README.md

Setup cluster

1-Install Flannel for CNI

kubectl create -f flannel.yml
kubectl create -f kubedns.yml
# Must be done on all node
sudo sysctl net.bridge.bridge-nf-call-iptables=1

2-Install Nginx Ingress

helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm install nginx-ingress stable/nginx-ingress --set defaultBackend.image.repository=docker.io/medinvention/ingress-default-backend,controller.image.repository=quay.io/kubernetes-ingress-controller/nginx-ingress-controller-arm,defaultBackend.image.tag=latest,controller.image.tag=0.27.1
helm install ingress stable/nginx-ingress --set controller.hostNetwork=true,controller.kind=DaemonSet
# Check public IP if set
kubectl get svc ingress-nginx-ingress-controller -o jsonpath="{.status.loadBalancer.ingress[0].ip}"
# You can set it manual
kubectl patch svc nginx-ingress-controller -p '{"spec": {"type": "LoadBalancer", "externalIPs":["[YOUR-PUBLIC-IP]"]}}'
# If Pod cannot communicate, run in all node 
sudo systemctl stop docker
sudo iptables -t nat -F
sudo iptables -P FORWARD ACCEPT
sudo ip link del docker0
sudo ip link del flannel.1
sudo systemctl start docker
# If docker service can't (caused by containered failure) : 
# sudo rm /var/lib/containerd/io.containerd.metadata.v1.bolt/meta.db
# sudo rm -rf /var/lib/docker/containers
# see 
# - https://github.com/containerd/containerd/issues/3347 
# - https://askubuntu.com/questions/1222440/why-wont-the-docker-service-start

3- Install NFS Storage (With testing)

kubectl apply -f ../storage/nfs-deployment.yml
kubectl apply -f ../storage/nfs-testing.yml

4- Save your Cluster :

# cluset data will be saved in ~/bkp
./../os/backup.sh 

5- Cluster Tear down :

kubeadm reset