kubernetes check if all images have arm64

isitarm64imageready.sh

#!/bin/bash
# Copyright 2023 kat
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Depends on https://github.com/containers/skopeo
# Example usage:
# k get pod -o yaml | grep image: | sed 's/.*image: //' | sort | uniq | xargs -P50 bash isitarm64imageready.sh

image=$1
if [[ $image != *"/"* ]]; then
        image="docker.io/library/$image"
fi
# Remove @sha256:... from image name
image=$(echo $image | cut -d'@' -f1)
# check if image has arm64 and amd64

# For each command, save output and exit code.
# If exit code is 0, then the command succeeded.
# If exit code is non-zero, then the image does not have the architecture.

# arm64
ARM64_OUTPUT=$(skopeo inspect docker://$image --override-os=linux --override-arch=arm64 2>/dev/null)
ARM64_EXIT_CODE=$?

if [ $ARM64_EXIT_CODE -ne 0 ]; then
    echo "ERROR: $image does not have arm64"
# elif check if the image .Architecture is arm64
elif [[ $(echo $ARM64_OUTPUT | jq -r '.Architecture') != "arm64" ]]; then
    echo "ERROR: $image does not have arm64"
fi

# amd64
AMD64_OUTPUT=$(skopeo inspect docker://$image --override-os=linux --override-arch=amd64 2>/dev/null)
AMD64_EXIT_CODE=$?

if [ $AMD64_EXIT_CODE -ne 0 ]; then
    echo "ERROR: $image does not have amd64"
# elif check if the image .Architecture is amd64
elif [[ $(echo $AMD64_OUTPUT | jq -r '.Architecture') != "amd64" ]]; then
    echo "ERROR: $image does not have amd64"
fi