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add config environment.etc which gets converted to pseudofiles

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This commit is contained in:
Daniel Barlow 2022-09-26 20:45:00 +01:00
parent 09a9dba963
commit bd6cbd373f
2 changed files with 24 additions and 8 deletions
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19
make-image.nix
View file

@ -5,6 +5,7 @@
, callPackage , callPackage
, execline , execline
, lib , lib
, pseudofile
, runCommand , runCommand
, s6-init-bin , s6-init-bin
, s6-init-files , s6-init-files
@ -20,11 +21,6 @@ let
services = builtins.attrValues config.services; services = builtins.attrValues config.services;
}; };
profile = writeScript ".profile" ''
PATH=${lib.makeBinPath ([ s6-init-bin busybox execline s6-linux-init s6-rc])}
export PATH
'';
pseudofiles = writeText "pseudofiles" '' pseudofiles = writeText "pseudofiles" ''
/ d 0755 0 0 / d 0755 0 0
/bin d 0755 0 0 /bin d 0755 0 0
@ -49,12 +45,19 @@ let
/etc/s6-rc d 0755 0 0 /etc/s6-rc d 0755 0 0
/etc/s6-rc/compiled s 0755 0 0 ${s6-rc-db}/compiled /etc/s6-rc/compiled s 0755 0 0 ${s6-rc-db}/compiled
/etc/passwd f 0644 0 0 echo "root::0:0:root:/:/bin/sh" /etc/passwd f 0644 0 0 echo "root::0:0:root:/:/bin/sh"
/.profile s 0644 0 0 ${profile}
''; '';
config-pseudofiles = pseudofile.write "config.etc"
(config.environment.contents);
storefs = callPackage <nixpkgs/nixos/lib/make-squashfs.nix> { storefs = callPackage <nixpkgs/nixos/lib/make-squashfs.nix> {
# add pseudofiles to store so that the packages they # add pseudofiles to store so that the packages they
# depend on are also added # depend on are also added
storeContents = [ pseudofiles s6-init-files ] ++ config.packages ; storeContents = [
pseudofiles
s6-init-files
config-pseudofiles
] ++ config.packages ;
}; };
in runCommand "frob-squashfs" { in runCommand "frob-squashfs" {
nativeBuildInputs = with buildPackages; [ squashfsTools qprint ]; nativeBuildInputs = with buildPackages; [ squashfsTools qprint ];
@ -62,6 +65,6 @@ in runCommand "frob-squashfs" {
cp ${storefs} ./store.img cp ${storefs} ./store.img
chmod +w store.img chmod +w store.img
mksquashfs - store.img -no-recovery -quiet -no-progress -root-becomes store -p "/ d 0755 0 0" mksquashfs - store.img -no-recovery -quiet -no-progress -root-becomes store -p "/ d 0755 0 0"
mksquashfs - store.img -no-recovery -quiet -no-progress -root-becomes nix -pf ${pseudofiles} -pf ${s6-init-files} mksquashfs - store.img -no-recovery -quiet -no-progress -root-becomes nix -pf ${pseudofiles} -pf ${s6-init-files} -pf ${config-pseudofiles}
cp store.img $out cp store.img $out
'' ''

13
modules/base.nix
View file

@ -17,6 +17,7 @@ in {
services = mkOption { services = mkOption {
type = types.attrsOf type_service; type = types.attrsOf type_service;
}; };
environment = mkOption { type = types.anything; };
kernel = { kernel = {
config = mkOption { config = mkOption {
# mostly the values are y n or m, but sometimes # mostly the values are y n or m, but sometimes
@ -28,4 +29,16 @@ in {
}; };
}; };
}; };
config = {
environment = dir {
etc = dir {
profile = symlink
(pkgs.writeScript ".profile" ''
PATH=${lib.makeBinPath (with pkgs; [ s6-init-bin busybox execline s6-linux-init s6-rc])}
export PATH
'');
};
};
};
} }