modules/common/oauth2_proxy.nix

{config, ...}: {

  sops.secrets.OAUTH2_PROXY_CLIENT_SECRET = {
    mode = "0400";
    owner = config.users.users.root.name;
    group = config.users.users.root.group;
    sopsFile = ../../secrets/oauth2_proxy.env.bin;
    format = "binary";
  };

  services.oauth2_proxy = {
    enable = true;

    keyFile = config.sops.secrets.OAUTH2_PROXY_CLIENT_SECRET.path;

    httpAddress = "http://127.0.0.255:1034";
    nginx.virtualHosts = [ "calibre.coded.codes" ];
    reverseProxy = true;

    provider = "keycloak-oidc";
    clientID = "oauth2_proxy";

    setXauthrequest = true;

    email.domains = [ "*" ];

    extraConfig = {
      oidc-issuer-url = "https://login.clicks.codes/realms/master";
      code-challenge-method = "S256";
      redis-connection-url = "unix://${config.services.redis.servers.oauth2_proxy.unixSocket}";
      session-store-type = "redis";
      cookie-csrf-per-request = "true";
      cookie-secure = "true";
      cookie-csrf-expire = "5m";
      whitelist-domain = ".clicks.codes,.coded.codes,.thecoded.prof,.starrysky.fyi,.crawling.us";
      skip-provider-button = "true";
    };
  };

  services.redis.servers.oauth2_proxy = {
    enable = true;
    user = "oauth2_proxy";
  };
}