#!/command/with-contenv bash
# shellcheck shell=bash
# Take down the S6 supervision tree when the service fails

set -o errexit -o nounset -o pipefail

# Logs should be sent to stdout so that s6 can collect them

declare exit_code_container
exit_code_container=$(cat /run/s6-linux-init-container-results/exitcode)
readonly exit_code_container
readonly exit_code_service="${1}"
readonly exit_code_signal="${2}"
readonly service="NGINX"

echo "[INFO] Service ${service} exited with code ${exit_code_service} (by signal ${exit_code_signal})"

if [[ "${exit_code_service}" -eq 256 ]]; then
  if [[ "${exit_code_container}" -eq 0 ]]; then
    echo $((128 + exit_code_signal)) >/run/s6-linux-init-container-results/exitcode
  fi
  if [[ "${exit_code_signal}" -eq 15 ]]; then
    exec /run/s6/basedir/bin/halt
  fi
elif [[ "${exit_code_service}" -ne 0 ]]; then
  if [[ "${exit_code_container}" -eq 0 ]]; then
    echo "${exit_code_service}" >/run/s6-linux-init-container-results/exitcode
  fi
  exec /run/s6/basedir/bin/halt
fi