Cool Developer Hub Blog Post

There’s a new cool blog post on how to get Developer Hub running, which explains a lot of the interanals as well as the usage in a short and easy way (with solutions!):\n https://blog.jromanmartin.io/rhdh-adventure/rhdh-adventure/index.html

Red Hat Kafka Q&A

Recently I attended a meeting with a customer about Red Hat Kafka and some deeper questions came up which I answered and would like to share. Here in short form:

• Is there a recommended way/tooling to visualize topics?
  • Console can be additionally installed
  • creates a private prometheus instance to scrape metrics
  • Install via new Operator: Red Hat Streams for Apache Kafka Console
• What is the recommended way for scaling/rebalancing?
  • For rebalancing: Use Cruise Control
  • finer granular config via KafkaRebalance CR
  • Scale kafka brokers via setting the replicas in the CR
• What is the best way to deploy on multiple clusters via GitOps?
  • Use the ApplicationSet object with git generators instead of AppOfApps pattern
  • You can reference external git repositories containing the values (better separation of concern)
  • Free ebooks from Red Hat describe how to do it:
    • The Path to GitOps - Chapter 4 Git workflows
    • GitOps Cookbook - Chapter 8.4 Advanced Topics - Deploy to multiple clusters
    • Another example
• Storage considerations
  • Block storage (Amazon EBS volumes, Azure Disk Storage, Google Cloud Persistent Disk, onPrem local persistent volumes)
  • Specify persistent-claim in the storage configuration of the Kafka resources.
  • Link to documentation

Tool recommendations

• dive
  A tool for exploring a docker image, layer contents, and discovering ways to shrink the size of your Docker/OCI image.