While researching another article I discovered that it’s now possible to change the restart policy for a container without stopping, deleting and re-running it. Apparently this has also been possible for quite a long time, since Docker 1.11 was released in April 2016. The docker update command allows you to change the configuration of a container in several… Continue reading Changing a Docker container’s restart policy
There is a rather unhealthy obsession, in my opinion, in the Docker community about developing the smallest possible container size. Obviously you don’t want your container to contain hundreds of megabytes of useless junk, but perhaps we have passed the point of diminishing returns. It turns out that it is less expensive to have files… Continue reading Do Docker Users Have a Container Size Fetish?
If you were lucky enough to go to DockerCon 2017 (I wasn’t) you might have seen the announcement of Moby and LinuxKit, Docker’s new framework for assembling specialised container systems. Traditionally a bare metal or virtual machine that runs Docker has run a “full service” distribution like Debian, Ubuntu or RedHat Linux. Docker and containerized applications are then installed and run on… Continue reading LinuxKit – the software-defined OS
I remember the first time that I discovered command line completion for my shell way back in the early 90’s. Up until then, you needed to remember the filename you wanted to use for any command and type the full name out in its entirety. This could be a frustrating and error-prone process even if… Continue reading Docker Command Line Completion