Multiple Domains

If you need multiple domains configured for your project, Warden will now automatically route all sub-domains of the configured TRAEFIK_DOMAIN (as given when running env-init) to the Varnish/Nginx containers provided there is not a more specific rule such as for example which routes to the mailhog service.

Multiple top-level domains may also be setup by following the instructions below:

  1. Sign certificates for your new domains:

    warden sign-certificate alternate1.test
    warden sign-certificate alternate2.test
  2. Create a .warden/warden-env.yml file with the contents below (this will be additive to the docker-compose config Warden uses for the env, anything added here will be merged in, and you can see the complete config using warden env config):

    version: "3.5"
          - traefik.http.routers.${WARDEN_ENV_NAME}-varnish.rule=
              || HostRegexp(`{subdomain:.+}.alternate1.test`)
              || HostRegexp(`{subdomain:.+}.alternate2.test`)
          - traefik.http.routers.${WARDEN_ENV_NAME}-nginx.rule=
              || HostRegexp(`{subdomain:.+}.alternate1.test`)
              || HostRegexp(`{subdomain:.+}.alternate2.test`)
  3. Configure the application to handle traffic coming from each of these domains appropriately. An example on this for Magento 2 environments may be found below.

  4. Run warden env up -d to update the containers, after which each of the URLs should work as expected.

Magento 2 Run Params

When multiple domains are being used to load different stores or websites on Magento 2, the following configuration should be defined in order to set run codes and types as needed.

  1. Add a file at app/etc/stores.php with the following contents:

    use \Magento\Store\Model\StoreManager;
    $serverName = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : null;
    switch ($serverName) {
        case 'domain1.exampleproject.test':
            $runCode = 'examplecode1';
            $runType = 'website';
        case 'domain2.exampleproject.test':
            $runCode = 'examplecode2';
            $runType = 'website';
    if ((!isset($_SERVER[StoreManager::PARAM_RUN_TYPE])
            || !$_SERVER[StoreManager::PARAM_RUN_TYPE])
        && (!isset($_SERVER[StoreManager::PARAM_RUN_CODE])
            || !$_SERVER[StoreManager::PARAM_RUN_CODE])
    ) {
        $_SERVER[StoreManager::PARAM_RUN_CODE] = $runCode;
        $_SERVER[StoreManager::PARAM_RUN_TYPE] = $runType;


    The above example will not alter production site behavior given the default is to return should the HTTP_HOST value not match one of the defined case statements. This is desired as some hosting environments define run codes and types in an Nginx mapping. One may add production host names to the switch block should it be desired to use the same site switching mechanism across all environments.

  2. Then in composer.json add the file created in the previous step to the list of files which are automatically loaded by composer on each web request:

        "autoload": {
            "files": [


    This is similar to using magento-vars.php on Magento Commerce Cloud, but using composer to load the file rather than relying on Commerce Cloud magic:

  3. After editing the composer.json regenerate the auto load configuration:

    composer dump-autoload