Dive-In Kubernetes: Basic Concepts

Beschreibungstext

In diesem Dive-In Workshop bekommt ihr einen Überblick über das Basiskonzept von Kubernetes, Grundlagen von Containern und vielen anderen Ressourcen vermittlet. Darüber hinaus sprechen wir über aktuelles Tooling und stellen einige kurz vor.

Workshop requirements

To participate in our workshops you will require the following items on your notebook:

• Linux, MacOS or Windows idealy with an administrator access
• kubernetes client software kubectl
  • Install kubectl
• helm client software version 3.x
  • Install helm
• Optionally: kubectx context management tool
  • Install kubectx
• Optionally: Docker desktop software
  • Install Docker desktop Windows
  • Install Docker desktop MacOS

Extra

• k9s -> https://github.com/derailed/k9s
• Lens -> https://k8slens.dev/
• Web basierter Generator für K8S YMLs -> https://k8syaml.com/

Docker (Ersatz/lizenztechnisches)

• bei Lizenzbedenken bzgl. Docker Desktop auf Windows -> https://dev.to/_nicolas_louis_/how-to-run-docker-on-windows-without-docker-desktop-hik
• Podman als Docker Ersatz - https://podman.io/

Environment

• zsh-autosuggestions -> https://github.com/zsh-users/zsh-autosuggestions
• zsh-autocomplete -> https://github.com/marlonrichert/zsh-autocomplete
• zsh-syntax-highlighting -> https://github.com/zsh-users/zsh-syntax-highlighting
• oh-my-zsh -> https://ohmyz.sh/#install
• Powerlevel10k -> https://github.com/romkatv/powerlevel10k

Config Management

export KUBECONFIG="$(find ~/.kube/configs -iname 'kubeconfig-*' -exec printf '%s:' '{}' +)${HOME}/.kube/configs/config"

load_kubeconfig () {
  export KUBECONFIG="$(find ~/.kube/configs -iname 'kubeconfig-*' -exec printf '%s:' '{}' +)${HOME}/.kube/configs/config"
}
load_kubeconfig

Prometheus

• Prometheus mit mehreren Clustern -> https://sysrant.com/posts/prometheus-multi-cluster/

k8s testen

• kubeadm (minimum viable Kubernetes cluster) -> https://kubernetes.io/docs/reference/setup-tools/kubeadm/
• k3s (Lightweight Kubernetes) -> https://k3s.io/
• k3d (k3d is a lightweight wrapper to run k3s) -> https://k3d.io/
• KIND (Kubernetes in Docker) -> https://kind.sigs.k8s.io/

Additional tooling and resources

• https://github.com/aylei/kubectl-debug
• https://github.com/kubernetes-sigs/krew
• https://github.com/corneliusweig/rakkess
• https://github.com/derailed/popeye
• https://github.com/kubernetes-sigs/krew-index/blob/master/plugins/view-secret.yaml
• https://github.com/kubernetes-sigs/krew-index/blob/master/plugins/get-all.yaml
• https://github.com/kubernetes-sigs/krew-index/blob/master/plugins/resource-capacity.yaml
• https://github.com/kubernetes-sigs/krew-index/blob/master/plugins/view-utilization.yaml
• https://github.com/instrumenta/kubeval
• https://github.com/hadolint/hadolint
• https://www.telepresence.io/
• https://github.com/weaveworks/flux
• https://tilt.dev/
• https://argoproj.github.io/argo-cd/
• https://kubernetes.github.io/ingress-nginx/
• https://cert-manager.readthedocs.io/
• https://github.com/presslabs/mysql-operator
• https://github.com/coreos/prometheus-operator
• https://prometheus.io/
• https://grafana.com
• https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.16/
• https://operatorhub.io/
• https://keel.sh/
• https://helm.sh/
• https://ahmet.im/blog/mastering-kubeconfig/
• https://github.com/IBM/kui
• https://github.com/bitnami-labs/sealed-secrets
• https://github.com/eldadru/ksniff
• https://kubernetes.academy/
• https://github.com/jonmosco/kube-ps1
• https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler
• https://github.com/herbrandson/k8dash
• https://github.com/kubernetes/dashboard
• https://gitlab.com/bashofmann/angular-test-app-finished
• https://github.com/kelseyhightower/kubernetes-the-hard-way
• https://k8s.af/
• https://github.com/derailed/k9s
• https://github.com/ramitsurana/awesome-kubernetes
• https://github.com/int128/kubelogin
• https://github.com/wagoodman/dive