Similarities Between Annotations And Labels In Kubernetes
- Both annotations and labels are key-value maps. In both Annotation and labels we have a key and a corresponding value attached with it. These keys and values in both annotations and labels are strings and cannot be of any other datatype (boolean, int etc.)
- Both annotations and labels are used to attach metadata to Kubernetes resources. They are used to provide context, documentation, or categorization for resources. This metadata is then used later on by libraries and tools build upon Kubernetes.
- Both annotations and labels offer flexibility for storing data. We can use annotations and labels both to store custom metadata respective to our needs.
How to Use Kubernetes Annotations?
Annotations are key-value pairs that are used to attach non-identifying metadata to Kubernetes objects. Various tools that are built over Kubernetes use this metadata attached by annotations to perform actions or enhance resource management. Labels and Annotations are used to attach metadata to Kubernetes objects. This makes annotations important for working with Kubernetes clusters. To learn more about Kubernetes cluster and its architecture refer to Kubernetes – Architecture.