orcunuso

My Cheat Sheet Related with Containers

As my daily routine highly includes Docker, Kubernetes and OpenShift, I thought that it would be a good idea to prepare and publish a cheat sheet for myself and also for anyone who might find this useful. So let's start with some aliases.

alias dockerauth='cat $HOME/.docker/config.json'
alias dockerps='docker ps --format "table {{.ID}}\t{{.Names}}\t{{.Image}}\t{{.Status}}\t{{.Command}}" --no-trunc'
alias ocsource='source <(oc completion bash)'
alias ocnodelistpods='oc adm manage-node --list-pods'
alias ocnodemaintenanceon='oc adm manage-node --schedulable=false'

orcunuso

#!/bin/bash

# Before start, please check that sysctl net.ipv4.ip_forward is set to 1.
# Install yum packages

yum install -y vim curl net-tools bash-completion yum-utils lsof

# Install Docker latest. yum-utils package is required (which provides the yum-config-manager 
# utility) in order to set up the docker stable repository. After install, we need to define 
# docker network as insecure registry to prevent failure during cluster creation.

orcunuso

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: certifications.k8s.orcunuso.io
spec:
  additionalPrinterColumns:
  - name: Owner
    description: Owner of the certification
    JSONPath: .spec.owner
    type: string