IfState: Difference between revisions

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=== Examples ===

You can find several examples on the [https://ifstate.net/2.0/examples/ IfState website]. Some include NixOS configuration instructions, while the more complex examples are covered in detail here.

You can find several examples on the [https://ifstate.net/2.2/examples/ IfState website]. Some include NixOS configuration instructions, while the more complex examples are covered in detail here.

==== Network Namespaces (netns) ====

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systemd.services."<name>".serviceConfig.NetworkNamespacePath = "/var/run/netns/<netnsName>";

}

</syntaxhighlight>When using [~~https://nixos.wiki/wiki/NixOS_Containers~~ nixos-containers], network namespaces allow you to configure the network outside the container. This separation simplifies management and ensures the container’s network setup is independent of its internal configuration.<syntaxhighlight lang="nixos">

</syntaxhighlight>When using [[NixOS Containers|nixos-containers]], network namespaces allow you to configure the network outside the container. This separation simplifies management and ensures the container’s network setup is independent of its internal configuration.<syntaxhighlight lang="nixos">

{

containers."<name>".networkNamespace = "/var/run/netns/<netnsName>";

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{ lib, pkgs, ... }:

~~let~~

~~script = pkgs.writeScript "ifstate-udhcp-script.sh" ''~~

~~#! /bin/sh~~

~~if [ "$1" = bound ]; then~~

~~${lib.getExe' pkgs.iproute2 "ip"} address add "$ip/$mask" dev "$interface"~~

~~if [ -n "$mtu" ]; then~~

~~${lib.getExe' pkgs.iproute2 "ip"} link set mtu "$mtu" dev "$interface"~~

fi

~~if [ -n "$router" ]; then~~

~~${lib.getExe' pkgs.iproute2 "ip"} route add default via "$router" dev "$interface"~~

fi

~~'';~~

in

{

networking.ifstate = {

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Line 172:

settings = {

parameters.hooks.dhcp.script = pkgs.writeScript "ifstate-udhcp-wrapper-script.sh" ''

${lib.getExe' pkgs.busybox "udhcpc"} --quit --now -i $IFS_IFNAME -b --script ${script}

${lib.getExe' pkgs.busybox "udhcpc"} --quit --now -i $IFS_IFNAME -b --script ${pkgs.busybox}/default.script

'';

interfaces.eth1 = {

addresses = [ ];

hooks = [

{

{ name = "dhcp"; }

name = "dhcp";

}

];

link = {

@@ Line 4: / Line 4: @@
 === Examples ===
-You can find several examples on the [https://ifstate.net/2.0/examples/ IfState website]. Some include NixOS configuration instructions, while the more complex examples are covered in detail here.
+You can find several examples on the [https://ifstate.net/2.2/examples/ IfState website]. Some include NixOS configuration instructions, while the more complex examples are covered in detail here.
 ==== Network Namespaces (netns) ====
@@ Line 15: / Line 15: @@
    systemd.services."<name>".serviceConfig.NetworkNamespacePath = "/var/run/netns/<netnsName>";
 }
-</syntaxhighlight>When using [https://nixos.wiki/wiki/NixOS_Containers nixos-containers], network namespaces allow you to configure the network outside the container. This separation simplifies management and ensures the container’s network setup is independent of its internal configuration.<syntaxhighlight lang="nixos">
+</syntaxhighlight>When using [[NixOS Containers|nixos-containers]], network namespaces allow you to configure the network outside the container. This separation simplifies management and ensures the container’s network setup is independent of its internal configuration.<syntaxhighlight lang="nixos">
 {
    containers."<name>".networkNamespace = "/var/run/netns/<netnsName>";
@@ Line 167: / Line 167: @@
 <syntaxhighlight lang="nixos">
 { lib, pkgs, ... }:
-let
-  script = pkgs.writeScript "ifstate-udhcp-script.sh" ''
-    #! /bin/sh
-    if [ "$1" = bound ]; then
-      ${lib.getExe' pkgs.iproute2 "ip"} address add "$ip/$mask" dev "$interface"
-      if [ -n "$mtu" ]; then
-        ${lib.getExe' pkgs.iproute2 "ip"} link set mtu "$mtu" dev "$interface"
-      fi
-      if [ -n "$router" ]; then
-        ${lib.getExe' pkgs.iproute2 "ip"} route add default via "$router" dev "$interface"
-      fi
-    fi
-  '';
-in
 {
    networking.ifstate = {
@@ Line 186: / Line 172: @@
      settings = {
        parameters.hooks.dhcp.script = pkgs.writeScript "ifstate-udhcp-wrapper-script.sh" ''
-         ${lib.getExe' pkgs.busybox "udhcpc"} --quit --now -i $IFS_IFNAME -b --script ${script}
+         ${lib.getExe' pkgs.busybox "udhcpc"} --quit --now -i $IFS_IFNAME -b --script ${pkgs.busybox}/default.script
        '';
        interfaces.eth1 = {
          addresses = [ ];
          hooks = [
-           {
+           { name = "dhcp"; }
-            name = "dhcp";
-          }
          ];
          link = {