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kubectl.sh
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kubectl.sh
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#!/bin/bash
# Function to fetch the latest kubectl version
get_latest_version() {
curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt
}
# Function to install kubectl
install_kubectl() {
local version=$1
echo "Downloading kubectl version $version..."
curl -LO "https://dl.k8s.io/release/${version}/bin/linux/amd64/kubectl"
echo "Verifying kubectl checksum..."
curl -LO "https://dl.k8s.io/${version}/bin/linux/amd64/kubectl.sha256"
echo "$(<kubectl.sha256) kubectl" | sha256sum --check
if [ $? -ne 0 ]; then
echo "Checksum verification failed!"
exit 1
fi
echo "Installing kubectl..."
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
echo "Cleaning up..."
rm kubectl kubectl.sha256
echo "kubectl version $version installed successfully."
}
# Main script
echo "Enter the version of kubectl you want to install (e.g., v1.25.0):"
read -r kubectl_version
# Check if a version was provided
if [ -z "$kubectl_version" ]; then
echo "No version provided. Fetching the latest version..."
kubectl_version=$(get_latest_version)
fi
echo "Preparing to install kubectl version $kubectl_version..."
install_kubectl "$kubectl_version"