Can Mac OS X be run inside Docker? [closed]

Docker provides methods for managing OS-level containers and is built on top of Linux’s native features for OS-level containerization. All containers running on a system share the same kernel; Mac OS X does not use the Linux kernel, but rather a mach kernel, so it cannot be run inside a Docker container at this time. … Read more

How do I auto-start docker containers at system boot?

Apparently, the current method to auto-start Docker containers (from Docker 1.2) is to use restart policies. This will control how Docker should handle starting of the container upon startup and re-starting of the container when it exits. I’ve used the ‘always’ option so far, and can confirm that it makes Docker auto-start the container at … Read more

Why do we use a OS Base Image with Docker if containers have no Guest OS?

Since all Linux distributions run the same (yup, it’s a bit simplified) Linux kernel and differ only in userland software, it’s pretty easy to simulate a different distribution environment – by just installing that userland software and pretending it’s another distribution. Being specific, installing CentOS container inside Ubuntu OS will mean that you will get … Read more

Can you run Docker natively on the new Windows 10 (Ubuntu) bash userspace?

You can use Docker Desktop for Windows as the engine and Docker for Linux as the client in WSL on Ubuntu / Debian on Windows. Connect them via TCP. Install Docker Desktop for Windows: https://hub.docker.com/editions/community/docker-ce-desktop-windows If you want to use Windows Containers instead of Linux Containers both type containers can be managed by the Linux … Read more

How can I debug a docker container initialization?

Docker events command may help and Docker logs command can fetch logs even after the image failed to start. First start docker events in the background to see whats going on. docker events& Then run your failing docker run … command. Then you should see something like the following on screen: 2015-12-22T15:13:05.503402713+02:00 xxxxxxxacd8ca86df9eac5fd5466884c0b42a06293ccff0b5101b5987f5da07d: (from xxx/xxx:latest) … Read more

How can I override CMD when running a docker image?

You could just enter via docker run -it –entrypoint=/bin/bash $IMAGE -i (you ‘ll launch a new container from the image and get a bash shell in interactive mode), then run the entrypoint command in that container. You can then inspect the running container in the state it should be running. EDIT: Since Docker 1.3 you … Read more

Docker Container time & timezone (will not reflect changes)

The secret here is that dpkg-reconfigure tzdata simply creates /etc/localtime as a copy, hardlink or symlink (a symlink is preferred) to a file in /usr/share/zoneinfo. So it is possible to do this entirely from your Dockerfile. Consider: ENV TZ=America/Los_Angeles RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone And as a bonus, TZ will … Read more