Why not run rootless Docker? Although this has the benefit of superficially limiting access to the root user so everything looks safer in “top”, it allows unprivileged users to gain CAP_SYS_ADMIN in their own user namespace and access kernel APIs which are not expecting to be used by unprivileged users, resulting in vulnerabilities like this. The VM approach mitigates this threat as any malware that gains root privileges is restricted to the VM environment without access to the host.
Malicious users can push images to public registries and use different methods to trick users into pulling and running them. There is a large number of unofficial images that are not guaranteed to be verified for known vulnerabilities. Because we control the kernel and the OS inside the VM, we can roll these out to all users immediately, even to users who are intentionally sticking on an LTS version of their machine OS.Ĭontainer image vulnerabilities pose a security risk for the host environment. Sometimes we want to make use of new operating system features. We’ll provide more details on these at DockerCon22. This need to deliver a consistent experience across all major OSs will become increasingly important as we look towards adding exciting new features, such as Docker Extensions, to Docker Desktop that will benefit users across all tiers. UtilizingĪ VM ensures that the Docker Desktop experience for Linux users will closely To ensure that Docker Desktop provides a consistent experience across platforms.ĭuring research, the most frequently cited reason for users wanting Dockerĭesktop for Linux (DD4L) was to ensure a consistent Docker DesktopĮxperience with feature parity across all major operating systems. pkgAcquire::Run (13: Permission denied)ĭocker Desktop for Linux runs a Virtual Machine (VM) for the following reasons:
#Docker install mac terminal download
N: Download is performed unsandboxed as root, as file '/home/user/Downloads/b' couldn't be accessed by user '_apt'. The available shared memory should be higher than this. By default, Docker Desktop allocates half of the memory and CPU from the host.
There are a few post-install configuration steps done through the maintainers’ scripts (post-install script contained You may need to restart the host to load the group configuration (automated in post-install script). Check whether the user belongs to docker and kvm groups.
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