hosts/plover: delete Keycloak service entirely

It is now completely replaced with Kanidm.

hosts/plover/modules/services/keycloak.nix

@@ -1,133 +0,0 @@
-# Centralizing them signing in to web applications (plus LDAP).
-{ config, lib, pkgs, ... }:
-
-let
-  inherit (import ../hardware/networks.nix) interfaces;
-
-  authDomain = "auth.${config.networking.domain}";
-  authInternalDomain = "auth.${config.networking.fqdn}";
-
-  # This is also set on our own.
-  keycloakUser = config.services.keycloak.database.username;
-  keycloakDbName = if config.services.keycloak.database.createLocally then keycloakUser else config.services.keycloak.database.username;
-
-  # This is for access to PostgreSQL database.
-  postgresUser = config.users.groups.postgres.name;
-
-  certs = config.security.acme.certs;
-  host = "localhost";
-in
-{
-  sops.secrets = lib.getSecrets ../../secrets/secrets.yaml {
-    "keycloak/db/password".owner = postgresUser;
-  };
-
-  # Hey, the hub for your application sign-in.
-  services.keycloak = {
-    enable = true;
-
-    # Pls change at first login. Or just change it through `kcadm.sh`.
-    initialAdminPassword = "wow what is this thing";
-
-    database = {
-      type = "postgresql";
-      createLocally = true;
-      passwordFile = config.sops.secrets."keycloak/db/password".path;
-    };
-
-    settings = {
-      inherit host;
-
-      db-schema = keycloakDbName;
-
-      http-enabled = true;
-      http-port = 8759;
-      https-port = 8760;
-
-      hostname = authDomain;
-      hostname-strict-backchannel = true;
-      proxy = "passthrough";
-    };
-
-    sslCertificate = "${certs."${authDomain}".directory}/fullchain.pem";
-    sslCertificateKey = "${certs."${authDomain}".directory}/key.pem";
-  };
-
-  # Configuring the database of choice to play nicely with the service.
-  services.postgresql = {
-    ensureDatabases = [ keycloakDbName ];
-    ensureUsers = [
-      {
-        name = keycloakUser;
-        ensurePermissions = {
-          "DATABASE ${keycloakDbName}" = "ALL PRIVILEGES";
-          "SCHEMA ${keycloakDbName}" = "ALL PRIVILEGES";
-        };
-      }
-    ];
-  };
-
-  # Modifying it a little bit for per-user schema.
-  systemd.services.keycloak = {
-    preStart =
-      let
-        psqlBin = "${lib.getBin config.services.postgresql.package}/bin/psql";
-      in
-      lib.mkAfter ''
-        # Setting up the appropriate schema for PostgreSQL secure schema usage.
-        ${psqlBin} -tAc "SELECT 1 FROM information_schema.schemata WHERE schema_name='${keycloakUser}';" \
-          | grep -q 1 || ${psqlBin} -tAc "CREATE SCHEMA IF NOT EXISTS AUTHORIZATION ${keycloakUser};"
-      '';
-  };
-
-  # Attaching it to the reverse proxy of choice.
-  services.nginx.virtualHosts = {
-    "${authDomain}" = {
-      forceSSL = true;
-      enableACME = true;
-      acmeRoot = null;
-
-      # This is based from the reverse proxy guide from the official
-      # documentation at https://www.keycloak.org/server/reverseproxy.
-      locations =
-        let
-          keycloakPath = path: "http://${host}:${toString config.services.keycloak.settings.http-port}";
-        in
-        lib.listToAttrs
-          (lib.lists.map
-            (appPath: lib.nameValuePair appPath { proxyPass = keycloakPath appPath; })
-            [ "/js/" "/realms/" "/resources/" "/robots.txt" ])
-        // { "/".return = "444"; };
-    };
-
-    "${authInternalDomain}" = {
-      locations."/" = {
-        proxyPass = "http://${host}:${toString config.services.keycloak.settings.http-port}";
-      };
-    };
-  };
-
-  # Configuring fail2ban for this services which is only present as a neat
-  # little hint from its server administration guide.
-  services.fail2ban.jails = {
-    keycloak.settings = {
-      enabled = true;
-      backend = "systemd";
-      filter = "keycloak[journalmatch='_SYSTEMD_UNIT=keycloak.service']";
-      maxretry = 3;
-    };
-  };
-
-  environment.etc = {
-    "fail2ban/filter.d/keycloak.conf".text = ''
-      [Includes]
-      before = common.conf
-
-      # This is based from the server administration guide at
-      # https://www.keycloak.org/docs/$VERSION/server_admin/index.html.
-      [Definition]
-      failregex = ^.*type=LOGIN_ERROR.*ipAddress=<HOST>.*$
-      ignoreregex =
-    '';
-  };
-}