I believe Docker was always called Docker, but it grew directly out of the previous generation of the technology used by dotCloud (the company Solomon founded), which was using LXC with AUFS.
I think the breakthrough with Docker was bundling the AUFS-based image layer format with a centralized container image sharing registry. This was revolutionary at the time. But another huge element of success was Solomon and others evangelizing the technology relentlessly at meetups and conferences. I distinctly remember attending a demo in 2012 where the crowd was very excited to see the Docker workflow that we now take for granted, in large part because Solomon was so good at presenting it. At the time, I was working at a cloud PaaS company where we developed a similar technology on top of LXC and BTRFS (but no image registry). Docker really made me think hard about what we were doing, although I didn't end up making any moves.
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I believe Docker was always called Docker, but it grew directly out of the previous generation of the technology used by dotCloud (the company Solomon founded), which was using LXC with AUFS.
I think the breakthrough with Docker was bundling the AUFS-based image layer format with a centralized container image sharing registry. This was revolutionary at the time. But another huge element of success was Solomon and others evangelizing the technology relentlessly at meetups and conferences. I distinctly remember attending a demo in 2012 where the crowd was very excited to see the Docker workflow that we now take for granted, in large part because Solomon was so good at presenting it. At the time, I was working at a cloud PaaS company where we developed a similar technology on top of LXC and BTRFS (but no image registry). Docker really made me think hard about what we were doing, although I didn't end up making any moves.
https://jpetazzo.github.io/2017/02/24/from-dotcloud-to-docke...