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[Ubuntu] Improve kubectl installation script with retry logic and keyring checks (#12570)

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* [Ubuntu] Fix kubectl error

* [Ubuntu] Remove dependencies
This commit is contained in:
kishorekumar-anchala
2025-07-15 20:29:19 +05:30
committed by GitHub
parent 372fde29d0
commit 4423d3872f
1 changed files with 15 additions and 2 deletions
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17
images/ubuntu/scripts/build/install-kubernetes-tools.sh
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@@ -20,8 +20,21 @@ use_checksum_comparison "${kind_binary_path}" "${kind_external_hash}"
install "${kind_binary_path}" /usr/local/bin/kind install "${kind_binary_path}" /usr/local/bin/kind
## Install kubectl ## Install kubectl
kubectl_minor_version=$(curl -fsSL "https://dl.k8s.io/release/stable.txt" | cut -d'.' -f1,2 )
curl -fsSL https://pkgs.k8s.io/core:/stable:/$kubectl_minor_version/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg # Ensure keyrings directory exists only if it doesn't already
[ -d /etc/apt/keyrings ] || sudo mkdir -p -m 755 /etc/apt/keyrings
kubectl_minor_version=$(curl -fsSL --retry 5 --retry-delay 10 "https://dl.k8s.io/release/stable.txt" | cut -d'.' -f1,2 )
# Download and validate GPG key
key_url="https://pkgs.k8s.io/core:/stable:/$kubectl_minor_version/deb/Release.key"
if curl -fsSL --retry 5 --retry-delay 10 -A "Mozilla/5.0" "$key_url" | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg; then
echo "Key downloaded and stored successfully."
else
echo "Failed to download valid GPG key from: $key_url"
exit 1
fi
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/'$kubectl_minor_version'/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/'$kubectl_minor_version'/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
apt-get update apt-get update
apt-get install kubectl apt-get install kubectl