ConfigMap
A Kubernetes object that allows you to store non-confidential configuration data in key-value pairs.
Description
In the context of AWS, a ConfigMap is an essential Kubernetes resource that is used to hold configuration data for applications running in a Kubernetes cluster. This object allows developers to decouple configuration artifacts from image content to keep containerized applications portable. ConfigMaps can be used to store environment-specific configurations, such as database connection strings, API keys, or service endpoints, which can then be consumed by applications as environment variables or mounted as files within the container. This feature is particularly useful for managing configurations across different environments like development, testing, and production without changing the application code. By utilizing ConfigMaps, developers can easily modify configurations without the need to rebuild or redeploy containers, enhancing the flexibility and efficiency of deployment processes in cloud environments like AWS EKS (Elastic Kubernetes Service). With this approach, teams can ensure that their applications are consistently configured across various stages of the development lifecycle.
Examples
- Storing database connection strings for an application running on AWS EKS.
- Providing feature toggle settings for a microservice architecture deployed in Kubernetes.
Additional Information
- ConfigMaps support various data formats, including JSON, YAML, and plain text.
- They can be created from files, directories, or directly from command-line input using kubectl.