mirror of
https://github.com/MichaelCade/90DaysOfDevOps.git
synced 2025-01-26 23:51:07 +07:00
92 lines
2.6 KiB
Bash
92 lines
2.6 KiB
Bash
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#! /bin/bash
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# Variable Declaration
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KUBERNETES_VERSION="1.23.3-00"
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# disable swap
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sudo swapoff -a
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# keeps the swaf off during reboot
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sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab
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#Letting iptables see bridged traffic
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lsmod | grep br_netfilter
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sudo modprobe br_netfilter
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cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
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br_netfilter
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EOF
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cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
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net.bridge.bridge-nf-call-ip6tables = 1
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net.bridge.bridge-nf-call-iptables = 1
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EOF
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sudo sysctl --system
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# containerd
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cat <<EOF | sudo tee /etc/modules-load.d/containerd.conf
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overlay
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br_netfilter
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EOF
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sudo modprobe overlay
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sudo modprobe br_netfilter
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# Setup required sysctl params, these persist across reboots.
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cat <<EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
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net.bridge.bridge-nf-call-iptables = 1
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net.ipv4.ip_forward = 1
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net.bridge.bridge-nf-call-ip6tables = 1
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EOF
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# Apply sysctl params without reboot
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sudo sysctl --system
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#Clean Install Docker Engine on Ubuntu
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sudo apt-get remove docker docker-engine docker.io containerd runc
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sudo apt-get update -y
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sudo apt-get install -y \
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apt-transport-https \
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ca-certificates \
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curl \
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gnupg \
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lsb-release
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#Add Docker’s official GPG key:
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curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
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#set up the stable repository
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echo \
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"deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
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$(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
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#Install Docker Engine
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sudo apt-get update -y
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sudo apt-get install -y docker-ce docker-ce-cli containerd.io
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#Configure containerd
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sudo mkdir -p /etc/containerd
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containerd config default | sudo tee /etc/containerd/config.toml
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#restart containerd
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sudo systemctl restart containerd
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echo "ContainerD Runtime Configured Successfully"
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#Installing kubeadm, kubelet and kubectl
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sudo apt-get update -y
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sudo apt-get install -y apt-transport-https ca-certificates curl
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#Google Cloud public signing key
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sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
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#Add Kubernetes apt repository
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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
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#Update apt package index, install kubelet, kubeadm and kubectl, and pin their version:
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sudo apt-get update -y
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sudo apt-get install -y kubelet kubectl kubeadm
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sudo apt-mark hold kubelet kubeadm kubectl
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