3

This works exactly in the way you're describing. You have two pods which each have a limit of 4 CPUs scheduled on the same node; so the total of the limits on that node is 8 CPUs; which is 200% of the node's physical capacity; and if the two nodes combined go over the node's physical abilities then the host kernel will time-slice available resources. For ...


2

To debug this, check the container logs and the container events. kubectl get pods Find your pod name. kubectl logs If logs don't make it obvious... kubectl get events If you deployed into a namespace, make sure to add -n to all commands. This should reveal basically everything. If you're stuck, you can also browse around the k8s dashboard if you haven'...


2

No, Kubernetes will load-balance requests to a ClusterIP across all Pods with matching labels (and passing readiness checks). It won't keep traffic within the same Node. Q: So how does the NodeLocal DNS Cache achieve to keep DNS requests local to the Node? A: When using the NodeLocal DNS Cache, it is necessary to pass a extra arg to the Kubelet of each ...


2

This looks to be answered on offcail docs here NodeLocal DNSCache improves Cluster DNS performance by running a dns caching agent on cluster nodes as a DaemonSet. With this architecture, Pods will reach out to the dns caching agent running on the same node, thereby avoiding iptables DNAT rules and connection tracking. Having a local cache will ...


2

I'm running crio 1.17.0-rc1 with kubernetes 1.17.1 on RHEL7/CENTOS7. One thing I had to do was build crio 1.17 myself because there was no package available and I read the version should match (crio 1.17 and k8 1.17). I am using systemd as the cgroup driver. I'm not sure what your issue might be, but my setup goes like this: cat /etc/sysconfig/kubelet ...


2

Going from this, your ClusterRole isn't configured to allow access to deployments, and the ClusterRole you've listed isn't properly bound to your service account. You could configure it with something like I did below as a troubleshooting measure/to make sure you're able to properly configure permissions and rule out an issue with the serviceaccount's role ...


2

They're all functionally equivalent. When you docker push or docker pull an image (or mention it in a Kubernetes manifest), all of its layers are pushed or pulled, so you always get a complete image with all of its dependencies at the point where it was built. (It turns out the versioned ubuntu images are re-released pretty routinely to include current ...


2

Possibly you are looking for this feature which is closed with no action since there are ways to work around this problem. kubeadm already allows to set taints for the joining node using the configuration file at join time (check my other answer for details on how to do that) One Other way to achieve this is by running join as usual but taking few extra ...


1

Deployments are primarily based on stateless services, where data is externalized to be stored on some other storage block or database. Using deployments for stateful services is not recommended as you will encounter scaling problems, since multiple replicas will read from the same persistent volume. Instead, StatefulSets are the best approach to stateful ...


1

Thanks to arghya-sadhu's comments on stackoverflow, I've got it working: apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: name: get-pod-and-node labels: rbac.authorization.k8s.io/aggregate-to-view: "true" rules: - apiGroups: ["metrics.k8s.io"] resources: ["pods", "nodes"] verbs: ["get", "watch", "list"] (I'm aggregating to ...


1

A storage solution for kubernetes is a pain for those of us who chose to run kubernetes on premises. What storage solution one picks would certainly depend on potential usage, a solution that will perform well for simple file operations would not pan out very well if you want to run a database in kubernetes. Given your configuration, I think "vSphere Cloud ...


1

It looks like your dockerfile has both CMD and ENTRYPOINT, so it’s highly likely that what gets invoked as a commsnd is pwsh -f /app/Start-Test.ps1 /app/Start-Test.ps1. It could be that this command gives an error, kubectl describe <your-pod> might shed some light onto what’s going on. Check this answer for details on difference between CMD and ...


1

K8s works with concept of Health Check, in your application you have some port or command/trigger that K8s can monitoring? Maybe because of that your container is not works.


1

Kubernetes can mount a ram disk for you. The answer is right there in the standard RTFM guide. https://kubernetes.io/docs/concepts/storage/volumes/#emptydir Create an emptyDir volume and set emptyDir.medium to "Memory" to build, what I interpret from the documentation to be, a dynamically sized memory file system which counts against the containers memory ...


1

To exclude a set of nodes when submitting a job in kubernetes. you should use Node affinity which is conceptually similar to nodeSelector –and will allow you to constrain which nodes your pod is eligible to be scheduled on, based on labels on the node and you should be able to use hostname. On below example i run a job to 5 completions and all are started ...


1

You can include the arguments in the deployment yaml. The official docs include examples and further customization. spec: containers: image: myimage name: myContainerName args: ["me", "yes", "https://my.url"]


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If you are running on VMs or outside of a cloud provider then manually setting this up involves several steps. The tool you will need is kubeadm (see documentation linked) and you will need to init the nodes and then kubeadm join the nodes to the master. If you are using a cloud provider, then follow the providers documentation on how to add additional ...


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I found this same error in StackOverflow, problably that you problem it's about your authentication anonymous If help you: JENKINS Authentication Fails


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Note : It is one of the Kubernetes best practices to allow termination with grace. Kubernetes waits for a specified time called the termination grace period. By default, this is 30 seconds. It’s important to note that this happens in parallel to the preStop hook and the SIGTERM signal. NOTE : Kubernetes does not wait for the preStop hook to finish.If ...


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