Read at start

orders is logging too little to debug a customer's failed checkout. Its log level comes from the LOG_LEVEL key of the orders-config ConfigMap.

kubectl edit configmap orders-config opens the live object in your editor and saves it back when you do. But a container reads its environment once, when it starts: kubectl exec POD -- printenv LOG_LEVEL shows what a running pod really has. kubectl rollout restart replaces the pods, gradually, so the new ones read the new value.