nixos/invoiceplane: add nginx as a webserver option for invoiceplane

Getting the vhost to play nice with phpfpm was done by following this
community post: https://community.invoiceplane.com/t/topic/2654

nixos/modules/services/web-apps/invoiceplane.nix

@@ -252,11 +252,11 @@ in
         };
 
         options.webserver = mkOption {
-          type = types.enum [ "caddy" ];
+          type = types.enum [ "caddy" "nginx" ];
           default = "caddy";
+          example = "nginx";
           description = lib.mdDoc ''
-            Which webserver to use for virtual host management. Currently only
+            Which webserver to use for virtual host management.
-            caddy is supported.
           '';
         };
       };
@@ -390,5 +390,39 @@ in
     };
   })
 
+  (mkIf (cfg.webserver == "nginx") {
+    services.nginx = {
+      enable = true;
+      virtualHosts = mapAttrs' (hostName: cfg: (
+        nameValuePair hostName {
+          root = pkg hostName cfg;
+          extraConfig = ''
+            index index.php index.html index.htm;
+
+            if (!-e $request_filename){
+              rewrite ^(.*)$ /index.php break;
+            }
+          '';
+
+          locations = {
+            "/setup".extraConfig = ''
+              rewrite ^(.*)$ http://${hostName}/ redirect;
+            '';
+
+            "~ .php$" = {
+              extraConfig = ''
+                fastcgi_split_path_info ^(.+\.php)(/.+)$;
+                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+                fastcgi_pass unix:${config.services.phpfpm.pools."invoiceplane-${hostName}".socket};
+                include ${config.services.nginx.package}/conf/fastcgi_params;
+                include ${config.services.nginx.package}/conf/fastcgi.conf;
+              '';
+            };
+          };
+        }
+      )) eachSite;
+    };
+  })
+
   ]);
 }

nixos/tests/invoiceplane.nix

@@ -27,17 +27,41 @@ import ./make-test-python.nix ({ pkgs, ... }:
       networking.firewall.allowedTCPPorts = [ 80 ];
       networking.hosts."127.0.0.1" = [ "site1.local" "site2.local" ];
     };
+
+    invoiceplane_nginx = { ... }: {
+      services.invoiceplane.webserver = "nginx";
+      services.invoiceplane.sites = {
+        "site1.local" = {
+          database.name = "invoiceplane1";
+          database.createLocally = true;
+          enable = true;
+        };
+        "site2.local" = {
+          database.name = "invoiceplane2";
+          database.createLocally = true;
+          enable = true;
+        };
+      };
+
+      networking.firewall.allowedTCPPorts = [ 80 ];
+      networking.hosts."127.0.0.1" = [ "site1.local" "site2.local" ];
+    };
   };
 
   testScript = ''
     start_all()
 
     invoiceplane_caddy.wait_for_unit("caddy")
-    invoiceplane_caddy.wait_for_open_port(80)
+    invoiceplane_nginx.wait_for_unit("nginx")
-    invoiceplane_caddy.wait_for_open_port(3306)
 
     site_names = ["site1.local", "site2.local"]
 
+    machines = [invoiceplane_caddy, invoiceplane_nginx]
+
+    for machine in machines:
+      machine.wait_for_open_port(80)
+      machine.wait_for_open_port(3306)
+
       for site_name in site_names:
           machine.wait_for_unit(f"phpfpm-invoiceplane-{site_name}")