gistfile1.txt

#!/usr/bin/env bash
# modified from: https://itnext.io/how-to-cold-start-fast-a-java-service-on-k8s-eks-3a7b4450845d
ns=$1
pod=$2
scheduled=`kubectl -n $ns get pod $pod -o json | jq -r '.status.conditions[] | select(.type=="PodScheduled") | .lastTransitionTime' | sed 's/T/ /g' | tr -d 'Z'`
ready=`kubectl -n $ns get pod $pod -o json | jq -r '.status.conditions[] | select(.type=="Ready") | .lastTransitionTime' | sed 's/T/ /g' | tr -d 'Z'`
scheduled_epoch=`date -u -d "$scheduled" +%s`
echo "${pod} sechedualed at ${scheduled_epoch}"
ready_epoch=`date -u -d "$ready" +%s`
load_seconds=$((ready_epoch-scheduled_epoch))
echo "${pod} launch time: ${load_seconds} seconds"