kubernetes service

The problem of network error in Kubernetes System environment#系统版本cat /etc/redhat-releaseCentOS Linux release 7.4.1708 (Core)#kubelet版本kubelet --versionKubernetes v1.10.0#selinux状态getenforceDisabled#系统防火墙状态systemctl status firewalld● firewalld.service - firewalld - dynamic firewall daemonLoaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)Active: inactive (dead) Docs: man:firewalld(1) Pod anomaly Problem#d

: { "auths" : { } }　　3. KUBECTL configuration of development terminalCreate the C:\Users\xin.kube\config.json file, configure the k8s connection and key, and the file contents are as follows: apiVersion: v1 clusters: - cluster: server: http://182.61.xx.xxx:8001 name: minikube contexts: - context: cluster: minikube user: minikube name: minikube current-context: minikube kind: Config preferences: {} users: - name: minikube user: as-user-extra: {}　　4, the

# Kubectl get rc# Kubectl get svc# Kubectl get pod # Kubectl describe pod redis-slave-gsk1p The main reason for pod creation failure is that the image cannot be pulled from the local warehouse. This error is reported even if the image already exists locally. Because kubernetes's imagePullPolicy obtains the image policy, the default value is Always. The nginx in our local repository is configured with basic verification, so the following error is reported:Error syncing pod, skipping: failed to

-controller.yaml # kubectl create -f redis-slave-controller.yaml # kubectl create -f frontend-controller.yaml # kubectl create -f redis-master-service.yaml # kubectl create -f redis-slave-service.yaml # kubectl create -f frontend-service.yaml # kubectl get rc# kubectl get svc# kubectl get pod# kubectl describe pod redis-slave-gsk1pThe reason why the pod could not be created is that the image cannot be pulled from the local repository, even if the image is already present locally. Because Kuberne

createdreplicationcontroller/nginx-test createdservice/nginx-test created[[emailprotected] ~]# kubectl get pod -n testNAME READY STATUS RESTARTS AGEnginx-test-ssbnr 1/1 Running 0 4mnginx-test-zl7vk 1/1 Running 0 4m[[emailprotected] ~]# kubectl get service -n testNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEnginx-test NodePort 10.68.145.112 As you can see, ng

Kubernetes about the service exposure is mainly through the Nodeport way, through the binding minion host of a port, then the pod request forwarding and load balancing, but this way the defect is The service may have many, if each is bound to a node host port, the host needs to open the perimeter of a heap of ports to make services calls, management conf

1. PrefaceKubernetes designed a special network model that deviates from the native Docker network model. In this design, Kubernetes defines an abstract concept: pods, each pod is a collection of containers, and there is a shared IP, and all containers share the same network namespace. Pods can communicate not only with physical machines, but also between containers across the network. Kubernetes's ip-per-pod design idea has many benefits, such as: Fr

to the build image. In addition, OPS will want this OpenStack lifecycle management system to span bare metal, IaaS, and even PAAs.What Atomic, Docker, Kubernetes bringIf you have an OpenStack service lifecycle management scenario, the following benefits can be created: Isolated, lightweight, portable, detachable The service relationship of the

Kubernetes is a distributed cluster of Google's Docker based, with the following main components　　ETCD: High-availability storage sharing configuration and service discovery, used as a companion to flannel on Minion machines, to enable Docker running on each minion to have different IP segments The ultimate goal is to make the Docker Containner running on different minion have an IP address that is not the

: -Mountpath: /etc/ssl/certs name:ca-certificates readonly:true -Mountpath:/varName:Grafana-Storage env: -Name:Influxdb_host value:Monitoring-Influxdb-Name:Gf_server_http_port value: " the"# The following env variables is required to make Grafana accessible via # the Kubernetes API-ServerProxy. on Production clusters,We recommend # Removing these env variables,Setup Auth forGrafana,and expose the Grafana #

1.1. What is Kubernetes?A new approach to distributed architecture based on container technologyA complete distributed system support platformKubernetes is an open source project launched by the Google team, which aims to manage containers across multiple hosts, provide basic deployment, maintenance, and use scaling, primarily to implement the language as the Go language.1.2. Basic ConceptsNode: In Kubernetes