Fetch the SHA-256 hashes for specific versions of `kind` images

k8sversions.sh

#!/bin/bash
set -euo pipefail

# Grab the latest versions of the k8s versions you want to support, and put them in this array
# https://hub.docker.com/r/kindest/node/tags
versions=("1.19.16" "1.20.15" "1.21.12" "1.22.9" "1.23.6" "1.24.0")

# Extract the SHA-256 hash for each version
for i in "${!versions[@]}"; do
    version=${versions[$i]}
    echo $version
    docker pull "kindest/node:v$version"
    docker inspect "kindest/node:v$version" | jq ".[0].RepoDigests[0]"
done