No, that's not all it does, though you can certainly use it to do that. This service runs a series of build steps on your source. It's an arbitrary execution e

No, that's not all it does, though you can certainly use it to do that. This service runs a series of build steps on your source. It's an arbitrary execution engine with container building dressing on top (UI, CLI, etc). One of the build steps might do 'docker build'. In fact, most of the build steps that GCCB has executed do just that! But it's not limited. You can provide container images for custom build steps to do whatever you like in a repeatable, automated fashion.