private NetworkConfig networkConfiguration() {
        NetworkConfig config = new NetworkConfig("custom_network");
        config.addAlias("net-alias");
        return config;
    }
This test need to be refactored. In fact, testing Mojos must be setup correctly at all. Blame on me that there are so
few tests ...
src/test/java/io/fabric8/maven/docker/service/RunServiceTest.java