services:
  db-redis-healthcheck:
    image: stephenc/postgresql-cli:latest
    command:
      - "sh"
      - "-c"
      - >-
        apk --no-cache add curl;
        sleep 30;
        while true; do
          pg_output=$$(pg_isready -d ${DJANGO_DATABASE_URL} 2>&1);
          pg_exit_code=$$?;
          if [ $$pg_exit_code -eq 0 ]; then
            pg_success="true";
            pg_error="";
          else
            pg_success="false";
            pg_error="$$pg_output";
          fi;
          curl -s -f -X POST \
            --connect-timeout 10 \
            --max-time 15 \
            --header "Authorization: Bearer ${GATUS_TOKEN}" \
            http://health:8080/api/v1/endpoints/services_database/external?success=$$pg_success&error=$$pg_error || true
          if [ "$$pg_success" = "true" ]; then
            echo " Database is OK";
          else
            echo "Database is not OK: $$pg_output";
            exit 1;
          fi;

          redis_output=$$(echo -e "ping\nquit" | curl -v --max-time 10 --connect-timeout 10 telnet://redis:6379 2>&1 | grep -q "+PONG");
          redis_exit_code=$$?;
          if [ $$redis_exit_code -eq 0 ]; then
            redis_success="true";
            redis_error="";
          else
            redis_success="false";
            redis_error="$$redis_output";
          fi;
          curl -s -f -X POST \
            --connect-timeout 10 \
            --max-time 15 \
            --header "Authorization: Bearer ${GATUS_TOKEN}" \
            http://health:8080/api/v1/endpoints/services_cache/external?success=$$redis_success&error=$$redis_error;
          if [ "$$redis_success" = "true" ]; then
            echo " Redis is OK";
          else
            echo "Redis is not OK: $$redis_output";
            exit 1;
          fi;
          sleep 60;
        done
    env_file:
      - .env
    labels:
      - "deployment.core=true"
  loba:
    image: haproxy:3.1
    stop_signal: SIGTERM
    restart: always
    ports:
      - 443:443
    env_file:
      - .env
    volumes:
      - ./haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg
      - ./certs:/certs
    labels:
      - "deployment.core=true"
  feedback:
    restart: always
    image: getfider/fider:stable
    labels:
      - "enable_gatekeeper=true"
      - "deployment.core=true"
    env_file:
      - .env
  # cadvisor:
  #   volumes:
  #     - /:/rootfs:ro
  #     - /var/run:/var/run:ro
  #     - /sys:/sys:ro
  #     - /var/lib/docker/:/var/lib/docker:ro
  #     - /dev/disk/:/dev/disk:ro
  #   privileged: true
  #   devices:
  #     - /dev/kmsg
  #   image: gcr.io/cadvisor/cadvisor:v0.52.1
  redis:
    image: redis:latest
    restart: always
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s
    labels:
      - "deployment.core=true"
  dockergen-health:
    image: nginxproxy/docker-gen:latest
    command: -wait 15s -watch /gatus/config.template.yaml /gatus/config.yaml
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./gatus:/gatus
    labels:
      - "deployment.core=true"
  dockergen-gatekeeper:
    image: nginxproxy/docker-gen:latest
    command: -wait 15s -watch /gatekeeper/gatekeepers.template.yml /gatekeeper/gatekeepers.yml -notify-sighup pkmntrade-club-gatekeeper-manager-1
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/tmp/docker.sock:ro
      - ./:/gatekeeper
    labels:
      - "deployment.core=true"
  gatekeeper-manager:
    image: docker:latest
    restart: always
    stop_signal: SIGTERM
    volumes:
      - /srv:/srv:ro
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - REFRESH_INTERVAL=60
    entrypoint: ["/bin/sh", "-c"]
    labels:
      - "deployment.core=true"
    command:
      - |
        set -eu -o pipefail
        apk add --no-cache curl

        COMPOSE_FILE_PATH="/srv/pkmntrade-club/current/gatekeepers.yml"
        PROJECT_DIR_PATH="/srv/pkmntrade-club/current"
        PROJECT_NAME_TAG="gatekeepers"
        TERMINATING="false"
        RESTARTING="false"
        STARTED="false"

        gatekeeper_down() {
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Downing gatekeepers (Project: $$PROJECT_NAME_TAG)..."
          cd "$$PROJECT_DIR_PATH"
          if ! docker compose -p "$$PROJECT_NAME_TAG" -f "$$COMPOSE_FILE_PATH" down; then
            echo "$(date +'%Y-%m-%d %H:%M:%S') [WARN]: 'docker compose down' for $$PROJECT_NAME_TAG encountered an issue, but proceeding."
          else
            STARTED="false"
          fi
        }

        gatekeeper_up() {
          if [ "$$TERMINATING" = "true" ]; then return; fi
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Upping gatekeepers (Project: $$PROJECT_NAME_TAG, File: $$COMPOSE_FILE_PATH)..."
          cd "$$PROJECT_DIR_PATH"
          if ! docker compose -p "$$PROJECT_NAME_TAG" -f "$$COMPOSE_FILE_PATH" up -d --remove-orphans; then
            echo "$(date +'%Y-%m-%d %H:%M:%S') [ERROR]: 'docker compose up' for $$PROJECT_NAME_TAG failed. Will retry."
          else
            STARTED="true"
          fi
        }

        restart_gatekeepers() {
          if [ "$$TERMINATING" = "true" -o "$$RESTARTING" = "true" -o "$$STARTED" = "false" ]; then return; fi
          RESTARTING="true"
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Restarting gatekeepers."
          gatekeeper_down
          gatekeeper_up
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Gatekeepers restarted."
          RESTARTING="false"
        }

        gatekeeper_healthcheck() {
          if [ "$$TERMINATING" = "true" -o "$$RESTARTING" = "true" -o "$$STARTED" = "false" ]; then 
            echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Gatekeeper Manager is terminating/restarting/not started. Skipping healthcheck."
            return 0
          fi
          ERROR_MSG=""
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Checking gatekeepers health..."

          num_containers=$$(docker ps -q -a --filter "label=gatekeeper" | wc -l)

          if [ "$$num_containers" -eq 0 ]; then
            ERROR_MSG="No gatekeepers found. Healthcheck failed."
          elif [ $(docker ps -q -a --filter "label=gatekeeper" --filter "status=running" | wc -l) -ne "$$num_containers" ]; then
            ERROR_MSG="Gatekeeper containers are missing or not running. Healthcheck failed."
          else
            # check for 200 status code from each gatekeeper container
            for container in $$(docker ps -q -a --filter "label=gatekeeper"); do
              if [ $$(curl -s -o /dev/null -w "%{http_code}" -H "X-Real-Ip: 127.0.0.1" http://$$container:9090/metrics) -ne 200 ]; then
                container_name=$$(docker ps -a --filter "label=gatekeeper" --filter "id=$$container" --format "{{.Names}}")
                ERROR_MSG="Gatekeeper container $$container_name is unhealthy. Healthcheck failed."
              fi
            done
          fi

          if [ "$$ERROR_MSG" != "" ]; then
            echo "$(date +'%Y-%m-%d %H:%M:%S') [ERROR]: $$ERROR_MSG"
            curl -s -f -X POST \
              --connect-timeout 10 \
              --max-time 15 \
              --header "Authorization: Bearer ${GATUS_TOKEN}" \
              "http://health:8080/api/v1/endpoints/services_gatekeeper/external?success=false&error=$$ERROR_MSG" || true
            restart_gatekeepers
            return 1
          else
            echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: All gatekeepers are OK/HEALTHY."
            curl -s -f -X POST \
              --connect-timeout 10 \
              --max-time 15 \
              --header "Authorization: Bearer ${GATUS_TOKEN}" \
              http://health:8080/api/v1/endpoints/services_gatekeeper/external?success=true&error=HEALTHY || true
          fi
        }

        handle_sigterm() {
          if [ "$$TERMINATING" = "true" ]; then return; fi
          TERMINATING="true"
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: SIGTERM received. Initiating graceful shutdown for gatekeepers."
          curl -s -f -X POST \
            --connect-timeout 10 \
            --max-time 15 \
            --header "Authorization: Bearer ${GATUS_TOKEN}" \
            http://health:8080/api/v1/endpoints/services_gatekeeper/external?success=false&error=SIGTERM%20received.%20Shutting%20down. || true
          gatekeeper_down
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Gatekeepers shut down. Gatekeeper Manager exiting."
          exit 0
        }

        handle_sighup() {
          if [ "$$TERMINATING" = "true" -o "$$RESTARTING" = "true" -o "$$STARTED" = "false" ]; then return; fi
          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: SIGHUP received."
          restart_gatekeepers
        }

        trap 'handle_sigterm' SIGTERM
        trap 'handle_sighup' SIGHUP

        echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Gatekeeper Manager started."

        echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Periodic refresh enabled: $$REFRESH_INTERVAL seconds. Initial wait started."

        while [ "$$TERMINATING" = "false" ]; do
          # 'sleep x &' and 'wait $!' allows signals to interrupt the sleep.
          # '|| true' ensures the loop continues if 'wait' is killed by a handled signal (SIGHUP/SIGTERM)
          # SIGTERM handler exits completely, so loop won't continue. SIGHUP handler doesn't exit.
          
          sleep $$REFRESH_INTERVAL &
          wait $! || true

          echo "$(date +'%Y-%m-%d %H:%M:%S') [INFO]: Periodic healthcheck and refresh triggered."

          if [ ! -f "$$COMPOSE_FILE_PATH" ]; then
            echo "$(date +'%Y-%m-%d %H:%M:%S') [ERROR]: gatekeepers.yml has not been generated after $$REFRESH_INTERVAL seconds. Please check dockergen-gatekeeper is running correctly. Exiting."
            exit 1
          fi

          if gatekeeper_healthcheck && [ "$$RESTARTING" = "false" ]; then
            gatekeeper_up
          fi

          
        done
  health:
    image: twinproduction/gatus:latest
    restart: always
    labels:
      - "enable_gatekeeper=true"
      - "deployment.core=true"
    # healthcheck:
    #   test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
    #   interval: 10s
    #   timeout: 5s
    #   retries: 5
    #   start_period: 10s
    env_file:
      - .env
    environment:
      - GATUS_DELAY_START_SECONDS=30
    volumes:
      - ./gatus:/config

networks:
  default:
    name: pkmntrade-club_network
    external: true