kubernetes external dns

:/ Readiness port:8080 scheme:http initialdelayseconds:30 timeoutseconds:5 Name:healthzimage:docker.gaoxiaobang.com/kubernetes/exechealthz:1.0ResourcesLimitscpu:10mMemory:20miRequests:cpu:10mMemory:20miArgs -cmd=nslookup kubernetes.default.svc.cluster.local localhost >/dev/null -port=8080Ports containerport:8080Protocol:tcpVolumes Name:etcd-storageEmptydir: {}Dnspolicy:default 4. Create the Skydns service

Outline: ? How to discover services in Kubernetes ? How to discover the services provided by pod ? How to use service discovery Services ? How to use the Kube-dns discovery service ? Kube-dns principle ? Composition ? Domain name format ? Configuration Note: this share is based on the

:10.222.0.100 Ports:-Name:dns port:53 Protocol:udp-name:dns-tcp port:53 protocol:tcpExecute this YAML file:kubectl create -f coredns.yamlTo view file status:[[emailprotected] ~]# kubectl get pods -n kube-systemNAME READY STATUS RESTARTS AGEcoredns-77c989547b-2rg9h 1/1 Running 0 1hcoredns-77c989547b-cbj5h 1/1 Running 0 1h[[emailprotected] ~]# kubectl get rs -n kube-systemNAME

This article will be based on the previous article on the configuration of the DNS service in the Kubernetes cluster environment, in the k8s cluster, pod life cycle is short, pod restart IP address will change, for the application this is unacceptable, in order to solve this problem, The k8s cluster cleverly introduces the DNS service to realize the discovery of

Service discovery mechanism Kubernetes provides two ways to discover the service:1. Environment Variables When the pod is running, Kubernetes writes the information for the service that existed before This method requires that the pod must be started after the service. The pod that was started before the service will not have an environment variable for that service. There is no such limit in the way

Outline: How to discover services in KubernetesHow to discover how pod-provided services use the Service Discovery service to use the Kube-dns discovery service Kube-dns principleCompose domain name format configuration Note: This share is based on the Kubernetes 1.2 version. Let's start with a simple example. 1. How to discover service in

The core issue in Kubernetes architecture is how data is persistance, although it provides persistent volumn, but it is difficult to run and manage products like databases in a kubernetes cluster environment. Kubernetes provides endpoints this mode to map external services into internal services, which solves the probl

[TOC]After DNS is installed, the pod can resolve the service through DNS to enable communicationKubernetes version:kubectl version My current version is 1.9.0.1, kubectl DNS installation 1.1 Download the configuration file on the official websitehttps://github.com/kubernetes/kube