fix openid config for gitea

TODO.md

@@ -0,0 +1,3 @@
+# TODO:
+
+- Handle dependention to the user creation for the password files

base.nix

@@ -12,7 +12,12 @@ in {
     domainName = mkOption {
       type = types.str;
       example = "example.com";
-      description = "Name of the machine, use for hostname";
+      description = "Domain of the machine, use for hostname";
+    };
+    adminEmail = mkOption {
+      type = types.str;
+      example = "example@example.com";
+      description = "Email of the admin, use for ACME and stuff";
     };
   };
   config = {
@@ -26,6 +31,9 @@ in {
   
     boot.kernelParams = [ "console=tty0" "console=ttyS0,115200"];
     services.qemuGuest.enable = true;
+
+    system.autoUpgrade.enable = true;
+    system.autoUpgrade.allowReboot = true;
   
     networking.hostName = "${cfg.name}";
   

pp-gitea.nix

@@ -12,10 +12,15 @@ in
       example = "git.example.com";
       description = "The domain of the server";
     };
-    disableRegistration = mkOption {
+    openIdEnable = mkOption {
       type = types.bool;
-      default = true;
-      description = "Must be set to `false` for the initial deployement";
+      default = false;
+      description = "If OpenId provider is setup and should be used exclusively.";
+    };
+    openIdClientName = mkOption {
+      type = types.str;
+      default = "";
+      description = "The name (id) of the openId client to use exclusively.";
     };
     customPackage = mkOption {
       type = types.package;
@@ -25,6 +30,11 @@ in
       };
       description= "The package for custom configs like theme.";
     };
+    dbPasswordFile = mkOption {
+      type = types.str;
+      default = "/etc/gitea_db_pwd";
+      description = "The file containing the database password. Be sure to secure it.";
+    };
   };
 
   config = {
@@ -33,13 +43,25 @@ in
     services.gitea.stateDir = "/var/lib/gitea"; # default value
     services.gitea.enable = true;
     services.gitea.rootUrl = "https://${cfg.domain}/";
-    services.gitea.settings.service.DISABLE_REGISTRATION = lib.mkForce cfg.disableRegistration; # Only set after initial deploy
     services.gitea.settings.session.COOKIE_SECURE = lib.mkForce true;        # Why do I need to override this???
+
+    # If true, openid users cannot create new account
+    #services.gitea.settings.service.DISABLE_REGISTRATION = lib.mkForce (!cfg.openIdEnable);
+    services.gitea.settings.service.DISABLE_REGISTRATION = lib.mkForce false;
+    services.gitea.settings.service.ALLOW_ONLY_EXTERNAL_REGISTRATION = cfg.openIdEnable;
+
     services.gitea.lfs.enable = true;
     services.gitea.domain = cfg.domain;
     # services.gitea.database.type = "postgres"; # Default is sqlite3, probably better for a small instance
-    services.gitea.database.passwordFile = "/var/lib/gitea/gitea-dbpassword";
-    networking.firewall.allowedTCPPorts = [ 3000 ];
+    services.gitea.database.passwordFile = cfg.dbPasswordFile;
+    # Set the permittions for the db file
+    system.activationScripts = {
+      giteaDbFilePermission.text = 
+      ''
+        chmod 400 ${cfg.dbPasswordFile}
+        chown ${config.services.gitea.user} ${cfg.dbPasswordFile}
+      '';
+    };
     environment.systemPackages = with pkgs; [
       gitea
     ];
@@ -57,5 +79,35 @@ in
         DESCRIPTION = "Code everywhere";
       };
     };
+  
+
+    # NGINX
+    security.acme.acceptTerms = true;
+    security.acme.defaults.email = cfgBase.adminEmail;
+    services.nginx = {
+        enable = true;
+        virtualHosts = {
+          "${cfg.domain}" = {
+            forceSSL = true;
+            enableACME = true;
+            locations."/" = {
+              proxyPass = "http://127.0.0.1:3000";
+              extraConfig = ''
+                proxy_set_header X-Forwarded-Host $host;
+                proxy_set_header X-Forwarded-Server $host;
+                proxy_set_header X-Real-IP $remote_addr;
+                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+                proxy_set_header X-Forwarded-Proto $scheme;
+                proxy_set_header Host $host;
+                proxy_pass_request_headers on;
+              '';
+            };
+            locations."/user/login" = lib.mkIf (cfg.openIdEnable) {
+              return = "301 https://$host/user/oauth2/${cfg.openIdClientName}";
+            };
+          };
+        };
+      };
+    networking.firewall.allowedTCPPorts = [ 80 443 ];
   };
 }

pp-keycloak.nix

@@ -0,0 +1,81 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  cfgBase = config.base;
+  cfg = config.services.ppKeycloak;
+in
+{
+  options.services.ppKeycloak = {
+    domain = mkOption {
+      type = types.str;
+      default = "auth.${cfgBase.domainName}";
+      example = "auth.example.com";
+      description = "The domain of the server";
+    };
+    initialAdminPassword = mkOption {
+      type = types.str;
+      description = "Change on first login, the initial password for the keycloak admin";
+    };
+    dbPasswordFile = mkOption {
+      type = types.str;
+      default = "/etc/kc_db_pwd";
+      description = "The file containing the database password. Be sure to secure it.";
+    };
+    
+  };
+
+  config = {
+    services.keycloak.enable = true;
+    services.keycloak.settings = {
+      hostname = cfg.domain;
+      http-host = "127.0.0.1";
+      http-port = 8080;
+      https-port = 8443;
+      proxy = "edge"; # TODO: change to reencrypt or passthrough
+      hostname-strict-backchannel = true;
+    };
+    services.keycloak.initialAdminPassword = cfg.initialAdminPassword;
+    services.keycloak.database.passwordFile = cfg.dbPasswordFile;
+    # Set the permittions for the db file
+    system.activationScripts = {
+      keycloakDbFilePermission.text =
+      ''
+        chmod 400 ${cfg.dbPasswordFile}
+        chown keycloak ${cfg.dbPasswordFile}
+      '';
+    };
+    services.keycloak.database.createLocally = true;
+    # TODO: enable client cert lookup: https://www.keycloak.org/server/reverseproxy#_enabling_client_certificate_lookup
+
+    # NGINX
+    security.acme.acceptTerms = true;
+    security.acme.defaults.email = cfgBase.adminEmail;
+   
+    services.nginx = {
+      enable = true;
+      virtualHosts = {
+        "${cfg.domain}" = {
+          forceSSL = true;
+          enableACME = true;
+          # TODO: reduce attack surface https://www.keycloak.org/server/reverseproxy#_enabling_client_certificate_lookup
+          locations."/" = {
+            proxyPass = "http://127.0.0.1:8080";
+            extraConfig = ''
+              proxy_buffer_size   128k;
+              proxy_buffers   4 256k;
+              proxy_busy_buffers_size   256k;
+              proxy_set_header X-Forwarded-Host $host;
+              proxy_set_header X-Forwarded-Server $host;
+              proxy_set_header X-Real-IP $remote_addr;
+              proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+              proxy_set_header X-Forwarded-Proto $scheme;
+              proxy_set_header Host $host;
+              proxy_pass_request_headers on;
+            '';
+          };
+        };
+      };
+    };
+    networking.firewall.allowedTCPPorts = [ 80 443 ];
+  };
+}