feat(hostd): varlink interfaced host controller to manage machine configuration and boot mgmt

hostd/src/main.rs

@@ -1,24 +1,30 @@
 use anyhow::Result;
 
-use internal::ipc::patagia::io_patagia_hostd::{
-    Call_Apply, Call_Describe, Machine, VarlinkInterface,
-};
+use internal::ipc::patagia::io_patagia_hostd;
+use internal::ipc::systemd::io_systemd_hostname::{self, VarlinkClientInterface};
 
 const LISTEN_ADDRESS: &str = "unix:/tmp/patagia/io.patagia.hostd";
 
 struct PatagiaHostd;
 
-impl VarlinkInterface for PatagiaHostd {
-    fn apply(&self, call: &mut dyn Call_Apply, machine: Machine) -> varlink::Result<()> {
+impl io_patagia_hostd::VarlinkInterface for PatagiaHostd {
+    fn apply(
+        &self,
+        call: &mut dyn io_patagia_hostd::Call_Apply,
+        machine: io_patagia_hostd::Machine,
+    ) -> varlink::Result<()> {
         // FIXME: Do something useful
         println!("Applying machine config: {:#?}", machine);
         call.reply()
     }
 
-    fn describe(&self, call: &mut dyn Call_Describe) -> varlink::Result<()> {
-        // FIXME: Do something useful
-        let machine = Machine {
-            machineId: "123456789".to_string(),
+    fn describe(&self, call: &mut dyn io_patagia_hostd::Call_Describe) -> varlink::Result<()> {
+        let conn =
+            varlink::Connection::with_address("unix:/run/systemd/io.systemd.Hostname").unwrap();
+        let mut sd = io_systemd_hostname::VarlinkClient::new(conn);
+
+        let machine = io_patagia_hostd::Machine {
+            machineId: sd.describe().call().unwrap().MachineID,
             nodeLabels: None,
             patagiaAgent: None,
         };
@@ -28,7 +34,7 @@ impl VarlinkInterface for PatagiaHostd {
 
 fn main() -> Result<()> {
     let hostd = PatagiaHostd;
-    let hostd_iface = internal::ipc::patagia::io_patagia_hostd::new(Box::new(hostd));
+    let hostd_iface = io_patagia_hostd::new(Box::new(hostd));
 
     let svc = varlink::VarlinkService::new(
         "io.patagia.hostd",