prometheus for dibbler

hosts/ildkule/services/monitoring/prometheus/dibbler.nix

@@ -80,12 +80,17 @@ in
     LoadCredential = "postgresql_dibbler_password:${
       config.sops.secrets."config/postgresql_dibbler_password".path
     }";
-    ExecStartPre = ''/bin/sh -c '${lib.getExe' pkgs.coreutils "cat"} ${configFile} | ${lib.getExe' pkgs.jq "jq"} -c \".jobs[0].connections[0]=\\\"postgres://pvv_vv:$(${lib.getExe' pkgs.coreutils "cat"} %d/postgresql_dibbler_password)@postgres.pvv.ntnu.no\\\"\" > /run/prometheus-sql-exporter/config.yaml' '';
-    ExecStart = lib.mkForce ''
-      ${pkgs.prometheus-sql-exporter}/bin/sql_exporter \
-        -web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
-        -config.file /run/prometheus-sql-exporter/config.yaml \
-        ${lib.concatStringsSep " \\\n  " cfg.extraFlags}
+    ExecStartPre = ''
+      |${lib.getExe pkgs.jq} \
+      --null-input \
+      --compact-output \
+      --slurpfile config '${configFile}' \
+      --rawfile pw '%d/postgresql_dibbler_password' \
+      --from-file '${pkgs.writeText "prometheus-sql-exec-start-jq-filter" ''
+        ("postgres://pvv_vv:\($pw | gsub("\n"; ""))@postgres.pvv.ntnu.no") as $pg_uri
+        | $config[0]
+        | .jobs[0].connections[0] = $pg_uri
+      ''}' > /run/prometheus-sql-exporter/config.yaml
     '';
   };
 }