Add metrics to web endpoint

7 files changed, 170 insertions, 86 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 2f05701f..95a81b82 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1109,6 +1109,7 @@ dependencies = [
  "garage_util 0.6.0",
  "http",
  "hyper",
+ "opentelemetry",
  "percent-encoding",
  "tracing",
 ]
diff --git a/Cargo.nix b/Cargo.nix
index 9a31fc8d..38e4828c 100644
--- a/Cargo.nix
+++ b/Cargo.nix
@@ -6,9 +6,9 @@ args@{
   rootFeatures ? [
     "garage_util/default"
     "garage_rpc/default"
+    "garage_admin/default"
     "garage_table/default"
     "garage_model/default"
-    "garage_admin/default"
     "garage_api/default"
     "garage_web/default"
     "garage/default"
@@ -46,9 +46,9 @@ in
   workspace = {
     garage_util = rustPackages.unknown.garage_util."0.6.0";
     garage_rpc = rustPackages.unknown.garage_rpc."0.6.0";
+    garage_admin = rustPackages.unknown.garage_admin."0.6.0";
     garage_table = rustPackages.unknown.garage_table."0.6.0";
     garage_model = rustPackages.unknown.garage_model."0.6.0";
-    garage_admin = rustPackages.unknown.garage_admin."0.6.0";
     garage_api = rustPackages.unknown.garage_api."0.6.0";
     garage_web = rustPackages.unknown.garage_web."0.6.0";
     garage = rustPackages.unknown.garage."0.6.0";
@@ -1041,7 +1041,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "default")
+      [ "default" ]
       [ "std" ]
     ];
     dependencies = {
@@ -1190,7 +1190,6 @@ in
     dependencies = {
       futures = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.21" { inherit profileName; };
       futures_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
-      garage_model = rustPackages."unknown".garage_model."0.6.0" { inherit profileName; };
       garage_util = rustPackages."unknown".garage_util."0.6.0" { inherit profileName; };
       hex = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hex."0.4.3" { inherit profileName; };
       http = rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.6" { inherit profileName; };
@@ -1339,6 +1338,7 @@ in
       bytes = rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; };
       futures = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.21" { inherit profileName; };
       futures_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
+      garage_admin = rustPackages."unknown".garage_admin."0.6.0" { inherit profileName; };
       garage_util = rustPackages."unknown".garage_util."0.6.0" { inherit profileName; };
       gethostname = rustPackages."registry+https://github.com/rust-lang/crates.io-index".gethostname."0.2.2" { inherit profileName; };
       hex = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hex."0.4.3" { inherit profileName; };
@@ -1452,6 +1452,7 @@ in
       k8s_openapi = rustPackages."registry+https://github.com/rust-lang/crates.io-index".k8s-openapi."0.13.1" { inherit profileName; };
       kube = rustPackages."registry+https://github.com/rust-lang/crates.io-index".kube."0.62.0" { inherit profileName; };
       netapp = rustPackages."registry+https://github.com/rust-lang/crates.io-index".netapp."0.4.0" { inherit profileName; };
+      opentelemetry = rustPackages."registry+https://github.com/rust-lang/crates.io-index".opentelemetry."0.17.0" { inherit profileName; };
       rand = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; };
       rmp_serde = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rmp-serde."0.15.5" { inherit profileName; };
       serde = rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde."1.0.136" { inherit profileName; };
@@ -1479,6 +1480,7 @@ in
       garage_util = rustPackages."unknown".garage_util."0.6.0" { inherit profileName; };
       http = rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.6" { inherit profileName; };
       hyper = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.17" { inherit profileName; };
+      opentelemetry = rustPackages."registry+https://github.com/rust-lang/crates.io-index".opentelemetry."0.17.0" { inherit profileName; };
       percent_encoding = rustPackages."registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.1.0" { inherit profileName; };
       tracing = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tracing."0.1.32" { inherit profileName; };
     };
@@ -1715,12 +1717,12 @@ in
     features = builtins.concatLists [
       [ "client" ]
       [ "default" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "full")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "h2")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "full")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "h2")
       [ "http1" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "http2")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "http2")
       (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "runtime")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_web") "server")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "server")
       [ "socket2" ]
       [ "stream" ]
       [ "tcp" ]
@@ -1730,7 +1732,7 @@ in
       futures_channel = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.21" { inherit profileName; };
       futures_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.21" { inherit profileName; };
       futures_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "h2" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".h2."0.3.12" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "h2" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".h2."0.3.12" { inherit profileName; };
       http = rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.6" { inherit profileName; };
       http_body = rustPackages."registry+https://github.com/rust-lang/crates.io-index".http-body."0.4.4" { inherit profileName; };
       httparse = rustPackages."registry+https://github.com/rust-lang/crates.io-index".httparse."1.6.0" { inherit profileName; };
@@ -1822,7 +1824,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "282a6247722caba404c065016bbfa522806e51714c34f5dfc3e4a3a46fcb4223"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "std")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "std")
     ];
     dependencies = {
       hashbrown = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hashbrown."0.11.2" { inherit profileName; };
@@ -2299,7 +2301,7 @@ in
       [ "os-poll" ]
     ];
     dependencies = {
-      ${ if hostPlatform.parsed.kernel.name == "wasi" || hostPlatform.isUnix then "libc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.119" { inherit profileName; };
+      ${ if hostPlatform.isUnix || hostPlatform.parsed.kernel.name == "wasi" then "libc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.119" { inherit profileName; };
       log = rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.14" { inherit profileName; };
       ${ if hostPlatform.isWindows then "miow" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".miow."0.3.7" { inherit profileName; };
       ${ if hostPlatform.isWindows then "ntapi" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ntapi."0.3.7" { inherit profileName; };
@@ -2532,7 +2534,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "0c7ae222234c30df141154f159066c5093ff73b63204dcda7121eb082fc56a95"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "vendored")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "vendored")
     ];
     dependencies = {
       bitflags = rustPackages."registry+https://github.com/rust-lang/crates.io-index".bitflags."1.3.2" { inherit profileName; };
@@ -2570,8 +2572,8 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "7e46109c383602735fa0a2e48dd2b7c892b048e1bf69e5c3b1d804b7d9c203cb"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "openssl-src")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "vendored")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "openssl-src")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "vendored")
     ];
     dependencies = {
       libc = rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.119" { inherit profileName; };
@@ -2579,7 +2581,7 @@ in
     buildDependencies = {
       autocfg = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".autocfg."1.1.0" { profileName = "__noProfile"; };
       cc = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".cc."1.0.73" { profileName = "__noProfile"; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "openssl_src" else null } = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".openssl-src."111.17.0+1.1.1m" { profileName = "__noProfile"; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "openssl_src" else null } = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".openssl-src."111.17.0+1.1.1m" { profileName = "__noProfile"; };
       pkg_config = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".pkg-config."0.3.24" { profileName = "__noProfile"; };
       ${ if hostPlatform.parsed.abi.name == "msvc" then "vcpkg" else null } = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".vcpkg."0.2.15" { profileName = "__noProfile"; };
     };
@@ -2591,36 +2593,36 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "6105e89802af13fdf48c49d7646d3b533a70e536d818aae7e78ba0433d01acb8"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "async-trait")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "crossbeam-channel")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "dashmap")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "default")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "fnv")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "metrics")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "percent-encoding")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "pin-project")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "rand")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "rt-tokio")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "tokio")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "tokio-stream")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "trace")
-    ];
-    dependencies = {
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "async_trait" else null } = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".async-trait."0.1.52" { profileName = "__noProfile"; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "crossbeam_channel" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".crossbeam-channel."0.5.2" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "dashmap" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".dashmap."4.0.2" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "fnv" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".fnv."1.0.7" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "futures_channel" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.21" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "futures_executor" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.21" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "futures_util" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
-      ${ if (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") && hostPlatform.parsed.cpu.name == "wasm32" then "js_sys" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".js-sys."0.3.56" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "lazy_static" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".lazy_static."1.4.0" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "percent_encoding" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.1.0" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "pin_project" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project."1.0.10" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "rand" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "thiserror" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".thiserror."1.0.30" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "tokio" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.17.0" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "tokio_stream" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio-stream."0.1.8" { inherit profileName; };
+      [ "async-trait" ]
+      [ "crossbeam-channel" ]
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "dashmap")
+      [ "default" ]
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "fnv")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "metrics")
+      [ "percent-encoding" ]
+      [ "pin-project" ]
+      [ "rand" ]
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "rt-tokio")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "tokio")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "tokio-stream")
+      [ "trace" ]
+    ];
+    dependencies = {
+      async_trait = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".async-trait."0.1.52" { profileName = "__noProfile"; };
+      crossbeam_channel = rustPackages."registry+https://github.com/rust-lang/crates.io-index".crossbeam-channel."0.5.2" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "dashmap" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".dashmap."4.0.2" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "fnv" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".fnv."1.0.7" { inherit profileName; };
+      futures_channel = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.21" { inherit profileName; };
+      futures_executor = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.21" { inherit profileName; };
+      futures_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
+      ${ if hostPlatform.parsed.cpu.name == "wasm32" then "js_sys" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".js-sys."0.3.56" { inherit profileName; };
+      lazy_static = rustPackages."registry+https://github.com/rust-lang/crates.io-index".lazy_static."1.4.0" { inherit profileName; };
+      percent_encoding = rustPackages."registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.1.0" { inherit profileName; };
+      pin_project = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project."1.0.10" { inherit profileName; };
+      rand = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; };
+      thiserror = rustPackages."registry+https://github.com/rust-lang/crates.io-index".thiserror."1.0.30" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "tokio" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.17.0" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "tokio_stream" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio-stream."0.1.8" { inherit profileName; };
     };
   });
   
@@ -3149,7 +3151,7 @@ in
       [ "getrandom" ]
       [ "libc" ]
       [ "rand_chacha" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "small_rng")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "small_rng")
       [ "std" ]
       [ "std_rng" ]
     ];
@@ -3985,8 +3987,8 @@ in
       [ "bytes" ]
       [ "default" ]
       [ "fs" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "full")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "io-std")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "full")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "io-std")
       [ "io-util" ]
       [ "libc" ]
       [ "macros" ]
@@ -3995,8 +3997,8 @@ in
       [ "net" ]
       [ "num_cpus" ]
       [ "once_cell" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "parking_lot")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "process")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "parking_lot")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "process")
       [ "rt" ]
       [ "rt-multi-thread" ]
       [ "signal" ]
@@ -4014,7 +4016,7 @@ in
       mio = rustPackages."registry+https://github.com/rust-lang/crates.io-index".mio."0.8.1" { inherit profileName; };
       num_cpus = rustPackages."registry+https://github.com/rust-lang/crates.io-index".num_cpus."1.13.1" { inherit profileName; };
       once_cell = rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.10.0" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "parking_lot" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".parking_lot."0.12.0" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "parking_lot" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".parking_lot."0.12.0" { inherit profileName; };
       pin_project_lite = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.8" { inherit profileName; };
       ${ if hostPlatform.isUnix then "signal_hook_registry" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".signal-hook-registry."1.4.0" { inherit profileName; };
       socket2 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".socket2."0.4.4" { inherit profileName; };
@@ -4076,7 +4078,7 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "50145484efff8818b5ccd256697f36863f587da82cf8b409c53adf1e840798e3"; };
     features = builtins.concatLists [
       [ "default" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "net")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "net")
       [ "time" ]
     ];
     dependencies = {
@@ -4212,24 +4214,24 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "9a89fd63ad6adf737582df5db40d286574513c69a11dac5214dc3b5603d6713e"; };
     features = builtins.concatLists [
       [ "__common" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "balance")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "balance")
       [ "buffer" ]
       [ "default" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "discover")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "discover")
       [ "futures-core" ]
       [ "futures-util" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "indexmap")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "limit")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "load")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "indexmap")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "limit")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "load")
       [ "log" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "make")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "make")
       [ "pin-project" ]
       [ "pin-project-lite" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "rand")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "ready-cache")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "rand")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "ready-cache")
       (lib.optional (rootFeatures' ? "garage") "retry")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "slab")
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "timeout")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "slab")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "timeout")
       [ "tokio" ]
       [ "tokio-util" ]
       [ "tracing" ]
@@ -4238,11 +4240,11 @@ in
     dependencies = {
       futures_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.21" { inherit profileName; };
       futures_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.21" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "indexmap" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".indexmap."1.8.0" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "indexmap" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".indexmap."1.8.0" { inherit profileName; };
       pin_project = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project."1.0.10" { inherit profileName; };
       pin_project_lite = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.8" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "rand" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; };
-      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" then "slab" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.5" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "rand" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; };
+      ${ if rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web" then "slab" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.5" { inherit profileName; };
       tokio = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.17.0" { inherit profileName; };
       tokio_util = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio-util."0.7.0" { inherit profileName; };
       tower_layer = rustPackages."registry+https://github.com/rust-lang/crates.io-index".tower-layer."0.3.1" { inherit profileName; };
@@ -4669,7 +4671,7 @@ in
       [ "std" ]
       [ "synchapi" ]
       [ "sysinfoapi" ]
-      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin") "threadpoollegacyapiset")
+      (lib.optional (rootFeatures' ? "garage" || rootFeatures' ? "garage_admin" || rootFeatures' ? "garage_api" || rootFeatures' ? "garage_model" || rootFeatures' ? "garage_rpc" || rootFeatures' ? "garage_table" || rootFeatures' ? "garage_web") "threadpoollegacyapiset")
       [ "timezoneapi" ]
       [ "winbase" ]
       [ "wincon" ]
@@ -4729,11 +4731,11 @@ in
       [ "default" ]
     ];
     dependencies = {
-      ${ if hostPlatform.config == "aarch64-pc-windows-msvc" || hostPlatform.config == "aarch64-uwp-windows-msvc" then "windows_aarch64_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_msvc."0.32.0" { inherit profileName; };
+      ${ if hostPlatform.config == "aarch64-uwp-windows-msvc" || hostPlatform.config == "aarch64-pc-windows-msvc" then "windows_aarch64_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_msvc."0.32.0" { inherit profileName; };
       ${ if hostPlatform.config == "i686-pc-windows-gnu" || hostPlatform.config == "i686-uwp-windows-gnu" then "windows_i686_gnu" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_gnu."0.32.0" { inherit profileName; };
-      ${ if hostPlatform.config == "i686-uwp-windows-msvc" || hostPlatform.config == "i686-pc-windows-msvc" then "windows_i686_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_msvc."0.32.0" { inherit profileName; };
+      ${ if hostPlatform.config == "i686-pc-windows-msvc" || hostPlatform.config == "i686-uwp-windows-msvc" then "windows_i686_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_msvc."0.32.0" { inherit profileName; };
       ${ if hostPlatform.config == "x86_64-uwp-windows-gnu" || hostPlatform.config == "x86_64-pc-windows-gnu" then "windows_x86_64_gnu" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnu."0.32.0" { inherit profileName; };
-      ${ if hostPlatform.config == "x86_64-pc-windows-msvc" || hostPlatform.config == "x86_64-uwp-windows-msvc" then "windows_x86_64_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_msvc."0.32.0" { inherit profileName; };
+      ${ if hostPlatform.config == "x86_64-uwp-windows-msvc" || hostPlatform.config == "x86_64-pc-windows-msvc" then "windows_x86_64_msvc" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_msvc."0.32.0" { inherit profileName; };
     };
   });
   
diff --git a/src/admin/tracing_setup.rs b/src/admin/tracing_setup.rs
index 83fa5622..c561d568 100644
--- a/src/admin/tracing_setup.rs
+++ b/src/admin/tracing_setup.rs
@@ -1,7 +1,7 @@
 use std::time::Duration;
 
 use opentelemetry::sdk::{
-	trace::{self, IdGenerator, Sampler},
+	trace::{self, IdGenerator},
 	Resource,
 };
 use opentelemetry::KeyValue;
@@ -24,7 +24,6 @@ pub fn init_tracing(export_to: &str, node_id: Uuid) -> Result<(), Error> {
 		.with_trace_config(
 			trace::config()
 				.with_id_generator(IdGenerator::default())
-				.with_sampler(Sampler::TraceIdRatioBased(0.01f64))
 				.with_resource(Resource::new(vec![
 					KeyValue::new("service.name", "garage"),
 					KeyValue::new("service.instance.id", node_id),
diff --git a/src/api/api_server.rs b/src/api/api_server.rs
index 8502d9d8..a6bf5a44 100644
--- a/src/api/api_server.rs
+++ b/src/api/api_server.rs
@@ -16,7 +16,7 @@ use opentelemetry::{
 
 use garage_util::data::*;
 use garage_util::error::Error as GarageError;
-use garage_util::metrics::RecordDuration;
+use garage_util::metrics::{gen_trace_id, RecordDuration};
 
 use garage_model::garage::Garage;
 use garage_model::key_table::Key;
@@ -110,16 +110,12 @@ async fn handler(
 	debug!("{:?}", req);
 
 	let tracer = opentelemetry::global::tracer("garage");
-	let trace_id = gen_uuid();
 	let span = tracer
 		.span_builder("S3 API call (unknown)")
-		.with_trace_id(
-			opentelemetry::trace::TraceId::from_hex(&hex::encode(&trace_id.as_slice()[..16]))
-				.unwrap(),
-		)
+		.with_trace_id(gen_trace_id())
 		.with_attributes(vec![
 			KeyValue::new("method", format!("{}", req.method())),
-			KeyValue::new("uri", req.uri().path().to_string()),
+			KeyValue::new("uri", req.uri().to_string()),
 		])
 		.start(&tracer);
 
@@ -177,9 +173,14 @@ async fn handler_stage2(
 	let (endpoint, bucket_name) = Endpoint::from_request(&req, bucket_name.map(ToOwned::to_owned))?;
 	debug!("Endpoint: {:?}", endpoint);
 
-	Context::current()
-		.span()
-		.update_name::<String>(format!("S3 API {}", endpoint.name()));
+	let current_context = Context::current();
+	let current_span = current_context.span();
+	current_span.update_name::<String>(format!("S3 API {}", endpoint.name()));
+	current_span.set_attribute(KeyValue::new("endpoint", endpoint.name()));
+	current_span.set_attribute(KeyValue::new(
+		"bucket",
+		bucket_name.clone().unwrap_or_default(),
+	));
 
 	let metrics_tags = &[KeyValue::new("api_endpoint", endpoint.name())];
 
diff --git a/src/util/metrics.rs b/src/util/metrics.rs
index cd5aa182..1b05eabe 100644
--- a/src/util/metrics.rs
+++ b/src/util/metrics.rs
@@ -1,8 +1,9 @@
 use std::time::SystemTime;
 
 use futures::{future::BoxFuture, Future, FutureExt};
+use rand::Rng;
 
-use opentelemetry::{metrics::*, KeyValue};
+use opentelemetry::{metrics::*, trace::TraceId, KeyValue};
 
 pub trait RecordDuration<'a>: 'a {
 	type Output;
@@ -48,3 +49,9 @@ where
 		.boxed()
 	}
 }
+
+// ----
+
+pub fn gen_trace_id() -> TraceId {
+	rand::thread_rng().gen::<[u8; 16]>().into()
+}
diff --git a/src/web/Cargo.toml b/src/web/Cargo.toml
index 269e29a5..81a8c995 100644
--- a/src/web/Cargo.toml
+++ b/src/web/Cargo.toml
@@ -27,3 +27,5 @@ futures = "0.3"
 
 http = "0.2"
 hyper = { version = "0.14", features = ["server", "http1", "runtime", "tcp", "stream"] }
+
+opentelemetry = "0.17"
diff --git a/src/web/web_server.rs b/src/web/web_server.rs
index 80d2feb9..c51347a3 100644
--- a/src/web/web_server.rs
+++ b/src/web/web_server.rs
@@ -9,6 +9,13 @@ use hyper::{
 	Body, Method, Request, Response, Server,
 };
 
+use opentelemetry::{
+	global,
+	metrics::{Counter, ValueRecorder},
+	trace::{FutureExt, TraceContextExt, Tracer},
+	Context, KeyValue,
+};
+
 use crate::error::*;
 
 use garage_api::error::{Error as ApiError, OkOrBadRequest, OkOrInternalError};
@@ -20,6 +27,33 @@ use garage_model::garage::Garage;
 
 use garage_table::*;
 use garage_util::error::Error as GarageError;
+use garage_util::metrics::{gen_trace_id, RecordDuration};
+
+struct WebMetrics {
+	request_counter: Counter<u64>,
+	error_counter: Counter<u64>,
+	request_duration: ValueRecorder<f64>,
+}
+
+impl WebMetrics {
+	fn new() -> Self {
+		let meter = global::meter("garage/web");
+		Self {
+			request_counter: meter
+				.u64_counter("web.request_counter")
+				.with_description("Number of requests to the web endpoint")
+				.init(),
+			error_counter: meter
+				.u64_counter("web.error_counter")
+				.with_description("Number of requests to the web endpoint resulting in errors")
+				.init(),
+			request_duration: meter
+				.f64_value_recorder("web.request_duration")
+				.with_description("Duration of requests to the web endpoint")
+				.init(),
+		}
+	}
+}
 
 /// Run a web server
 pub async fn run_web_server(
@@ -28,13 +62,19 @@ pub async fn run_web_server(
 ) -> Result<(), GarageError> {
 	let addr = &garage.config.s3_web.bind_addr;
 
+	let metrics = Arc::new(WebMetrics::new());
+
 	let service = make_service_fn(|conn: &AddrStream| {
 		let garage = garage.clone();
+		let metrics = metrics.clone();
+
 		let client_addr = conn.remote_addr();
 		async move {
 			Ok::<_, Error>(service_fn(move |req: Request<Body>| {
 				let garage = garage.clone();
-				handle_request(garage, req, client_addr)
+				let metrics = metrics.clone();
+
+				handle_request(garage, metrics, req, client_addr)
 			}))
 		}
 	});
@@ -49,23 +89,55 @@ pub async fn run_web_server(
 
 async fn handle_request(
 	garage: Arc<Garage>,
+	metrics: Arc<WebMetrics>,
 	req: Request<Body>,
 	addr: SocketAddr,
 ) -> Result<Response<Body>, Infallible> {
 	info!("{} {} {}", addr, req.method(), req.uri());
-	match serve_file(garage, &req).await {
+
+	// Lots of instrumentation
+	let tracer = opentelemetry::global::tracer("garage");
+	let span = tracer
+		.span_builder(format!("Web {} request", req.method()))
+		.with_trace_id(gen_trace_id())
+		.with_attributes(vec![
+			KeyValue::new("method", format!("{}", req.method())),
+			KeyValue::new("uri", req.uri().to_string()),
+		])
+		.start(&tracer);
+
+	let metrics_tags = &[KeyValue::new("method", req.method().to_string())];
+
+	// The actual handler
+	let res = serve_file(garage, &req)
+		.with_context(Context::current_with_span(span))
+		.record_duration(&metrics.request_duration, &metrics_tags[..])
+		.await;
+
+	// More instrumentation
+	metrics.request_counter.add(1, &metrics_tags[..]);
+
+	// Returning the result
+	match res {
 		Ok(res) => {
-			debug!("{} {} {}", req.method(), req.uri(), res.status());
+			debug!("{} {} {}", req.method(), res.status(), req.uri());
 			Ok(res)
 		}
 		Err(error) => {
 			info!(
 				"{} {} {} {}",
 				req.method(),
-				req.uri(),
 				error.http_status_code(),
+				req.uri(),
 				error
 			);
+			metrics.error_counter.add(
+				1,
+				&[
+					metrics_tags[0].clone(),
+					KeyValue::new("status_code", error.http_status_code().to_string()),
+				],
+			);
 			Ok(error_to_res(error))
 		}
 	}