list-resources.sh

#!/usr/bin/env bash
set -e

printf "%-50s %5s %7s %5s %7s\n" Name CPU Memory CPU Memory

kubectl get pods -Ao json | jq -r '.items[] | tojson' | while read -r line; do
  echo "${line}" | jq -r '.spec.containers[] | tojson' | while read -r item; do
    name=$(echo "${line}" | jq -r .metadata.name)
    resources=$(echo "${item}" | jq -r '.resources | tojson')
    if [ $(echo "${resources}" | jq -r 'to_entries | length') -gt 0 ]; then
      requests_cpu=$(echo "${resources}" | jq -r .requests.cpu)
      requests_memory=$(echo "${resources}" | jq -r .requests.memory)
      limits_cpu=$(echo "${resources}" | jq -r .limits.cpu)
      limits_memory=$(echo "${resources}" | jq -r .limits.memory)
      if [ ${requests_cpu} != null ] || [ ${requests_memory} != null ] || [ ${limits_cpu} != null ] || [ ${limits_memory} != null ]; then
        printf "%-50s %5s %7s %5s %7s\n" ${name} ${requests_cpu} ${requests_memory} ${limits_cpu} ${limits_memory}
      else
        echo "${item}" | jq -r .resources
      fi
    fi
  done
done