Kubernetes - Namespaces 📛

Description 👀

Namespaces provides a mechanism for isolating groups of resources within a single cluster.

• Names of resources need to be unique within a namespace, but not across namespaces.
• Intended for use in environments with many users spread across multiple teams, or projects.
• Can be used to set a resource quota

Basic Commands 📝

• list current namespaces

kubectl get namespace

• create a namespace

kubectl create namespace <namespace-name>

• delete a namespace

kubectl delete namespace <namespace-name>

• get all resources in a namespace

kubectl get all --namespace <namespace-name>

Examples 🧩

• sample namespace definition

    apiVersion: v1
    kind: Namespace
    metadata:
        name: dev
    # defined a rescource quota for the namespace
    spec:
        hard:
            pods: "10"
            requests.cpu: "4"
            requests.memory: 5GI
            limits.cpu: "10"
            limits.memory: 10Gi
  

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