nzrd: declare cloud-init metadata via smbios

nzr-api/src/config.rs

@@ -49,6 +49,7 @@ pub struct DHCPConfig {
 pub struct CloudConfig {
     pub listen_addr: String,
     pub port: u16,
+    pub http_addr: String,
     pub admin_user: String,
 }
 
@@ -113,6 +114,7 @@ impl Default for Config {
             cloud: CloudConfig {
                 listen_addr: "0.0.0.0".to_owned(),
                 port: 80,
+                http_addr: "http://192.0.2.1/".to_owned(),
                 admin_user: "admin".to_owned(),
             },
         }

nzrd/src/cmd/vm.rs

@@ -1,7 +1,7 @@
 use nzr_api::net::cidr::CidrV4;
 use nzr_virt::error::DomainError;
 use nzr_virt::xml::build::DomainBuilder;
-use nzr_virt::xml::{self, SerialType};
+use nzr_virt::xml::{self, InfoMap, SerialType, Sysinfo};
 use nzr_virt::{datasize, dom, vol};
 use tokio::sync::RwLock;
 
@@ -121,6 +121,17 @@ pub async fn new_instance(
             let pri_name = &ctx.config.storage.primary_pool;
             let sec_name = &ctx.config.storage.secondary_pool;
 
+            let smbios_info = {
+                let mut sysinfo = Sysinfo::new();
+                let mut system_map = InfoMap::new();
+                system_map.push(
+                    "serial",
+                    format!("ds=nocloud;s={}", ctx.config.cloud.http_addr),
+                );
+                sysinfo.system(system_map);
+                sysinfo
+            };
+
             let mut instdata = DomainBuilder::default()
                 .name(&args.name)
                 .memory(datasize!((args.memory) MiB))
@@ -136,6 +147,7 @@ pub async fn new_instance(
                         .qcow2()
                         .boot_order(1)
                 })
+                .smbios(smbios_info)
                 .serial_device(SerialType::Pty);
 
             // add desription, if provided