improve nginx logging

nixos/machines/robi/configuration.nix

@@ -1,6 +1,7 @@
 { lib, config, pkgs, ... }: {
   imports = [
 
+    ../../system/all/nginx.nix
     ../../system/all/borg-jobs.nix
     ../../system/all/defaults.nix
     ../../system/all/syncthing.nix

nixos/machines/robi/nginx.nix

@@ -108,23 +108,6 @@ in
         };
       };
 
-      # "stable-diffusion.ingolf-wagner.de" = {
-      #   forceSSL = true;
-      #   enableACME = true;
-      #   extraConfig = error.extraConfig;
-      #   root = "/srv/www/stable-diffusion";
-      #   locations = {
-      #     "/model-v1-4.ckpt" = {
-      #       basicAuthFile = "${private_assets}/stable-diffusion-htpasswd";
-      #       tryFiles = "/stable-diffusion-v-1-4-original/sd-v1-4.ckpt =404";
-      #     };
-      #     #"/model-v1-3.ckpt" = {
-      #     #  basicAuthFile = "${private_assets}/stable-diffusion-htpasswd";
-      #     #  tryFiles = "stable-diffusion-v-1-3-original/sd-v1-3.ckpt";
-      #     #};
-      #   } // error.locations;
-      # };
-
       "travel.ingolf-wagner.de" = {
         forceSSL = true;
         enableACME = true;

nixos/system/all/nginx.nix

@@ -1,7 +1,7 @@
 { pkgs, lib, ... }:
 let
-  access_log_sink = "workhorse.private:12304";
-  error_log_sink = "workhorse.private:12305";
+  access_log_sink = "<server>:<port>";
+  error_log_sink = "<server>:<port>";
 in
 {
 
@@ -16,6 +16,32 @@ in
     recommendedProxySettings = lib.mkDefault true;
     recommendedTlsSettings = lib.mkDefault true;
 
+    # for loki logging
+    commonHttpConfig = ''
+      log_format logfmt escape=json 'timestamp=$time_iso8601 '
+        'facility=nginx '
+        'src_addr=$remote_addr '
+        'body_bytes_sent=$body_bytes_sent '
+        'request_time=$request_time '
+        'response_status=$status '
+        'request="$request" '
+        'request_method="$request_method" '
+        'host="$host" '
+        'upstream_cache_status="$upstream_cache_status" '
+        'upstream_addr="$upstream_addr" '
+        'http_x_forwarded_for="$http_x_forwarded_for" '
+        'http_referrer="$http_referer" '
+        'http_user_agent="$http_user_agent"';
+
+      # log to local journald
+      access_log syslog:server=unix:/dev/log logfmt;
+
+      # to send logs somewhere
+      #access_log syslog:server=${access_log_sink} logfmt;
+      #error_log syslog:server=${error_log_sink};
+    '';
+
+
     # for graylog logging
     #commonHttpConfig = ''
     #  log_format graylog2_json escape=json '{ "timestamp": "$time_iso8601", '