Hostname handling

live/root/usr/lib/dracut/modules.d/99agama-cmdline/agama-network-compat.sh

@@ -7,14 +7,18 @@
 
 ifcfg_to_ip() {
   local ip
-  local v="${2}",
-  local interface="$1"
   local conf_path="/etc/cmdline.d/40-agama-network.conf"
-  set --
-  while [ -n "$v" ]; do
-    set -- "$@" "${v%%,*}"
-    v=${v#*,}
-  done
+  if [ -n "$2" ]; then
+    local v="${2}",
+    local interface="$1"
+    set --
+    while [ -n "$v" ]; do
+      set -- "$@" "${v%%,*}"
+      v=${v#*,}
+    done
+  else
+    local interface="*"
+  fi
 
   ### See https://en.opensuse.org/SDB:Linuxrc#Network_Config
   # ifcfg=<interface_spec>=[try,]dhcp*,[rfc2132,]OPTION1=value1,OPTION2=value2...
@@ -83,6 +87,24 @@ ifcfg_to_ip() {
   return 0
 }
 
+parse_hostname() {
+  local hostname
+
+  hostname=$(getarg hostname=)
+
+  if [[ -n $hostname ]]; then
+    echo "${hostname}" >/etc/hostname
+  fi
+
+  if ! getargbool 1 SetHostname=; then
+    mkdir -p /run/NetworkManager/conf.d
+    echo '[main]' >/run/NetworkManager/conf.d/10-agama-hostname.conf
+    echo 'hostname-mode=none' >>/run/NetworkManager/conf.d/10-agama-hostname.conf
+  fi
+
+  return 0
+}
+
 translate_ifcfg() {
   local i
   local vlan
@@ -121,3 +143,4 @@ translate_ifcfg() {
 }
 
 translate_ifcfg
+parse_hostname

live/root/usr/lib/dracut/modules.d/99agama-cmdline/module-setup.sh

@@ -18,4 +18,5 @@ installkernel() {
 install() {
   inst_hook cmdline 99 "$moddir/agama-cmdline-conf.sh"
   inst_hook cmdline 99 "$moddir/agama-network-compat.sh"
+  inst_hook pre-pivot 99 "$moddir/save-agama-conf.sh"
 }

live/root/usr/lib/dracut/modules.d/99agama-cmdline/save-agama-conf.sh

@@ -0,0 +1,9 @@
+#! /bin/sh
+
+[ -e /dracut-state.sh ] && . /dracut-state.sh
+
+. /lib/dracut-lib.sh
+
+if [ -e /etc/hostname ]; then
+  cp /etc/hostname "$NEWROOT/etc/hostname"
+fi

live/src/agama-installer.changes

@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Wed Mar 12 17:17:08 UTC 2025 - Knut Anderssen <[email protected]>
+
+- (gh#agama-project/agama#2142)
+  - Allow to set the static hostname using the hostname kernel 
+    cmdline argument.
+  - Allow to disable the set of the hostname via DHCP using the 
+    SetHostname kernel cmdline argument.
+
 -------------------------------------------------------------------
 Tue Mar 11 16:29:40 UTC 2025 - Ladislav Slezák <[email protected]>
 

rust/agama-lib/share/examples/profile.jsonnet

@@ -56,6 +56,9 @@ local memory = agama.findByID(agama.lshw, 'memory').size;
       }
     ]
   },
+  hostname: {
+    static: 'agama',
+  },
   network: {
     connections: [
       {

rust/agama-lib/share/profile.schema.json

@@ -56,6 +56,20 @@
         }
       }
     },
+    "hostname": {
+      "title": "Hostname settings",
+      "type": "object",
+      "properties": {
+        "static": {
+          "title": "System static hostname.",
+          "type": "string"
+        },
+        "transient": {
+          "title": "System transient hostname.",
+          "type": "string"
+        }
+      }
+    },
     "software": {
       "title": "Software settings",
       "type": "object",
@@ -334,13 +348,30 @@
                     "items": {
                       "title": "List of EAP methods used",
                       "type": "string",
-                      "enum": ["leap", "md5", "tls", "peap", "ttls", "pwd", "fast"]
+                      "enum": [
+                        "leap",
+                        "md5",
+                        "tls",
+                        "peap",
+                        "ttls",
+                        "pwd",
+                        "fast"
+                      ]
                     }
                   },
                   "phase2Auth": {
                     "title": "Phase 2 inner auth method",
                     "type": "string",
-                    "enum": ["pap", "chap", "mschap", "mschapv2", "gtc", "otp", "md5", "tls"]
+                    "enum": [
+                      "pap",
+                      "chap",
+                      "mschap",
+                      "mschapv2",
+                      "gtc",
+                      "otp",
+                      "md5",
+                      "tls"
+                    ]
                   },
                   "identity": {
                     "title": "Identity string, often for example the user's login name",

rust/agama-lib/src/hostname.rs

@@ -0,0 +1,26 @@
+// Copyright (c) [2025] SUSE LLC
+//
+// All Rights Reserved.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, contact SUSE LLC.
+//
+// To contact SUSE LLC about this file by physical or electronic mail, you may
+// find current contact information at www.suse.com.
+
+//! Implements support for handling the hostname settings
+
+pub mod client;
+pub mod http_client;
+pub mod model;
+pub mod store;

rust/agama-lib/src/hostname/client.rs

@@ -0,0 +1,75 @@
+// Copyright (c) [2025] SUSE LLC
+//
+// All Rights Reserved.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, contact SUSE LLC.
+//
+// To contact SUSE LLC about this file by physical or electronic mail, you may
+// find current contact information at www.suse.com.
+
+//! Implements a client to access Hostnamed D-Bus API related to hostname management.
+
+use crate::{error::ServiceError, hostname::model::HostnameSettings, proxies::Hostname1Proxy};
+
+/// Client to connect to org.freedesktop.hostname1 DBUS API on the system bus for Hostname management.
+#[derive(Clone)]
+pub struct HostnameClient<'a> {
+    hostname_proxy: Hostname1Proxy<'a>,
+}
+
+impl<'a> HostnameClient<'a> {
+    pub async fn new() -> Result<HostnameClient<'a>, ServiceError> {
+        let connection = zbus::Connection::system().await?;
+        let hostname_proxy = Hostname1Proxy::new(&connection).await?;
+
+        Ok(Self { hostname_proxy })
+    }
+
+    pub async fn get_config(&self) -> Result<HostnameSettings, ServiceError> {
+        let hostname = self.hostname_proxy.hostname().await?;
+        let static_hostname = self.hostname_proxy.static_hostname().await?;
+
+        let settings = HostnameSettings {
+            hostname: Some(hostname),
+            static_hostname: Some(static_hostname),
+            ..Default::default()
+        };
+
+        Ok(settings)
+    }
+
+    pub async fn set_config(&self, config: &HostnameSettings) -> Result<(), ServiceError> {
+        let settings = self.get_config().await?;
+
+        // order is important as otherwise the transient hostname could not be set in case the
+        // static one is not empty
+        if let Some(config_static_hostname) = &config.static_hostname {
+            if settings.static_hostname != config.static_hostname {
+                self.hostname_proxy
+                    .set_static_hostname(config_static_hostname.as_str(), false)
+                    .await?;
+            }
+        }
+
+        if let Some(config_hostname) = &config.hostname {
+            if settings.hostname != config.hostname {
+                self.hostname_proxy
+                    .set_hostname(config_hostname.as_str(), false)
+                    .await?;
+            }
+        }
+
+        Ok(())
+    }
+}

rust/agama-lib/src/hostname/http_client.rs

@@ -0,0 +1,43 @@
+// Copyright (c) [2025] SUSE LLC
+//
+// All Rights Reserved.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, contact SUSE LLC.
+//
+// To contact SUSE LLC about this file by physical or electronic mail, you may
+// find current contact information at www.suse.com.
+
+//! Implements a client to access Agama's HTTP API related to Hostname management.
+
+use crate::base_http_client::BaseHTTPClient;
+use crate::hostname::model::HostnameSettings;
+use crate::ServiceError;
+
+pub struct HostnameHTTPClient {
+    client: BaseHTTPClient,
+}
+
+impl HostnameHTTPClient {
+    pub fn new(base: BaseHTTPClient) -> Self {
+        Self { client: base }
+    }
+
+    pub async fn get_config(&self) -> Result<HostnameSettings, ServiceError> {
+        self.client.get("/hostname/config").await
+    }
+
+    pub async fn set_config(&self, config: &HostnameSettings) -> Result<(), ServiceError> {
+        self.client.put_void("/hostname/config", config).await
+    }
+}

rust/agama-lib/src/hostname/model.rs

@@ -0,0 +1,34 @@
+// Copyright (c) [2025] SUSE LLC
+//
+// All Rights Reserved.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, contact SUSE LLC.
+//
+// To contact SUSE LLC about this file by physical or electronic mail, you may
+// find current contact information at www.suse.com.
+
+//! Implements a data model for Hostname configuration.
+
+use serde::{Deserialize, Serialize};
+
+/// Represents a Hostname
+#[derive(Clone, Debug, Serialize, Deserialize, Default, utoipa::ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct HostnameSettings {
+    #[serde(rename = "transient")]
+    pub hostname: Option<String>,
+    // empty string means removing the static hostname
+    #[serde(rename = "static")]
+    pub static_hostname: Option<String>,
+}

rust/agama-lib/src/hostname/store.rs

@@ -0,0 +1,48 @@
+// Copyright (c) [2025] SUSE LLC
+//
+// All Rights Reserved.
+//
+// This program is free software; you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 of the License, or (at your option)
+// any later version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+// more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, contact SUSE LLC.
+//
+// To contact SUSE LLC about this file by physical or electronic mail, you may
+// find current contact information at www.suse.com.
+
+//! Implements the store for the hostname settings.
+
+use crate::base_http_client::BaseHTTPClient;
+use crate::error::ServiceError;
+
+use super::http_client::HostnameHTTPClient;
+use super::model::HostnameSettings;
+
+/// Loads and stores the hostname settings from/to the HTTP service.
+pub struct HostnameStore {
+    hostname_client: HostnameHTTPClient,
+}
+
+impl HostnameStore {
+    pub fn new(client: BaseHTTPClient) -> Result<Self, ServiceError> {
+        Ok(Self {
+            hostname_client: HostnameHTTPClient::new(client),
+        })
+    }
+
+    pub async fn load(&self) -> Result<HostnameSettings, ServiceError> {
+        self.hostname_client.get_config().await
+    }
+
+    pub async fn store(&self, settings: &HostnameSettings) -> Result<(), ServiceError> {
+        self.hostname_client.set_config(settings).await
+    }
+}

rust/agama-lib/src/install_settings.rs

@@ -22,6 +22,7 @@
 //!
 //! This module implements the mechanisms to load and store the installation settings.
 use crate::bootloader::model::BootloaderSettings;
+use crate::hostname::model::HostnameSettings;
 use crate::{
     localization::LocalizationSettings, network::NetworkSettings, product::ProductSettings,
     scripts::ScriptsConfig, software::SoftwareSettings, users::UserSettings,
@@ -42,6 +43,8 @@ use std::path::Path;
 pub struct InstallSettings {
     #[serde(default)]
     pub bootloader: Option<BootloaderSettings>,
+    #[serde(default)]
+    pub hostname: Option<HostnameSettings>,
     #[serde(default, flatten)]
     pub user: Option<UserSettings>,
     #[serde(default)]