I have some sympathy with a 'Why Docker' rant, but recently I've had experiences which has modified my view. The separation from code and data has made reasoni

I have some sympathy with a 'Why Docker' rant, but recently I've had experiences which has modified my view. The separation from code and data has made reasoning about my DB upgrades (postgres, mostly) much easier. The 'Docker is great for dev, not prod' view is also one I used to favour, but it's inevitably true that what begins in dev does not stay in dev. Finally, the Dockerfile limitations led me to create my own CM tool (ShutIt) so that I could configure my stateless and complex environments into code that could easily be understood and changed by the casual dev.