apiVersion: v1
kind: Namespace
metadata:
  name: temperature-cronjob-manifest
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: temperature-fetcher
  namespace: temperature-cronjob-manifest
data:
  temperature_fetcher.py: |
    # temperature_fetcher.py
    import datetime
    import os
    import requests
    import sqlite3

    print("hey im running")

    city = os.getenv("CITY")
    api_key = os.getenv("API_KEY")
    mount_path = os.getenv("MOUNT_PATH", "/data/manifest")

    try:
        response = requests.get(
            f"https://api.openweathermap.org/data/2.5/weather?q={city}&appid={api_key}&units=imperial"
        )
        response.raise_for_status()
        temp = response.json()["main"]["temp"]

        db_path = f"{mount_path}/temperature.db"
        conn = sqlite3.connect(db_path)
        c = conn.cursor()
        c.execute(
            "CREATE TABLE IF NOT EXISTS temperatures (timestamp TEXT, temperature REAL)"
        )
        c.execute(
            "INSERT INTO temperatures VALUES (?, ?)",
            (datetime.datetime.now().isoformat(), temp),
        )
        conn.commit()
        conn.close()
        print(
            f"Successfully stored temperature {temp}°C for {city} at {datetime.datetime.now()}"
        )
    except Exception as e:
        print(f"An error occurred: {e}")
---
apiVersion: batch/v1
kind: CronJob
metadata:
  name: temperature-cronjob
  namespace: temperature-cronjob-manifest
spec:
  schedule: "*/1 * * * *"
  startingDeadlineSeconds: 200 # Deadline for starting the job
  concurrencyPolicy: Forbid # Prevents concurrent runs
  successfulJobsHistoryLimit: 3 # Keeps last successful job
  failedJobsHistoryLimit: 3 # Keeps last failed job
  jobTemplate:
    spec:
      activeDeadlineSeconds: 180 # Limits how long a job can be active
      ttlSecondsAfterFinished: 100 # Cleans up finished jobs after 100 seconds
      backoffLimit: 0 # Number of retries before considering the job failed
      template:
        spec:
          containers:
            - name: temperature-fetcher
              terminationMessagePath: "/sqlite-data/termination.log"
              image: "python:3.9-slim"
              imagePullPolicy: IfNotPresent
              command: ["/bin/bash", "-c"]
              args:
                - |
                  echo "Installing dependencies" && \
                  pip install requests && \
                  echo "Fetching temperature" && \
                  python /scripts/temperature_fetcher.py
              resources:
                requests:
                  cpu: "25m"
                  memory: "8Mi"
                limits:
                  cpu: "50m"
                  memory: "16Mi"
              env:
                - name: CITY
                  value: "Dunlap, US"
                - name: MOUNT_PATH
                  value: "/data"
                - name: API_KEY
                  valueFrom:
                    secretKeyRef:
                      name: openweathermap-api-key
                      key: openweathermap-api-key
              volumeMounts:
                - name: sqlite-data
                  mountPath: "/data"
                - name: script-volume
                  mountPath: /scripts
          restartPolicy: Never
          volumes:
            - name: sqlite-data
              hostPath:
                path: "/sqlite-data"
                type: Directory
            - name: script-volume
              configMap:
                name: release-name-script