[pbs-devel] [PATCH v2 proxmox-backup 3/3] node: status: declutter kernel-version

[Gabriel Goller <g.goller@proxmox.com>]

Return a struct with all the components of the kernel version like it
has been done in pve. Extract and display the build version and kernel
release nicely.

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 pbs-api-types/src/node.rs | 47 ++++++++++++++++++++++++++++++++++++++-
 src/api2/node/status.rs   | 18 +++++++--------
 www/panel/NodeInfo.js     | 13 +++++++++--
 3 files changed, 66 insertions(+), 12 deletions(-)

diff --git a/pbs-api-types/src/node.rs b/pbs-api-types/src/node.rs
index 6d1fa7f0..ad2be5e3 100644
--- a/pbs-api-types/src/node.rs
+++ b/pbs-api-types/src/node.rs
@@ -1,3 +1,5 @@
+use std::ffi::OsStr;
+
 use proxmox_schema::*;
 use serde::{Deserialize, Serialize};
 
@@ -38,6 +40,47 @@ pub struct NodeInformation {
     pub fingerprint: String,
 }
 
+#[api]
+#[derive(Serialize, Deserialize, Default)]
+#[serde(rename_all = "lowercase")]
+/// The current kernel version (output of `uname`)
+pub struct KernelVersionInformation {
+    /// The systemname/nodename
+    pub sysname: String,
+    /// The kernel release number
+    pub release: String,
+    /// The kernel version
+    pub version: String,
+    /// The machine architecture
+    pub machine: String,
+}
+
+impl KernelVersionInformation {
+    pub fn from_ostr(sysname: &OsStr, release: &OsStr, version: &OsStr, machine: &OsStr) -> Self {
+        KernelVersionInformation {
+            sysname: sysname
+                .to_os_string()
+                .into_string()
+                .unwrap_or("".to_string()),
+            release: release
+                .to_os_string()
+                .into_string()
+                .unwrap_or("".to_string()),
+            version: version
+                .to_os_string()
+                .into_string()
+                .unwrap_or("".to_string()),
+            machine: machine
+                .to_os_string()
+                .into_string()
+                .unwrap_or("".to_string()),
+        }
+    }
+
+    pub fn get_legacy(&self) -> String {
+        format!("{} {} {}", self.sysname, self.release, self.version)
+    }
+}
 
 #[api]
 #[derive(Serialize, Deserialize, Default)]
@@ -103,7 +146,9 @@ pub struct NodeStatus {
     pub uptime: u64,
     /// Load for 1, 5 and 15 minutes.
     pub loadavg: [f64; 3],
-    /// The current kernel version.
+    /// The current kernel version (NEW struct type).
+    pub current_kernel: KernelVersionInformation,
+    /// The current kernel version (LEGACY string type).
     pub kversion: String,
     /// Total CPU usage since last query.
     pub cpu: f64,
diff --git a/src/api2/node/status.rs b/src/api2/node/status.rs
index 7cbf9cd6..92273515 100644
--- a/src/api2/node/status.rs
+++ b/src/api2/node/status.rs
@@ -1,4 +1,3 @@
-use std::os::unix::ffi::OsStrExt;
 use std::process::Command;
 
 use anyhow::{bail, format_err, Error};
@@ -11,8 +10,8 @@ use proxmox_router::{ApiMethod, Permission, Router, RpcEnvironment};
 use proxmox_schema::api;
 
 use pbs_api_types::{
-    BootModeInformation, NodePowerCommand, StorageStatus, NODE_SCHEMA, PRIV_SYS_AUDIT,
-    PRIV_SYS_POWER_MANAGEMENT,
+    BootModeInformation, KernelVersionInformation, NodePowerCommand, StorageStatus, NODE_SCHEMA,
+    PRIV_SYS_AUDIT, PRIV_SYS_POWER_MANAGEMENT,
 };
 
 use pbs_api_types::{
@@ -80,11 +79,11 @@ async fn get_status(
     let cpuinfo = procfs_to_node_cpu_info(cpuinfo);
 
     let uname = nix::sys::utsname::uname()?;
-    let kversion = format!(
-        "{} {} {}",
-        std::str::from_utf8(uname.sysname().as_bytes())?,
-        std::str::from_utf8(uname.release().as_bytes())?,
-        std::str::from_utf8(uname.version().as_bytes())?
+    let kernel_version = KernelVersionInformation::from_ostr(
+        uname.sysname(),
+        uname.release(),
+        uname.version(),
+        uname.machine(),
     );
 
     let disk = crate::tools::fs::fs_info_static(proxmox_lang::c_str!("/")).await?;
@@ -101,7 +100,8 @@ async fn get_status(
         },
         uptime: procfs::read_proc_uptime()?.0 as u64,
         loadavg,
-        kversion,
+        kversion: kernel_version.get_legacy(),
+        current_kernel: kernel_version,
         cpuinfo,
         cpu,
         wait,
diff --git a/www/panel/NodeInfo.js b/www/panel/NodeInfo.js
index 14f84a2e..b1e4ece2 100644
--- a/www/panel/NodeInfo.js
+++ b/www/panel/NodeInfo.js
@@ -140,11 +140,20 @@ Ext.define('PBS.NodeInfoPanel', {
 	    value: '',
 	},
 	{
-	    itemId: 'kversion',
 	    colspan: 2,
 	    title: gettext('Kernel Version'),
 	    printBar: false,
-	    textField: 'kversion',
+	    // TODO: remove with next major and only use newish current-kernel textfield
+	    multiField: true,
+	    //textField: 'current-kernel',
+	    renderer: ({ data }) => {
+	        if (!data['current-kernel']) {
+	            return data.kversion;
+	        }
+                let kernel = data['current-kernel'];
+                let buildDate = kernel.version.match(/\((.+)\)\s*$/)[1] ?? 'unknown';
+                return `${kernel.sysname} ${kernel.release} (${buildDate})`;
+	    },
 	    value: '',
 	},
 	{
-- 
2.39.2