watch-services.sh

#!/bin/bash

# 0 - event-statistics
# 1 - villains
# 2 - heroes
# 3 - fights
# 4 - ui
statuses=("0", "0", "0", "0", "0")

max_tries=100
tries=1

get_status() {
  local port=$1
  local index=$2
  local path=$3

  case "$index" in
    0) local service_name="event-statistics" ;;
    1) local service_name="rest-villains" ;;
    2) local service_name="rest-heroes" ;;
    3) local service_name="rest-fights" ;;
    4) local service_name="ui-super-heroes" ;;
  esac

  local url="http://localhost:${port}${path}"
  local command="curl -s -o /dev/null -w \"%{http_code}\" $url"
  local result=$($command)
  echo "Pinging $service_name: $url"
#  echo "result of \"$command\"=\"$result\""
  statuses[$index]=$result
}

get_statuses() {
  if [[ "${statuses[0]}" != "\"200\"" ]]; then
    get_status 8085 0 "/q/health/ready"
  fi

  if [[ "${statuses[1]}" != "\"200\"" ]]; then
    get_status 8084 1 "/q/health/ready"
  fi

  if [[ "${statuses[2]}" != "\"200\"" ]]; then
    get_status 8083 2 "/q/health/ready"
  fi

  if [[ "${statuses[3]}" != "\"200\"" ]]; then
    get_status 8082 3 "/q/health/ready"
  fi

  if [[ "${statuses[4]}" != "\"200\"" ]]; then
    get_status 8080 4 "/"
  fi
}

print_statuses() {
  echo "event_stats_status=${statuses[0]}"
  echo "villains_status=${statuses[1]}"
  echo "heroes_status=${statuses[2]}"
  echo "fights_status=${statuses[3]}"
  echo "ui_status=${statuses[4]}"
}

while [[ "${statuses[0]}" != "\"200\"" ]] || [[ "${statuses[1]}" != "\"200\"" ]] || [[ "${statuses[2]}" != "\"200\"" ]] || [[ "${statuses[3]}" != "\"200\"" ]] || [[ "${statuses[4]}" != "\"200\"" ]]
do
  if [[ "$tries" -gt $max_tries ]]; then
    break
  fi

  echo ""
  echo "-----------------------------------"
  echo "Try #$tries"
  echo "-----------------------------------"
  get_statuses
#  print_statuses
  ((tries++))
  sleep 2
done

echo ""

if [[ "$tries" -gt $max_tries ]]; then
  echo "Not all services started within $max_tries tries!!!!!!!"
  print_statuses
else
  echo "All services are now up :)"
  echo "Super Heroes UI: http://localhost:8080"
  echo "Event stats: http://localhost:8085"
  echo "Prometheus (if started): http://localhost:9090"
fi