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This article mainly shows you "kubernetes how to achieve troubleshooting in Service", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "kubernetes how to achieve troubleshooting in Service" this article.

1. View the definition and usage of a resource

Kubectl explain

Kubectl explain pod

DESCRIPTION:

Pod is a collection of containers that can run on a host. This resource is created by clients and scheduled onto hosts.

FIELDS:

ApiVersion

APIVersion defines the versioned schema of this representation of an

Object. Servers should convert recognized schemas to the latest internal

Value, and may reject unrecognized values. More info:

Https://git.k8s.io/community/contributors/devel/api-conventions.md#resources

Kind

Kind is a string value representing the REST resource this object

Represents. Servers may infer this from the endpoint the client submits

Requests to. Cannot be updated. In CamelCase. More info:

Https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds

Metadata

Standard object

two。 View the status of Pod

Kubectl get pods

Kubectl describe pods my-pod

3. Monitor changes in Pod statu

Kubectl get pod-w

You can see the phase changes for all the pod in a namespace.

4. View Pod's log

Kubectl logs my-pod

Kubectl logs my-pod-c my-container

Kubectl logs-f my-pod

Kubectl logs-f my-pod-c my-container

5. Interactive Debug

Kubectl exec my-pod-it / bin/bash

Kubectl top pod POD_NAME-containers

6.Pod 's last words

The definition of Pod specifies the path to the last words log file in the container through .spec.containers [] .terminationMessagePath. The default value is / dev/termination-log. This file will be saved throughout the life cycle of Pod. Each time a new Pod is created, a file will be created on the host and then mounted to the Pod container. These files will not be lost due to the destruction of the container, so the container can write the last words to this file to facilitate troubleshooting.

These are all the contents of the article "how to troubleshoot kubernetes in Service". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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