kubectl

问题 I am trying to setup a websocket connection to the Kubernetes Pod Exec API, based on the suggestions given in this SO post: How to execute command in a pod (kubernetes) using API?. Here's what I have done so far - Installed Simple Web Socket Client extension in Chrome. Started kubectl proxy --disable-filter=true to run proxy with WS connections allowed. kubectl.exe version is 1.8. Used address ws://localhost:8001/api/v1/namespaces/default/pods/nginx-3580832997-26zcn/exec?container=nginx&stdin

问题 Is there any shortcut or kubectl command or REST API call to get a list of worker nodes only. ( not including the master nodes ) Update : For the masters we can do like this: kubectl get nodes --selector=node-role.kubernetes.io/master for the workers I dont see any such label created by default. Can we do get by reversing or do != kind of thing on selector. We can't grep it either: C02W84XMHTD5:ucp iahmad$ kubectl get nodes | grep worker C02W84XMHTD5:ucp iahmad$ C02W84XMHTD5:ucp iahmad$

问题 I am running a Kubernethes cluster with many services, I am getting the IPv4 using the command: kubectl get svc But I need also IPv6, how to get it? 回答1: IPv6 is currently not supported by Kubernetes. 来源： https://stackoverflow.com/questions/45660109/how-to-list-the-ipv6-of-a-kubernethes-service

问题 I run the following commands and when I check if the pods are running I get the following errors: Failed to pull image "tomcat": rpc error: code = Unknown desc = no matching manifest for linux/amd64 in the manifest list entries kubectl run tomcat --image=tomcat --port 8080 and Failed to pull image "ngnix": rpc error: code = Unknown desc = Error response from daemon: pull access denied for ngnix, repository does not exist or may require 'docker login' kubectl run nginx3 --image ngnix --port 80

问题 I'm looking for a kubectl command to list / delete all completed jobs I've try: kubectl get job --field-selector status.succeeded=1 But I get: enfield selector "status.succeeded=1": field label "status.succeeded" not supported for batchv1.Jobter code here What are the possible fields for --fieldSelector when getting jobs ? Is there a better way to do this ? 回答1: What you can do to list all the succeeded jobs is first get all the jobs and then filter the output: kubectl get job --all

问题 I am on the way of installing minkube 0.19.1 in Ubuntu 16.04 following the kubernetes documentation. As prerequisits I have installed kubectl and Oracle VirtualBox. When I check kubectl with kubectl version it gives following. Client Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.6", GitCommit:"7fa1c1756d8bc963f1a389f4a6937dc71f08ada2", GitTreeState:"clean", BuildDate:"2017-06-16T18:34:20Z", GoVersion:"go1.7.6", Compiler:"gc", Platform:"linux/amd64"} The connection to the server

问题 I am following this nice tutorial of How to create a scalable API with micro-services on Google Cloud using Kubernetes. I have created 4 micro-services and to expose the services I am using NGINX Plus. Note : The purpose of NGINX Plus / NGINX here is to work as reverse proxy. Below is the directory Structure : -nginx --Dockerfile --deployment.yaml --index.html --nginx-repo.crt --nginx-repo.key --nginx.conf --svc.yaml Details of files can be seen here. I am pasting the Docker file & nginx.conf

问题 Is there any resource out there that gives an overview of all the possible status conditions a kubernetes job can have? I'm wondering because I would like to check, when I run a job if it is already running and if so, exit the new job. I came across until kubectl get jobs myjob -o jsonpath='{.status.conditions[?(@.type=="Complete")].status}' | grep True ; do sleep 1 ; done quite a few times but I want to know if it is running, not if it is already complete. Would prefer not to wait (ha) for

问题 We have two pods in Kubernetes that for sake of conversation we'll call pod1 and pod2. I created pv1 and pvc1 on pod 1 and it's working fine. In my opinion the documentation is not clear enough about this scenario or I couldn't find the right wiki. How can I access pv1 and pc1 from pod2? 回答1: From the k8s documentation: A PersistentVolume (PV) is a piece of storage in the cluster that has been provisioned by an administrator. It is a resource in the cluster just like a node is a cluster

问题 How can I get the image ID (the docker sha256 hash) of a image / container within a Kubernetes deployment? 回答1: Something like this will do the trick (you must have jq installed): $ kubectl get pod --namespace=xx yyyy -o json | jq '.status.containerStatuses[] | { "image": .image, "imageID": .imageID }' { "image": "nginx:latest", "imageID": "docker://sha256:b8efb18f159bd948486f18bd8940b56fd2298b438229f5bd2bcf4cedcf037448" } { "image": "eu.gcr.io/zzzzzzz/php-fpm-5:latest", "imageID": "docker:/