kubernetes debug service

Concept GroomingIn order to solve the above-mentioned problem, Kubernetes does not need to find a way, after all, is the network security level of the problem, every service will encounter problems, the industry has a mature solution to solve. Here we look at industry scenarios and related concepts. Symmetric encryption/Asymmetric encryptionThese two concepts belong to cryptography, which is not e

we have changed the port that the Python app listens to, so we need to rewrite the environment variable Sa_logic_api_url):$ docker run -d -p 8080:8080 -e SA_LOGIC_API_URL='http://3. Run the Sa-frontend container:docker run -d -p 80:80 $DOCKER_USER_ID/sentiment-analysis-frontendAnd then it's ready. Open localhost:80 in the browser.Note: If you change the port of Sa-webapp, or use the IP of the Docker machine, then you need to update the app.js in Sa-frontend and let Analyzesentence get the URL f

Tail-f/var/log/messagenov1409:39:09imagejournal:w111409:39:09.943633 1controller.go:386]Resettingendpointsformasterservice " Kubernetes "to{{}{kubernetesdefault/api/v1/namespaces/default/ Endpoints/kubernetes17553a6b-c907-11e7-b180-fa163ee5f1502002302017-11-1406:43:15 +0000utcWorkaround:Append the--apiserver-count=n to the Api-server configuration file, and then restart the ApiserverThis article is from the "ipcpu" blog, make sure to keep this source

"] HelloTest.dll"]3. Copy the packaged package and Dockerfile to the node virtual machine4. Package Docker imageDocker build-t hello-test:1.0.0.Using the Helm Deployment Blueprint (Chart)Here is how to complete the deployment of the above two microservices via helm.1. Create chartHelm Create Hello-test2. Put the appropriate deployment script in the Templates directory3. Package ChartHelm Package Hello-test4. Check ChartHelm Lint Hello-testThe chart icon is missing, but not affected, and can be

configuration key, that flannel queries# for Address range assignmentflannel_etcd_prefix= "/atomic.io/network"# any additional options-want to pass#FLANNEL_OPTIONS = ""3. Add ETCD Network Configuration[Master][Email protected] ~]# mkdir-p/atomic.io/network/[Email protected] ~]# chmod-r 777/atomic.io[[email protected] ~]# etcdctl mk/atomic.io/network/config ' {"Network": "10.254.0.0/16"} '****** Note: This IP is in/etc/kubernetes/apiserver {kube_servi

Kubernetes Cluster Deployment DNS ServiceIn Kubernetes each service will be assigned a virtual IP, each service under normal circumstances will not change for a long time, this is relative to the pod of the indefinite IP, the use of the cluster app is relatively stable.But the service's information injected into the po

The content of this article has been validated based on k8s v1.8.8. K8s Service defines the access entry address of a server, the front-end application accesses a cluster of pod replicas behind it through this entry address, and the access requests from outside are load balanced to each container application on the back end. Between the service and the back-end pod replica cluster, the docking is done throu

collection must know the addresses of all other nodes, but when a container is rearranged, its IP address changes. For example, all containers within a kubernetes share an IP address that changes after the pod is rearranged. In kubernetes, this problem can be resolved by contacting the Kubernetes service with the Mong

Recently, Bocloud Boyun novel formally received the CNCF and Linux Fund certified Kubernetes Service Provider qualification (KCSP), which proves Bocloud Boyun novel activities in the Kubernetes community (including active contribution code), business model supporting enterprise end users , as well as the presence of engineers on the site of the three sides have t

Configure the dashboard service for a Kubernetes Cluster This article describes how to create and use kube-ui (also called dashboard) based on the previous article. This is essentially an api interface for connecting webui to the master. It obtains information about the k8s cluster through the api and then displays it on the web, which is more friendly to users, it is not very useful. 1. Download image file

Docker+kubernetes (k8s) micro-service container Practice": HTTPS://PAN.BAIDU.COM/S/16RTL8DBMFUWJKEKZRD9EMW"Let's get started.What is Kubernetes?Kubernetes (k8s) is an open source platform for automating container operations, including deployment, scheduling, and Inter-node cluster expansion. If you've ever used Docker

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

Tags: composition instance provider application Application class version style implementationThe lifespan of kubernetes pods is limited and they are not resurrected, so although each pod has its own IP address, these IP addresses are unreliable and disappear as the pod dies. This poses a problem, if some of the pod's collections (called backends) are other pods of the cluster (called frontends), how do these frontends find and always know which backe

As early as half a year ago, the company began to implement the container deployment scheme Appos, although the publishing interface is too geek, very obscure, but carefully studied really feel very powerful, after the implementation of the container, computing resources (CPU, memory) utilization can be greatly improved, reduce the number of servers, thereby saving technical costs. Coincidentally, a number of friends in the start-up companies are also recently trying to do micro-services, contai

I. Introduction of COREDNSKubernetes includes the DNS server Kube-dns for service discovery. The DNS server leverages Skydns's libraries to provide DNS requests for kubernetes pods and services. SkyDNS2 's author, Miek Gieben, created a new DNS server, Coredns, which was built with a more modular, extensible framework. Infoblox has partnered with Miek to use this DNS server as a substitute for kube-dns.CORE

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

Author: Peng Jingtian The node nodes of Kubernetes are composed of Kubelet, Kube-proxy, flannel, dockerd four components, this paper mainly analyzes the functions and principles of kube-proxy components. Pod is the smallest unit of resource allocation in kubernetes and the smallest entity to perform tasks. Each pod has a separate IP on the flannel overlay network. Pod Communication in node nodes is impleme

Services deployed by users on Kubernetes typically run on private networks, and pod and service provide parameters such as Hostport,nodeport to expose these service ports to K8S nodes for user access. There are obvious drawbacks to this approach:1) Easy to occupy excessive host port;2) service ports exposed to multiple

Service account for Kubernetes Service Account RoleThe service account is designed to facilitate the process within the pod to invoke the Kubernetes API or other external services. Service Account Usage ScenariosProcesses ru

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