Continuously tail logs for all Docker containers.

docker-logs-all

#!/bin/bash
set -eu

_shutdown() {
  for pid in $(jobs -p); do
    kill $pid || true
  done
}
trap _shutdown EXIT

seen=""

while true; do
    for cid in $(docker ps -q); do
    if [[ ! " $seen " =~ " $cid " ]]; then
      export seen="$seen $cid"
      docker logs -f $cid &
    fi
  done
  sleep 1
done