Kind - local k8s

Few words after using kind:

• works only with docker, there is also a podman provider (not tested)
• docker image node-image simulates a k8s node - all components in one image, started by systemd
• docker container is priviledged
• easy to start just use kind command, under the hood it download right node-image version and start it
• node-image is based on base-image
• you can run multiple node cluster
• you can customize kind configuration ie. number/types of nodes, exposed ports to host, extra mounts, kubeadm patches
• when you customize kubeadm section, kind on boot apply those changes
• kind container is bound to docker network driver bridge
• kind ships with simple CNI kindnet and it’s also swappable
• CRI is implemented by containerd
• kind is using internal image registry
• hard to expose services when running MacOSX, Windows, easier to expose services as k8s ingress
• good for testing, because of fast start
• not fully featured as minikube
• cannot easily simulate cluster upgrade