#!/bin/bash
# Copyright 2023 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set -Eeuo pipefail

TIMEOUT=20
PERIOD=30
RETRIES=10

export TERM=linux
export TERMINFO=/etc/terminfo

while true; do
  echo -n "[$(date)] "

  SUCCESS=false
  for i in $(seq "${RETRIES}"); do
    if timeout "${TIMEOUT}" /home/user/healthcheck.py; then
      SUCCESS=true
      break
    else
      echo -n "$? "
    fi
  done

  if "${SUCCESS}"; then
    echo 'ok' | tee /tmp/healthz
  else
    echo 'err' | tee /tmp/healthz
  fi

  sleep "${PERIOD}"
done
