Docker Engine 20.10 Released: Supports cgroups v2 and Dual Logging

Docker Engine 20.10 Released: Supports cgroups v2 and Dual Logging

Docker announced the next release of Docker Engine 20.10, adding support for cgroups v2 with improvements in the command line interface (CLI) and support for dual logging. This is the first major release after Docker Engine 19.03, released on 22nd July, 2019.

Docker announced the next release of Docker Engine 20.10, adding support for cgroups v2 with improvements in the command line interface (CLI) and support for dual logging. This is the first major release after Docker Engine 19.03, released on 22nd July, 2019.

Benjamin De St Paer-Gotch, principal product manager at Docker Inc, provided details of this release in a blog post. Docker Engine comprises a client-server application, with a server dockerd, APIs specifying interfaces to be used by programs, and a CLI client, docker.

Building on the foundational Linux Kernel, Docker Engine has introduced cgroups v2 to isolate the running processes and files associated with them. Docker uses namespaces with cgroups, to achieve the said isolation. Adding this feature has enabled Docker to graduate "rootless" to a fully supported feature. Rootless mode facilitates running the entire Docker environment without root system privileges.

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