From 7219292dd59e22d94ec9d2a204a841cb44da0daa Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Fri, 24 Dec 2021 00:47:41 +0100
Subject: repo-sync: use LoadCredential

---
 krebs/3modules/repo-sync.nix | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/krebs/3modules/repo-sync.nix b/krebs/3modules/repo-sync.nix
index 488cc4dd..c4cfb9a4 100644
--- a/krebs/3modules/repo-sync.nix
+++ b/krebs/3modules/repo-sync.nix
@@ -122,13 +122,9 @@ let
     };
 
     privateKeyFile = mkOption {
-      type = types.secret-file;
-      default = {
-        name = "repo-sync-key";
-        path = "${cfg.stateDir}/ssh.priv";
-        owner = cfg.user;
-        source-path = toString <secrets> + "/repo-sync.ssh.key";
-      };
+      type = types.absolute-pathname;
+      default = toString <secrets> + "/repo-sync.ssh.key";
+      defaultText = "‹secrets/repo-sync.ssh.key›";
     };
 
     unitConfig = mkOption {
@@ -144,7 +140,6 @@ let
   };
 
   imp = {
-    krebs.secret.files.repo-sync-key = cfg.privateKeyFile;
     users.users.${cfg.user.name} = {
       inherit (cfg.user) home name uid;
       createHome = true;
@@ -163,6 +158,10 @@ let
       }
     ) cfg.repos;
 
+    krebs.systemd.services = mapAttrs' (name: _:
+      nameValuePair "repo-sync-${name}" {}
+    ) cfg.repos;
+
     systemd.services = mapAttrs' (name: repo:
       let
         repo-sync-config = pkgs.writeJSON "repo-sync-config-${name}.json"
@@ -171,16 +170,10 @@ let
           });
       in nameValuePair "repo-sync-${name}" {
         description = "repo-sync";
-        after = [
-          config.krebs.secret.files.repo-sync-key.service
-          "network.target"
-        ];
-        partOf = [
-          config.krebs.secret.files.repo-sync-key.service
-        ];
+        after = [ "network.target" ];
 
         environment = {
-          GIT_SSH_COMMAND = "${pkgs.openssh}/bin/ssh -i ${cfg.privateKeyFile.path}";
+          GIT_SSH_COMMAND = "${pkgs.openssh}/bin/ssh -i $CREDENTIALS_DIRECTORY/ssh_key";
           REPONAME = "${name}.git";
         };
 
@@ -188,6 +181,7 @@ let
         serviceConfig = {
           Type = "simple";
           PermissionsStartOnly = true;
+          LoadCredential = "ssh_key:${cfg.privateKeyFile}";
           ExecStart = "${pkgs.repo-sync}/bin/repo-sync ${repo-sync-config}";
           WorkingDirectory = cfg.stateDir;
           User = "repo-sync";
-- 
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