syno_docker_list_containers.sh

#!/bin/bash

# Store container information in an array
containers_info=()
readonly NOT_COMPOSE="!---not_managed_by_compose---!"
readonly MAYBE_PORTAINER="!---maybe_managed_by_portainer---!"

# Get the list of containers and their compose locations
for c in $(docker ps -q); do
    container_info=$(docker inspect "$c" --format "{{.Name}} {{if index .Config.Labels \"com.docker.compose.project.config_files\"}}{{index .Config.Labels \"com.docker.compose.project.config_files\"}}{{else}}${NOT_COMPOSE}{{end}} {{.HostConfig.LogConfig.Type}}") 
	containers_info+=("$container_info")
done

# Sort the array based on the second field (compose location)
IFS=$'\n' sorted_containers_info=($(printf "%s\n" "${containers_info[@]}" | sort -u -t " " -k 2))

# Calculate the maximum length for the container names and compose locations
max_container_length=0
max_location_length=0
max_logger_length=7
for info in "${sorted_containers_info[@]}"; do
    container=$(echo "$info" | awk '{print $1}')
    location=$(echo "$info" | awk '{print $2}')
	logger=$(echo "$info" | awk '{print $3}')
    [ ${#container} -gt $max_container_length ] && max_container_length=${#container}
    [ ${#location} -gt $max_location_length ] && max_location_length=${#location}
    [ ${#logger} -gt $max_logger_length ] && max_logger_length=${#logger}
done

# Print the header
echo
printf "%-${max_container_length}s  %-${max_location_length}s %-${max_logger_length}s\n" \
  "Container" "Compose_Location" "Logger"
printf "%-${max_container_length}s  %-${max_location_length}s %-${max_logger_length}s\n" \
  "$(printf '%*s' "${max_container_length}" '' | tr ' ' '-')" \
  "$(printf '%*s' "${max_location_length}" '' | tr ' ' '-')" \
  "$(printf '%*s' "${max_logger_length}" '' | tr ' ' '-')"

docker_managed=()
# Print the sorted container information
for info in "${sorted_containers_info[@]}"; do
    container=$(echo "$info" | awk '{print $1}')
    location=$(echo "$info" | awk '{print $2}') # for spaces>>    | sed -e 's/^[^ ]* //')
    logger=$(echo "$info" | awk '{print $3}')
	if [ "$location" != "$NOT_COMPOSE" ] && [ ! -f $location ];then
		location="${MAYBE_PORTAINER}"
	fi
	if [ "$location" == "$NOT_COMPOSE" ]; then
		docker_managed+=("$container")
	fi
	printf "%-${max_container_length}s  %-${max_location_length}s %s\n" "$container" "$location" "$logger"
done

if [ ${#docker_managed[@]} -gt 0 ]; then
	# There are containers not managed by compose nor portainer.
	# Provide some clues on how to restart those containers.
	echo
	echo "The following containers may have been created with docker commands."
	echo "Below are some clues on the command needed to to recreate them ONLY IF YOU HAVE NO OTHER WAY TO DO SO."
	echo "...this is a best guess and may not be 100% accurate."
        echo "If all containers already show as 'local' logger, there is no need to recreate them manually"
 	echo
	for container in "${docker_managed[@]}"; do
		docker_command=$(./container_recreate.sh $container)
		echo "----------------------------------------------------"
		echo "Container: ${container}"
		echo "----------------------------------------------------"
		echo -e "$docker_command"
		echo
	done
fi