docker-letsencrypt-nginx-proxy-companion/test/tests/container_restart/run.sh

#!/bin/bash

## Test for ACME_RESTART_CONTAINER variable, with backward compatibility for LETSENCRYPT_RESTART_CONTAINER.

if [[ -z ${GITHUB_ACTIONS} ]]; then
  le_container_name="$(basename "${0%/*}")_$(date "+%Y-%m-%d_%H.%M.%S")"
else
  le_container_name="$(basename "${0%/*}")"
fi
run_le_container "${1:?}" "${le_container_name}"

# Create the ${domains} array from comma separated domains in TEST_DOMAINS.
IFS=',' read -r -a domains <<< "${TEST_DOMAINS}"

# Listen for Docker restart events
docker events \
  --filter event=restart \
  --format 'Container {{.Actor.Attributes.name}} restarted' > "${GITHUB_WORKSPACE}/test/tests/container_restart/docker_event_out.txt" &
docker_events_pid=$!

# Cleanup function with EXIT trap
function cleanup {
  # Kill the Docker events listener
  kill "${docker_events_pid}" && wait "${docker_events_pid}" 2>/dev/null
  # Remove temporary files
  rm -f "${GITHUB_WORKSPACE}/test/tests/container_restart/docker_event_out.txt"
  # Remove any remaining Nginx container(s) silently.
  for domain in "${domains[@]}"; do
    docker rm --force "${domain}" &> /dev/null
  done
  # Cleanup the files created by this run of the test to avoid foiling following test(s).
  docker exec "${le_container_name}" cleanup_test_artifacts
  # Stop the LE container
  docker stop "${le_container_name}" > /dev/null
}
trap cleanup EXIT

# Run a separate nginx container for each domain in the ${domains} array.
for domain in "${domains[@]}"; do
  if [[ "${domain}" == "${domains[0]}" ]]; then
    # Use the legacy environment variable name for the first domain to test backward compatibility.
    restart_container_env_var="LETSENCRYPT_RESTART_CONTAINER"
  else
    restart_container_env_var="ACME_RESTART_CONTAINER"
  fi

  run_nginx_container --hosts "${domain}" --cli-args "--env ${restart_container_env_var}=true"

  # Check if container restarted
  timeout="$(date +%s)"
  timeout="$((timeout + 120))"
  until grep "${domain}" "${GITHUB_WORKSPACE}"/test/tests/container_restart/docker_event_out.txt; do
    if [[ "$(date +%s)" -gt "${timeout}" ]]; then
      echo "Container ${domain} didn't restart in under one minute."
      break
    fi
    sleep 0.1
  done
done