How to access docker database in sqlpro12/11/2023 ![]() ![]() Codification of your infrastructure: all underlying libraries and setup are handled in the Dockerfile.Easier CI/CD tooling: automated builds are trivial.Easy scaling: servers can be created and destroyed quickly to meet demand.To see why, let's look at the benefits Docker brings to the table: ![]() However, for most general workloads, the benefits don't outweigh the complications. It certainly can be done, and has some benefits to it. Largely, the answer is "not usually." Docker has come a long way since its inception, and it isn't a terrible or "wrong" idea to containerize databases anymore. With a database being the solution to the problem, is it practical to put your database in Docker? Docker-based workloads usually outsource this problem to databases. Should You Choose Docker for Your Database?ĭocker is generally not great for handling state. Usually this is solved with a service like EFS, which allows mounting to ECS containers, or with an external datastore, like a database. Many managed Docker services, like AWS's ECS, or managed Kubernetes, don't give you direct access to the underlying server, and as such you won't be able to directly make bind mount connections. In practice, using these mounts can be a bit more complicated. They're what volumes use under the hood, but they allow you to manually set the location on the host disk rather than having it managed through Docker. Then mount that volume to a target location inside the container:ĭocker run -mount source=my-volume,target=/appīind mounts are simpler. They allow you to create a volume, which is managed by Docker: Volume mounts are the preferred way of handling most scenarios. ![]() This way, you can run containers long-term without worrying about the data being lost. These allow you to mount a location on the host machine to a location in the container, which will store data even when the container shuts down. This makes running stateful workloads particularly challenging, but luckily Docker does have some tools for dealing with state: volume and bind mounts. ![]()
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