chore(agent): bump version 0.1.2 → 0.1.3

- Capture SIGTERM et SIGINT via libc::signal → AtomicBool RUNNING
- La boucle principale s'arrête proprement à la prochaine itération
- Envoi d'un paquet status:offline via UDP avant de quitter
- MQTT : publish status offline + disconnect() pour déconnexion gracieuse
  (le last_will reste actif pour les déconnexions brutales)
- payload.rs: #[serde(default)] sur version pour compatibilité descendante

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.cargo/config.toml

@@ -0,0 +1,9 @@
+[target.x86_64-unknown-linux-musl]
+linker = "musl-gcc"
+
+[target.aarch64-unknown-linux-musl]
+linker = "aarch64-linux-gnu-gcc"
+
+[env]
+CC_aarch64_unknown_linux_musl = "aarch64-linux-gnu-gcc"
+AR_aarch64_unknown_linux_musl = "aarch64-linux-gnu-ar"

.gitignore

@@ -10,4 +10,10 @@ server/*.test
 # OS
 .DS_Store
 Thumbs.db
-config.toml
+# Config locaux (contiennent des IPs/secrets)
+agent/config.toml
+server/config.toml
+
+# Sauf les configs cargo (pas de secrets)
+!.cargo/config.toml
+!agent/.cargo/config.toml

agent/.cargo/config.toml

@@ -0,0 +1,9 @@
+[target.x86_64-unknown-linux-musl]
+linker = "musl-gcc"
+
+[target.aarch64-unknown-linux-musl]
+linker = "aarch64-linux-gnu-gcc"
+
+[env]
+CC_aarch64_unknown_linux_musl = "aarch64-linux-gnu-gcc"
+AR_aarch64_unknown_linux_musl = "aarch64-linux-gnu-ar"

agent/Cargo.lock

@@ -38,9 +38,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "core-foundation"
-version = "0.10.1"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2a6cd9ae233e7f62ba4e9353e81a88df7fc8a5987b8d445b4d90c879bd156f6"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -65,7 +65,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -97,21 +97,6 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
 
-[[package]]
-name = "foreign-types"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
-dependencies = [
- "foreign-types-shared",
-]
-
-[[package]]
-name = "foreign-types-shared"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
-
 [[package]]
 name = "futures-core"
 version = "0.3.32"
@@ -142,6 +127,17 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.4.2"
@@ -247,13 +243,14 @@ checksum = "50b7e5b27aa02a74bac8c3f23f448f8d87ff11f92d3aac1a6ed369ee08cc56c1"
 dependencies = [
  "libc",
  "wasi",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "nanometrics-agent"
-version = "0.1.0"
+version = "0.1.2"
 dependencies = [
+ "libc",
  "rumqttc",
  "serde",
  "serde_json",
@@ -262,23 +259,6 @@ dependencies = [
  "toml",
 ]
 
-[[package]]
-name = "native-tls"
-version = "0.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "465500e14ea162429d264d44189adc38b199b62b1c21eea9f69e4b73cb03bbf2"
-dependencies = [
- "libc",
- "log",
- "openssl",
- "openssl-probe",
- "openssl-sys",
- "schannel",
- "security-framework",
- "security-framework-sys",
- "tempfile",
-]
-
 [[package]]
 name = "ntapi"
 version = "0.4.3"
@@ -294,48 +274,11 @@ version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
-[[package]]
-name = "openssl"
-version = "0.10.80"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a45fa2aa886c42762255da344f0a0d313e254066c46aad76f300c3d3da62d967"
-dependencies = [
- "bitflags",
- "cfg-if",
- "foreign-types",
- "libc",
- "openssl-macros",
- "openssl-sys",
-]
-
-[[package]]
-name = "openssl-macros"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "openssl-probe"
-version = "0.2.1"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c87def4c32ab89d880effc9e097653c8da5d6ef28e6b539d313baaacfbafcbe"
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
-
-[[package]]
-name = "openssl-sys"
-version = "0.9.116"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f28a22dc7140cda5f096e5e7724a6962ca81a7f8bfd2979f9b18c11af56318c4"
-dependencies = [
- "cc",
- "libc",
- "pkg-config",
- "vcpkg",
-]
 
 [[package]]
 name = "pin-project-lite"
@@ -343,12 +286,6 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a89322df9ebe1c1578d689c92318e070967d1042b512afbe49518723f4e6d5cd"
 
-[[package]]
-name = "pkg-config"
-version = "0.3.33"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e"
-
 [[package]]
 name = "prettyplease"
 version = "0.2.37"
@@ -383,6 +320,20 @@ version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
+[[package]]
+name = "ring"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom 0.2.17",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "rumqttc"
 version = "0.24.0"
@@ -393,10 +344,12 @@ dependencies = [
  "flume",
  "futures-util",
  "log",
- "native-tls",
+ "rustls-native-certs",
+ "rustls-pemfile",
+ "rustls-webpki",
  "thiserror",
  "tokio",
- "tokio-native-tls",
+ "tokio-rustls",
 ]
 
 [[package]]
@@ -409,7 +362,63 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "rustls"
+version = "0.22.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf4ef73721ac7bcd79b2b315da7779d8fc09718c6b3d2d1b2d94850eb8c18432"
+dependencies = [
+ "log",
+ "ring",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5bfb394eeed242e909609f56089eecfe5fda225042e8b171791b9c95f5931e5"
+dependencies = [
+ "openssl-probe",
+ "rustls-pemfile",
+ "rustls-pki-types",
+ "schannel",
+ "security-framework",
+]
+
+[[package]]
+name = "rustls-pemfile"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dce314e5fee3f39953d46bb63bb8a46d40c2f8fb7cc5a3b6cab2bde9721d6e50"
+dependencies = [
+ "rustls-pki-types",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30a7197ae7eb376e574fe940d068c30fe0462554a3ddbe4eca7838e049c937a9"
+dependencies = [
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-webpki"
+version = "0.102.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64ca1bc8749bd4cf37b5ce386cc146580777b4e8572c7b97baf22c83f444bee9"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
 ]
 
 [[package]]
@@ -418,7 +427,7 @@ version = "0.1.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "91c1b7e4904c873ef0710c1f407dde2e6287de2bebc1bbbf7d430bb7cbffd939"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -429,9 +438,9 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "security-framework"
-version = "3.7.0"
+version = "2.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7f4bc775c73d9a02cde8bf7b2ec4c9d12743edf609006c7facc23998404cd1d"
+checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -527,7 +536,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -539,6 +548,12 @@ dependencies = [
  "lock_api",
 ]
 
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "syn"
 version = "2.0.117"
@@ -571,10 +586,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
 dependencies = [
  "fastrand",
- "getrandom",
+ "getrandom 0.4.2",
  "once_cell",
  "rustix",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -609,7 +624,7 @@ dependencies = [
  "pin-project-lite",
  "socket2",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -624,12 +639,13 @@ dependencies = [
 ]
 
 [[package]]
-name = "tokio-native-tls"
+name = "tokio-rustls"
-version = "0.3.1"
+version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+checksum = "775e0c0f0adb3a2f22a00c4745d728b479985fc15ee7ca6a2608388c5569860f"
 dependencies = [
- "native-tls",
+ "rustls",
+ "rustls-pki-types",
  "tokio",
 ]
 
@@ -687,10 +703,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
 [[package]]
-name = "vcpkg"
+name = "untrusted"
-version = "0.2.15"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
 [[package]]
 name = "wasi"
@@ -797,6 +813,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.61.2"
@@ -973,6 +998,12 @@ dependencies = [
  "wasmparser",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b97154e67e32c85465826e8bcc1c59429aaaf107c1e4a9e53c8d8ccd5eff88d0"
+
 [[package]]
 name = "zmij"
 version = "1.0.21"

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nanometrics-agent"
-version = "0.1.0"
+version = "0.1.3"
 edition = "2021"
 
 [lib]
@@ -19,10 +19,11 @@ codegen-units = 1
 
 [dependencies]
 sysinfo = { version = "0.30", default-features = false }
+libc = "0.2"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 toml = "0.8"
-rumqttc = { version = "0.24", default-features = false, features = ["use-native-tls"] }
+rumqttc = { version = "0.24", default-features = false, features = ["use-rustls"] }
 
 [dev-dependencies]
 tempfile = "3"

agent/src/main.rs

@@ -1,7 +1,14 @@
 use nanometrics_agent::{config, metrics, payload, transport};
-use sysinfo::{Components, Disks, Networks, System};
+use sysinfo::{Components, Networks, System};
 use std::time::{Duration, Instant};
 use std::sync::mpsc;
+use std::sync::atomic::{AtomicBool, Ordering};
+
+static RUNNING: AtomicBool = AtomicBool::new(true);
+
+extern "C" fn handle_signal(_: libc::c_int) {
+    RUNNING.store(false, Ordering::Relaxed);
+}
 
 fn get_local_ip() -> String {
     use std::net::UdpSocket;
@@ -34,7 +41,6 @@ fn main() {
 
     let mut sys = System::new();
     let mut networks = Networks::new_with_refreshed_list();
-    let mut disks = Disks::new_with_refreshed_list();
     let mut components = Components::new_with_refreshed_list();
 
     let udp_sender = if cfg.protocols.udp.enabled {
@@ -50,12 +56,17 @@ fn main() {
         None
     };
 
+    unsafe {
+        libc::signal(libc::SIGTERM, handle_signal as libc::sighandler_t);
+        libc::signal(libc::SIGINT,  handle_signal as libc::sighandler_t);
+    }
+
     let mut last_slow = Instant::now();
     let mut last_medium = Instant::now();
     let mut first_medium = true;
     let mut first_slow = true;
 
-    loop {
+    while RUNNING.load(Ordering::Relaxed) {
         let now = Instant::now();
 
         while let Ok(transport::mqtt::MqttIncoming::ConfigUpdate(data)) = incoming_rx.try_recv() {
@@ -69,6 +80,7 @@ fn main() {
             hostname: hostname.clone(),
             ip: ip.clone(),
             status: "online".to_string(),
+            version: env!("CARGO_PKG_VERSION").to_string(),
             ..Default::default()
         };
 
@@ -102,9 +114,8 @@ fn main() {
         }
 
         if first_slow || now.duration_since(last_slow).as_secs() >= 60 {
-            disks.refresh();
             if cfg.metrics.disk.udp || cfg.metrics.disk.mqtt {
-                let (used, free, total) = metrics::disk::get(&disks);
+                let (used, free, total) = metrics::disk::get();
                 m.hdd_used = Some(used);
                 m.hdd_free = Some(free);
                 m.hdd_total = Some(total);
@@ -135,4 +146,24 @@ fn main() {
 
         std::thread::sleep(Duration::from_secs(2));
     }
+
+    // Déconnexion propre : notifier le serveur avant de quitter
+    let offline = serde_json::to_string(&payload::AgentMetrics {
+        hostname: hostname.clone(),
+        ip: ip.clone(),
+        status: "offline".to_string(),
+        version: env!("CARGO_PKG_VERSION").to_string(),
+        ..Default::default()
+    }).unwrap_or_default();
+
+    if let Some(ref udp) = udp_sender {
+        udp.send(&offline);
+    }
+    if let Some(ref client) = mqtt_client {
+        transport::mqtt::publish_status(
+            client, &cfg.protocols.mqtt.topic_base, &hostname, "offline",
+        );
+        std::thread::sleep(Duration::from_millis(200)); // laisser le temps au broker de recevoir
+        let _ = client.disconnect();
+    }
 }

agent/src/metrics/disk.rs

@@ -1,34 +1,36 @@
-use sysinfo::Disks;
+use std::mem::MaybeUninit;
 
-pub fn get(disks: &Disks) -> (u64, u64, u64) {
+/// Retourne (used, free, total) en octets pour le système de fichiers racine "/".
-    for disk in disks.list() {
+/// Utilise statvfs() directement pour correspondre exactement aux chiffres de `df` :
-        let mount = disk.mount_point().to_string_lossy();
+///   - total = f_blocks × f_frsize
-        if mount == "/" {
+///   - used  = (f_blocks − f_bfree) × f_frsize   (blocs effectivement écrits)
-            let total = disk.total_space();
+///   - free  = f_bavail × f_frsize                (disponible pour utilisateurs non-root)
-            let free = disk.available_space();
+pub fn get() -> (u64, u64, u64) {
-            let used = total.saturating_sub(free);
+    let path = b"/\0";
-            return (used, free, total);
+    let mut stat = MaybeUninit::<libc::statvfs>::uninit();
-        }
+    let ret = unsafe { libc::statvfs(path.as_ptr() as *const libc::c_char, stat.as_mut_ptr()) };
+    if ret != 0 {
+        return (0, 0, 0);
     }
-    if let Some(disk) = disks.list().first() {
+    let stat = unsafe { stat.assume_init() };
-        let total = disk.total_space();
+    let bsize = stat.f_frsize as u64;
-        let free = disk.available_space();
+    let total = stat.f_blocks.saturating_mul(bsize);
-        return (total.saturating_sub(free), free, total);
+    let used  = stat.f_blocks.saturating_sub(stat.f_bfree).saturating_mul(bsize);
-    }
+    let free  = stat.f_bavail.saturating_mul(bsize);
-    (0, 0, 0)
+    (used, free, total)
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
-    use sysinfo::Disks;
 
     #[test]
     fn test_disk_coherent() {
-        let disks = Disks::new_with_refreshed_list();
+        let (used, free, total) = get();
-        let (used, free, total) = get(&disks);
+        eprintln!("résultat statvfs : used={used} free={free} total={total}");
         if total > 0 {
-            assert!(used + free <= total + 1024, "used + free > total");
+            assert!(used + free <= total + 1024 * 1024, "used + free > total");
+            assert!(total > 0, "total doit être > 0");
         }
     }
 }

agent/src/payload.rs

@@ -5,6 +5,8 @@ pub struct AgentMetrics {
     pub hostname: String,
     pub ip: String,
     pub status: String,
+    #[serde(default)]
+    pub version: String,
     pub cpu_percent: Option<f32>,
     pub memory_used: Option<u64>,
     pub memory_free: Option<u64>,

agent/src/transport/mqtt.rs

@@ -78,3 +78,8 @@ pub fn publish_metrics(client: &Client, topic_base: &str, hostname: &str, json:
     let topic = format!("{}/{}/metrics", topic_base, hostname);
     let _ = client.publish(topic, QoS::AtMostOnce, false, json);
 }
+
+pub fn publish_status(client: &Client, topic_base: &str, hostname: &str, status: &str) {
+    let topic = format!("{}/{}/status", topic_base, hostname);
+    let _ = client.publish(topic, QoS::AtLeastOnce, true, status);
+}

agent/tests/payload_test.rs

@@ -18,6 +18,7 @@ fn test_serialize_json_complet() {
         temperature: None,
         smart: None,
         status: "online".to_string(),
+        version: "0.0.0".to_string(),
     };
     let json = serde_json::to_string(&m).unwrap();
     assert!(json.contains("\"hostname\":\"srv-01\""));

dashboard/css/app.css

@@ -115,9 +115,15 @@ body{background:var(--bg-1);color:var(--ink-1);font-family:var(--font-ui);font-s
 .g-bar{flex:1;height:5px;border-radius:3px;background:var(--bg-1);overflow:hidden}
 .g-fill{height:100%;border-radius:3px;background:var(--ok);transition:width .3s}
 .g-fill.w{background:var(--warn)}.g-fill.e{background:var(--err)}
-.g-val{font-family:var(--font-mono);font-size:11px;color:var(--ink-2);width:34px;text-align:right}
+.g-val{font-family:var(--font-mono);font-size:11px;color:var(--ink-2);
+       min-width:34px;white-space:nowrap;flex-shrink:0;text-align:right}
 .tile-foot{font-family:var(--font-terminal);font-size:10px;color:var(--ink-4);
-           display:flex;align-items:center;gap:5px;user-select:none}
+           display:flex;align-items:center;justify-content:space-between;user-select:none}
+.tile-foot-info{display:flex;align-items:center;gap:5px;min-width:0;overflow:hidden}
+.btn-del-agent{border:none;background:transparent;cursor:pointer;flex-shrink:0;
+               color:var(--ink-5);font-size:11px;padding:2px 4px;border-radius:4px;
+               line-height:1;transition:color .15s,background .15s;user-select:none}
+.btn-del-agent:hover{color:var(--err);background:color-mix(in srgb,var(--err) 12%,transparent)}
 
 /* FOOTER */
 .footer{background:var(--bg-0);border-top:1px solid var(--border-2);height:26px;

dashboard/favicon/favicon.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64">
+  <!-- Fond arrondi -->
+  <rect width="64" height="64" rx="14" fill="#282828"/>
+  <!-- Cercle accent -->
+  <circle cx="32" cy="32" r="22" fill="none" stroke="#fe8019" stroke-width="4"/>
+  <!-- Barre CPU style jauge -->
+  <rect x="18" y="28" width="28" height="4" rx="2" fill="#504945"/>
+  <rect x="18" y="28" width="18" height="4" rx="2" fill="#fe8019"/>
+  <!-- Point LED vert -->
+  <circle cx="43" cy="21" r="4" fill="#b8bb26"/>
+</svg>

dashboard/favicon/site.webmanifest

@@ -0,0 +1,13 @@
+{
+  "name": "Nanometrics",
+  "short_name": "Nanometrics",
+  "description": "Tableau de bord de surveillance système",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#282828",
+  "theme_color": "#fe8019",
+  "icons": [
+    { "src": "favicon-192.png", "sizes": "192x192", "type": "image/png" },
+    { "src": "favicon-512.png", "sizes": "512x512", "type": "image/png" }
+  ]
+}

dashboard/index.html

@@ -4,6 +4,13 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Nanometrics</title>
+<link rel="icon" type="image/x-icon" href="favicon/favicon.ico">
+<link rel="icon" type="image/svg+xml" href="favicon/favicon.svg">
+<link rel="icon" type="image/png" sizes="32x32" href="favicon/favicon-32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="favicon/favicon-16.png">
+<link rel="apple-touch-icon" sizes="180x180" href="favicon/favicon-180.png">
+<link rel="manifest" href="favicon/site.webmanifest">
+<meta name="theme-color" content="#282828">
 <link rel="stylesheet" href="vendor/fontawesome/css/all.min.css">
 <link rel="stylesheet" href="css/app.css">
 </head>
@@ -66,12 +73,12 @@
         <img id="pop-icon-img" src="" alt="" style="display:none">
         <div class="agent-icon-overlay"><i class="fa-solid fa-camera"></i><span>Changer</span></div>
       </div>
-      <input type="file" id="icon-upload" accept=".svg,.jpg,.jpeg,.png,.webp" style="display:none">
+      <input type="file" id="icon-upload" accept=".jpg,.jpeg,.png,.webp" style="display:none">
       <div style="flex:1">
         <div class="pop-host" id="pop-host">—</div>
         <div class="pop-ip" id="pop-ip">—</div>
-        <div style="font-size:10px;color:var(--ink-4);font-family:var(--font-terminal);margin-top:2px">
+        <div id="icon-hint" style="font-size:10px;color:var(--ink-4);font-family:var(--font-terminal);margin-top:2px">
-          Cliquer sur l'icône pour personnaliser · SVG JPG PNG WEBP · max 128×128 px
+          Cliquer sur l'icône pour personnaliser · JPG PNG WEBP · max 128×128 px
         </div>
       </div>
       <div class="pop-led" id="pop-led"></div>
@@ -147,6 +154,29 @@
   </div>
 </div>
 
+<!-- DIALOG SUPPRESSION AGENT -->
+<div class="overlay" id="overlay-del" style="display:none;z-index:400" onclick="if(event.target===this)this.style.display='none'">
+  <div class="popup" style="width:360px;max-width:96vw" onclick="event.stopPropagation()">
+    <div style="padding:20px 20px 0">
+      <div style="display:flex;align-items:center;gap:12px;margin-bottom:14px">
+        <div style="width:36px;height:36px;border-radius:8px;background:color-mix(in srgb,var(--err) 15%,transparent);display:flex;align-items:center;justify-content:center;color:var(--err);font-size:16px;flex-shrink:0"><i class="fa-solid fa-triangle-exclamation"></i></div>
+        <div>
+          <div style="font-weight:700;font-size:14px">Supprimer l'agent</div>
+          <div style="font-size:12px;color:var(--fg2);margin-top:2px">Cette action est irréversible</div>
+        </div>
+      </div>
+      <p style="font-size:13px;margin:0 0 8px">Supprimer <strong id="del-agent-name">—</strong> ?<br>
+        <span style="font-size:11px;color:var(--fg2)">Toutes les métriques historiques seront effacées.</span></p>
+    </div>
+    <div style="padding:16px 20px;display:flex;justify-content:flex-end;gap:8px">
+      <button class="btn" onclick="document.getElementById('overlay-del').style.display='none'">Annuler</button>
+      <button class="btn" id="del-agent-confirm"
+        style="background:var(--err);color:#fff;border-color:var(--err)"
+        onclick="Popups.doDeleteAgent()"><i class="fa-solid fa-trash"></i> Supprimer</button>
+    </div>
+  </div>
+</div>
+
 <script src="js/api.js"></script>
 <script src="js/charts.js"></script>
 <script src="js/grid.js"></script>

dashboard/js/api.js

@@ -27,6 +27,11 @@ const API = (() => {
         if (!r.ok) throw new Error(`PUT ${path}: ${r.status}`);
     }
 
+    async function del(path) {
+        const r = await fetch(BASE + path, { method: 'DELETE' });
+        if (!r.ok) throw new Error(`DELETE ${path}: ${r.status}`);
+    }
+
     async function postForm(path, formData) {
         const r = await fetch(BASE + path, { method: 'POST', body: formData });
         if (!r.ok) throw new Error(`POST ${path}: ${r.status}`);
@@ -44,6 +49,7 @@ const API = (() => {
             fd.append('icon', file);
             return postForm(`/api/agents/${id}/icon`, fd);
         },
+        deleteAgent:      (id) => del(`/api/agents/${id}`),
         iconUrl:          (id) => `/api/agents/${id}/icon`,
     };
 })();

dashboard/js/grid.js

@@ -58,7 +58,7 @@ const Grid = (() => {
         const iconContent = `<img src="${API.iconUrl(id)}" alt=""
             style="width:100%;height:100%;object-fit:cover;border-radius:7px"
             onerror="this.style.display='none';this.nextSibling.style.display='flex'">
-            <span style="display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--accent)">
+            <span style="display:none;align-items:center;justify-content:center;width:100%;height:100%;color:var(--accent)">
               <i class="fa-solid fa-server"></i></span>`;
 
         return `<div class="tile ${sc}" id="tile-${id}" onclick="Popups.showDetail('${esc(id)}')">
@@ -81,19 +81,25 @@ const Grid = (() => {
               <div class="g-ico" data-tip="RAM"><i class="fa-solid fa-memory"></i></div>
               <div class="g-bar"><div class="g-fill ${offline ? '' : gFill(memPct ?? 0)}"
                 style="width:${offline ? 0 : (memPct ?? 0).toFixed(0)}%"></div></div>
-              <span class="g-val">${offline ? '—' : fmtPct(memPct)}</span>
+              <span class="g-val">${offline ? '—' : (metrics?.memory_used && metrics?.memory_total ? fmt(metrics.memory_used) + '/' + fmt(metrics.memory_total) : '—')}</span>
             </div>
             <div class="g-row">
               <div class="g-ico" data-tip="Disque"><i class="fa-solid fa-hard-drive"></i></div>
               <div class="g-bar"><div class="g-fill ${offline ? '' : (diskPct >= (App.serverConfig?.warn_disk ?? 75) ? 'w' : '')}"
                 style="width:${offline ? 0 : (diskPct ?? 0).toFixed(0)}%"></div></div>
-              <span class="g-val">${offline ? '—' : fmtPct(diskPct)}</span>
+              <span class="g-val">${offline ? '—' : (metrics?.hdd_used && metrics?.hdd_total ? fmt(metrics.hdd_used) + '/' + fmt(metrics.hdd_total) : '—')}</span>
             </div>
           </div>
           <div class="tile-foot">
-            ${offline
+            <span class="tile-foot-info">
+              ${offline
                 ? '<i class="fa-solid fa-circle-xmark" style="color:var(--err)"></i><span style="color:var(--err)">Hors ligne</span>'
-                : `<i class="fa-solid fa-clock"></i><span>${uptimeStr}</span>`}
+                : `<i class="fa-solid fa-clock"></i><span>${uptimeStr || '—'}</span>`}
+            </span>
+            <button class="btn-del-agent" title="Supprimer cet agent"
+              onclick="event.stopPropagation();Popups.confirmDeleteAgent('${esc(id)}','${esc(agent.hostname)}')">
+              <i class="fa-solid fa-trash"></i>
+            </button>
           </div>
         </div>`;
     }
@@ -101,6 +107,12 @@ const Grid = (() => {
     function update(agentId, metrics) {
         const entry = _agents.get(agentId);
         if (!entry) return;
+        // Conserver les valeurs lentes (disque, smart) quand le paquet ne les contient pas
+        if (entry.metrics) {
+            for (const k of Object.keys(entry.metrics)) {
+                if (metrics[k] == null && entry.metrics[k] != null) metrics[k] = entry.metrics[k];
+            }
+        }
         entry.metrics = metrics;
         const el = document.getElementById('tile-' + agentId);
         if (el) {
@@ -112,7 +124,7 @@ const Grid = (() => {
     function refresh(agents) {
         agents.forEach(a => {
             if (!_agents.has(a.id)) {
-                _agents.set(a.id, { agent: a, metrics: null });
+                _agents.set(a.id, { agent: a, metrics: a.last_metrics || null });
             } else {
                 _agents.get(a.id).agent = a;
             }
@@ -139,6 +151,13 @@ const Grid = (() => {
         document.getElementById('stat-err').textContent = err;
     }
 
+    function removeAgent(id) {
+        _agents.delete(id);
+        const el = document.getElementById('tile-' + id);
+        if (el) el.remove();
+        updateStats();
+    }
+
     function getAgent(id) { return _agents.get(id); }
 
     function updateStatus(agentId, status) {
@@ -150,5 +169,5 @@ const Grid = (() => {
         updateStats();
     }
 
-    return { refresh, update, updateStatus, getAgent, fmt, fmtPct };
+    return { refresh, update, updateStatus, removeAgent, getAgent, fmt, fmtPct };
 })();

dashboard/js/popups.js

@@ -30,8 +30,27 @@ const Popups = (() => {
         document.getElementById('icon-upload').onchange = async (e) => {
             const file = e.target.files[0];
             if (!file) return;
-            await API.uploadIcon(agentId, file);
+            const hint = document.getElementById('icon-hint');
-            img.src = API.iconUrl(agentId) + '?t=' + Date.now();
+            try {
+                await API.uploadIcon(agentId, file);
+                const ts = '?t=' + Date.now();
+                img.src = API.iconUrl(agentId) + ts;
+                img.style.display = 'block';
+                document.getElementById('pop-icon-fa').style.display = 'none';
+                const tileImg = document.querySelector(`#tile-${CSS.escape(agentId)} .t-icon img`);
+                if (tileImg) tileImg.src = API.iconUrl(agentId) + ts;
+            } catch (err) {
+                if (hint) {
+                    hint.style.color = 'var(--err)';
+                    hint.textContent = 'Erreur : ' + (err.message || 'téléversement échoué');
+                    setTimeout(() => {
+                        hint.style.color = '';
+                        hint.textContent = 'Cliquer sur l\'icône pour personnaliser · JPG PNG WEBP · max 128×128 px';
+                    }, 4000);
+                }
+            } finally {
+                e.target.value = '';
+            }
         };
 
         // Uptime
@@ -119,6 +138,9 @@ const Popups = (() => {
             <div class="meta-grid">
               <div class="meta"><div class="meta-lbl">HOSTNAME</div><div class="meta-val">${esc(agent.hostname)}</div></div>
               <div class="meta"><div class="meta-lbl">ADRESSE IP</div><div class="meta-val">${esc(agent.ip) || '—'}</div></div>
+              <div class="meta"><div class="meta-lbl">VERSION AGENT</div><div class="meta-val" style="display:flex;align-items:center;gap:6px">
+                ${agent.version ? `<span style="font-family:var(--font-mono);background:var(--bg-1);border:1px solid var(--border-2);border-radius:5px;padding:1px 7px;font-size:11px;color:var(--accent)">v${esc(agent.version)}</span>` : '<span style="color:var(--ink-4)">—</span>'}
+              </div></div>
               <div class="meta"><div class="meta-lbl">PROTOCOLES ACTIFS</div><div style="display:flex;gap:5px;margin-top:4px">${protos || '—'}</div></div>
               <div class="meta"><div class="meta-lbl">DERNIER CONTACT</div><div class="meta-val">${new Date(agent.last_seen * 1000).toLocaleTimeString('fr-FR')}</div></div>
             </div>
@@ -305,6 +327,21 @@ const Popups = (() => {
                 ${[[15,'15 min'],[30,'30 min'],[60,'1 heure'],[360,'6 heures']].map(([v,l]) =>
                   `<option value="${v}" ${(cfg.chart_duration_min??30)==v?'selected':''}>${l}</option>`).join('')}
               </select></div>
+          </div>
+          <div style="display:flex;flex-direction:column;gap:8px">
+            <div class="scfg-sec-title">INSTALLATION AGENT</div>
+            <div class="scfg-row" style="flex-direction:column;align-items:stretch;gap:6px">
+              <label style="font-size:0.85em;color:var(--fg2)">Commande curl — copiez et lancez en root sur la machine cible</label>
+              <div style="display:flex;gap:6px;align-items:center">
+                <input type="text" id="s-install-cmd" readonly
+                  style="flex:1;font-family:var(--font-mono);font-size:0.78em;padding:6px 8px;
+                         background:var(--bg2);border:1px solid var(--border);border-radius:6px;
+                         color:var(--fg);cursor:text;min-width:0"
+                  value="SERVER_IP=${window.location.hostname} curl -fsSL https://git.maison43gil.com/gilles/nano_metrics/raw/branch/main/deploy/install.sh | sudo bash">
+                <button class="btn" style="padding:5px 10px;font-size:0.8em;white-space:nowrap"
+                  onclick="navigator.clipboard.writeText(document.getElementById('s-install-cmd').value).then(()=>{this.textContent='✓ Copié';setTimeout(()=>this.textContent='Copier',1500)})">Copier</button>
+              </div>
+            </div>
           </div>`;
         document.getElementById('overlay-srvcfg').style.display = 'flex';
     }
@@ -391,10 +428,32 @@ const Popups = (() => {
         document.getElementById('overlay-smart').style.display = 'flex';
     }
 
+    // ══ SUPPRESSION AGENT ══
+    let _delAgentId = null;
+
+    function confirmDeleteAgent(id, hostname) {
+        _delAgentId = id;
+        document.getElementById('del-agent-name').textContent = hostname || id;
+        document.getElementById('overlay-del').style.display = 'flex';
+    }
+
+    async function doDeleteAgent() {
+        if (!_delAgentId) return;
+        const id = _delAgentId;
+        document.getElementById('overlay-del').style.display = 'none';
+        _delAgentId = null;
+        try {
+            await API.deleteAgent(id);
+            Grid.removeAgent(id);
+        } catch (e) {
+            alert('Erreur lors de la suppression : ' + e.message);
+        }
+    }
+
     return {
         showDetail, hideDetail,
         showAgentCfg, sendAgentConfig, toggleCbox,
-        showSrvCfg, hideSrvCfg, saveSrvCfg,
+        showSrvCfg, hideSrvCfg, saveSrvCfg, confirmDeleteAgent, doDeleteAgent,
         showSmart,
     };
 })();

deploy/install.sh

@@ -82,22 +82,23 @@ ok "Binaire téléchargé ($(du -sh "$TMP_BIN" | cut -f1))"
 echo ""
 echo "--- Configuration du serveur ---"
 
-if [ -z "${SERVER_IP:-}" ]; then
+SERVER_IP="${SERVER_IP:-10.0.0.50}"
-    read -rp "Adresse IP du serveur Nanometrics : " SERVER_IP
-fi
-if [ -z "${SERVER_IP:-}" ]; then
-    err "SERVER_IP est requis."
-    exit 1
-fi
-
 SERVER_PORT="${SERVER_PORT:-9999}"
+MQTT_HOST="${MQTT_HOST:-10.0.0.3}"
 MQTT_ENABLED="${MQTT_ENABLED:-false}"
 
-ok "Serveur : $SERVER_IP:$SERVER_PORT"
+ok "Serveur : $SERVER_IP:$SERVER_PORT  |  MQTT broker : $MQTT_HOST"
 
 # ── 5. Installer le binaire ────────────────────────────────────────────────────
 echo ""
 echo "[1/5] Installation du binaire dans /usr/local/bin/"
+
+# Arrêter le service si en cours (le binaire ne peut pas être écrasé à chaud)
+if systemctl is-active --quiet nanometrics-agent 2>/dev/null; then
+    warn "Service en cours — arrêt temporaire..."
+    systemctl stop nanometrics-agent
+fi
+
 cp "$TMP_BIN" "$INSTALL_BIN"
 chmod 755 "$INSTALL_BIN"
 ok "Binaire installé"
@@ -111,10 +112,33 @@ ok "Répertoire créé"
 # ── 7. Écrire config.toml ─────────────────────────────────────────────────────
 echo "[3/5] Écriture de $CONFIG_FILE"
 
-# Ne pas écraser une config existante (upgrade)
+OVERWRITE_CONFIG="${OVERWRITE_CONFIG:-}"
+WRITE_CONFIG=true
+
 if [ -f "$CONFIG_FILE" ]; then
-    warn "config.toml déjà présent — conservé tel quel"
+    if [ "${OVERWRITE_CONFIG}" = "true" ]; then
-else
+        warn "OVERWRITE_CONFIG=true — config.toml sera écrasé"
+        WRITE_CONFIG=true
+    elif [ -t 0 ]; then
+        # Mode interactif (bash local, pas curl | bash)
+        echo ""
+        warn "Un config.toml existe déjà :"
+        echo "    $CONFIG_FILE"
+        printf "  Écraser la configuration existante ? [o/N] : "
+        read -r _ANS
+        if [[ "$_ANS" =~ ^[Oo]$ ]]; then
+            WRITE_CONFIG=true
+        else
+            ok "config.toml conservé"
+            WRITE_CONFIG=false
+        fi
+    else
+        warn "config.toml déjà présent — conservé (relancez avec OVERWRITE_CONFIG=true pour écraser)"
+        WRITE_CONFIG=false
+    fi
+fi
+
+if [ "$WRITE_CONFIG" = "true" ]; then
 cat > "$CONFIG_FILE" << TOML
 [server]
 ip = "$SERVER_IP"
@@ -125,7 +149,7 @@ enabled = true
 
 [protocols.mqtt]
 enabled = $MQTT_ENABLED
-host = "10.0.0.3"
+host = "$MQTT_HOST"
 port = 1883
 topic_base = "nanometrics/agents"
 auto_discovery = true
@@ -160,10 +184,14 @@ mqtt = false
 udp = true
 mqtt = false
 TOML
-    chmod 640 "$CONFIG_FILE"
+    chmod 644 "$CONFIG_FILE"
     ok "config.toml créé"
 fi
 
+# S'assurer que le fichier est toujours lisible (cas d'un config existant en 640)
+chmod 644 "$CONFIG_FILE" 2>/dev/null || true
+chmod 755 "$CONFIG_DIR"
+
 # ── 8. Installer le fichier service ──────────────────────────────────────────
 echo "[4/5] Installation du service systemd"
 curl -fsSL -o "$SERVICE_FILE" "$SERVICE_URL"

deploy/nanometrics-agent.service

@@ -11,7 +11,7 @@ RestartSec=5
 
 DynamicUser=yes
 ConfigurationDirectory=nanometrics
-ConfigurationDirectoryMode=0750
+ConfigurationDirectoryMode=0755
 
 ProtectSystem=strict
 ProtectHome=read-only

deploy/release.sh

@@ -25,7 +25,9 @@ DESCRIPTION="${2:-Release $TAG}"
 ROOT="$(cd "$(dirname "$0")/.." && pwd)"
 CARGO_TOML="$ROOT/agent/Cargo.toml"
 
-# ── 1. Compiler pour toutes les cibles supportées ──────────────────────────
+mkdir -p "$ROOT/dist"
+
+# ── 1. Compiler l'agent pour toutes les cibles supportées ────────────────
 echo "=== Compilation de l'agent ==="
 TARGETS=("x86_64-unknown-linux-musl" "aarch64-unknown-linux-musl")
 LABELS=("linux-amd64" "linux-arm64")
@@ -40,7 +42,9 @@ for i in "${!TARGETS[@]}"; do
     # Installer la cible si absente
     rustup target add "$TARGET" 2>/dev/null || true
 
-    # Compiler
+    # Compiler (CC requis par la crate ring pour les cibles musl cross)
+    CC_aarch64_unknown_linux_musl=aarch64-linux-gnu-gcc \
+    AR_aarch64_unknown_linux_musl=aarch64-linux-gnu-ar \
     cargo build --release \
         --manifest-path "$CARGO_TOML" \
         --target "$TARGET" \

server/Dockerfile

@@ -5,10 +5,9 @@ RUN go mod download
 COPY . .
 RUN CGO_ENABLED=0 go build -ldflags="-s -w" -o nanometrics-server .
 
-FROM alpine:3.19
+FROM scratch
-RUN apk add --no-cache ca-certificates
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-WORKDIR /app
+COPY --from=builder /app/nanometrics-server /nanometrics-server
-COPY --from=builder /app/nanometrics-server .
 VOLUME /data
 EXPOSE 8080 9999/udp
-CMD ["./nanometrics-server"]
+CMD ["/nanometrics-server"]

server/db/db.go

@@ -20,7 +20,7 @@ const schema = `
 CREATE TABLE IF NOT EXISTS agents (
 	id TEXT PRIMARY KEY, hostname TEXT NOT NULL,
 	ip TEXT NOT NULL DEFAULT '', status TEXT NOT NULL DEFAULT 'offline',
-	last_seen INTEGER NOT NULL DEFAULT 0
+	last_seen INTEGER NOT NULL DEFAULT 0, version TEXT NOT NULL DEFAULT ''
 );
 CREATE TABLE IF NOT EXISTS metrics (
 	id INTEGER PRIMARY KEY AUTOINCREMENT, agent_id TEXT NOT NULL, ts INTEGER NOT NULL,
@@ -57,8 +57,12 @@ func Open(path string) (*DB, error) {
 }
 
 func (d *DB) migrate() error {
-	_, err := d.conn.Exec(schema)
+	if _, err := d.conn.Exec(schema); err != nil {
-	return err
+		return err
+	}
+	// Migrations additives pour les colonnes ajoutées après la création initiale
+	_, _ = d.conn.Exec(`ALTER TABLE agents ADD COLUMN version TEXT NOT NULL DEFAULT ''`)
+	return nil
 }
 
 func (d *DB) Close() { _ = d.conn.Close() }
@@ -66,11 +70,12 @@ func (d *DB) Close() { _ = d.conn.Close() }
 func (d *DB) UpsertAgent(m *models.AgentMetrics) error {
 	ts := time.Now().Unix()
 	_, err := d.conn.Exec(`
-		INSERT INTO agents (id, hostname, ip, status, last_seen)
+		INSERT INTO agents (id, hostname, ip, status, last_seen, version)
-		VALUES (?, ?, ?, ?, ?)
+		VALUES (?, ?, ?, ?, ?, ?)
 		ON CONFLICT(id) DO UPDATE SET
-			ip=excluded.ip, status=excluded.status, last_seen=excluded.last_seen`,
+			ip=excluded.ip, status=excluded.status, last_seen=excluded.last_seen,
-		m.Hostname, m.Hostname, m.IP, m.Status, ts)
+			version=CASE WHEN excluded.version != '' THEN excluded.version ELSE version END`,
+		m.Hostname, m.Hostname, m.IP, m.Status, ts, m.Version)
 	return err
 }
 
@@ -104,7 +109,7 @@ func (d *DB) InsertMetrics(m *models.AgentMetrics) error {
 }
 
 func (d *DB) GetAgents() ([]models.Agent, error) {
-	rows, err := d.conn.Query(`SELECT id, hostname, ip, status, last_seen FROM agents`)
+	rows, err := d.conn.Query(`SELECT id, hostname, ip, status, last_seen, version FROM agents`)
 	if err != nil {
 		return nil, err
 	}
@@ -112,7 +117,7 @@ func (d *DB) GetAgents() ([]models.Agent, error) {
 	var agents []models.Agent
 	for rows.Next() {
 		var a models.Agent
-		if err := rows.Scan(&a.ID, &a.Hostname, &a.IP, &a.Status, &a.LastSeen); err != nil {
+		if err := rows.Scan(&a.ID, &a.Hostname, &a.IP, &a.Status, &a.LastSeen, &a.Version); err != nil {
 			return nil, err
 		}
 		agents = append(agents, a)
@@ -123,6 +128,72 @@ func (d *DB) GetAgents() ([]models.Agent, error) {
 	return agents, nil
 }
 
+func (d *DB) GetLastMetrics(agentID string) (*models.AgentMetrics, error) {
+	var cpu, temperature *float64
+	var memUsed, memFree, memTotal, hddUsed, hddFree, hddTotal *int64
+	var uptime, netRX, netTX *int64
+	var smartPassed, smartTemp, smartRealloc, smartHours, smartWear *int64
+
+	// Chaque sous-requête prend la dernière valeur NON NULL de sa colonne.
+	// Nécessaire car les paquets rapides (2s) ne contiennent pas les métriques
+	// lentes (disque, smart) qui sont envoyées toutes les 60s.
+	err := d.conn.QueryRow(`
+		SELECT
+		  (SELECT cpu_percent  FROM metrics WHERE agent_id=? AND cpu_percent  IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT memory_used  FROM metrics WHERE agent_id=? AND memory_used  IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT memory_free  FROM metrics WHERE agent_id=? AND memory_free  IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT memory_total FROM metrics WHERE agent_id=? AND memory_total IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT hdd_used     FROM metrics WHERE agent_id=? AND hdd_used     IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT hdd_free     FROM metrics WHERE agent_id=? AND hdd_free     IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT hdd_total    FROM metrics WHERE agent_id=? AND hdd_total    IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT uptime       FROM metrics WHERE agent_id=? AND uptime       IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT network_rx   FROM metrics WHERE agent_id=? AND network_rx   IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT network_tx   FROM metrics WHERE agent_id=? AND network_tx   IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT temperature  FROM metrics WHERE agent_id=? AND temperature  IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT smart_passed FROM metrics WHERE agent_id=? AND smart_passed IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT smart_temp   FROM metrics WHERE agent_id=? AND smart_passed IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT smart_realloc FROM metrics WHERE agent_id=? AND smart_passed IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT smart_hours  FROM metrics WHERE agent_id=? AND smart_passed IS NOT NULL ORDER BY ts DESC LIMIT 1),
+		  (SELECT smart_wear   FROM metrics WHERE agent_id=? AND smart_passed IS NOT NULL ORDER BY ts DESC LIMIT 1)`,
+		agentID, agentID, agentID, agentID,
+		agentID, agentID, agentID,
+		agentID, agentID, agentID, agentID,
+		agentID, agentID, agentID, agentID, agentID).
+		Scan(&cpu, &memUsed, &memFree, &memTotal,
+			&hddUsed, &hddFree, &hddTotal,
+			&uptime, &netRX, &netTX, &temperature,
+			&smartPassed, &smartTemp, &smartRealloc, &smartHours, &smartWear)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	m := &models.AgentMetrics{
+		CPUPercent:  cpu,
+		MemoryUsed:  memUsed,
+		MemoryFree:  memFree,
+		MemoryTotal: memTotal,
+		HDDUsed:     hddUsed,
+		HDDFree:     hddFree,
+		HDDTotal:    hddTotal,
+		Uptime:      uptime,
+		NetworkRX:   netRX,
+		NetworkTX:   netTX,
+		Temperature: temperature,
+	}
+	if smartPassed != nil {
+		m.Smart = &models.SmartMetrics{
+			Passed:             *smartPassed == 1,
+			Temperature:        smartTemp,
+			ReallocatedSectors: smartRealloc,
+			PowerOnHours:       smartHours,
+			WearLevel:          smartWear,
+		}
+	}
+	return m, nil
+}
+
 func (d *DB) GetMetricsHistory(agentID string, from, to int64) ([]map[string]interface{}, error) {
 	rows, err := d.conn.Query(`
 		SELECT ts, cpu_percent, memory_used, memory_total, hdd_used, hdd_total
@@ -238,6 +309,20 @@ func (d *DB) MarkOffline(timeoutSec int64) error {
 	return err
 }
 
+func (d *DB) DeleteAgent(agentID string) error {
+	for _, q := range []string{
+		`DELETE FROM metrics WHERE agent_id = ?`,
+		`DELETE FROM agent_configs WHERE agent_id = ?`,
+		`DELETE FROM agent_icons WHERE agent_id = ?`,
+		`DELETE FROM agents WHERE id = ?`,
+	} {
+		if _, err := d.conn.Exec(q, agentID); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
 // MarkOfflineAndGetIDs marque les agents inactifs et retourne leurs IDs.
 func (d *DB) MarkOfflineAndGetIDs(timeoutSec int64) ([]string, error) {
 	cutoff := time.Now().Unix() - timeoutSec

server/docker-compose.yml

@@ -1,7 +1,8 @@
-version: '3.8'
 services:
   server:
-    build: .
+    build:
+      context: .
+      pull: false
     restart: unless-stopped
     environment:
       UDP_ADDR: "0.0.0.0:9999"
@@ -16,6 +17,7 @@ services:
 
   dashboard:
     image: nginx:alpine
+    pull_policy: if_not_present
     restart: unless-stopped
     volumes:
       - ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro

server/handlers/agents.go

@@ -3,6 +3,7 @@ package handlers
 import (
 	"encoding/json"
 	"net/http"
+	"strings"
 
 	"github.com/user/nanometrics/server/db"
 )
@@ -14,7 +15,26 @@ func AgentsHandler(database *db.DB) http.HandlerFunc {
 			http.Error(w, err.Error(), 500)
 			return
 		}
+		for i := range agents {
+			agents[i].LastMetrics, _ = database.GetLastMetrics(agents[i].ID)
+		}
 		w.Header().Set("Content-Type", "application/json")
 		json.NewEncoder(w).Encode(agents)
 	}
 }
+
+func DeleteAgentHandler(database *db.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		parts := strings.Split(strings.Trim(r.URL.Path, "/"), "/")
+		if len(parts) < 3 {
+			http.Error(w, "invalid path", 400)
+			return
+		}
+		agentID := parts[2]
+		if err := database.DeleteAgent(agentID); err != nil {
+			http.Error(w, err.Error(), 500)
+			return
+		}
+		w.WriteHeader(http.StatusNoContent)
+	}
+}

server/handlers/config.go

@@ -26,7 +26,7 @@ func AgentConfigHandler(database *db.DB, pushConfig func(agentID string, cfg *mo
 				return
 			}
 			if cfg == nil {
-				cfg = &models.AgentConfig{}
+				cfg = models.DefaultAgentConfig()
 			}
 			w.Header().Set("Content-Type", "application/json")
 			json.NewEncoder(w).Encode(cfg)

server/handlers/icons.go

@@ -3,6 +3,7 @@ package handlers
 import (
 	"bytes"
 	"image"
+	_ "image/gif"
 	_ "image/jpeg"
 	"image/png"
 	"io"
@@ -11,6 +12,7 @@ import (
 
 	"github.com/disintegration/imaging"
 	"github.com/user/nanometrics/server/db"
+	_ "golang.org/x/image/webp"
 )
 
 const maxIconSize = 128

server/main.go

@@ -110,6 +110,8 @@ func main() {
 			handlers.IconUploadHandler(database)(w, r)
 		case endsWith(r.URL.Path, "/icon") && r.Method == http.MethodGet:
 			handlers.IconGetHandler(database)(w, r)
+		case r.Method == http.MethodDelete:
+			handlers.DeleteAgentHandler(database)(w, r)
 		default:
 			http.NotFound(w, r)
 		}

server/models/models.go

@@ -4,6 +4,7 @@ type AgentMetrics struct {
 	Hostname    string        `json:"hostname"`
 	IP          string        `json:"ip"`
 	Status      string        `json:"status"`
+	Version     string        `json:"version"`
 	CPUPercent  *float64      `json:"cpu_percent"`
 	MemoryUsed  *int64        `json:"memory_used"`
 	MemoryFree  *int64        `json:"memory_free"`
@@ -32,6 +33,7 @@ type Agent struct {
 	IP          string        `json:"ip"`
 	Status      string        `json:"status"`
 	LastSeen    int64         `json:"last_seen"`
+	Version     string        `json:"version,omitempty"`
 	LastMetrics *AgentMetrics `json:"last_metrics,omitempty"`
 }
 
@@ -88,6 +90,20 @@ type ServerConfig struct {
 	PopupDetailH     int  `json:"popup_detail_h"`
 }
 
+func DefaultAgentConfig() *AgentConfig {
+	on := MetricProto{UDP: true, MQTT: false}
+	return &AgentConfig{
+		Protocols: ProtocolsConfig{UDP: UDPConfig{Enabled: true}},
+		Metrics: MetricsConfig{
+			CPU:     on,
+			Memory:  on,
+			Disk:    on,
+			Smart:   on,
+			Uptime:  on,
+		},
+	}
+}
+
 func DefaultServerConfig() ServerConfig {
 	return ServerConfig{
 		TileMinWidth: 220, FontSize: 13,

server/nginx/nginx.conf

@@ -2,6 +2,7 @@ server {
     listen 80;
     root /usr/share/nginx/html;
     index index.html;
+    client_max_body_size 10m;
 
     location /api/ {
         proxy_pass http://server:8080;