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Consequently, these Linux-based containers are used to create isolated environments for hosting Virtual servers (e.g., most Virtual Private Servers deployed in VPN technology are hosted in OpenVZ containers). OpenVZ allows users to create several isolated Linux containers on a Linux server. OpenVZ from Virtuozzo is a Linux-based containerization technology similar to Docker in terms of features and functionalities, but with the capacity to do more than just application deployment. OpenVZĪnother Docker alternative on our list is OpenVZ. Because it enjoys a higher degree of compatibility therefore, you can easily switch from Docker or other container engines to Podman since Podman is OCI-compliant with support for Docker files and images. In summary, Podman is a better option security-wise. Podman enjoys wider integration with developer tools than Docker, which offers you a compatible API that makes switching possible. Hence, you might enjoy more features on Podman.Īnother reason you might consider Podman is its integration with other developer tools.

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However, running Podman on your machine will require that you install additional features that will allow rootless containers to run on user namespaces. This adds an extra layer of protection by making daemonless containers less prone to attacks because any attack on the container has to be done by the user since the container is running under user privileges. Running Podman, a daemonless container engine, gives you a considerable advantage security-wise since a container relies on user privileges. Hence, the system takes over the Docker daemon functionality in Podman. With Podman, containers are run in the background without root privileges because it integrates directly with systemD (system daemon), which allows it to run in the background. However, Podman Container Engine runs on a daemonless architecture that does not require root privileges. Like Docker, you can use the Podman container engine to develop, manage, and run OCI containers on Linux machines. Podman is an open-source, alternative virtualization platform by RedHat. The first Docker alternative on our list is Podman. Without further ado, let me reveal the best Docker alternatives. Selecting a suitable Docker alternative from the list of ten best alternatives I will be presenting will significantly depend on what suits your need as a developer. To prevent this, you might have to save the data on a container to a different location.Īlthough Docker addressed this issue, developers still experience difficulty in storing data on the Docker platform. Managing data stored on Docker’s containers might be difficult since all data held in a container is wiped off when you shut down the container.

This is one challenge addressed by RedHat’s Daemonless Podman, which lets you run containers without root privileges. The Docker daemon will not run if you don’t grant it root privileges. Having been well familiar with running Docker and other alternatives, I have outlined reasons why Docker alternatives might be the best option for you. Nonetheless, Docker is the leading player in virtualized platform developments, but as I earlier pointed out, it has its lapses, which are enough reasons to seek alternative virtualized platforms.

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To ensure constant development and update of its programs, Docker made its programs open-source and also partners with major programming communities worldwide.

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Its software container is flexible, light with not much demand on system resources, and easy to deploy. Wrapping Up – What Is The Best Docker Alternative? Why Do You Need A Docker Alternative?ĭocker has advanced the programming environment by launching the Docker virtual platform for app development.

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