List docker-compose.yml ports being used in all repositories inside the current directory

report-docker-compose-port-usage.sh

#!/usr/bin/env sh
# vim: ft=sh:

# Usage: list_docker_compose_files [pattern]
list_docker_compose_files()
{
	pattern=${1:-"docker-compose.yml"}
	find . -name "${pattern}" -type f
}

for file in $(list_docker_compose_files)
do 
	grep --after-context 1 --with-filename "ports:" $file \
		| grep -v "ports:" \
		| sed s/[^0-9:]//g \
		| cut -d: -f 1 \
		| awk "BEGIN{FILE=\"${file##./}\"; OFS=\"\t\"; FIELDWIDTHS=\"10 70\"}{ if (\$1!=\"\") {print \$1,FILE}}"
done | sort -n | sed -r /^s*$/d