94 lines
2.7 KiB
Bash
94 lines
2.7 KiB
Bash
#!/bin/bash
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# Setting all parameters
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NODE_TYPE=$1
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INTERNAL=!$2
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MASTER_IP=$3
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## Parameters for master node installation
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if [ "$NODE_TYPE" == "master" ]
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then
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if [ "$#" -lt 4 ]; then
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POD_NETWORK_ARG=""
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else
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POD_NETWORK_ARG="--pod-network-cidr=$4"
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fi
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# Parameters for worker node installation
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elif [ "$NODE_TYPE" == "worker" ]
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then
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TOKEN=$4
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HASH=$5
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fi
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#Installing Docker
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DOCKER_INSTALLED=$(which docker)
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if [ "$DOCKER_INSTALLED" = "" ]
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then
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apt-get remove docker docker-engine docker.io
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apt-get update
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apt-get install -y apt-transport-https ca-certificates curl software-properties-common
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curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
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add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
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apt-get update
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apt-get install -y docker-ce
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fi
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#Installing Kubernetes
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KUBERNETES_INSTALLED=$(which kubeadm)
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if [ "$KUBERNETES_INSTALLED" = "" ]
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then
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curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
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touch /etc/apt/sources.list.d/kubernetes.list
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chmod 666 /etc/apt/sources.list.d/kubernetes.list
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echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" > /etc/apt/sources.list.d/kubernetes.list
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apt-get update
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apt-get install -y kubelet kubeadm kubectl kubernetes-cni
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fi
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#Disabling swap for Kubernetes
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sysctl net.bridge.bridge-nf-call-iptables=1 > /dev/null
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swapoff -a
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# Initialize Kubernetes as Master node
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if [ "$NODE_TYPE" == "master" ]
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then
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## Set master node for internal network
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if [ $INTERNAL ]; then
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touch /etc/default/kubelet
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echo "KUBELET_EXTRA_ARGS=--node-ip=$MASTER_IP" > /etc/default/kubelet
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fi
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## Init Kubernetes
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kubeadm init --ignore-preflight-errors=SystemVerification \
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--apiserver-advertise-address=$MASTER_IP $POD_NETWORK_ARG
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mkdir -p $HOME/.kube
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cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
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chown $(id -u):$(id -g) $HOME/.kube/config
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echo "[master:$(hostname -s)] Node is up and running on $MASTER_IP"
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# Initialize Kubernetes as Worker node
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elif [ "$NODE_TYPE" = "worker" ]
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then
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## Set worker node for internal network
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if [ $INTERNAL ]; then
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IP=$(grep -oP \
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'(?<=src )[^ ]*' \
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<(grep -f <(ls -l /sys/class/net | grep pci | awk '{print $9}') \
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<(ip ro sh) |
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grep -v $(ip ro sh | grep default | awk '{print $5}')) |
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head -1)
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touch /etc/default/kubelet
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echo "KUBELET_EXTRA_ARGS=--node-ip=$IP" > /etc/default/kubelet
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else
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IP=$(grep -oP '(?<=src )[^ ]*' <(ip ro sh | grep default))
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fi
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## Join to Kubernetes Master node
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kubeadm join $MASTER_IP --token $TOKEN --discovery-token-ca-cert-hash $HASH \
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--ignore-preflight-errors=SystemVerification
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echo "[worker:$(hostname -s)] Client ($IP) joined to Master ($MASTER_IP)"
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else
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echo "Invalid argument"
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fi
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