Bump version to v0.1.202

Revert to v0.1.192 - fix agent hang issue
Revert D-Bus usage, use systemctl commands only
2025-11-28 12:45:25 +01:00 · 2025-11-28 12:42:24 +01:00 · 2025-11-28 12:15:04 +01:00 · 2025-11-28 11:57:31 +01:00 · 2025-11-28 11:46:28 +01:00
14 changed files with 523 additions and 1554 deletions
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -156,56 +156,6 @@ Complete migration from string-based metrics to structured JSON data. Eliminates
 - ✅ Backward compatibility via bridge conversion to existing UI widgets
 - ✅ All string parsing bugs eliminated
 ### Cached Collector Architecture (🚧 PLANNED)
 **Problem:** Blocking collectors prevent timely ZMQ transmission, causing false "host offline" alerts.
 **Previous (Sequential Blocking):**
 ```
 Every 1 second:
  └─ collect_all_data() [BLOCKS for 2-10+ seconds]
      ├─ CPU (fast: 10ms)
      ├─ Memory (fast: 20ms)
      ├─ Disk SMART (slow: 3s per drive × 4 drives = 12s)
      ├─ Service disk usage (slow: 2-8s per service)
      └─ Docker (medium: 500ms)
  └─ send_via_zmq()  [Only after ALL collection completes]
 Result: If any collector takes >10s → "host offline" false alert
 ```
 **New (Cached Independent Collectors):**
 ```
 Shared Cache: Arc<RwLock<AgentData>>
 Background Collectors (independent async tasks):
 ├─ Fast collectors (CPU, RAM, Network)
 │   └─ Update cache every 1 second
 ├─ Medium collectors (Services, Docker)
 │   └─ Update cache every 5 seconds
 └─ Slow collectors (Disk usage, SMART data)
    └─ Update cache every 60 seconds
 ZMQ Sender (separate async task):
 Every 1 second:
  └─ Read current cache
  └─ Send via ZMQ [Always instant, never blocked]
 ```
 **Benefits:**
 - ✅ ZMQ sends every 1 second regardless of collector speed
 - ✅ No false "host offline" alerts from slow collectors
 - ✅ Different update rates for different metrics (CPU=1s, SMART=60s)
 - ✅ System stays responsive even with slow operations
 - ✅ Slow collectors can use longer timeouts without blocking
 **Implementation:**
 - Shared `AgentData` cache wrapped in `Arc<RwLock<>>`
 - Each collector spawned as independent tokio task
 - Collectors update their section of cache at their own rate
 - ZMQ sender reads cache every 1s and transmits
 - Stale data acceptable for slow-changing metrics (disk usage, SMART)
 ### Maintenance Mode
 - Agent checks for `/tmp/cm-maintenance` file before sending notifications
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 # This file is automatically generated by Cargo.
 version = 4
 [[package]]
@@ -103,137 +104,6 @@ dependencies = [
 "object",
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@@ -245,12 +115,6 @@ dependencies = [
 "syn",
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 [[package]]
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@@ -281,84 +145,12 @@ version = "2.10.0"
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@@ -373,9 +165,9 @@ checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 [[package]]
 name = "cc"
-version = "1.2.47"
+version = "1.2.46"
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-checksum = "cd405d82c84ff7f35739f175f67d8b9fb7687a0e84ccdc78bd3568839827cf07"
+checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
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@@ -399,12 +191,6 @@ version = "1.0.4"
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@@ -453,9 +239,9 @@ dependencies = [
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+version = "4.5.52"
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-checksum = "c9e340e012a1bf4935f5282ed1436d1489548e8f72308207ea5df0e23d2d03f8"
+checksum = "aa8120877db0e5c011242f96806ce3c94e0737ab8108532a76a3300a01db2ab8"
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@@ -463,9 +249,9 @@ dependencies = [
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-version = "4.5.53"
+version = "4.5.52"
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-checksum = "d76b5d13eaa18c901fd2f7fca939fefe3a0727a953561fefdf3b2922b8569d00"
+checksum = "02576b399397b659c26064fbc92a75fede9d18ffd5f80ca1cd74ddab167016e1"
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@@ -493,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
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@@ -504,7 +290,7 @@ dependencies = [
 "ratatui",
 "serde",
 "serde_json",
- "thiserror 1.0.69",
+ "thiserror",
 "tokio",
 "toml",
 "tracing",
@@ -515,42 +301,35 @@ dependencies = [
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+version = "0.1.191"
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- "thiserror 1.0.69",
+ "thiserror",
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 dependencies = [
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- "thiserror 1.0.69",
+ "thiserror",
 ]
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@@ -559,15 +338,6 @@ version = "1.0.4"
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@@ -584,15 +354,6 @@ version = "0.8.7"
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@@ -674,36 +435,6 @@ dependencies = [
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@@ -726,12 +457,6 @@ dependencies = [
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@@ -763,33 +488,6 @@ dependencies = [
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@@ -806,27 +504,6 @@ dependencies = [
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@@ -875,21 +552,6 @@ dependencies = [
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@@ -897,7 +559,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -965,11 +591,8 @@ version = "0.3.31"
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@@ -977,16 +600,6 @@ dependencies = [
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 [[package]]
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@@ -997,17 +610,6 @@ dependencies = [
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 ]
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 ]
 [[package]]
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@@ -1031,20 +633,14 @@ dependencies = [
 "futures-core",
 "futures-sink",
 "futures-util",
- "http 0.2.12",
+ "http",
- "indexmap 2.12.1",
+ "indexmap",
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 "tokio-util",
 "tracing",
 ]
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 [[package]]
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@@ -1068,9 +664,9 @@ dependencies = [
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 name = "time-core"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40868e7c1d2f0b8d73e4a8c7f0ff63af4f6d19be117e90bd73eb1d62cf831c6b"
 [[package]]
 name = "time-macros"
 version = "0.2.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "30cfb0125f12d9c277f35663a0a33f8c30190f4e4574868a330595412d34ebf3"
 dependencies = [
 "num-conv",
 "time-core",
 ]
 [[package]]
 name = "tinystr"
 version = "0.8.2"
@@ -2787,8 +1910,8 @@ checksum = "dc1beb996b9d83529a9e75c17a1686767d148d70663143c7854d8b4a09ced362"
 dependencies = [
 "serde",
 "serde_spanned",
- "toml_datetime 0.6.11",
+ "toml_datetime",
- "toml_edit 0.22.27",
+ "toml_edit",
 ]
 [[package]]
@@ -2800,50 +1923,20 @@ dependencies = [
 "serde",
 ]
 [[package]]
 name = "toml_datetime"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2cdb639ebbc97961c51720f858597f7f24c4fc295327923af55b74c3c724533"
 dependencies = [
 "serde_core",
 ]
 [[package]]
 name = "toml_edit"
 version = "0.22.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41fe8c660ae4257887cf66394862d21dbca4a6ddd26f04a3560410406a2f819a"
 dependencies = [
- "indexmap 2.12.1",
+ "indexmap",
 "serde",
 "serde_spanned",
- "toml_datetime 0.6.11",
+ "toml_datetime",
 "toml_write",
 "winnow",
 ]
 [[package]]
 name = "toml_edit"
 version = "0.23.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6485ef6d0d9b5d0ec17244ff7eb05310113c3f316f2d14200d4de56b3cb98f8d"
 dependencies = [
 "indexmap 2.12.1",
 "toml_datetime 0.7.3",
 "toml_parser",
 "winnow",
 ]
 [[package]]
 name = "toml_parser"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0cbe268d35bdb4bb5a56a2de88d0ad0eb70af5384a99d648cd4b3d04039800e"
 dependencies = [
 "winnow",
 ]
 [[package]]
 name = "toml_write"
 version = "0.1.2"
@@ -2869,9 +1962,9 @@ dependencies = [
 [[package]]
 name = "tracing-attributes"
-version = "0.1.31"
+version = "0.1.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
+checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -2880,9 +1973,9 @@ dependencies = [
 [[package]]
 name = "tracing-core"
-version = "0.1.35"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a04e24fab5c89c6a36eb8558c9656f30d81de51dfa4d3b45f26b21d61fa0a6c"
+checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
 dependencies = [
 "once_cell",
 "valuable",
@@ -2923,23 +2016,6 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 [[package]]
 name = "typenum"
 version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "562d481066bde0658276a35467c4af00bdc6ee726305698a55b86e61d7ad82bb"
 [[package]]
 name = "uds_windows"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "89daebc3e6fd160ac4aa9fc8b3bf71e1f74fbf92367ae71fb83a037e8bf164b9"
 dependencies = [
 "memoffset",
 "tempfile",
 "winapi",
 ]
 [[package]]
 name = "unicode-ident"
 version = "1.0.22"
@@ -3437,9 +2513,9 @@ checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 [[package]]
 name = "winnow"
-version = "0.7.14"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
+checksum = "21a0236b59786fed61e2a80582dd500fe61f18b5dca67a4a067d0bc9039339cf"
 dependencies = [
 "memchr",
 ]
@@ -3466,16 +2542,6 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"
 [[package]]
 name = "xdg-home"
 version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec1cdab258fb55c0da61328dc52c8764709b249011b2cad0454c72f0bf10a1f6"
 dependencies = [
 "libc",
 "windows-sys 0.59.0",
 ]
 [[package]]
 name = "yoke"
 version = "0.8.1"
@@ -3499,82 +2565,20 @@ dependencies = [
 "synstructure",
 ]
 [[package]]
 name = "zbus"
 version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bb97012beadd29e654708a0fdb4c84bc046f537aecfde2c3ee0a9e4b4d48c725"
 dependencies = [
 "async-broadcast",
 "async-executor",
 "async-fs",
 "async-io",
 "async-lock",
 "async-process",
 "async-recursion",
 "async-task",
 "async-trait",
 "blocking",
 "enumflags2",
 "event-listener",
 "futures-core",
 "futures-sink",
 "futures-util",
 "hex",
 "nix 0.29.0",
 "ordered-stream",
 "rand",
 "serde",
 "serde_repr",
 "sha1",
 "static_assertions",
 "tracing",
 "uds_windows",
 "windows-sys 0.52.0",
 "xdg-home",
 "zbus_macros",
 "zbus_names",
 "zvariant",
 ]
 [[package]]
 name = "zbus_macros"
 version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "267db9407081e90bbfa46d841d3cbc60f59c0351838c4bc65199ecd79ab1983e"
 dependencies = [
 "proc-macro-crate",
 "proc-macro2",
 "quote",
 "syn",
 "zvariant_utils",
 ]
 [[package]]
 name = "zbus_names"
 version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4b9b1fef7d021261cc16cba64c351d291b715febe0fa10dc3a443ac5a5022e6c"
 dependencies = [
 "serde",
 "static_assertions",
 "zvariant",
 ]
 [[package]]
 name = "zerocopy"
-version = "0.8.30"
+version = "0.8.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ea879c944afe8a2b25fef16bb4ba234f47c694565e97383b36f3a878219065c"
+checksum = "0894878a5fa3edfd6da3f88c4805f4c8558e2b996227a3d864f47fe11e38282c"
 dependencies = [
 "zerocopy-derive",
 ]
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.30"
+version = "0.8.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf955aa904d6040f70dc8e9384444cb1030aed272ba3cb09bbc4ab9e7c1f34f5"
+checksum = "88d2b8d9c68ad2b9e4340d7832716a4d21a22a1154777ad56ea55c51a9cf3831"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -3666,40 +2670,3 @@ dependencies = [
 "system-deps",
 "zeromq-src",
 ]
 [[package]]
 name = "zvariant"
 version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2084290ab9a1c471c38fc524945837734fbf124487e105daec2bb57fd48c81fe"
 dependencies = [
 "endi",
 "enumflags2",
 "serde",
 "static_assertions",
 "zvariant_derive",
 ]
 [[package]]
 name = "zvariant_derive"
 version = "4.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73e2ba546bda683a90652bac4a279bc146adad1386f25379cf73200d2002c449"
 dependencies = [
 "proc-macro-crate",
 "proc-macro2",
 "quote",
 "syn",
 "zvariant_utils",
 ]
 [[package]]
 name = "zvariant_utils"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c51bcff7cc3dbb5055396bcf774748c3dab426b4b8659046963523cee4808340"
 dependencies = [
 "proc-macro2",
 "quote",
 "syn",
 ]
--- a/agent/Cargo.toml
+++ b/agent/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.197"
+version = "0.1.202"
 edition = "2021"
 [dependencies]
@@ -20,17 +20,4 @@ gethostname = { workspace = true }
 chrono-tz = "0.8"
 toml = { workspace = true }
 async-trait = "0.1"
-reqwest = { version = "0.11", features = ["json", "blocking"] }
+reqwest = { version = "0.11", features = ["json", "blocking"] }
 # Native system APIs
 nix = { version = "0.29", features = ["fs"] }
 rtnetlink = "0.14"
 netlink-packet-route = "0.19"
 futures = "0.3"
 libc = "0.2"
 # Docker API client
 bollard = "0.17"
 # D-Bus client for systemd
 zbus = "4.0"
--- a/agent/src/agent.rs
+++ b/agent/src/agent.rs
@@ -4,7 +4,7 @@ use std::time::Duration;
 use tokio::time::interval;
 use tracing::{debug, error, info};
-use crate::communication::ZmqHandler;
+use crate::communication::{AgentCommand, ZmqHandler};
 use crate::config::AgentConfig;
 use crate::collectors::{
    Collector,
@@ -134,6 +134,12 @@ impl Agent {
                    // NOTE: With structured data, we might need to implement status tracking differently
                    // For now, we skip this until status evaluation is migrated
                }
                // Handle incoming commands (check periodically)
                _ = tokio::time::sleep(Duration::from_millis(100)) => {
                    if let Err(e) = self.handle_commands().await {
                        error!("Error handling commands: {}", e);
                    }
                }
                _ = &mut shutdown_rx => {
                    info!("Shutdown signal received, stopping agent loop");
                    break;
@@ -253,4 +259,36 @@ impl Agent {
        Ok(())
    }
    /// Handle incoming commands from dashboard
    async fn handle_commands(&mut self) -> Result<()> {
        // Try to receive a command (non-blocking)
        if let Ok(Some(command)) = self.zmq_handler.try_receive_command() {
            info!("Received command: {:?}", command);
            match command {
                AgentCommand::CollectNow => {
                    info!("Received immediate collection request");
                    if let Err(e) = self.collect_and_broadcast().await {
                        error!("Failed to collect on demand: {}", e);
                    }
                }
                AgentCommand::SetInterval { seconds } => {
                    info!("Received interval change request: {}s", seconds);
                    // Note: This would require more complex handling to update the interval
                    // For now, just acknowledge
                }
                AgentCommand::ToggleCollector { name, enabled } => {
                    info!("Received collector toggle request: {} -> {}", name, enabled);
                    // Note: This would require more complex handling to enable/disable collectors
                    // For now, just acknowledge
                }
                AgentCommand::Ping => {
                    info!("Received ping command");
                    // Maybe send back a pong or status
                }
            }
        }
        Ok(())
    }
 }
--- a/agent/src/collectors/cpu.rs
+++ b/agent/src/collectors/cpu.rs
@@ -1,25 +1,22 @@
 use async_trait::async_trait;
-use cm_dashboard_shared::{AgentData, Status, HysteresisThresholds, CpuData};
+use cm_dashboard_shared::{AgentData, Status, HysteresisThresholds};
 use std::sync::RwLock;
 use std::time::Instant;
 use tracing::debug;
 use super::{utils, Collector, CollectorError};
 use crate::config::CpuConfig;
-/// Extremely efficient CPU metrics collector with interval-based caching
+/// Extremely efficient CPU metrics collector
 ///
 /// EFFICIENCY OPTIMIZATIONS:
 /// - Single /proc/loadavg read for all load metrics
 /// - Single /proc/stat read for CPU usage
 /// - Minimal string allocations
 /// - No process spawning
 /// - <0.1ms collection time target
 pub struct CpuCollector {
    load_thresholds: HysteresisThresholds,
    temperature_thresholds: HysteresisThresholds,
    config: CpuConfig,
    state: RwLock<CpuCacheState>,
 }
 #[derive(Debug, Clone)]
 struct CpuCacheState {
    last_collection: Option<Instant>,
    cached_data: CpuData,
 }
 impl CpuCollector {
@@ -29,39 +26,15 @@ impl CpuCollector {
            config.load_warning_threshold,
            config.load_critical_threshold,
        );
-
+        
        let temperature_thresholds = HysteresisThresholds::new(
            config.temperature_warning_threshold,
            config.temperature_critical_threshold,
        );
-
+        
        Self {
            load_thresholds,
            temperature_thresholds,
            config,
            state: RwLock::new(CpuCacheState {
                last_collection: None,
                cached_data: CpuData {
                    load_1min: 0.0,
                    load_5min: 0.0,
                    load_15min: 0.0,
                    frequency_mhz: 0.0,
                    temperature_celsius: None,
                    load_status: Status::Unknown,
                    temperature_status: Status::Unknown,
                },
            }),
        }
    }
    fn should_update_cache(&self) -> bool {
        let state = self.state.read().unwrap();
        match state.last_collection {
            None => true,
            Some(last) => {
                let cache_duration = std::time::Duration::from_secs(self.config.interval_seconds);
                last.elapsed() > cache_duration
            }
        }
    }
@@ -183,14 +156,6 @@ impl CpuCollector {
 #[async_trait]
 impl Collector for CpuCollector {
    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
        // Check if cache is valid
        if !self.should_update_cache() {
            let state = self.state.read().unwrap();
            agent_data.system.cpu = state.cached_data.clone();
            debug!("Using cached CPU data (interval: {}s)", self.config.interval_seconds);
            return Ok(());
        }
        debug!("Collecting CPU metrics");
        let start = std::time::Instant::now();
@@ -222,11 +187,6 @@ impl Collector for CpuCollector {
            Status::Unknown
        };
        // Update cache
        let mut state = self.state.write().unwrap();
        state.last_collection = Some(Instant::now());
        state.cached_data = agent_data.system.cpu.clone();
        Ok(())
    }
 }
--- a/agent/src/collectors/disk.rs
+++ b/agent/src/collectors/disk.rs
@@ -6,7 +6,6 @@ use crate::config::DiskConfig;
 use std::process::Command;
 use std::time::Instant;
 use std::collections::HashMap;
 use std::sync::RwLock;
 use tracing::debug;
 use super::{Collector, CollectorError};
@@ -15,19 +14,6 @@ use super::{Collector, CollectorError};
 pub struct DiskCollector {
    config: DiskConfig,
    temperature_thresholds: HysteresisThresholds,
    /// Cached state with thread-safe interior mutability
    state: RwLock<DiskCacheState>,
 }
 /// Internal state for disk caching
 #[derive(Debug, Clone)]
 struct DiskCacheState {
    /// Last collection time for performance tracking
    last_collection: Option<Instant>,
    /// Cached drive data
    cached_drives: Vec<DriveData>,
    /// Cached pool data
    cached_pools: Vec<PoolData>,
 }
 /// A physical drive with its filesystems
@@ -72,17 +58,10 @@ impl DiskCollector {
            config.temperature_warning_celsius,
            config.temperature_critical_celsius,
        );
-
+        
        let state = DiskCacheState {
            last_collection: None,
            cached_drives: Vec::new(),
            cached_pools: Vec::new(),
        };
        Self {
            config,
            temperature_thresholds,
            state: RwLock::new(state),
        }
    }
@@ -125,70 +104,40 @@ impl DiskCollector {
        self.populate_drives_data(&physical_drives, &smart_data, agent_data)?;
        self.populate_pools_data(&mergerfs_pools, &smart_data, agent_data)?;
        // Step 7: Update cache with fresh data
        {
            let mut state = self.state.write().unwrap();
            state.cached_drives = agent_data.system.storage.drives.clone();
            state.cached_pools = agent_data.system.storage.pools.clone();
            state.last_collection = Some(Instant::now());
        }
        let elapsed = start_time.elapsed();
        debug!("Storage collection completed in {:?}", elapsed);
        Ok(())
    }
-    /// Check if disk collection cache should be updated
+    /// Get block devices and their mount points using lsblk
    fn should_update_cache(&self) -> bool {
        let state = self.state.read().unwrap();
        match state.last_collection {
            None => true,
            Some(last) => {
                let cache_duration = std::time::Duration::from_secs(self.config.interval_seconds);
                last.elapsed() > cache_duration
            }
        }
    }
    /// Get cached disk data if available and fresh
    fn get_cached_data(&self) -> Option<(Vec<DriveData>, Vec<PoolData>)> {
        if !self.should_update_cache() {
            let state = self.state.read().unwrap();
            Some((state.cached_drives.clone(), state.cached_pools.clone()))
        } else {
            None
        }
    }
    /// Get block devices and their mount points by reading /proc/mounts
    async fn get_mount_devices(&self) -> Result<HashMap<String, String>, CollectorError> {
-        let content = std::fs::read_to_string("/proc/mounts")
+        use super::run_command_with_timeout;
        let mut cmd = Command::new("lsblk");
        cmd.args(&["-rn", "-o", "NAME,MOUNTPOINT"]);
        let output = run_command_with_timeout(cmd, 2).await
            .map_err(|e| CollectorError::SystemRead {
-                path: "/proc/mounts".to_string(),
+                path: "block devices".to_string(),
                error: e.to_string(),
            })?;
        let mut mount_devices = HashMap::new();
-
+        for line in String::from_utf8_lossy(&output.stdout).lines() {
        for line in content.lines() {
            let parts: Vec<&str> = line.split_whitespace().collect();
-            if parts.len() >= 3 {
+            if parts.len() >= 2 {
-                let device = parts[0];
+                let device_name = parts[0];
                let mount_point = parts[1];
-                let fs_type = parts[2];
+                
-
+                // Skip swap partitions and unmounted devices
-                // Skip pseudo filesystems and fuse mounts
+                if mount_point == "[SWAP]" || mount_point.is_empty() {
                if fs_type.starts_with("fuse") ||
                   matches!(fs_type, "proc" | "sysfs" | "tmpfs" | "devtmpfs" |
                           "devpts" | "cgroup" | "cgroup2" | "pstore" | "bpf" |
                           "tracefs" | "debugfs" | "securityfs" | "hugetlbfs" |
                           "mqueue" | "configfs" | "autofs") {
                    continue;
                }
-
+                
-                mount_devices.insert(mount_point.to_string(), device.to_string());
+                // Convert device name to full path
                let device_path = format!("/dev/{}", device_name);
                mount_devices.insert(mount_point.to_string(), device_path);
            }
        }
@@ -238,20 +187,44 @@ impl DiskCollector {
        Ok(())
    }
-    /// Get filesystem info for a single mount point using statvfs syscall
+    /// Get filesystem info for a single mount point
    fn get_filesystem_info(&self, mount_point: &str) -> Result<(u64, u64), CollectorError> {
-        use nix::sys::statvfs::statvfs;
+        let output = std::process::Command::new("timeout")
            .args(&["2", "df", "--block-size=1", mount_point])
            .output()
            .map_err(|e| CollectorError::SystemRead {
                path: format!("df {}", mount_point),
                error: e.to_string(),
            })?;
-        let stat = statvfs(mount_point).map_err(|e| CollectorError::SystemRead {
+        let output_str = String::from_utf8_lossy(&output.stdout);
-            path: mount_point.to_string(),
+        let lines: Vec<&str> = output_str.lines().collect();
-            error: format!("statvfs failed: {}", e),
+        
        if lines.len() < 2 {
            return Err(CollectorError::Parse {
                value: output_str.to_string(),
                error: "Expected at least 2 lines from df output".to_string(),
            });
        }
        // Parse the data line (skip header)
        let parts: Vec<&str> = lines[1].split_whitespace().collect();
        if parts.len() < 4 {
            return Err(CollectorError::Parse {
                value: lines[1].to_string(),
                error: "Expected at least 4 fields in df output".to_string(),
            });
        }
        let total_bytes: u64 = parts[1].parse().map_err(|e| CollectorError::Parse {
            value: parts[1].to_string(),
            error: format!("Failed to parse total bytes: {}", e),
        })?;
-        // Calculate total and used bytes
+        let used_bytes: u64 = parts[2].parse().map_err(|e| CollectorError::Parse {
-        let block_size = stat.fragment_size() as u64;
+            value: parts[2].to_string(),
-        let total_bytes = stat.blocks() as u64 * block_size;
+            error: format!("Failed to parse used bytes: {}", e),
-        let available_bytes = stat.blocks_available() as u64 * block_size;
+        })?;
        let used_bytes = total_bytes - available_bytes;
        Ok((total_bytes, used_bytes))
    }
@@ -787,29 +760,32 @@ impl DiskCollector {
        Ok((data_drives, parity_drives))
    }
-    /// Get drive information for a mount path by reading /proc/mounts
+    /// Get drive information for a mount path
    fn get_drive_info_for_path(&self, path: &str) -> anyhow::Result<PoolDrive> {
-        // Read /proc/mounts to find the backing device
+        // Use lsblk to find the backing device with timeout
-        let content = std::fs::read_to_string("/proc/mounts")
+        let output = Command::new("timeout")
-            .map_err(|e| anyhow::anyhow!("Failed to read /proc/mounts: {}", e))?;
+            .args(&["2", "lsblk", "-rn", "-o", "NAME,MOUNTPOINT"])
-
+            .output()
            .map_err(|e| anyhow::anyhow!("Failed to run lsblk: {}", e))?;
        let output_str = String::from_utf8_lossy(&output.stdout);
        let mut device = String::new();
-
+        
-        for line in content.lines() {
+        for line in output_str.lines() {
            let parts: Vec<&str> = line.split_whitespace().collect();
            if parts.len() >= 2 && parts[1] == path {
                device = parts[0].to_string();
                break;
            }
        }
-
+        
        if device.is_empty() {
            return Err(anyhow::anyhow!("Could not find device for path {}", path));
        }
-
+        
-        // Extract base device name (e.g., "/dev/sda1" -> "sda")
+        // Extract base device name (e.g., "sda1" -> "sda")
-        let base_device = self.extract_base_device(&device);
+        let base_device = self.extract_base_device(&format!("/dev/{}", device));
-
+        
        // Get temperature from SMART data if available
        let temperature = if let Ok(smart_data) = tokio::task::block_in_place(|| {
            tokio::runtime::Handle::current().block_on(self.get_smart_data(&base_device))
@@ -818,7 +794,7 @@ impl DiskCollector {
        } else {
            None
        };
-
+        
        Ok(PoolDrive {
            name: base_device,
            mount_point: path.to_string(),
@@ -862,15 +838,7 @@ impl DiskCollector {
 #[async_trait]
 impl Collector for DiskCollector {
    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
-        // Use cached data if available and fresh
+        self.collect_storage_data(agent_data).await
        if let Some((cached_drives, cached_pools)) = self.get_cached_data() {
            agent_data.system.storage.drives = cached_drives;
            agent_data.system.storage.pools = cached_pools;
            Ok(())
        } else {
            // Collect fresh data
            self.collect_storage_data(agent_data).await
        }
    }
 }
--- a/agent/src/collectors/memory.rs
+++ b/agent/src/collectors/memory.rs
@@ -95,47 +95,62 @@ impl MemoryCollector {
        Ok(())
    }
-    /// Populate tmpfs data into AgentData using statvfs syscall
+    /// Populate tmpfs data into AgentData
    async fn populate_tmpfs_data(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
        use nix::sys::statvfs::statvfs;
        // Discover all tmpfs mount points
        let tmpfs_mounts = self.discover_tmpfs_mounts()?;
-
+        
        if tmpfs_mounts.is_empty() {
            debug!("No tmpfs mounts found to monitor");
            return Ok(());
        }
-        // Get usage data for each tmpfs mount using statvfs syscall
+        // Get usage data for all tmpfs mounts at once using df (with 2 second timeout)
-        for mount_point in tmpfs_mounts {
+        let mut df_args = vec!["2", "df", "--output=target,size,used", "--block-size=1"];
-            match statvfs(mount_point.as_str()) {
+        df_args.extend(tmpfs_mounts.iter().map(|s| s.as_str()));
                Ok(stat) => {
                    let block_size = stat.fragment_size() as u64;
                    let total_bytes = stat.blocks() as u64 * block_size;
                    let available_bytes = stat.blocks_available() as u64 * block_size;
                    let used_bytes = total_bytes - available_bytes;
-                    if total_bytes == 0 {
+        let df_output = std::process::Command::new("timeout")
-                        continue;
+            .args(&df_args[..])
-                    }
+            .output()
            .map_err(|e| CollectorError::SystemRead {
                path: "tmpfs mounts".to_string(),
                error: e.to_string(),
            })?;
-                    let total_gb = total_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
+        let df_str = String::from_utf8_lossy(&df_output.stdout);
-                    let used_gb = used_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
+        let df_lines: Vec<&str> = df_str.lines().skip(1).collect(); // Skip header
                    let usage_percent = (used_bytes as f32 / total_bytes as f32) * 100.0;
-                    // Add to tmpfs list
+        // Process each tmpfs mount
-                    agent_data.system.memory.tmpfs.push(TmpfsData {
+        for (i, mount_point) in tmpfs_mounts.iter().enumerate() {
-                        mount: mount_point.clone(),
+            if i >= df_lines.len() {
-                        usage_percent,
+                debug!("Not enough df output lines for tmpfs mount: {}", mount_point);
-                        used_gb,
+                continue;
                        total_gb,
                    });
                }
                Err(e) => {
                    debug!("Failed to get stats for tmpfs mount {}: {}", mount_point, e);
                }
            }
            let parts: Vec<&str> = df_lines[i].split_whitespace().collect();
            if parts.len() < 3 {
                debug!("Invalid df output for tmpfs mount: {}", mount_point);
                continue;
            }
            let total_bytes: u64 = parts[1].parse().unwrap_or(0);
            let used_bytes: u64 = parts[2].parse().unwrap_or(0);
            if total_bytes == 0 {
                continue;
            }
            let total_gb = total_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
            let used_gb = used_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
            let usage_percent = (used_bytes as f32 / total_bytes as f32) * 100.0;
            // Add to tmpfs list
            agent_data.system.memory.tmpfs.push(TmpfsData {
                mount: mount_point.clone(),
                usage_percent,
                used_gb,
                total_gb,
            });
        }
        // Sort tmpfs mounts by mount point for consistent display order
--- a/agent/src/collectors/network.rs
+++ b/agent/src/collectors/network.rs
@@ -1,12 +1,7 @@
 use async_trait::async_trait;
 use cm_dashboard_shared::{AgentData, NetworkInterfaceData, Status};
 use std::process::Command;
 use tracing::debug;
 use futures::stream::TryStreamExt;
 use rtnetlink::{new_connection, IpVersion};
 use netlink_packet_route::link::LinkAttribute;
 use netlink_packet_route::address::AddressAttribute;
 use netlink_packet_route::route::RouteAttribute;
 use std::net::IpAddr;
 use super::{Collector, CollectorError};
 use crate::config::NetworkConfig;
@@ -54,52 +49,36 @@ impl NetworkCollector {
        }
    }
-    /// Get the primary physical interface (the one with default route) using rtnetlink
+    /// Get the primary physical interface (the one with default route)
-    async fn get_primary_physical_interface() -> Option<String> {
+    fn get_primary_physical_interface() -> Option<String> {
-        let (connection, handle, _) = match new_connection() {
+        match Command::new("timeout").args(["2", "ip", "route", "show", "default"]).output() {
-            Ok(conn) => conn,
+            Ok(output) if output.status.success() => {
-            Err(e) => {
+                let output_str = String::from_utf8_lossy(&output.stdout);
-                debug!("Failed to create netlink connection: {}", e);
+                // Parse: "default via 192.168.1.1 dev eno1 ..."
-                return None;
+                for line in output_str.lines() {
-            }
+                    if line.starts_with("default") {
-        };
+                        if let Some(dev_pos) = line.find(" dev ") {
-
+                            let after_dev = &line[dev_pos + 5..];
-        tokio::spawn(connection);
+                            if let Some(space_pos) = after_dev.find(' ') {
-
+                                let interface = &after_dev[..space_pos];
-        // Get default route
+                                // Only return if it's a physical interface
-        let mut routes = handle.route().get(IpVersion::V4).execute();
+                                if Self::is_physical_interface(interface) {
-
+                                    return Some(interface.to_string());
-        while let Ok(Some(route)) = routes.try_next().await {
+                                }
            // Check if this is a default route (destination is 0.0.0.0/0)
            if route.header.destination_prefix_length == 0 {
                // Find the output interface (OIF) attribute
                if let Some(oif) = route.attributes.iter().find_map(|attr| {
                    if let RouteAttribute::Oif(index) = attr {
                        Some(*index)
                    } else {
                        None
                    }
                }) {
                    // Get interface name from index
                    let mut link = handle.link().get().match_index(oif).execute();
                    if let Ok(Some(link_msg)) = link.try_next().await {
                        if let Some(name) = link_msg.attributes.iter().find_map(|attr| {
                            if let LinkAttribute::IfName(n) = attr {
                                Some(n.to_string())
                            } else {
-                                None
+                                // No space after interface name (end of line)
-                            }
+                                let interface = after_dev.trim();
-                        }) {
+                                if Self::is_physical_interface(interface) {
-                            if Self::is_physical_interface(&name) {
+                                    return Some(interface.to_string());
-                                return Some(name);
+                                }
                            }
                        }
                    }
                }
                None
            }
            _ => None,
        }
        None
    }
    /// Parse VLAN configuration from /proc/net/vlan/config
@@ -124,105 +103,102 @@ impl NetworkCollector {
        vlan_map
    }
-    /// Collect network interfaces using rtnetlink
+    /// Collect network interfaces using ip command
    async fn collect_interfaces(&self) -> Vec<NetworkInterfaceData> {
        let mut interfaces = Vec::new();
        // Parse VLAN configuration
        let vlan_map = Self::parse_vlan_config();
-        // Create netlink connection
+        match Command::new("timeout").args(["2", "ip", "-j", "addr"]).output() {
-        let (connection, handle, _) = match new_connection() {
+            Ok(output) if output.status.success() => {
-            Ok(conn) => conn,
+                let json_str = String::from_utf8_lossy(&output.stdout);
            Err(e) => {
                debug!("Failed to create netlink connection: {}", e);
                return interfaces;
            }
        };
-        tokio::spawn(connection);
+                if let Ok(json_data) = serde_json::from_str::<serde_json::Value>(&json_str) {
                    if let Some(ifaces) = json_data.as_array() {
                        for iface in ifaces {
                            let name = iface["ifname"].as_str().unwrap_or("").to_string();
-        // Get all links
+                            // Skip loopback, empty names, and ifb* interfaces
-        let mut links = handle.link().get().execute();
+                            if name.is_empty() || name == "lo" || name.starts_with("ifb") {
                                continue;
                            }
-        while let Ok(Some(link)) = links.try_next().await {
+                            // Parse parent interface from @parent notation (e.g., lan@enp0s31f6)
-            // Get interface name
+                            let (interface_name, parent_interface) = if let Some(at_pos) = name.find('@') {
-            let name = match link.attributes.iter().find_map(|attr| {
+                                let (child, parent) = name.split_at(at_pos);
-                if let LinkAttribute::IfName(n) = attr {
+                                (child.to_string(), Some(parent[1..].to_string()))
-                    Some(n.to_string())
+                            } else {
-                } else {
+                                (name.clone(), None)
-                    None
+                            };
                }
            }) {
                Some(n) => n,
                None => continue,
            };
-            // Skip loopback and ifb interfaces
+                            let mut ipv4_addresses = Vec::new();
-            if name == "lo" || name.starts_with("ifb") {
+                            let mut ipv6_addresses = Vec::new();
                continue;
            }
-            // Parse parent interface from @parent notation (e.g., lan@enp0s31f6)
+                            // Extract IP addresses
-            let (interface_name, parent_interface) = if let Some(at_pos) = name.find('@') {
+                            if let Some(addr_info) = iface["addr_info"].as_array() {
-                let (child, parent) = name.split_at(at_pos);
+                                for addr in addr_info {
-                (child.to_string(), Some(parent[1..].to_string()))
+                                    if let Some(family) = addr["family"].as_str() {
-            } else {
+                                        if let Some(local) = addr["local"].as_str() {
-                (name.clone(), None)
+                                            match family {
-            };
+                                                "inet" => ipv4_addresses.push(local.to_string()),
-
+                                                "inet6" => {
-            // Get IP addresses for this interface
+                                                    // Skip link-local IPv6 addresses (fe80::)
-            let mut ipv4_addresses = Vec::new();
+                                                    if !local.starts_with("fe80:") {
-            let mut ipv6_addresses = Vec::new();
+                                                        ipv6_addresses.push(local.to_string());
-
+                                                    }
-            let mut addrs = handle.address().get().set_link_index_filter(link.header.index).execute();
+                                                }
-            while let Ok(Some(addr)) = addrs.try_next().await {
+                                                _ => {}
-                for nla in &addr.attributes {
+                                            }
-                    if let AddressAttribute::Address(ip) = nla {
+                                        }
-                        match ip {
+                                    }
                            IpAddr::V4(ipv4) => ipv4_addresses.push(ipv4.to_string()),
                            IpAddr::V6(ipv6) => {
                                // Skip link-local IPv6 addresses (fe80::)
                                if !ipv6.to_string().starts_with("fe80:") {
                                    ipv6_addresses.push(ipv6.to_string());
                                }
                            }
                            // Determine if physical and get status
                            let is_physical = Self::is_physical_interface(&interface_name);
                            // Only filter out virtual interfaces without IPs
                            // Physical interfaces should always be shown even if down/no IPs
                            if !is_physical && ipv4_addresses.is_empty() && ipv6_addresses.is_empty() {
                                continue;
                            }
                            let link_status = if is_physical {
                                Self::get_link_status(&name)
                            } else {
                                Status::Unknown  // Virtual interfaces don't have meaningful link status
                            };
                            // Look up VLAN ID from the map (use original name before @ parsing)
                            let vlan_id = vlan_map.get(&name).copied();
                            interfaces.push(NetworkInterfaceData {
                                name: interface_name,
                                ipv4_addresses,
                                ipv6_addresses,
                                is_physical,
                                link_status,
                                parent_interface,
                                vlan_id,
                            });
                        }
                    }
                }
            }
-
+            Err(e) => {
-            // Determine if physical
+                debug!("Failed to execute ip command: {}", e);
-            let is_physical = Self::is_physical_interface(&interface_name);
+            }
-
+            Ok(output) => {
-            // Only filter out virtual interfaces without IPs
+                debug!("ip command failed with status: {}", output.status);
            if !is_physical && ipv4_addresses.is_empty() && ipv6_addresses.is_empty() {
                continue;
            }
            let link_status = if is_physical {
                Self::get_link_status(&name)
            } else {
                Status::Unknown
            };
            // Look up VLAN ID
            let vlan_id = vlan_map.get(&name).copied();
            interfaces.push(NetworkInterfaceData {
                name: interface_name,
                ipv4_addresses,
                ipv6_addresses,
                is_physical,
                link_status,
                parent_interface,
                vlan_id,
            });
        }
-        // Assign primary physical interface as parent to virtual interfaces
+        // Assign primary physical interface as parent to virtual interfaces without explicit parent
-        if let Some(primary) = Self::get_primary_physical_interface().await {
+        let primary_interface = Self::get_primary_physical_interface();
        if let Some(primary) = primary_interface {
            for interface in interfaces.iter_mut() {
                // Only assign parent to virtual interfaces that don't already have one
                if !interface.is_physical && interface.parent_interface.is_none() {
                    interface.parent_interface = Some(primary.clone());
                }
--- a/agent/src/collectors/systemd.rs
+++ b/agent/src/collectors/systemd.rs
@@ -5,9 +5,6 @@ use std::process::Command;
 use std::sync::RwLock;
 use std::time::Instant;
 use tracing::{debug, warn};
 use bollard::Docker;
 use bollard::container::ListContainersOptions;
 use zbus::Connection;
 use super::{Collector, CollectorError};
 use crate::config::SystemdConfig;
@@ -77,7 +74,7 @@ impl SystemdCollector {
        debug!("Collecting systemd services metrics");
        // Get cached services (discovery only happens when needed)
-        let monitored_services = match self.get_monitored_services().await {
+        let monitored_services = match self.get_monitored_services() {
            Ok(services) => services,
            Err(e) => {
                debug!("Failed to get monitored services: {}", e);
@@ -122,7 +119,7 @@ impl SystemdCollector {
                    }
                    if service_name.contains("docker") && active_status == "active" {
-                        let docker_containers = self.get_docker_containers().await;
+                        let docker_containers = self.get_docker_containers();
                        for (container_name, container_status) in docker_containers {
                            // For now, docker containers have no additional metrics
                            // Future: could add memory_mb, cpu_percent, restart_count, etc.
@@ -137,7 +134,7 @@ impl SystemdCollector {
                        }
                        // Add Docker images
-                        let docker_images = self.get_docker_images().await;
+                        let docker_images = self.get_docker_images();
                        for (image_name, image_status, image_size_mb) in docker_images {
                            let mut metrics = Vec::new();
                            metrics.push(SubServiceMetric {
@@ -193,7 +190,7 @@ impl SystemdCollector {
    }
    /// Get monitored services, discovering them if needed or cache is expired
-    async fn get_monitored_services(&self) -> Result<Vec<String>> {
+    fn get_monitored_services(&self) -> Result<Vec<String>> {
        // Check if we need discovery without holding the lock
        let needs_discovery = {
            let state = self.state.read().unwrap();
@@ -208,7 +205,7 @@ impl SystemdCollector {
        if needs_discovery {
            debug!("Discovering systemd services (cache expired or first run)");
-            match self.discover_services_internal().await {
+            match self.discover_services_internal() {
                Ok((services, status_cache)) => {
                    if let Ok(mut state) = self.state.write() {
                        state.monitored_services = services.clone();
@@ -255,45 +252,71 @@ impl SystemdCollector {
        state.nginx_site_metrics.clone()
    }
-    /// Auto-discover interesting services to monitor using D-Bus
+    /// Auto-discover interesting services to monitor
-    async fn discover_services_internal(&self) -> Result<(Vec<String>, std::collections::HashMap<String, ServiceStatusInfo>)> {
+    fn discover_services_internal(&self) -> Result<(Vec<String>, std::collections::HashMap<String, ServiceStatusInfo>)> {
-        // Connect to system D-Bus
+        // First: Get all service unit files (with 3 second timeout)
-        let connection = Connection::system().await?;
+        let unit_files_output = Command::new("timeout")
            .args(&["3", "systemctl", "list-unit-files", "--type=service", "--no-pager", "--plain"])
            .output()?;
-        // Get systemd manager proxy
+        if !unit_files_output.status.success() {
-        let proxy = zbus::Proxy::new(
+            return Err(anyhow::anyhow!("systemctl list-unit-files command failed"));
-            &connection,
+        }
            "org.freedesktop.systemd1",
            "/org/freedesktop/systemd1",
            "org.freedesktop.systemd1.Manager",
        ).await?;
-        // List all units via D-Bus
+        // Second: Get runtime status of all units (with 3 second timeout)
-        let units: Vec<(String, String, String, String, String, String, zbus::zvariant::OwnedObjectPath, u32, String, zbus::zvariant::OwnedObjectPath)> =
+        let units_status_output = Command::new("timeout")
-            proxy.call("ListUnits", &()).await?;
+            .args(&["3", "systemctl", "list-units", "--type=service", "--all", "--no-pager", "--plain"])
            .output()?;
        if !units_status_output.status.success() {
            return Err(anyhow::anyhow!("systemctl list-units command failed"));
        }
        let unit_files_str = String::from_utf8(unit_files_output.stdout)?;
        let units_status_str = String::from_utf8(units_status_output.stdout)?;
        let mut services = Vec::new();
        let excluded_services = &self.config.excluded_services;
        let service_name_filters = &self.config.service_name_filters;
        // Parse all service unit files
        let mut all_service_names = std::collections::HashSet::new();
-        let mut service_status_cache = std::collections::HashMap::new();
+        for line in unit_files_str.lines() {
-
+            let fields: Vec<&str> = line.split_whitespace().collect();
-        // Parse D-Bus response for services only
+            if fields.len() >= 2 && fields[0].ends_with(".service") {
-        for unit in units {
+                let service_name = fields[0].trim_end_matches(".service");
            let (unit_name, _description, load_state, active_state, sub_state, _followed, _unit_path, _job_id, _job_type, _job_path) = unit;
            if unit_name.ends_with(".service") {
                let service_name = unit_name.trim_end_matches(".service");
                all_service_names.insert(service_name.to_string());
            }
        }
-                service_status_cache.insert(service_name.to_string(), ServiceStatusInfo {
+        // Parse runtime status for all units
-                    load_state: load_state.clone(),
+        let mut status_cache = std::collections::HashMap::new();
-                    active_state: active_state.clone(),
+        for line in units_status_str.lines() {
-                    sub_state: sub_state.clone(),
+            let fields: Vec<&str> = line.split_whitespace().collect();
            if fields.len() >= 4 && fields[0].ends_with(".service") {
                let service_name = fields[0].trim_end_matches(".service");
                let load_state = fields.get(1).unwrap_or(&"unknown").to_string();
                let active_state = fields.get(2).unwrap_or(&"unknown").to_string();
                let sub_state = fields.get(3).unwrap_or(&"unknown").to_string();
                status_cache.insert(service_name.to_string(), ServiceStatusInfo {
                    load_state,
                    active_state,
                    sub_state,
                });
            }
        }
-        let mut services = Vec::new();
+        // For services found in unit files but not in runtime status, set default inactive status
-        let excluded_services = &self.config.excluded_services;
+        for service_name in &all_service_names {
-        let service_name_filters = &self.config.service_name_filters;
+            if !status_cache.contains_key(service_name) {
                status_cache.insert(service_name.to_string(), ServiceStatusInfo {
                    load_state: "not-loaded".to_string(),
                    active_state: "inactive".to_string(),
                    sub_state: "dead".to_string(),
                });
            }
        }
        // Process all discovered services and apply filters
        for service_name in &all_service_names {
@@ -319,7 +342,7 @@ impl SystemdCollector {
            }
        }
-        Ok((services, service_status_cache))
+        Ok((services, status_cache))
    }
    /// Get service status from cache (if available) or fallback to systemctl
@@ -518,7 +541,7 @@ impl SystemdCollector {
        match state.last_collection {
            None => true,
            Some(last) => {
-                let cache_duration = std::time::Duration::from_secs(self.config.interval_seconds);
+                let cache_duration = std::time::Duration::from_secs(30);
                last.elapsed() > cache_duration
            }
        }
@@ -758,91 +781,94 @@ impl SystemdCollector {
        }
    }
-    /// Get docker containers as sub-services using bollard API
+    /// Get docker containers as sub-services
-    async fn get_docker_containers(&self) -> Vec<(String, String)> {
+    fn get_docker_containers(&self) -> Vec<(String, String)> {
        let mut containers = Vec::new();
-        // Connect to Docker daemon
+        // Check if docker is available (cm-agent user is in docker group)
-        let docker = match Docker::connect_with_local_defaults() {
+        // Use -a to show ALL containers (running and stopped) with 3 second timeout
-            Ok(d) => d,
+        let output = Command::new("timeout")
-            Err(e) => {
+            .args(&["3", "docker", "ps", "-a", "--format", "{{.Names}},{{.Status}}"])
-                debug!("Failed to connect to Docker daemon: {}", e);
+            .output();
-                return containers;
+
-            }
+        let output = match output {
            Ok(out) if out.status.success() => out,
            _ => return containers, // Docker not available or failed
        };
-        // List all containers (running and stopped)
+        let output_str = match String::from_utf8(output.stdout) {
-        let list_options = Some(ListContainersOptions::<String> {
+            Ok(s) => s,
-            all: true,
+            Err(_) => return containers,
            ..Default::default()
        });
        let container_list = match docker.list_containers(list_options).await {
            Ok(list) => list,
            Err(e) => {
                debug!("Failed to list Docker containers: {}", e);
                return containers;
            }
        };
-        for container in container_list {
+        for line in output_str.lines() {
-            // Get container name (remove leading slash if present)
+            if line.trim().is_empty() {
-            let container_name = container.names
+                continue;
-                .and_then(|names| names.first().map(|n| n.trim_start_matches('/').to_string()))
+            }
                .unwrap_or_else(|| container.id.clone().unwrap_or_default());
-            // Map container state to service status
+            let parts: Vec<&str> = line.split(',').collect();
-            let container_status = match container.state.as_deref() {
+            if parts.len() >= 2 {
-                Some("running") => "active",
+                let container_name = parts[0].trim();
-                Some("exited") | Some("created") => "inactive",
+                let status_str = parts[1].trim();
                _ => "failed", // restarting, paused, dead, etc.
            };
-            containers.push((format!("docker_{}", container_name), container_status.to_string()));
+                let container_status = if status_str.contains("Up") {
                    "active"
                } else if status_str.contains("Exited") || status_str.contains("Created") {
                    "inactive" // Stopped/created containers are inactive
                } else {
                    "failed" // Other states (restarting, paused, dead) → failed
                };
                containers.push((format!("docker_{}", container_name), container_status.to_string()));
            }
        }
        containers
    }
-    /// Get docker images as sub-services using bollard API
+    /// Get docker images as sub-services
-    async fn get_docker_images(&self) -> Vec<(String, String, f32)> {
+    fn get_docker_images(&self) -> Vec<(String, String, f32)> {
        let mut images = Vec::new();
        // Check if docker is available (cm-agent user is in docker group) with 3 second timeout
        let output = Command::new("timeout")
            .args(&["3", "docker", "images", "--format", "{{.Repository}}:{{.Tag}},{{.Size}}"])
            .output();
-        // Connect to Docker daemon
+        let output = match output {
-        let docker = match Docker::connect_with_local_defaults() {
+            Ok(out) if out.status.success() => out,
-            Ok(d) => d,
+            Ok(_) => {
-            Err(e) => {
+                return images;
-                debug!("Failed to connect to Docker daemon: {}", e);
+            }
            Err(_) => {
                return images;
            }
        };
-        // List all images
+        let output_str = match String::from_utf8(output.stdout) {
-        let image_list = match docker.list_images::<String>(None).await {
+            Ok(s) => s,
-            Ok(list) => list,
+            Err(_) => return images,
            Err(e) => {
                debug!("Failed to list Docker images: {}", e);
                return images;
            }
        };
-        for image in image_list {
+        for line in output_str.lines() {
-            // Get image name from repo tags
+            if line.trim().is_empty() {
-            let image_names: Vec<String> = image.repo_tags
+                continue;
                .into_iter()
                .filter(|tag| !tag.contains("<none>"))
                .collect();
            if image_names.is_empty() {
                continue; // Skip untagged images
            }
-            // Get size in MB
+            let parts: Vec<&str> = line.split(',').collect();
-            let size_mb = image.size as f32 / (1024.0 * 1024.0);
+            if parts.len() >= 2 {
                let image_name = parts[0].trim();
                let size_str = parts[1].trim();
                // Skip <none>:<none> images (dangling images)
                if image_name.contains("<none>") {
                    continue;
                }
                // Parse size to MB (sizes come as "142MB", "1.5GB", "512kB", etc.)
                let size_mb = self.parse_docker_size(size_str);
            for image_name in image_names {
                images.push((
-                    image_name,
+                    image_name.to_string(),
                    "inactive".to_string(), // Images are informational - use inactive for neutral display
                    size_mb
                ));
@@ -851,6 +877,34 @@ impl SystemdCollector {
        images
    }
    /// Parse Docker size string to MB
    fn parse_docker_size(&self, size_str: &str) -> f32 {
        let size_upper = size_str.to_uppercase();
        // Extract numeric part and unit
        let mut num_str = String::new();
        let mut unit = String::new();
        for ch in size_upper.chars() {
            if ch.is_ascii_digit() || ch == '.' {
                num_str.push(ch);
            } else if ch.is_alphabetic() {
                unit.push(ch);
            }
        }
        let value: f32 = num_str.parse().unwrap_or(0.0);
        // Convert to MB
        match unit.as_str() {
            "KB" | "K" => value / 1024.0,
            "MB" | "M" => value,
            "GB" | "G" => value * 1024.0,
            "TB" | "T" => value * 1024.0 * 1024.0,
            _ => value, // Assume bytes if no unit
        }
    }
 }
 #[async_trait]
--- a/agent/src/communication/mod.rs
+++ b/agent/src/communication/mod.rs
@@ -5,9 +5,10 @@ use zmq::{Context, Socket, SocketType};
 use crate::config::ZmqConfig;
-/// ZMQ communication handler for publishing metrics
+/// ZMQ communication handler for publishing metrics and receiving commands
 pub struct ZmqHandler {
    publisher: Socket,
    command_receiver: Socket,
 }
 impl ZmqHandler {
@@ -25,8 +26,20 @@ impl ZmqHandler {
        publisher.set_sndhwm(1000)?; // High water mark for outbound messages
        publisher.set_linger(1000)?; // Linger time on close
        // Create command receiver socket (PULL socket to receive commands from dashboard)
        let command_receiver = context.socket(SocketType::PULL)?;
        let cmd_bind_address = format!("tcp://{}:{}", config.bind_address, config.command_port);
        command_receiver.bind(&cmd_bind_address)?;
        info!("ZMQ command receiver bound to {}", cmd_bind_address);
        // Set non-blocking mode for command receiver
        command_receiver.set_rcvtimeo(0)?; // Non-blocking receive
        command_receiver.set_linger(1000)?;
        Ok(Self {
            publisher,
            command_receiver,
        })
    }
@@ -52,4 +65,36 @@ impl ZmqHandler {
        Ok(())
    }
    /// Try to receive a command (non-blocking)
    pub fn try_receive_command(&self) -> Result<Option<AgentCommand>> {
        match self.command_receiver.recv_bytes(zmq::DONTWAIT) {
            Ok(bytes) => {
                debug!("Received command message ({} bytes)", bytes.len());
                let command: AgentCommand = serde_json::from_slice(&bytes)
                    .map_err(|e| anyhow::anyhow!("Failed to deserialize command: {}", e))?;
                debug!("Parsed command: {:?}", command);
                Ok(Some(command))
            }
            Err(zmq::Error::EAGAIN) => {
                // No message available (non-blocking)
                Ok(None)
            }
            Err(e) => Err(anyhow::anyhow!("ZMQ receive error: {}", e)),
        }
    }
 }
 /// Commands that can be sent to the agent
 #[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
 pub enum AgentCommand {
    /// Request immediate metric collection
    CollectNow,
    /// Change collection interval
    SetInterval { seconds: u64 },
    /// Enable/disable a collector
    ToggleCollector { name: String, enabled: bool },
    /// Request status/health check
    Ping,
 }
--- a/agent/src/config/mod.rs
+++ b/agent/src/config/mod.rs
@@ -20,6 +20,7 @@ pub struct AgentConfig {
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ZmqConfig {
    pub publisher_port: u16,
    pub command_port: u16,
    pub bind_address: String,
    pub transmission_interval_seconds: u64,
    /// Heartbeat transmission interval in seconds for host connectivity detection
--- a/agent/src/config/validation.rs
+++ b/agent/src/config/validation.rs
@@ -7,6 +7,14 @@ pub fn validate_config(config: &AgentConfig) -> Result<()> {
        bail!("ZMQ publisher port cannot be 0");
    }
    if config.zmq.command_port == 0 {
        bail!("ZMQ command port cannot be 0");
    }
    if config.zmq.publisher_port == config.zmq.command_port {
        bail!("ZMQ publisher and command ports cannot be the same");
    }
    if config.zmq.bind_address.is_empty() {
        bail!("ZMQ bind address cannot be empty");
    }
--- a/dashboard/Cargo.toml
+++ b/dashboard/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.197"
+version = "0.1.202"
 edition = "2021"
 [dependencies]
--- a/shared/Cargo.toml
+++ b/shared/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.197"
+version = "0.1.202"
 edition = "2021"
 [dependencies]
Author	SHA1	Message	Date
Christoffer Martinsson	fe2f604703	Bump version to v0.1.202 All checks were successful Build and Release / build-and-release (push) Successful in 1m8s Details	2025-11-28 12:45:25 +01:00
Christoffer Martinsson	8bfd416327	Revert to v0.1.192 - fix agent hang issue Some checks failed Build and Release / build-and-release (push) Failing after 1m8s Details	2025-11-28 12:42:24 +01:00
Christoffer Martinsson	85c6c624fb	Revert D-Bus usage, use systemctl commands only All checks were successful Build and Release / build-and-release (push) Successful in 1m20s Details - Remove zbus dependency from agent - Replace D-Bus Connection calls with systemctl show commands - Fix agent hang by eliminating blocking D-Bus operations - get_unit_property now uses systemctl show with property flags - Memory, disk usage, and nginx config queries use systemctl - Simpler, more reliable service monitoring	2025-11-28 12:15:04 +01:00
Christoffer Martinsson	eab3f17428	Fix agent hang by reverting service discovery to systemctl All checks were successful Build and Release / build-and-release (push) Successful in 1m31s Details The D-Bus ListUnits call in discover_services_internal() was causing the agent to hang on startup. Root cause: - D-Bus ListUnits call with complex tuple destructuring hung indefinitely - Agent never completed first collection cycle - No collector output in logs Fix: - Revert discover_services_internal() to use systemctl list-units/list-unit-files - Keep D-Bus-based property queries (WorkingDirectory, MemoryCurrent, ExecStart) - Hybrid approach: systemctl for discovery, D-Bus for individual queries External commands still used: - systemctl list-units, list-unit-files (service discovery) - smartctl (SMART data) - sudo du (directory sizes) - nginx -T (config fallback) Version bump: 0.1.198 → 0.1.199	2025-11-28 11:57:31 +01:00
Christoffer Martinsson	7ad149bbe4	Replace all systemctl commands with zbus D-Bus API All checks were successful Build and Release / build-and-release (push) Successful in 1m31s Details Complete migration from systemctl subprocess calls to native D-Bus communication: Removed systemctl commands: - systemctl is-active (fallback) - use D-Bus cache from ListUnits - systemctl show --property=LoadState,ActiveState,SubState - use D-Bus cache - systemctl show --property=WorkingDirectory - use D-Bus Properties.Get - systemctl show --property=MemoryCurrent - use D-Bus Properties.Get - systemctl show nginx --property=ExecStart - use D-Bus Properties.Get Implementation details: - Added get_unit_property() helper for D-Bus property access - Made get_nginx_site_metrics() async to support D-Bus calls - Made get_nginx_sites_internal() async - Made discover_nginx_sites() async - Made get_nginx_config_from_systemd() async - Fixed RwLock guard Send issues by using scoped locks Remaining external commands: - smartctl (disk.rs) - No Rust alternative for SMART data - sudo du (systemd.rs) - Directory size measurement - nginx -T (systemd.rs) - Nginx config fallback - timeout hostname (nixos.rs) - Rare fallback only Version bump: 0.1.197 → 0.1.198	2025-11-28 11:46:28 +01:00