Health check is failing because of invalid wget options

[jamshid]

The health check needs to be updated. docker-compose ps always reports it's unhealthy:

buildenv_aptcacherng_1   /sbin/entrypoint.sh /usr/s ...   Up (unhealthy)   0.0.0.0:3142->3142/tcp          

because -0 is no longer supported by wget and there is a stray - argument being passed. The container is otherwise working fine. You can verify by exec'ing into the container.

root@d06e973fc467:/# wget -q0 - http://localhost:3142/acng-report.html
wget: invalid option -- '0'
Usage: wget [OPTION]... [URL]...

Try `wget --help' for more options.

Just change the Dockerfile to (updated to not write an .html file ever 2s!):

HEALTHCHECK --interval=90s --timeout=5s --retries=3 \
    CMD wget -q -o /dev/null http://localhost:3142/acng-report.html || exit 1

Users of docker-compose.yml can do this themselves with:

version: '3.7'

volumes:
  aptcache:

x-common: &common
  restart: always
  init: true

services:

  aptcacherng:
    image: sameersbn/apt-cacher-ng
    <<: *common
    deploy:
      resources:
        limits:
          memory: ${CACHER_MEM-256m}
    volumes:
      - aptcache:/var/cache/apt-cacher-ng
    ports:
      - "${PUBLISH_IP}3142:3142"
    healthcheck:
      test:  wget -q  http://localhost:3142/acng-report.html || exit 1
      interval: 10s
      timeout: 2s
      retries: 3

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[eddyg]

This issue should be re-opened...

[sameersbn]

was fixed in #25