In programming, we use .env or separate config files to store settings, configurations or variables separately from the application code.
This permits to run the application in different environments.
A ConfigMap in a Kubernetes is used to achieve the same functionality – it allows to make applications portable by decoupling environment-specific configurations from the containers.
The ConfigMap is a dictionary of configuration settings that consists of key-value pairs.
This note shows how to get the ConfigMap using the kubectl command.
Cool Tip: Create a Deployment in K8s using the kubectl command! Read more →
Kubectl – Get ConfigMap
Get ConfigMaps using the kubectl command:
$ kubectl get configmap $ kubectl get configmap --namespace <namespace_name>
Describe the ConfigMap:
$ kubectl describe configmap <configmap_name>
Get the ConfigMap in YAML:
$ kubectl get configmap <configmap_name> -o yaml
Get the ConfigMap and save it to a file:
$ kubectl get configmap <configmap_name> -o yaml > my-configmap.yaml
Cool Tip: How to set a default Namespace in a Kubernetes! Read more →