What is YAML in Kubernetes
Editor to share with you what YAML is in Kubernetes, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!
Kubernetes supports YAML and JSON formats to create resource objects JSON format for message delivery between interfaces YAML format for configuration and management YAML is a concise non-markup language syntax format indentation identification hierarchy does not support tabs (tab) indentation using space indentation usually begins with two space characters followed by a space, such as a colon, comma, etc. "-" indicates the YAML format, and the beginning of a file "#" indicates a comment
View application name
Kubectl api-versions
Demo demo
Mkdir demo# edits the nginx-deployment.yaml file vim / demo/nginx-deployment.yamlapiVersion: apps/v1kind: Deploymentmetadata: name: my-nginx labels: app: nginxspec: replicas: 2 selector: matchLabels: app: nginx template: metadata: labels: app: nginxspec: containers:-name: nginx image: nginx:1.15.4 ports:-containerPort: 8 create nginx -deployment.yaml file kubectl create-f nginx-deployment.yaml# view pod node kubectl get pods# edit nginx-service.yaml file vim nginx-service.yamlapiVersion: v1kind: Servicemetadata: name: my-nginx-service labels: app: nginxspec: type: NodePort ports:-port: 80 targetPort: 80 selector: app: nginx# create nginx-service.yaml file kubectl create-f nginx-service.yaml# View Service kubectl get svc
-automatically tests the correctness of the command and does not perform the creation
Kubectl run nginx-deployment-image=nginx-port=80-replicas=2-dry-run
View the generated yaml format
Kubectl run nginx-deployment-image=nginx-port=80-replicas=2-dry-run-o yaml
-View the generated json format
Kubectl run nginx-deployment-image=nginx-port=80-replicas=3-dry-run-o json
Export an existing asset generation template
Kubectl get deploy/nginx-- export-o yaml
Save to a file
Kubectl get deploy/nginx-- export-o yaml > my-deploy.yaml
View field help information
Kubectl explain pods.spec.containers above is all the content of this article "what is YAML in Kubernetes?" 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!
