Cross namespace communication in Kubernetes

Cross namespace communication in Kubernetes

Cross namespace communication in Kubernetes. In this example we are going to create two independent applications and both of them will run in their own namespaces. Namespaces are like virtual clusters within the main cluster. They are mainly used for isolating group of related components. You can use namespaces for each environment in a cluster such as develop, qa, staging, sandbox, production.

In this example we are going to create two independent applications and both of them will run in their own namespaces. Namespaces are like virtual clusters within the main cluster. They are mainly used for isolating group of related components. You can use namespaces for each environment in a cluster such as develop, qa, staging, sandbox, production. Another way is using application names. In this example I am going to combine both just to make things visually obvious. If you delete a namespace, all the components within will be deleted as well. You can use kubectl config set-context --current --namespace={namespace}  command to switch between namespaces.

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