I *love* Podman. While Podman purports to be a way to test and troubleshoot Pods - "the smallest deployable units of computing that can be created and managed in Kubernetes" - where its real value lies for me and my coworkers is as a non-root, daemonless, drop-in replacement for Docker. We can run containers on … Continue reading PODMAN: ‘overlay’ is not supported over xfs
I was gradually exposed to Linux over time. I came into contact with it over and over before it finally stuck with me. My first experience was with Knoppix, a Live-CD based distro, when I was working at the computer lab in college. A co-worker was also just learning about Linux, and shared it with … Continue reading How I found Linux
Flash Player?! Horse Hockey!
What decade is this?
There are any number of ways to use containers and numerous ways to build container images. The creativity of the community never ceases to amaze me - I am always stumbling across a creative new use case or way of doing things. As our organization at $WORK has adopted containers into our production workflow, I … Continue reading Three Docker Build Strategies
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1,SHA512 Fri Dec 9 11:49:22 EST 2016 Statement of GPG Key Transition ------------------------------- In order to replace my older DSA-1024 key, I have set up a new OpenPGP key, and will be transitioning away from my old key. The old key will continue to be valid until 2017-06-01, but future … Continue reading Statement of GPG Key Transition
Image by Marius Kallhardt from near Bremen, Germany Creative Commons Attribution-Share Alike 2.0 Generic License We ran into a fun little bug this week at work that took a good while to track down to it's source. Imagine this scenario: We start to receive reports that Docker has restarted, causing containers running on the hosts to … Continue reading When Systemd, Docker and Golang Butt Heads
It took me a little while to notice what was happening here, so I'm writing it down in case someone else needs it. Consider this example Dockerfile: FROM centos:centos7 MAINTAINER Chris Collins ENV VAR1="foo" ENV VAR2="bar" It's common practice to collapse the ENV lines into a single line, to save a layer: FROM centos:centos7 MAINTAINER Chris … Continue reading Quick Tip – Docker ENV variables