Disable color in production

Cargo.lock

@@ -928,6 +928,15 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
+[[package]]
+name = "matchers"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8263075bb86c5a1b1427b5ae862e8889656f126e9f77c484496e8b47cf5c5558"
+dependencies = [
+ "regex-automata",
+]
+
 [[package]]
 name = "matches"
 version = "0.1.9"
@@ -1385,6 +1394,15 @@ dependencies = [
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+dependencies = [
+ "regex-syntax",
+]
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.25"
@@ -1923,9 +1941,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "245da694cc7fc4729f3f418b304cb57789f1bed2a78c575407ab8a23f53cb4d3"
 dependencies = [
  "ansi_term",
+ "lazy_static",
+ "matchers",
+ "regex",
  "sharded-slab",
  "smallvec",
  "thread_local",
+ "tracing",
  "tracing-core",
  "tracing-log",
 ]

Cargo.toml

@@ -25,7 +25,7 @@ futures = { version = "0.3", default-features = false, features = ["std"] }
 async-trait = "0.1.31"
 uuid = { version = "0.8", features = ["v4"] }
 tracing = "0.1"
-tracing-subscriber = "0.3"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 url = "2.1.0"
 once_cell = "1"
 chrono = { version = "0.4", features = ["serde"] }

src/main.rs

@@ -234,7 +234,11 @@ async fn run_server(addr: SocketAddr) -> anyhow::Result<()> {
 #[tokio::main(flavor = "current_thread")]
 async fn main() {
     dotenv::dotenv().ok();
-    tracing_subscriber::fmt::init();
+    tracing_subscriber::fmt::Subscriber::builder()
+        .with_env_filter(tracing_subscriber::EnvFilter::from_default_env())
+        .with_ansi(std::env::var_os("DISABLE_COLOR").is_none())
+        .try_init()
+        .unwrap();
 
     let port = env::var("PORT")
         .ok()