shocker-list

#!/bin/sh

. "$(dirname "$(readlink -f "$0")")"/utils.sh

usage () {
cat << USAGE
  shocker-list - list containers
  Usage: shocker list

  Examples:
   $ shocker list   # list containers
USAGE
}

[ "$#" -eq 0 ] || { usage; exit 1; }

count="$(find "${container_path}" -mindepth 1 -maxdepth 1 -type d | wc -l)"
if [ "$count" -eq 0 ]; then
  printf "No containers found in ${container_path}\n" >&2
  exit 0
fi

printf "%-12s    %8s    %-18s    %s\n" 'CONTAINER_ID' 'STATE' 'IP' 'PARENT'
for container in "${container_path}"/*; do
  [ -e "$container" ] || break

  ps=$(basename "$container")
  state=$(get_state "$ps")
  ip=

  case $state in
    running)
      ansi="1;32"
      ip=$(ip netns exec "netns_$ps" ip addr 2>/dev/null \
        | sed -n "s/.*inet \([^ ]\+\) .* veth1_$ps/\1/p" \
        | tr -d "\n")
      ;;
    crashed) ansi="1;31";;
    *      ) ansi="0";;
  esac

  parent="$(cat "${container}/.parent.id" 2>/dev/null)"
  printf "%-12s    \x1b[%sm%8s\x1b[0m    %-18s    %s\n" "$ps" "$ansi" "$state" "${ip:--}" "${parent:--}"
done