How do I check container logs in Kubernetes?
You can see the logs of a particular container by running the command kubectl logs <container name> . Here's an example for Nginx logs generated in a container. If you want to access logs of a crashed instance, you can use –previous . This method works for clusters with a small number of containers and instances.Viewing logs with Kubernetes

You can view individual log streams (stdout or stderr, for example), but most people just view all the logs for more context. In the event that you only want to view logs that have been generated within a certain time period, then you can use the –since flag to provide that functionality.Here are some options:

  1. Use a node-level logging agent that runs on every node.
  2. Include a dedicated sidecar container for logging in an application pod.
  3. Push logs directly to a backend from within an application.

Where is Containerd log : containerd is running as a service of Linux, so you can check its logs with journalctl -u containerd . Save this answer. Also in Containerd (as CRI) you can find containers log in /var/log/pods/ path.

How do I view container logs in pod

Therefore, if a pod has a single container, you can use the kubectl logs <pod_name> to retrieve its logs. However, if the pod has multiple containers, you can use the kubectl logs <pod_name> <container_name> to retrieve the logs of a specific container. Additionally, you can use the -f flag to stream logs in real-time.

How do I view running container logs : The docker logs command shows information logged by a running container. The docker service logs command shows information logged by all containers participating in a service. The information that's logged and the format of the log depends almost entirely on the container's endpoint command.

Here are some of the most common techniques for collecting logs from containerized environments.

  1. Logging via Docker Logging Drivers.
  2. Direct vs. Non-blocking Log Delivery.
  3. Logging via the Application.
  4. Persisting Logs Using Data Volumes.
  5. Using a Dedicated Logging Container.


Using kubectl logs Command

We can use this command to retrieve logs of a specific container running in a pod. In this command, we'll replace <pod-name> with the name of the pod and <container-name> with the name of the container whose logs we want to view.

What are container logs in Kubernetes

In Kubernetes, there are two main levels of logging: Container-level logging – Logs are generated by containers using stdout and stderr , and can be accessed using the logs command in kubectl. Kubernetes has log drivers for each container runtime, and can automatically locate and read these log files.The EFK stack comprises Fluentd, Elasticsearch, and Kibana. These tools work well with one another and together represent a reliable solution used for Kubernetes monitoring and log aggregation. Fluentd collects logs from pods running on cluster nodes, then routes them to a central​​​​​​ized Elasticsearch.The docker logs command shows information logged by a running container. The docker service logs command shows information logged by all containers participating in a service. The information that's logged and the format of the log depends almost entirely on the container's endpoint command.

Using kubectl

  1. –previous=true will show logs from terminated pods, useful if you want to view logs from containers that have crashed/errored.
  2. –all-containers=true useful if you have multiple containers in a pod, or you can use -c to select a specific container.

How do I access container logs in container runtime : To view logs for a specific container, you can use the docker logs command and specify the container name or ID. To view the logs for the Docker daemon and other Docker system components, you can use the docker logs command without specifying a container ID or name.

Where are container logs stored in Kubernetes : Servers write application and environment events to logs in a configured text file. For example, Kubernetes logs are stored in Linux to files such as /var/log/containers/app.

How do you check logs for pods and containers in Kubernetes

To get a list of available pods in your cluster, run the below command:

  1. $ kubectl get pods.
  2. # This returns a snapshot of the logs from the pod.
  3. $ kubectl logs -f event-simulator.
  4. kubectl logs [POD name] [-c CONTAINER name] [–follow] [flags]
  5. kubectl logs [pod-name] –all-containers=true.
  6. kubectl logs -p [pod-name]


The most common logging agent used in Kubernetes is Fluentd, which is an open-source data collector that can collect, transform, and forward log data to various destinations, including Elasticsearch, Splunk, and Kafka. Other popular logging agents include Logstash and Fluent Bit.Kubernetes logs can come from the container orchestration system and from containerized applications. Kubernetes system components include the Kubernetes Scheduler, kube-proxy, kubelet, and the container runtime. The Kubernetes scheduler and kube-proxy run inside a container and always write logs to the local. /var/log.

How do I get full docker logs : The Docker daemon log can be viewed by using one of the following methods:

  1. By running journalctl -u docker. service on Linux systems using systemctl.
  2. /var/log/messages , /var/log/daemon. log , or /var/log/docker. log on older Linux systems.