155 lines
3.9 KiB
Nix
155 lines
3.9 KiB
Nix
{ config, pkgs, ... }:
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let
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inherit (pkgs)
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execline
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s6
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s6-init-bin
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s6-linux-init
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stdenvNoCC;
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inherit (pkgs.pseudofile) dir symlink;
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s6-rc-db = pkgs.s6-rc-database.override {
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services = builtins.attrValues config.services;
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};
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s6-init-scripts = stdenvNoCC.mkDerivation {
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name = "s6-scripts";
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src = ./scripts;
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phases = ["unpackPhase" "installPhase" ];
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buildInputs = [];
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installPhase = ''
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mkdir $out
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cp -r $src $out/scripts
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chmod -R +w $out
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'';
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};
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service = dir {
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s6-linux-init-runleveld = dir {
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notification-fd = { file = "3"; };
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run = {
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file = ''
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#!${execline}/bin/execlineb -P
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${execline}/bin/fdmove -c 2 1
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${execline}/bin/fdmove 1 3
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${s6}/bin/s6-ipcserver -1 -a 0700 -c 1 -- s
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${s6}/bin/s6-sudod -dt30000 -- "/etc/s6-linux-init/current"/scripts/runlevel
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'';
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mode = "0755";
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};
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};
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s6-linux-init-shutdownd = dir {
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fifo = {
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type = "i";
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mode = "0600";
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};
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run = {
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file = ''
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#!${execline}/bin/execlineb -P
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${s6-linux-init}/bin/s6-linux-init-shutdownd -c "/etc/s6-linux-init/current" -g 3000
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'';
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mode = "0755";
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};
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};
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s6-svscan-log = dir {
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fifo = {
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type = "i";
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mode = "0600";
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};
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notification-fd = { file = "3"; };
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run = {
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file = ''
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#!${execline}/bin/execlineb -P
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${execline}/bin/redirfd -w 1 /dev/null
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${execline}/bin/redirfd -rnb 0 fifo
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${s6}/bin/s6-log -bpd3 -- t /run/uncaught-logs
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'';
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mode = "0755";
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};
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};
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getty = dir {
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run = {
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file = ''
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#!${execline}/bin/execlineb -P
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/bin/getty -l /bin/login 115200 /dev/console
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'';
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mode = "0755";
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};
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};
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".s6-svscan" =
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let
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quit = message: ''
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#!${execline}/bin/execlineb -P
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${execline}/bin/redirfd -w 2 /dev/console
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${execline}/bin/fdmove -c 1 2
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${execline}/bin/foreground { ${s6-linux-init}/bin/s6-linux-init-echo -- ${message} }
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${s6-linux-init}/bin/s6-linux-init-hpr -fr
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'';
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shutdown = action: ''
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#!${execline}/bin/execlineb -P
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${s6-linux-init}/bin/s6-linux-init-hpr -a #{action} -- now
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'';
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empty = "#!${execline}/bin/execlineb -P\n";
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in dir {
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crash = {
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file = quit "s6-svscan crashed. Rebooting.";
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mode = "0755";
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};
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finish = {
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file = quit "s6-svscan exited. Rebooting.";
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mode = "0755";
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};
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SIGINT = {
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file = shutdown "-r";
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mode = "0755";
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};
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SIGPWR = {
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file = shutdown "-p";
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mode = "0755";
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};
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SIGQUIT = {
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file = empty;
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mode = "0755";
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};
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SIGTERM = {
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file = empty;
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mode = "0755";
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};
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SIGUSR1 = {
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file = shutdown "-p";
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mode = "0755";
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};
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SIGUSR2 = {
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file = shutdown "-h";
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mode = "0755";
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};
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SIGWINCH = {
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file = empty;
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mode = "0755";
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};
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};
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};
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in {
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config = {
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programs.busybox.applets = [ "login" "getty" ];
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filesystem = dir {
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etc = dir {
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s6-rc = dir {
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compiled = symlink "${s6-rc-db}/compiled";
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};
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s6-linux-init = dir {
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current = dir {
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scripts = symlink "${s6-init-scripts}/scripts";
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env = dir {};
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run-image = dir {
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uncaught-logs = (dir {}) // {mode = "2750";};
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inherit service;
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};
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};
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};
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};
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bin = dir {
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init = symlink "${s6-init-bin}/bin/init";
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};
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};
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};
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}
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