To remediate the “Publish Throughput Capacity Should Be Between 4 and 16” misconfiguration on GCP using GCP CLI, follow these steps:

1. Open the Cloud Shell in the GCP Console.

2. Run the following command to set the maximum publish throughput for the Pub/Sub topic to 16:

   gcloud pubsub topics update TOPIC_NAME --update-attribute=maximumPublishThroughput=16
   

   Replace TOPIC_NAME with the name of the Pub/Sub topic that needs to be remediated.

3. Verify that the maximum publish throughput has been set to 16 by running the following command:

   gcloud pubsub topics describe TOPIC_NAME --format="get(messageStoragePolicy.maximumPublishThroughput)"
   

   Replace TOPIC_NAME with the name of the Pub/Sub topic that was remediated.

   The output of the command should be 16.

4. If the maximum publish throughput needs to be set to a value between 4 and 16, run the following command instead:

   gcloud pubsub topics update TOPIC_NAME --update-attribute=maximumPublishThroughput=VALUE
   

   Replace TOPIC_NAME with the name of the Pub/Sub topic that needs to be remediated, and replace VALUE with the desired maximum publish throughput value between 4 and 16.

   Verify that the maximum publish throughput has been set to the desired value by running the command in step 3 again.

To remediate the “Publish Throughput Capacity Should Be Between 4 and 16” misconfiguration in GCP using Python, you can follow these steps:

1. Install the Google Cloud Pub/Sub client library for Python using the following command:

pip install google-cloud-pubsub

2. Authenticate the client by setting the environment variable GOOGLE_APPLICATION_CREDENTIALS to the path of your service account key file:

export GOOGLE_APPLICATION_CREDENTIALS=/path/to/service_account_key.json

3. Use the google.cloud.pubsub_v1.PublisherClient class to get the current throughput capacity of the topic:

from google.cloud import pubsub_v1

project_id = "your-project-id"
topic_name = "your-topic-name"

publisher = pubsub_v1.PublisherClient()
topic_path = publisher.topic_path(project_id, topic_name)

topic = publisher.get_topic(topic_path)
current_throughput = topic.publish_throughput_quota

4. If the current throughput capacity is outside the desired range of 4 to 16, update the topic’s throughput capacity using the google.cloud.pubsub_v1.types.UpdateTopicRequest class:

from google.cloud.pubsub_v1.types import UpdateTopicRequest

if current_throughput < 4 or current_throughput > 16:
    new_throughput = max(4, min(16, current_throughput))
    update_request = UpdateTopicRequest(
        topic=topic_path,
        topic_pb=pubsub_v1.types.Topic(
            name=topic_path,
            publish_throughput_quota=new_throughput
        ),
        update_mask=pubsub_v1.types.FieldMask(
            paths=["publish_throughput_quota"]
        )
    )
    publisher.update_topic(update_request)

This will update the topic’s throughput capacity to the nearest value within the range of 4 to 16.