Disable swap for kubelet to work properly
swapoff -asudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl
sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y containerd conntrack socat kubelet kubeadm kubectl Kubelet 1.26 requires containerd 1.6.0 or later.
We are going to use cilium in place of kube-proxy https://docs.cilium.io/en/v1.12/gettingstarted/kubeproxy-free/
sudo kubeadm init --skip-phases=addon/kube-proxyhttps://kubernetes.io/docs/tasks/tools/
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config && sudo chown $(id -u):$(id -g) $HOME/.kube/configFor remote kubectl copy the config file to local machine
scp [email protected]:/home/veh/.kube/config ~/.kube/configGet taints on nodes
kubectl get nodes -o json | jq '.items[].spec.taints'Remove taint on master node to allow scheduling of all deployments
kubectl taint nodes --all node-role.kubernetes.io/control-plane-kubectl kustomize --enable-helm infra/cilium | kubectl apply -f -https://docs.cilium.io/en/stable/gettingstarted/k8s-install-default/
Install Cilium CLI
CILIUM_CLI_VERSION=$(curl -s https://raw.githubusercontent.com/cilium/cilium-cli/master/stable.txt)
CLI_ARCH=amd64
if [ "$(uname -m)" = "aarch64" ]; then CLI_ARCH=arm64; fi
curl -L --fail --remote-name-all https://github.com/cilium/cilium-cli/releases/download/${CILIUM_CLI_VERSION}/cilium-linux-${CLI_ARCH}.tar.gz{,.sha256sum}
sha256sum --check cilium-linux-${CLI_ARCH}.tar.gz.sha256sum
sudo tar xzvfC cilium-linux-${CLI_ARCH}.tar.gz /usr/local/bin
rm cilium-linux-${CLI_ARCH}.tar.gz{,.sha256sum}Install Cilium
cilium installValidate install
cilium statusFor Cilium to act as a load balancer and start assigning IPs
to LoadBalancer services create a viable IP pool, e.g. 192.168.1.128/5, by creating a CiliumLoadBalancerIPPool
kubectl apply infra/cilium/ip-pool.yamland announce using a CiliumL2AnnouncementPolicy
kubectl apply infra/cilium/announce.yamlUsed to create encrypted secrets
kubectl apply -k infra/sealed-secretsBe sure to store the generated sealed secret key in a safa place!
kubectl -n kube-system get secretsNB!: There will be errors if you use my sealed secrets as you (hopefully) don't have the decryption key
Install Traefik
kubectl kustomize --enable-helm infra/traefik | kubectl apply -f -Port forward Traefik ports in router from 8000 to 80 for http and 4443 to 443 for https.
IP can be found with kubectl get svc.
apiVersion: v1
kind: Secret
metadata:
name: traefik-forward-auth-secrets
namespace: whoami
type: Opaque
data:
google-client-id: <...>
google-client-secret: <...>
secret: <...>Deploy a test-application by running
kubectl apply -k apps/whoamiAn unsecured test-application whoami should be available at https://test.${DOMAIN}.
If you configured apps/whoami/traefik-forward-auth correctly a secured version should be available
at https://whoami.${DOMAIN}
ArgoCD is configured to bootstrap the rest of the cluster
kubectl apply -k infra/argocdGet ArgoCD initial secret
kubectl -n argocd get secrets argocd-initial-admin-secret -o json | jq -r .data.password | base64 -dAn OIDC (traefik-forward-auth) protected Kubernetes Dashboard can be deployed using
kubectl apply -k infra/dashboardCreate a token
kubectl -n kubernetes-dashboard create token admin-userOnce you've tested everything get the ball rolling with
kubectl apply -k setskubectl drain gauss --delete-emptydir-data --force --ignore-daemonsets
sudo kubeadm reset
sudo iptables -F && sudo iptables -t nat -F && sudo iptables -t mangle -F && sudo iptables -X
sudo ipvsadm -CKubernetes 1.26 requires containerd 1.6.0 or later due to the removal of support for CRI
version v1alpha2 (link).
Make sure that runc is properly configured in containerd.
NB: Make sure the correct containerd daemon is running.
(Check the loaded containerd service definition as reported by systemctl status containerd)
Follow https://github.com/containerd/containerd/blob/main/docs/getting-started.md for further instructions.
sudo cat /etc/containerd/config.toml[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
runtime_path = "/usr/bin/runc"
runtime_type = "io.containerd.runc.v2"1.7.x doesn't work?
Restart pod after applying master-key
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