public InfluxDBContainer<SELF> withAdmin(final String admin) {
        this.admin = admin;
        return this.self();
    }
Sets the admin user

@param admin The name of the admin user to be created. If this is unset, no admin user is created.
@return a reference to this container instance
modules/influxdb/src/main/java/org/testcontainers/containers/InfluxDBContainer.java