Configuration Management

Overview

Application configurations are usually injected through environment variables. The values of these configurations can be extracted and stored in ConfigMap. ConfigMap saves the configuration information in the Key-Value form.
When deploying an application, you can set environment variables by referencing the ConfigMap Key, rather than directly assigning values. This allows you to manage configuration information in a central place, in order to share configuration information in mulitple deployments of an application and among applications.