mirror of
https://github.com/MichaelCade/90DaysOfDevOps.git
synced 2025-01-10 07:06:38 +07:00
84 lines
2.5 KiB
Bash
84 lines
2.5 KiB
Bash
#! /bin/bash
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MASTER_IP="10.0.0.10"
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NODENAME=$(hostname -s)
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POD_CIDR="192.168.0.0/16"
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sudo kubeadm config images pull
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echo "Preflight Check Passed: Downloaded All Required Images"
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sudo kubeadm init --apiserver-advertise-address=$MASTER_IP --apiserver-cert-extra-sans=$MASTER_IP --pod-network-cidr=$POD_CIDR --node-name $NODENAME --ignore-preflight-errors Swap
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mkdir -p $HOME/.kube
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sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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sudo chown $(id -u):$(id -g) $HOME/.kube/config
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# Save Configs to shared /Vagrant location
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# For Vagrant re-runs, check if there is existing configs in the location and delete it for saving new configuration.
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config_path="/vagrant/configs"
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if [ -d $config_path ]; then
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rm -f $config_path/*
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else
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mkdir -p /vagrant/configs
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fi
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cp -i /etc/kubernetes/admin.conf /vagrant/configs/config
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touch /vagrant/configs/join.sh
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chmod +x /vagrant/configs/join.sh
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# Generete kubeadm join command
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kubeadm token create --print-join-command > /vagrant/configs/join.sh
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# Install Calico Network Plugin
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curl https://docs.projectcalico.org/manifests/calico.yaml -O
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kubectl apply -f calico.yaml
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# Install Metrics Server
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kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
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kubectl patch deployment metrics-server -n kube-system --type 'json' -p '[{"op": "add", "path": "/spec/template/spec/containers/0/args/-", "value": "--kubelet-insecure-tls"}]'
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# Install Kubernetes Dashboard
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kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.4.0/aio/deploy/recommended.yaml
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# Create Dashboard User
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cat <<EOF | kubectl apply -f -
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: admin-user
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namespace: kubernetes-dashboard
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EOF
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cat <<EOF | kubectl apply -f -
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: admin-user
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: cluster-admin
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subjects:
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- kind: ServiceAccount
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name: admin-user
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namespace: kubernetes-dashboard
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EOF
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kubectl -n kubernetes-dashboard get secret $(kubectl -n kubernetes-dashboard get sa/admin-user -o jsonpath="{.secrets[0].name}") -o go-template="{{.data.token | base64decode}}" >> /vagrant/configs/token
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sudo -i -u vagrant bash << EOF
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mkdir -p /home/vagrant/.kube
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sudo cp -i /vagrant/configs/config /home/vagrant/.kube/
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sudo chown 1000:1000 /home/vagrant/.kube/config
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EOF
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sudo systemctl restart systemd-resolved
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sudo swapoff -a && sudo systemctl daemon-reload && sudo systemctl restart kubelet
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