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// No Security

{
  "rules": {
    ".read": true,
    ".write": true
  }
}

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[OSEv3:children]
masters
nodes
etcd
glusterfs

[OSEv3:vars]
ansible_ssh_user=ec2-user
ansible_become=true

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oc adm upgrade --to-image=registry.svc.ci.openshift.org/origin/release:4.2 --force

DanielChuDC

This gist is mostly based on the dnsmasq appendix from the openshift-training repo. However, I updated it and included fixes for the many gotchas I found along the way.

This is useful for folks who want to set up a DNS service as part of the cluster itself, either because they cannot easily change their DNS setup outside of the cluster, or just because they want to keep the cluster setup self-contained.

DanielChuDC

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

DanielChuDC

#!/bin/sh
# based on https://gist.github.com/ipedrazas/9c622404fb41f2343a0db85b3821275d

# delete all evicted pods from all namespaces
kubectl get pods --all-namespaces | grep Evicted | awk '{print $2 " --namespace=" $1}' | xargs kubectl delete pod

# delete all containers in ImagePullBackOff state from all namespaces
kubectl get pods --all-namespaces | grep 'ImagePullBackOff' | awk '{print $2 " --namespace=" $1}' | xargs kubectl delete pod

# delete all containers in ImagePullBackOff or ErrImagePull or Evicted state from all namespaces

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Default

Powerlevel10k

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#!/bin/bash
# (c) Artur.Klauser@computer.org
#
# This script checks if all software requirements are met in a Linux environment
# in order to use 'docker buildx' to build multi-architecture images.
# For more information see:
# https://nexus.eddiesinentropy.net/2020/01/12/Building-Multi-architecture-Docker-Images-With-Buildx/

function error() {
  echo "ERROR: $*"

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#!/bin/bash
# (c) Artur.Klauser@computer.org
#
# This script tries to reregister QEMU's binfmt_misc handlers with the
# fix-binary (F) flag in order to be usable with 'docker buildx' to build
# multi-architecture images.
# For more information see:
# https://nexus.eddiesinentropy.net/2020/01/12/Building-Multi-architecture-Docker-Images-With-Buildx/

function remove_binfmt() {

DanielChuDC

How to update the Go version

System: Debian/Ubuntu/Fedora. Might work for others as well.

1. Uninstall the exisiting version

As mentioned here, to update a go version you will first need to uninstall the original version.

To uninstall, delete the /usr/local/go directory by: