confd: augment new services container to ietf-system

This patch adds operational data support for system services. The
data is in a generic format but is intended to be able to represent
finit information (initctl) nicely.

The reason for augmenting this to ietf-system and not to
infix-services is that we consider this generic system information
which is totally disconnected from what ever services infix might
provide.

In this first state we only support pid, name, description and state.
Making the data look something like:

  "infix-system:services": {
    "service": [
      {
        "pid": 1185,
        "name": "udevd",
        "status": "running",
        "description": "Device event daemon (udev)"
      }]

Signed-off-by: Richard Alpe <[email protected]>

Author: rical

src/confd/yang/confd.inc

@@ -30,7 +30,7 @@ MODULES=(
 	"[email protected]"
 	"[email protected]"
 	"[email protected]"
-	"infix-system@2025-01-25.yang"
+	"infix-system@2025-04-29.yang"
 	"[email protected]"
 	"[email protected]"
 	"[email protected]"

src/confd/yang/confd/infix-system.yang

@@ -28,6 +28,11 @@ module infix-system {
   contact      "[email protected]";
   description  "Infix augments and deviations to ietf-system.";
 
+  revision 2025-04-29 {
+    description "Add services status.";
+    reference "internal";
+  }
+
   revision 2025-01-25 {
     description "Add DNS resolver status.";
     reference "internal";
@@ -412,6 +417,99 @@ module infix-system {
         }
       }
     }
+
+    container services {
+      description "List of monitored system services (processes)";
+      config false;
+
+      list service {
+        key "pid";
+        description "Tracked system service processes.";
+
+        leaf pid {
+          type uint32;
+          description "Process ID (PID) of the service.";
+        }
+
+        leaf name {
+          type string;
+          description "Name of the service or process.";
+        }
+
+        leaf description {
+          type string;
+          description
+            "Short description of the service.";
+        }
+
+        leaf status {
+          type enumeration {
+            enum halted {
+              description "Service is halted.";
+            }
+            enum missing {
+              description "Service files or dependencies are missing.";
+            }
+            enum crashed {
+              description "Service has crashed.";
+            }
+            enum stopped {
+              description "Service has been manually stopped.";
+            }
+            enum busy {
+              description "Service is busy.";
+            }
+            enum restart {
+              description "Service is restarting.";
+            }
+            enum conflict {
+              description "Service has a conflict preventing start.";
+            }
+            enum unknown {
+              description "Service is in an unknown state.";
+            }
+            enum done {
+              description "Service task has completed.";
+            }
+            enum failed {
+              description "Service task has failed.";
+            }
+            enum active {
+              description "Run/task type service is active.";
+            }
+            enum stopping {
+              description "Service is in the process of stopping.";
+            }
+            enum teardown {
+              description "Service is performing teardown operations.";
+            }
+            enum setup {
+              description "Service is setting up.";
+            }
+            enum cleanup {
+              description "Service is cleaning up.";
+            }
+            enum paused {
+              description "Service is paused.";
+            }
+            enum waiting {
+              description "Service is waiting for conditions.";
+            }
+            enum starting {
+              description "Service is starting.";
+            }
+            enum running {
+              description "Service is running.";
+            }
+            enum dead {
+              description "Service process is dead.";
+            }
+          }
+          description
+            "Detailed current status of the process.";
+        }
+      }
+    }
   }
 
   deviation "/sys:system/sys:hostname" {

src/confd/yang/confd/[email protected] renamed to src/confd/yang/confd/[email protected]

@@ -177,6 +177,24 @@ def add_platform(out):
 
     insert(out, "platform", platform)
 
+def add_services(out):
+    data = HOST.run_json(["initctl", "-j"], [])
+    services = []
+
+    for d in data:
+        if "pid" not in d or "status" not in d or "identity" not in d or "description" not in d:
+            continue
+
+        entry = {
+            "pid": d["pid"],
+            "name": d["identity"],
+            "status": d["status"],
+            "description": d["description"]
+        }
+        services.append(entry)
+
+    insert(out, "infix-system:services", "service", services)
+
 def add_software(out):
     software = {}
     try:
@@ -291,5 +309,6 @@ def operational():
     add_dns(out_state)
     add_clock(out_state)
     add_platform(out_state)
+    add_services(out_state)
 
     return out

src/statd/python/yanger/ietf_system.py

@@ -128,6 +128,148 @@
       "os-version": "v25.04.0-rc1-3-g8daf1571-dirty",
       "os-release": "v25.04.0-rc1-3-g8daf1571-dirty",
       "machine": "x86_64"
+    },
+    "infix-system:services": {
+      "service": [
+        {
+          "pid": 1185,
+          "name": "udevd",
+          "status": "running",
+          "description": "Device event daemon (udev)"
+        },
+        {
+          "pid": 2248,
+          "name": "dbus",
+          "status": "running",
+          "description": "D-Bus message bus daemon"
+        },
+        {
+          "pid": 3039,
+          "name": "confd",
+          "status": "running",
+          "description": "Configuration daemon"
+        },
+        {
+          "pid": 3548,
+          "name": "netopeer",
+          "status": "running",
+          "description": "NETCONF server"
+        },
+        {
+          "pid": 2249,
+          "name": "dnsmasq",
+          "status": "running",
+          "description": "DHCP/DNS proxy"
+        },
+        {
+          "pid": 3559,
+          "name": "tty:hvc0",
+          "status": "running",
+          "description": "Getty on hvc0"
+        },
+        {
+          "pid": 2340,
+          "name": "iitod",
+          "status": "running",
+          "description": "LED daemon"
+        },
+        {
+          "pid": 3560,
+          "name": "klishd",
+          "status": "running",
+          "description": "CLI backend daemon"
+        },
+        {
+          "pid": 3617,
+          "name": "mdns-alias",
+          "status": "running",
+          "description": "mDNS alias advertiser "
+        },
+        {
+          "pid": 0,
+          "name": "mstpd",
+          "status": "stopped",
+          "description": "Spanning Tree daemon"
+        },
+        {
+          "pid": 3564,
+          "name": "rauc",
+          "status": "running",
+          "description": "Software update service"
+        },
+        {
+          "pid": 0,
+          "name": "resolvconf",
+          "status": "done",
+          "description": "Update DNS configuration"
+        },
+        {
+          "pid": 3472,
+          "name": "statd",
+          "status": "running",
+          "description": "Status daemon"
+        },
+        {
+          "pid": 3653,
+          "name": "staticd",
+          "status": "running",
+          "description": "Static routing daemon"
+        },
+        {
+          "pid": 2241,
+          "name": "syslogd",
+          "status": "running",
+          "description": "System log daemon"
+        },
+        {
+          "pid": 2242,
+          "name": "watchdogd",
+          "status": "running",
+          "description": "System watchdog daemon"
+        },
+        {
+          "pid": 3587,
+          "name": "zebra",
+          "status": "running",
+          "description": "Zebra routing daemon"
+        },
+        {
+          "pid": 3616,
+          "name": "mdns",
+          "status": "running",
+          "description": "Avahi mDNS-SD daemon"
+        },
+        {
+          "pid": 3618,
+          "name": "chronyd",
+          "status": "running",
+          "description": "Chrony NTP v3/v4 daemon"
+        },
+        {
+          "pid": 3633,
+          "name": "lldpd",
+          "status": "running",
+          "description": "LLDP daemon (IEEE 802.1ab)"
+        },
+        {
+          "pid": 3635,
+          "name": "nginx",
+          "status": "running",
+          "description": "Web server"
+        },
+        {
+          "pid": 3636,
+          "name": "rousette",
+          "status": "running",
+          "description": "RESTCONF server"
+        },
+        {
+          "pid": 3641,
+          "name": "sshd",
+          "status": "running",
+          "description": "OpenSSH daemon"
+        }
+      ]
     }
   }
 }