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59 changes: 31 additions & 28 deletions README.md
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Original file line number Diff line number Diff line change
@@ -1,12 +1,14 @@
# install-k8s on ubuntu 20.4
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#docker

sudo apt update
&& lsmod | grep br_netfilter
&& sudo modprobe br_netfilter
&& sudo sysctl net.bridge.bridge-nf-call-iptables=1
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sudo apt install apt-transport-https ca-certificates curl software-properties-common -y
&& sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
&& sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
Expand All @@ -26,6 +28,7 @@
&& sudo rm -rf /etc/containerd/config.toml
&& sudo systemctl restart containerd
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#k8s

sudo apt install apt-transport-https curl -y
Expand All @@ -39,11 +42,13 @@
&& sudo apt-get install -y kubernetes-cni
&& sudo apt-get install -y kubelet kubeadm kubectl kubernetes-cni
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#swap

sudo swapoff -a
&& sudo nano /etc/fstab
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#comment swap file

Inside the file, comment out the swapfile line as shown in the screenshot below:
Expand All @@ -61,6 +66,7 @@
UUID=71D9-7FBF /boot/efi vfat umask=0077 0 1
-> #/swapfile none swap sw 0 0
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#init node in k8s

sudo kubeadm init --ignore-preflight-errors=NumCPU,Mem --pod-network-cidr=10.244.0.0/16
Expand All @@ -72,12 +78,17 @@
&& sudo ufw allow 6443/tcp
&& kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
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#Sử dụng khi chỉ dùng một node master (huynt là tên node)

kubectl taint nodes huynt node-role.kubernetes.io/control-plane-

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#install dashboard

#create tls

sudo mkdir /certs
&& sudo chmod -R 777 /certs
&& sudo openssl req -nodes -newkey rsa:2048 -keyout /certs/dashboard.key -out /certs/dashboard.csr -subj "/C=/ST=/L=/O=/OU=/CN=kubernetes-dashboard"
Expand All @@ -89,21 +100,30 @@
kubectl create secret generic kubernetes-dashboard-certs --from-file=/certs -n kubernetes-dashboard

#run file dashboard.yaml

kubectl apply -f dashboard.yaml

#create account admin

#run file admin-user.yaml

kubectl apply -f admin-user.yaml

#create token login web dashboard

kubectl -n kubernetes-dashboard create token admin-user

-------------------------------------------------------------------------------------------------------------------#install ingress-nginx controller
-------------------------------------------------------------------------------------------------------------------

#install ingress-nginx controller

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.7.1/deploy/static/provider/cloud/deploy.yaml
kubectl get pods --namespace=ingress-nginx

-------------------------------------------------------------------------------------------------------------------#install loadalancer

#install loadalancer

# see what changes would be made, returns nonzero returncode if different
kubectl get configmap kube-proxy -n kube-system -o yaml | \
sed -e "s/strictARP: false/strictARP: true/" | \
Expand All @@ -119,13 +139,16 @@
#run file loadalancer.yaml
kubectl apply -f loadalancer.yaml
-------------------------------------------------------------------------------------------------------------------

#insert name hosts

sudo nano /etc/hosts

example: 192.168.1.11 congcu24.com

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#common k8s

#reset Node
Expand Down Expand Up @@ -194,40 +217,20 @@

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#common

#Xem port nào đang chạy

sudo lsof -i -P -n | grep LISTEN

#Cấp Quyền

sudo chmod -R 777 /home/worker/.kube/config-mycluster

#Đứng ở node worker gọi lệnh để tải file cấu hình master về worker (truyền file)

sudo scp [email protected]:/etc/kubernetes/admin.conf ~/.kube/config-mycluster

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