8. Connecting an app to an Azure database
In previous chapters, we stored the state of our application in our cluster, either on a Redis cluster or on MariaDB. You might remember that both had some issues when it came to high availability. This chapter will take you through the process of connecting to a MySQL database managed by Azure.
We will discuss the benefits of using a hosted database versus running StatefulSets on Kubernetes itself. To create this hosted and managed database, we will make use of Open Service Broker for Azure (OSBA). OSBA is a way to create Azure resources, such as a managed MySQL database, from within a Kubernetes cluster. In this chapter, we will explain more details about the OSBA project and we will set up and configure OSBA on our cluster.
We will then make use of OSBA to create a MySQL database in Azure. We will use this managed database as part of a WordPress application. This will show you how you can connect an application to a managed database...