Welcome, esteemed readers! Today, we’ll be exploring a question that many server administrators are interested in: can you run Docker in OpenVZ? Let’s delve into this important question together.
OpenVZ is a popular operating system-level virtualization that allows you to run various isolated environments on a single server. Docker, in turn, is a tool for developing, shipping, and running applications in containers. And so the question arises — are these two tools compatible?
At first glance, running Docker inside an OpenVZ container seems possible, since both tools work with containerization. However, it’s important to remember that Docker requires access to the kernel to create and manage containers, and OpenVZ virtualization does not provide this functionality due to the shared kernel.
This means that in most cases, running Docker in an OpenVZ container will be impossible or will lead to incorrect operation. Docker simply will not have the necessary rights and access to resources, which can cause errors and problems in operation.
Nevertheless, there are ways to circumvent this limitation. For example, you can use a «privileged» OpenVZ container, which provides broader access rights to resources. However, this requires certain skills and configuration, and will not always be the recommended approach.
So, can you run Docker in OpenVZ? Theoretically — yes, practically — no. Be careful when deciding to run Docker in an OpenVZ environment and consider all possible limitations and problems that may arise.
We hope this article has helped you understand this issue. Stay tuned for our updates and learn more interesting information about virtualization, Docker, and other IT topics.
