apiVersion: v1
kind: Service
metadata:
  name: airflow
spec:
  selector:
    app: airflow
  ports:
    - port: 8080
      targetPort: 8080
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: airflow
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: airflow
  template:
    metadata:
      labels:
        app: airflow
    spec:
      containers:
        - name: airflow
          image: ${AIRFLOW_IMAGE}
          args: ["standalone"]
          env:
            - name: AIRFLOW__CORE__EXECUTOR
              value: LocalExecutor
            - name: AIRFLOW__CORE__LOAD_EXAMPLES
              value: "false"
            - name: AIRFLOW__DATABASE__SQL_ALCHEMY_CONN
              valueFrom:
                secretKeyRef: {name: airflow-connections, key: SQL_ALCHEMY_CONN}
            - name: AIRFLOW_CONN_APP_DB
              valueFrom:
                secretKeyRef: {name: airflow-connections, key: AIRFLOW_CONN_APP_DB}
            - name: AIRFLOW__CORE__FERNET_KEY
              valueFrom:
                secretKeyRef: {name: airflow, key: FERNET_KEY}
            - name: _AIRFLOW_WWW_USER_USERNAME
              valueFrom:
                secretKeyRef: {name: airflow, key: ADMIN_USER}
            - name: _AIRFLOW_WWW_USER_PASSWORD
              valueFrom:
                secretKeyRef: {name: airflow, key: ADMIN_PASSWORD}
          ports:
            - containerPort: 8080
          volumeMounts:
            - name: dags
              mountPath: /opt/airflow/dags
          readinessProbe:
            httpGet:
              path: /health
              port: 8080
            # First boot runs the whole migration before it serves anything.
            initialDelaySeconds: 60
            periodSeconds: 15
            failureThreshold: 20
      volumes:
        - name: dags
          configMap:
            name: airflow-dags
            optional: true