This document discusses how to create a Kafka cluster using Confluent Cloud and run a "hello world" example. It outlines installing the Confluent Cloud CLI, logging in, selecting an existing cluster, creating a Kafka topic, generating an API key, running a Kafka consumer in the background to consume from the topic, and using the Kafka producer to send messages to the topic. This allows one to publish and subscribe to streaming data between a producer and consumer using Confluent Cloud and Apache Kafka.

1. How To Cloud #1
Create Kafka cluster with
Confluent Cloud

2. Apache Kafka

3. Apache Kafka
● Data streaming platform
● Publish/subscribe model
● Something between message broker and database

5. New Confluent Cloud cluster

7. Hello world with ccloud
# Run new Fedora container
$ docker run -it fedora
# Install Confluent Cloud
$ curl -L https://cnfl.io/ccloud-cli | sh -s -- -b /usr/bin
# Login
$ ccloud login
# Find your cluster
$ ccloud kafka cluster list | grep henry
# Select your cluster as default
$ ccloud kafka cluster use mycluster
# Create new Kafka topic
$ ccloud kafka topic create mytopic

8. Hello world with ccloud
# Create new API key for CLI client
$ ccloud api-key create
# Use created key
$ ccloud api-key use keyid
# Run Kafka consumer in the background
$ ccloud kafka topic consume mytopic
# Install top
$ dnf install procps
# Confirm that ccloud consumer is running
$ top
# Send messages to Kafka
$ ccloud kafka topic produce mytopic