init

temperature-cronjob/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

temperature-cronjob/Chart.yaml

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+apiVersion: v2
+name: temperature-cronjob
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

temperature-cronjob/temperature_fetcher.py

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+# 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")
+
+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}")

temperature-cronjob/templates/configmap.yaml

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+# templates/configmap.yaml
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}-script
+data:
+  temperature_fetcher.py: |
+{{ .Files.Get "temperature_fetcher.py" | indent 4 }}

temperature-cronjob/templates/cronjob.yaml

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+# templates/cronjob.yaml
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ .Release.Name }}-cronjob
+spec:
+  schedule: "{{ .Values.schedule }}"
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          containers:
+            - name: temperature-fetcher
+              image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+              imagePullPolicy: {{ .Values.image.pullPolicy }}
+              command: ["/bin/bash", "-c"]
+              args:
+                - |
+                  echo "Running temperature_fetcher.py" && \
+                  pip install requests && \
+                  echo "Fetching temperature" && \
+                  python /scripts/temperature_fetcher.py && \
+                  sleep 300
+              env:
+                - name: CITY
+                  value: "{{ .Values.city }}"
+                - name: API_KEY
+                  value: "{{ .Values.apiKey }}"
+                - name: MOUNT_PATH
+                  value: "{{ .Values.mountPath }}"
+              volumeMounts:
+                - name: sqlite-data
+                  mountPath: "{{ .Values.mountPath }}"
+                - name: script-volume
+                  mountPath: /scripts
+          restartPolicy: OnFailure
+          volumes:
+            - name: sqlite-data
+              hostPath:
+                path: "{{ .Values.hostPath }}"
+                type: Directory
+            - name: script-volume
+              configMap:
+                name: {{ .Release.Name }}-script
+

temperature-cronjob/values.yaml

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+# values.yaml
+image:
+  repository: python
+  tag: "3.9-slim"
+  pullPolicy: IfNotPresent
+schedule: "*/1 * * * *" # Every minute
+city: "Dunlap, US"
+apiKey: "your_api_key"
+mountPath: "/data"
+hostPath: "/sqlite-data"