Pod (Kubernetes)
Kubernetes Pods [1][2] are the smallest deployable units that allows to deploy one or multiple containers as a single atomic unit. Pods are defined using YAML files and applied with kubectl apply command.
kubectl applykubectl create -f mypod.yml- Get a list of pods:
kubectl get pod MY_POD_NAMEkubectl delete pod MY_POD_NAMEkubectl top pod PODNAME- Get more information about a pod:
kubectl describe pod MY_POD_NAME
- List all container by pod:
kubectl get pods -o jsonpath='{range .items[*]}{"pod: "}{.metadata.name}{"\n"}{range .spec.containers[*]}{"\tname: "}{.name}{"\n\timage: "}{.image}{"\n"}{end}'
See also ReplicaSet[3] concept.
Activities
- CKA v1.23 Understand connectivity between Pods
- CKA v1.15: Create and configure a basic Pod:
kubectl apply - Create a pod network:
kubeadm init --pod-network-cidr=10.244.0.0/16
Related terms
kubernetes.io/pod/volume/utilization
- List containers on a POD
readinessProbe, livenessProbekubectl exec --stdin --tty- Kubernetes Container Lifecycle Events
See also
- Pods:
kubectl apply,kubectl [ pod get | top | delete | describe pods ],InitContainers, PodInitializing, CrashLoopBackOff, ImagePullPolicy:, NodeAffinity, NodeSelector, Terminated kubectl: [cp | config | create|delete|edit | explain |apply|exec|get|set|drain | uncordon | rolling-update|rollout|logs|run|auth|label | annotate|version|top|diff|debug|replace|describe|port-forward | proxy|scale|rollout|api-resources| expose deployment | expose | patch | attach | get endpoints | ~/.kube/config | kubectl logs --help | kubectl --help, kubectl-convert, kubectl autoscale, kubectl.kubernetes.io- CKA: v1.28: API, Namespace, Pods, secrets, Services, deployments, nodes, Volumes, Ingress, CKS
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