14  Clean up

Uninstall GESIS BinderHub:

helm uninstall bhub-test --namespace=bhub-test-ns

Drain every node:

kubectl drain svko-ilcm04 \
    --delete-emptydir-data \
    --force \
    --ignore-daemonsets
kubectl delete node svko-ilcm04
kubectl drain svko-css-backup-node \
    --delete-emptydir-data \
    --force \
    --ignore-daemonsets
kubectl delete node svko-css-backup-node

And reset Kubernetes in every node:

sudo kubeadm reset
sudo rm -rf \
    /etc/cni/net.d
rm -rf ~/.kube/
sudo kubeadm reset
sudo rm -rf \
    /etc/cni/net.d
rm -rf ~/.kube/

Uninstall Kubernetes:

sudo apt-get  -y --allow-change-held-packages purge  \
    docker \
    docker-engine \
    docker.io \
    containerd \
    runc \
    docker-ce \
    docker-ce-cli \
    containerd.io \
    docker-buildx-plugin \
    docker-compose-plugin \
    kubelet \
    kubeadm \
    kubectl
sudo apt-get -y autoremove
sudo rm -rf \
    /etc/docker \
    /etc/containerd \
    /etc/kubernetes \
    /var/lib/kubelet \
    /var/lib/containerd \
    /var/lib/docker
sudo apt-get -y --allow-change-held-packages purge \
    docker \
    docker-engine \
    docker.io \
    containerd \
    runc \
    docker-ce \
    docker-ce-cli \
    containerd.io \
    docker-buildx-plugin \
    docker-compose-plugin \
    kubelet \
    kubeadm \
    kubectl
sudo apt-get -y autoremove
sudo rm -rf \
    /etc/docker \
    /etc/containerd \
    /etc/kubernetes \
    /var/lib/kubelet \
    /var/lib/containerd \
    /var/lib/docker

Uninstall PostgreSQL following Section 52.10.

Reset iptables:

sudo iptables -F
sudo iptables -F