1 files changed, 111 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/system/boot/systemd/journald-upload.nix b/nixpkgs/nixos/modules/system/boot/systemd/journald-upload.nix
new file mode 100644
index 000000000000..6421e5fa486f
--- /dev/null
+++ b/nixpkgs/nixos/modules/system/boot/systemd/journald-upload.nix
@@ -0,0 +1,111 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.services.journald.upload;
+  format = pkgs.formats.systemd;
+in
+{
+  meta.maintainers = [ lib.maintainers.raitobezarius ];
+  options.services.journald.upload = {
+    enable = lib.mkEnableOption "uploading the systemd journal to a remote server";
+
+    settings = lib.mkOption {
+      default = { };
+
+      description = lib.mdDoc ''
+        Configuration for journal-upload. See {manpage}`journal-upload.conf(5)`
+        for available options.
+      '';
+
+      type = lib.types.submodule {
+        freeformType = format.type;
+
+        options.Upload = {
+          URL = lib.mkOption {
+            type = lib.types.str;
+            example = "https://192.168.1.1";
+            description = ''
+              The URL to upload the journal entries to.
+
+              See the description of `--url=` option in
+              {manpage}`systemd-journal-upload(8)` for the description of
+              possible values.
+            '';
+          };
+
+          ServerKeyFile = lib.mkOption {
+            type = with lib.types; nullOr str;
+            example = lib.literalExpression "./server-key.pem";
+            # Since systemd-journal-upload uses a DynamicUser, permissions must
+            # be done using groups
+            description = ''
+              SSL key in PEM format.
+
+              In contrary to what the name suggests, this option configures the
+              client private key sent to the remote journal server.
+
+              This key should not be world-readable, and must be readably by
+              the `systemd-journal` group.
+            '';
+            default = null;
+          };
+
+          ServerCertificateFile = lib.mkOption {
+            type = with lib.types; nullOr str;
+            example = lib.literalExpression "./server-ca.pem";
+            description = ''
+              SSL CA certificate in PEM format.
+
+              In contrary to what the name suggests, this option configures the
+              client certificate sent to the remote journal server.
+            '';
+            default = null;
+          };
+
+          TrustedCertificateFile = lib.mkOption {
+            type = with lib.types; nullOr str;
+            example = lib.literalExpression "./ca";
+            description = ''
+              SSL CA certificate.
+
+              This certificate will be used to check the remote journal HTTPS
+              server certificate.
+            '';
+            default = null;
+          };
+
+          NetworkTimeoutSec = lib.mkOption {
+            type = with lib.types; nullOr str;
+            example = "1s";
+            description = ''
+              When network connectivity to the server is lost, this option
+              configures the time to wait for the connectivity to get restored.
+
+              If the server is not reachable over the network for the
+              configured time, `systemd-journal-upload` exits. Takes a value in
+              seconds (or in other time units if suffixed with "ms", "min",
+              "h", etc). For details, see {manpage}`systemd.time(5)`.
+            '';
+            default = null;
+          };
+        };
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.additionalUpstreamSystemUnits = [ "systemd-journal-upload.service" ];
+
+    systemd.services."systemd-journal-upload" = {
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        Restart = "always";
+        # To prevent flooding the server in case the server is struggling
+        RestartSec = "3sec";
+      };
+    };
+
+    environment.etc."systemd/journal-upload.conf".source =
+      format.generate "journal-upload.conf" cfg.settings;
+  };
+}