Docker allows us to build, run, pull, push or inspect container images, but for each of these tasks there are other alternative tools, which might just do better job at it than Docker. So, let’s explore the landscape and (just maybe) uninstall and forget about Docker altogether
In the ancient times of containers (really more like 4 years ago) Docker was the only player in the container game. That’s not the case anymore though and Docker is not the only, but rather just another container engine on the landscape. Docker allows us to build, run, pull, push or inspect container images, but for each of these tasks there are other alternative tools, which might just do better job at it than Docker. So, let’s explore the landscape and (just maybe) uninstall and forget about Docker altogether…
If you’ve been a docker user for long time, I think it will take some persuading for you to even consider to switch to different tooling. So, here goes:
First of all, Docker is a monolithic tool. It’s a tool that tries to do everything, which generally is not the best approach. Most of the time it’s better to choose a specialized tool that does just one thing, but does it really well.
If you are scared of switching to different set of tools, because you would have to learn to work with different CLI, different API or in general different concepts, then that won’t be a problem. Choosing any of the tools shown in this article can be completely seamless as they all (including Docker) adhere to same specification under OCI, which is short for Open Container Initiative. This initiative contains specifications for container runtime, container distribution and container images, which covers all the features needed for working with containers.
Thanks to the OCI you can choose a set of tools that best suit your needs and at the same time you can still enjoy using the same APIs and same CLI commands as with Docker.
So, if you’re open to trying out new tools, then let’s compare the advantages, disadvantages and features of Docker and it’s competitors to see whether it actually makes sense to even consider ditching Docker for some new shiny tool.
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