kubectl logs

概要

打印 Pod 或指定资源中容器的日志。如果 Pod 只有一个容器，则容器名称是可选的。

kubectl logs [-f] [-p] (POD | TYPE/NAME) [-c CONTAINER]

示例

  # Return snapshot logs from pod nginx with only one container
  kubectl logs nginx
  
  # Return snapshot logs from pod nginx, prefixing each line with the source pod and container name
  kubectl logs nginx --prefix
  
  # Return snapshot logs from pod nginx, limiting output to 500 bytes
  kubectl logs nginx --limit-bytes=500
  
  # Return snapshot logs from pod nginx, waiting up to 20 seconds for it to start running.
  kubectl logs nginx --pod-running-timeout=20s
  
  # Return snapshot logs from pod nginx with multi containers
  kubectl logs nginx --all-containers=true
  
  # Return snapshot logs from all pods in the deployment nginx
  kubectl logs deployment/nginx --all-pods=true
  
  # Return snapshot logs from all containers in pods defined by label app=nginx
  kubectl logs -l app=nginx --all-containers=true
  
  # Return snapshot logs from all pods defined by label app=nginx, limiting concurrent log requests to 10 pods
  kubectl logs -l app=nginx --max-log-requests=10
  
  # Return snapshot of previous terminated ruby container logs from pod web-1
  kubectl logs -p -c ruby web-1
  
  # Begin streaming the logs from pod nginx, continuing even if errors occur
  kubectl logs nginx -f --ignore-errors=true
  
  # Begin streaming the logs of the ruby container in pod web-1
  kubectl logs -f -c ruby web-1
  
  # Begin streaming the logs from all containers in pods defined by label app=nginx
  kubectl logs -f -l app=nginx --all-containers=true
  
  # Display only the most recent 20 lines of output in pod nginx
  kubectl logs --tail=20 nginx
  
  # Show all logs from pod nginx written in the last hour
  kubectl logs --since=1h nginx
  
  # Show all logs with timestamps from pod nginx starting from August 30, 2024, at 06:00:00 UTC
  kubectl logs nginx --since-time=2024-08-30T06:00:00Z --timestamps=true
  
  # Show logs from a kubelet with an expired serving certificate
  kubectl logs --insecure-skip-tls-verify-backend nginx
  
  # Return snapshot logs from first container of a job named hello
  kubectl logs job/hello
  
  # Return snapshot logs from container nginx-1 of a deployment named nginx
  kubectl logs deployment/nginx -c nginx-1

选项

继承的父选项

参见

• kubectl - kubectl 控制 Kubernetes 集群管理器