Mnemosyne Cheatsheet
The greek god Mnemosyne hint me to write this collection of commands that from time to time slips my memory.
2024
The AZ show
Some helpful az commands to inspect the cluster information.
Git rebase and amend
When handling dozens of different branches in a Git repo, doing a rebase and all the right commands to make a clean push can be a bit challenging. Here are my notes on how rebase and push it with more confidence.
Setup public Ingress Controller to private ARO cluster
On this exercise, we will deploy an additional Ingress Controller to make application ingress available to the internet.
Setup Gitlab Operator in ROSA
On this exercise, we will deploy the Operator and setup the Gitlab instance.
Helmchart from scratch using OpenShift local
On this exercise, we will deploy an application from scratch using Helm Chart.
Building the memcached-operator with podman and OCP
On this exercise we will go through the issues that I found while trying the example mem-cached operator.
Application using images from the internal registry
On this exercise1, we will deploy an application, tag and push a new version of the image to the Internal Registry, find where the image is hosted and patch the deployment to use the new image.
PromQL expressions for K8S
A set of PROMQL expressions that has been the most useful for me.
Parsing messages with grep and awk
When handlind hundreds of log files for inspection, knowing how to use grep to parse and find the relevant errors saves a lot of time. I usually use grep for that, and in this note, I've saved some awk notes.