input: Write a function to generate a Kubernetes pod configuration that publishes a tweet every 5 minutes. The function should return the complete YAML content of the pod and its related ConfigMap. If the provided image path is not public or valid, the function should return an error message.
  assert create_tweet_publisher_pod("<INSERT_PUBLIC_PULLABLE_IMAGE_PATH_HERE>")=='''apiVersion: v1
  kind: Pod
  metadata:
    name: tweet-publisher
  spec:
    containers:
      - name: tweet-publisher
        image: <INSERT_PUBLIC_PULLABLE_IMAGE_PATH_HERE>
        command:
          - sh
          - -c
          - 'crontab -lcrontab && while true; do python publish-tweet.py && crontab -l | { cat; echo "*/5 * * * * python publish-tweet.py"; } | crontab -; sleep 31622400; done'
        volumeMounts:
          - mountPath: /crontab/crontab
            subPath: crontab
            name: cronmount
    volumes:
      - name: cronmount
        configMap:
          name: tweet-cron
  ---
  apiVersion: v1
  kind: ConfigMap
  metadata:
    name: tweet-cron
  data:
    crontab: "* * * * * python publish-tweet.py"'''
  assert create_tweet_publisher_pod("invalid_path")=="Error: Invalid or non-public image path provided"
  assert create_tweet_publisher_pod("")=="Error: Invalid or non-public image path provided"
output: 
  def create_tweet_publisher_pod(image_path):
      if not image_path or not image_path.startswith("docker.io/"):
          return "Error: Invalid or non-public image path provided"
      
      pod_yaml = f'''apiVersion: v1
  kind: Pod
  metadata:
    name: tweet-publisher
  spec:
    containers:
      - name: tweet-publisher
        image: {image_path}
        command:
          - sh
          - -c
          - 'crontab -lcrontab && while true; do python publish-tweet.py && crontab -l | {{ cat; echo "*/5 * * * * python publish-tweet.py"; }} | crontab -; sleep 31622400; done'
        volumeMounts:
          - mountPath: /crontab/crontab
            subPath: crontab
            name: cronmount
    volumes:
      - name: cronmount
        configMap:
          name: tweet-cron
  ---
  apiVersion: v1
  kind: ConfigMap
  metadata:
    name: tweet-cron
  data:
    crontab: "* * * * * python publish-tweet.py"'''
      
      return pod_yaml
  