Re: And the knock on effect....
Will customers think long and hard about investing in solutions that are only going to be available in docker containers?
Once you defined a deployment with all the external libraries, cluster configurations, jdbc and socket connections to DBs and other services and you eventually defined a complex system with a lot of machines involved, you are reluctant to change everything regardless of whether you are using Dockers or not. I don't think that Dockers itself might be the bigger obstacle to future migrations.