Install etcd

install-etcd.sh

#!/bin/bash
set -e

GOOGLE_URL=https://storage.googleapis.com/etcd
GITHUB_URL=https://github.com/etcd-io/etcd/releases/download
DOWNLOAD_URL=${GOOGLE_URL}

main() {
    os=linux
    if [[ "$(uname -s)" == "Darwin" ]]; then
        os=darwin
    fi

    arch=amd64
    if [[ "$(uname -m)" == "aarch64" ]]; then
        arch=arm64
    fi

    etcd_ver=$1
    rm -f /tmp/etcd-${etcd_ver}-${os}-${arch}.tar.gz
    rm -rf /tmp/etcd-download-test && mkdir -p /tmp/etcd-download-test

    curl -L ${DOWNLOAD_URL}/${etcd_ver}/etcd-${etcd_ver}-${os}-${arch}.tar.gz -o /tmp/etcd-${etcd_ver}-${os}-${arch}.tar.gz
    tar -xzvf /tmp/etcd-${etcd_ver}-${os}-${arch}.tar.gz -C /tmp/etcd-download-test --strip-components=1
    mv /tmp/etcd-download-test/etcd /usr/local/bin/etcd && chmod +x /usr/local/bin/etcd
    mv /tmp/etcd-download-test/etcdctl /usr/local/bin/etcdctl && chmod +x /usr/local/bin/etcdctl
    rm -f /tmp/etcd-${etcd_ver}-${os}-${arch}.tar.gz
    rm -rf /tmp/etcd-download-test
}

main "$@"

sh -c "$(curl -fssL https://gist.githubusercontent.com/crazytaxii/802a5dc93d6a0cc2cb606709b2ac0d16/raw/40febedde7c6f2a5d1e183f5ce08171524b5e747/kubeadm-prerequisites.sh)" v3.4.13