If you want to get logs for a previously running Pod add the -p flag: kubectl logs -p [pod-name] Finally, to stream the logs for a Pod use the -f flag: kubectl logs -f [pod-name] kubectl logs documentation Fetch all Pods in all namespaces using kubectl get pods --all-namespaces One of the challenges that comes up as people move to Kubernetes is understanding how to get similar details about Pods and any containers running within them.
There are of course many other techniques that can be used as well to diagnose Pod issues (checking the UI Dashboard, monitoring, viewing stats about containers, and much more), but these should help get you started if you’re new to Kubernetes.To get logs for all containers in a Pod (if you have more than 1) you can run the following:You can do the same thing for a specific Deployment as well:If you’ve worked with containers a lot you’re probably good at commands like docker logs and docker exec to retrieve information about containers that may be having problems. To check the version, enter kubectl version. With this command it is also possible to get an interactive shell to a Docker container running inside a Pod. Set which Kubernetes cluster kubectl communicates with and modifies configurationinformation.
A kubectl exec command serves for executing commands in Docker containers running inside Kubernetes Pods. # Remember: Any pods that are created by the replication controller get prefixed with the name of the replication controller. Ready to get your hands dirty?
To get logs for all containers in a Pod (if you have more than 1) you can run the following: kubectl logs [pod-name] --all-containers=true. It’s great that this happens (when setup properly with a Deployment for example), but it’s also good to get to the bottom of “why” a Pod is being rescheduled to determine if there’s a bug in the code that’s running, a memory leak, or another issue. $ kubectl get pods NAME READY STATUS RESTARTS AGE sise-3210265840-k705b 1/1 Running 0 1m $ kubectl describe pod sise-3210265840-k705b | grep IP: IP: 172.17.0.3 Friday July 10th, 2020. by admin. […]In some cases describe events may lead to the discovery that the troubled Pod has been rescheduled frequently by Kubernetes. List all Container images in all namespaces. I want to get the list of pods stuck in terminating state for more than 10 minutes using Ansible. Get Pods from the particular Namespace: Running one of these commands will help provide some initial information about what may be going on with a troubled Pod/Container.
In this exercise you will use kubectl to fetch all of the Pods running in a cluster, and format the output to pull out the list of Containers for each. See Authenticating Across Clusters with kubeconfig documentation fordetailed config file information.