# helm_charts_configmap-scripts.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ include "airflow.fullname" . }}-scripts
  labels:
    app: {{ include "airflow.labels.app" . }}
    chart: {{ include "airflow.labels.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
data:
  install-requirements.sh: |
    #!/bin/bash -e
    if [ ! -d {{ .Values.dags.path | quote }} ]; then
      echo 'No folder {{ .Values.dags.path | quote }}'
      exit 0
    fi

    cd {{ .Values.dags.path | quote }}
    if [ -f requirements.txt ]; then
      pip install --user -r requirements.txt
    else
      exit 0
    fi
  graceful-stop-celery-worker.sh: |
    #!/bin/bash -e
    echo "*** starting graceful worker shutdown"

    # set the required environment variables
    export AIRFLOW__CELERY__BROKER_URL=$(eval $AIRFLOW__CELERY__BROKER_URL_CMD)

    # prevent the worker accepting new tasks
    echo "*** preventing worker accepting new tasks"
    celery control --broker $AIRFLOW__CELERY__BROKER_URL --destination celery@$HOSTNAME cancel_consumer default
    sleep 5

    # loop until all active task are finished
    echo "*** waiting for active tasks to finish"
    while (( celery inspect --broker $AIRFLOW__CELERY__BROKER_URL --destination celery@$HOSTNAME --json active | python3 -c "import json; active_tasks = json.loads(input())['celery@$HOSTNAME']; print(len(active_tasks))" > 0 )); do
      sleep 10
    done
  preinit-db.sh: |
    #!/bin/bash
    echo "*** Waiting 10s for database"
    sleep 10

    COUNT=0
    while [ "${COUNT}" -lt 5 ]; do
      echo "*** Initializing airflow db"
      if airflow initdb; then
        echo "*** Initdb succeeded"
        exit 0
      else
        ((COUNT++))
        echo "*** Initdb failed: waiting 5s before retry #${COUNT}"
        sleep 5
      fi
    done

    echo "*** Initdb failed after ${COUNT} retries; failed."
    exit 1