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Last updated on 18 May 2023
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Helm
Kubernetes
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Network Policies
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Kubernetes Network Policies
Role Based Access Control RBAC
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Kubernetes Role Based Access Control RBAC
Authorization
Kubernetes namespace deleting stuck in Terminating state
kubectl error: You must be logged in to the server (Unauthorized) – how to fix
nodeSelector and nodeAffinity
PodAffinity
Taint and Tolerations
Backup and Restore Kubernetes ETCD database
Clean up old containers and images in your kubernetes cluster
Kubernetes: Evenly Distribution of Pods Across Cluster Nodes
Kubernetes CheatSheet
Kubernetes Pod Security Policies explained
Kubernetes copy data between pvc
Kubernetes pvc deleting stuck in Terminating state
Easy way to change namespace in Kubernetes
Pull an Image from a Private Registry
Mounting a ConfigMap to an Existing Volume in Kubernetes
Updating a ConfigMap
Kubernetes NodePort vs LoadBalancer vs Ingress
externalTrafficPolicy
Quota's, Limits and Resources
Upgrade Kubernetes
Volumes
Generate TLS Secret for kubernetes
Update cluster DRAFT - NOT TESTED
Kubernetes
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GoLang: Using multi-stage builds to create clean Docker images
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Nexus database restore
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Running Docker on WSL2 without Docker Desktop
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Jenkins dump credentials
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Monitoring
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Chapter 1
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Chapter 1-1
Chapter 1-2
Chapter 1-3
Chapter 1-4
Chapter 2 (weighted)
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Chapter 2-3 (weight: 10)
Chapter 2-4 (weight: 20)
Chapter 2-2 (weight: 30)
Chapter 2-1 (weight: 40)
Chapter 3 (hierarchized)
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Chapter 3-1
Chapter 3-2
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Chapter 3-2-1
Chapter 3-2-2
Chapter 3-2-3
Chapter 3-2-4
Chapter 3-3
Chapter 3-4
Sample Document
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Ansible
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Running Ansible through SSH Jump / Bastion Host
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Ansible execute a role with condition
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Ansible force ansible version
Ansible idempotently change file attributes
Ansible patch single package
Ansible patching or using forked version ansible galaxy role
Ansible pipelining
Ansible register shell output
Ansible run playbook
Ansible with items key and value
Better CLI experience
Cheatsheet
Cloning private GitHub repositories with Ansible on a remote server through SSH
Certificates
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Certificates Kubernetes
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Show Certificate info
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Git
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Unfork a repo on GitHub
Clean up old git branches
Compare encrypted git files
Git errors and how to solve them
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Show current git branch with colors in Bash prompt
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Linux
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Hot add memory
How to convert JPG to PDF in Linux
Create Password Protected ZIP in Linux
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Puppet
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Hiera
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Puppet Duplicate Resources with PuppetDB
Ubuntu
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Always connect VPN Ubuntu 19.10
Pulse Audio Bluetooth codecs
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Varnish Cheat sheet
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