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authortv <tv@krebsco.de>2021-01-25 11:28:26 +0100
committertv <tv@krebsco.de>2021-01-25 11:28:26 +0100
commita0ca091cbf4e9ca41390ad9d54844c9eb2660406 (patch)
treeaae89f223f953a81da400d6f7deac1d5ae5d240e /krebs/3modules/bindfs.nix
parent1cd73df0c8694f491d40f93a796ea58f150e88dc (diff)
parent71206dc6a2852dd69664e85aa6dcb49676ec1f6e (diff)
Merge remote-tracking branch 'prism/master'
Diffstat (limited to 'krebs/3modules/bindfs.nix')
-rw-r--r--krebs/3modules/bindfs.nix61
1 files changed, 61 insertions, 0 deletions
diff --git a/krebs/3modules/bindfs.nix b/krebs/3modules/bindfs.nix
new file mode 100644
index 000000000..7e3730e86
--- /dev/null
+++ b/krebs/3modules/bindfs.nix
@@ -0,0 +1,61 @@
+with import <stockholm/lib>;
+{ config, pkgs, ... }:
+let
+ cfg = config.krebs.bindfs;
+in {
+ options.krebs.bindfs = mkOption {
+ type = types.attrsOf (types.submodule ({ config, ... }: {
+ options = {
+ target = mkOption {
+ description = ''
+ destination where bindfs mounts to.
+ second positional argument to bindfs.
+ '';
+ default = config._module.args.name;
+ type = types.absolute-pathname;
+ };
+ source = mkOption {
+ description = ''
+ source folder where the mounted directory is originally.
+ first positional argument to bindfs.
+ '';
+ type = types.absolute-pathname;
+ };
+ options = mkOption {
+ description = ''
+ additional arguments to bindfs
+ '';
+ type = types.listOf types.str;
+ default = [];
+ };
+ clearTarget = mkOption {
+ description = ''
+ whether to clear the target folder before mounting
+ '';
+ type = types.bool;
+ default = false;
+ };
+ };
+ }));
+ default = {};
+ };
+
+ config = mkIf (cfg != {}) {
+ systemd.services = mapAttrs' (n: mount: let
+ name = replaceStrings [ "/" ] [ "_" ] n;
+ in nameValuePair "bindfs-${name}" {
+ wantedBy = [ "local-fs.target" ];
+ path = [ pkgs.coreutils ];
+ serviceConfig = {
+ ExecStartPre = pkgs.writeDash "bindfs-init-${name}" ''
+ ${optionalString mount.clearTarget ''
+ rm -rf '${mount.target}'
+ ''}
+ mkdir -p '${mount.source}'
+ mkdir -p '${mount.target}'
+ '';
+ ExecStart = "${pkgs.bindfs}/bin/bindfs -f ${concatStringsSep " " mount.options} ${mount.source} ${mount.target}";
+ };
+ }) cfg;
+ };
+}