Cloud native database tutorial

Description

Once, nobody ran a database on top of Kubernetes or OpenShift. Now everyone’s doing it, and you can too.

Josh Berkus walks you through deploying and managing two different databases so you can get a taste of cloud native database hosting. You’ll learn the fundamentals of running databases in a cloud native environment regardless of your database platform and some tools to use directly with your chosen databases. Josh explores the basics of hosting databases in the container cloud (when to do it, when not to, how
storage works, and the effects on performance) and leads you step by step through setting up and administering two different database platforms on Kubernetes. You’ll first deploy PostgreSQL using operators as an example of how the cloud can enable a legacy database system, then a newer distributed database created for the cloud, Etcd.

Outline:

General considerations

• Pros and cons
• Storage options
• Performance
• New workflows

PostgreSQL

• What is Postgres and when would you use it?
• Manual or Helm-based deployment
• Operator-based deployment
• Automated high availability (HA) with Patroni
• Configuration
• Management
• Application connections
• Other options

Etcd

• What is Etcd and when would you use it?
• Operator-based installation
• Connecting to Etcd
• Automated HA
• Growing your pool

Future topics

• Other database systems
• Coming Kubernetes features
• Service mesh