From the course: Docker Essential Training
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Introduction to container storage - Docker Tutorial
From the course: Docker Essential Training
Introduction to container storage
- [Instructor] We've learned quite a bit about containers so far. Up until now, we've seen how to put applications into container images and start containers from them. We also learned about how container run times use control groups and namespaces to isolate these apps in their environments from each other. We even learned how to create Docker containers within Docker containers. How cool is that? However, there's one thing that almost every app has in common that we haven't talked about. At some point, most apps will need to store data somewhere. What happens then? You might recall from our container image deep dives that the file systems presented to containers are an overlay file system behind the scenes. These overlay file systems combine the read only files within the layers of the container's image, and a read/write layer into a single unified system for the container to use. However, union file systems don't last…
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