reproduce https://github.com/hashicorp/envconsul/issues/177

docker-compose.yml

services:
  consul:
    image: consul

  example:
    build: .
    depends_on:
      - consul
    volumes:
      - ./:/volume
    environment:
      CONSUL_HTTP_ADDR: consul:8500

Dockerfile

FROM python:3.10-alpine
RUN wget -O - https://releases.hashicorp.com/envconsul/0.12.1/envconsul_0.12.1_linux_amd64.zip | unzip -d /usr/bin - \
 && chmod +x /usr/bin/envconsul
COPY example.py /example.py
ENTRYPOINT ["/usr/bin/envconsul", "-log-level=debug", "-prefix=test"]
CMD ["python", "/example.py"]

example.py

#!/usr/bin/env python
import os
import signal
import time

if os.fork():
    # parent
    time.sleep(1)
    # assumes pid 1 == envconsul
    os.kill(1, signal.SIGHUP)
else:
    # child
    signal.signal(signal.SIGINT, signal.SIG_IGN)
    time.sleep(60)

Instructions

1. docker-compose up -d
2. Run this every few seconds docker-compose exec example ps -opid,ppid,pgid,stat,comm,args