";
61pub const LOG_BITCOIND_ESPLORA: &str = "fm::bitcoind::esplora";
62pub const LOG_BITCOIND_CORE: &str = "fm::bitcoind::bitcoincore";
63pub const LOG_BITCOIND: &str = "fm::bitcoind";
64pub const LOG_BITCOIN: &str = "fm::bitcoin";
65
66/// Consolidates the setup of server tracing into a helper
67#[derive(Default)]
68pub struct TracingSetup {
69    base_level: Option<String>,
70    extra_directives: Option<String>,
71    #[cfg(feature = "telemetry")]
72    tokio_console_bind: Option<std::net::SocketAddr>,
73    #[cfg(feature = "telemetry")]
74    with_jaeger: bool,
75    with_file: Option<File>,
76}
77
78impl TracingSetup {
79    /// Setup a console server for tokio logging <https://docs.rs/console-subscriber>
80    #[cfg(feature = "telemetry")]
81    pub fn tokio_console_bind(&mut self, address: Option<std::net::SocketAddr>) -> &mut Self {
82        self.tokio_console_bind = address;
83        self
84    }
85
86    /// Setup telemetry through Jaeger <https://docs.rs/tracing-jaeger>
87    #[cfg(feature = "telemetry")]
88    pub fn with_jaeger(&mut self, enabled: bool) -> &mut Self {
89        self.with_jaeger = enabled;
90        self
91    }
92
93    pub fn with_file(&mut self, file: Option<File>) -> &mut Self {
94        self.with_file = file;
95        self
96    }
97
98    /// Sets the log level applied to most modules. Some overly chatty modules
99    /// are muted even if this is set to a lower log level, use the `RUST_LOG`
100    /// environment variable to override.
101    pub fn with_base_level(&mut self, level: impl Into<String>) -> &mut Self {
102        self.base_level = Some(level.into());
103        self
104    }
105
106    /// Add a filter directive.
107    pub fn with_directive(&mut self, directive: &str) -> &mut Self {
108        if let Some(old) = self.extra_directives.as_mut() {
109            *old = format!("{old},{directive}");
110        } else {
111            self.extra_directives = Some(directive.to_owned());
112        }
113        self
114    }
115
116    /// Initialize the logging, must be called for tracing to begin
117    pub fn init(&mut self) -> anyhow::Result<()> {
118        use tracing_subscriber::fmt::writer::{BoxMakeWriter, Tee};
119
120        let var = env::var(tracing_subscriber::EnvFilter::DEFAULT_ENV).unwrap_or_default();
121        let filter_layer = EnvFilter::builder().parse(format!(
122            // We prefix everything with a default general log level and
123            // good per-module specific default. User provided RUST_LOG
124            // can override one or both
125            "{},{},{},{},{},{},{},{}",
126            self.base_level.as_deref().unwrap_or("info"),
127            "jsonrpsee_core::client::async_client=off",
128            "hyper=off",
129            "h2=off",
130            "jsonrpsee_server=warn,jsonrpsee_server::transport=off",
131            "AlephBFT-=error",
132            var,
133            self.extra_directives.as_deref().unwrap_or(""),
134        ))?;
135
136        let fmt_writer = match self.with_file.take() {
137            Some(file) => BoxMakeWriter::new(Tee::new(io::stderr, file)),
138            _ => BoxMakeWriter::new(io::stderr),
139        };
140
141        let fmt_layer = tracing_subscriber::fmt::layer()
142            .with_thread_names(false) // can be enabled for debugging
143            .with_writer(fmt_writer)
144            .with_filter(filter_layer);
145
146        let console_opt = || -> Option<Box<dyn Layer<_> + Send + Sync + 'static>> {
147            #[cfg(feature = "telemetry")]
148            if let Some(l) = self.tokio_console_bind {
149                let tracer = console_subscriber::ConsoleLayer::builder()
150                    .retention(std::time::Duration::from_secs(60))
151                    .server_addr(l)
152                    .spawn()
153                    // tokio-console cares only about these layers, so we filter separately for it
154                    .with_filter(EnvFilter::new("tokio=trace,runtime=trace"));
155                return Some(tracer.boxed());
156            }
157            None
158        };
159
160        let telemetry_layer_opt = || -> Option<Box<dyn Layer<_> + Send + Sync + 'static>> {
161            #[cfg(feature = "telemetry")]
162            if self.with_jaeger {
163                // TODO: https://github.com/fedimint/fedimint/issues/4591
164                #[allow(deprecated)]
165                let tracer = opentelemetry_jaeger::new_agent_pipeline()
166                    .with_service_name("fedimint")
167                    .install_simple()
168                    .unwrap();
169
170                return Some(tracing_opentelemetry::layer().with_tracer(tracer).boxed());
171            }
172            None
173        };
174
175        tracing_subscriber::registry()
176            .with(fmt_layer)
177            .with(console_opt())
178            .with(telemetry_layer_opt())
179            .try_init()?;
180        Ok(())
181    }
182}
183
184pub fn shutdown() {
185    #[cfg(feature = "telemetry")]
186    opentelemetry::global::shutdown_tracer_provider();
187}
fedimint_logging/lib.rs

fedimint_logging/
lib.rs
