クラウドのぱんくず

kubectl logs

kubectl logs -n ${namespace} ${pod_name}

<output>
$ kubectl logs -n ingress-nginx ingress-nginx-controller-7657f6db5f-nbct8
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:       v1.12.0
  Build:         ba73b2c24d355f1cdcf4b31ef7c5574059f12118
  Repository:    https://github.com/kubernetes/ingress-nginx
  nginx version: nginx/1.25.5

-------------------------------------------------------------------------------

kubectl logs -f ${pod_name} -c ${container_name} 

<output>
$ kubectl logs -f echo-spring-bt95h -c echo
2025/01/11 12:02:55 start server
2025/01/11 12:02:55 image changed

kubectl get

kubectl get nodes -o wide

<output>
$ kubectl get nodes -o wide
NAME       STATUS   ROLES           AGE     VERSION   INTERNAL-IP    EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION   CONTAINER-RUNTIME
minikube   Ready    control-plane   7h35m   v1.31.0   192.168.49.2   <none>  

kubectl get pod my-first-pod -o yaml

<output>
% kubectl get pod my-first-pod -o yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: "2025-01-14T02:38:49Z"
  labels:
    run: my-first-pod
  name: my-first-pod
  namespace: default
  resourceVersion: "6929"
  uid: e6751d3b-4cbf-4ef5-aae2-24ac28aec5a4
spec:
〜略〜
  hostIP: 192.168.17.222
  hostIPs:
  - ip: 192.168.17.222
  phase: Running
  podIP: 192.168.14.65
  podIPs:
  - ip: 192.168.14.65
  qosClass: BestEffort
  startTime: "2025-01-14T02:38:49Z"

kubectl exec -it debug -- sh

<output>
$ kubectl exec -it debug -- sh
sh-4.2#  

kubectl replace -f replicaset-demo.yml

<output>
% kubectl replace -f replicaset-demo.yml
 

kubectl rollout history deployment/my-first-deployment

<output>
% kubectl rollout history deployment/my-first-deployment 
deployment.apps/my-first-deployment 
REVISION  CHANGE-CAUSE
1         <none>
2         kubectl set image deployment/my-first-deployment kubenginx=stacksimplify/kubenginx:2.0.0 --record=true

kubectl edit deployment/my-first-deployment --record=true

<output>
% kubectl edit deployment/my-first-deployment --record=true
Flag --record has been deprecated, --record will be removed in the future
deployment.apps/my-first-deployment edited