heapster | Compute Resource Usage Analysis and Monitoring of Container | Monitoring library
kandi X-RAY | heapster Summary
kandi X-RAY | heapster Summary
RETIRED: Heapster is now retired. See the deprecation timeline for more information on support. We will not be making changes to Heapster.
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QUESTION
I've been Googling and going through logs to try and solve this, but I can't seem to get microk8s to work on my Raspberry Pi, running Ubuntu 20.10
I snap install v1.15 sudo snap install microk8s --classic --channel=1.15/stable
I can confirm that microk8s.status returns that it is running. kubectl get nodes --namespace kube-system returns:
...ANSWER
Answered 2021-May-10 at 11:12Found the issue was with microk8s, specifically containerd not working with squashFS filesystem with overlay.
The reason for my Ubuntu install using SquashFS was that I was using Berryboot to support multiple OS installations.
I switched to Pinn, which supports ext4 filesystem, which works with containerd and reinstalled Ubuntu 20.04.
After installing microk8s, the node starts running and containers are all now running correctly.
QUESTION
After getting my k8s cluster up and going I faithfully deployed the following WebUI dashboard using the command:
...ANSWER
Answered 2020-Oct-26 at 12:51It looks like the kubernetes-dashboard's serviceaccount doesn't have access to all kubernetes resources (in particular, it can't access the metric server service).
To fix this you should create a new ServiceAccount for the dashboard and give it more permissions.
Here's one that I found on another similar post (be careful since it will give admin privileges to the dashboard, and whoever uses it will be able to destroy/create new or existing resources on your kubernetes cluster):
QUESTION
I'm using a bitnami kubernetes image on a AWS EC2 Instance.
kubectl cluster-info says
...ANSWER
Answered 2020-Jul-14 at 17:08Looks like you created the secret my-secret
in default namespace but the deployment app-config-service
is running in kube-system
namespace and hence can not refer to my-secret
using imagePullSecrets
. Creating the secret my-secret
in kube-system
namespace should solve the issue.
QUESTION
I did a small deployment in K8s using Docker image but it is not showing in deployment but only showing in pods. Reason: It is not creating any default namespace in deployments.
Please suggest:
Following are the commands I used.
...ANSWER
Answered 2020-Jun-12 at 03:24Check version of kubectl using kubectl version
From kubectl 1.18 version kubectl run
creates only pod and nothing else. To create a deployment use kubectl create deployment
or use older version of kubectl
QUESTION
I am running a Kubernetes cluster on GKE and I noticed that in kube-system the IP addresses of pods with
...ANSWER
Answered 2020-Apr-28 at 17:40This is because pods such as kube proxy , Fluentd, Prometheus are running in host network directly via hostNetwork: true
. You can describe those pods and verify that hostNetwork: true
is present.
Now coming to the point why these pods need to run in host network in the first place , kube proxy needs access to host's IP tables, prometheus collects metrics and Fluentd collects logs from the host system.
You can just deploy a sample pod such as nginx with hostNetwork: true
and it will get node IP.If you remove hostNetwork: true
it will get IP from pod CIDR range.
QUESTION
I am new with kubernettes. But I have installed ubuntu-server to my raspberry pi and now I am trying to forward the port for the dashboard.
I don't have any success, almost nothing happens and I can't see the dashboard in the cluster-info.
I tried following command:
...ANSWER
Answered 2020-Apr-04 at 13:46Nothing is frozen - the command for port-forward is running in the foreground. If you have setup the service properly with the right port number everything should be working fine.
Try running the same as a background process, by adding & at the end.
microk8s kubectl port-forward -n kube-system service/kubernetes-dashboard 10443:443 &
If you want to kill it. Get the pid
ps -aef
and then kill it using the below command
kill -9 pid-here
QUESTION
My main task is to create a Jenkins Node from an EC2 instance/server.
Jenkins server it's on EKS deployed via jx
ANSWER
Answered 2020-Apr-01 at 16:28After experimenting all day...
I came with a solution, it's not the best or straight forward but at least it's working. My slave is connected! INFO: Connected
So, I edited the jenkins-agent
service and from type: ClusterIP
I changed to type: LoadBalancer
. That gave me a new fresh loadbalancer and after I decided to add the port 8080
because in the service yaml file it's using the same selector
as in jenkins
service.
(jenkins-agent service yaml)
QUESTION
I was looking into Kubernetes Heapster and Metrics-server for getting metrics from the running pods. But the issue is, I need some custom metrics which might vary from pod to pod, and apparently Heapster only provides cpu and memory related metrics. Is there any tool already out there, which would provide me the functionality I want, or do I need to build one from scratch?
...ANSWER
Answered 2018-Aug-23 at 09:44What you're looking for is application & infrastructure specific metrics. For this, the TICK stack could be helpful! Specifically Telegraf can be set up to gather detailed infrastructure metrics like Memory- and CPU pressure or even the resources used by individual docker containers, network and IO metrics etc... But it can also scrape Prometheus metrics from pods. These metrics are then shipped to influxdb and visualized using either chronograph or grafana.
QUESTION
I am create a influxdb deployment in kubernetes cluster(v1.15.2),this is my yaml file:
...ANSWER
Answered 2020-Mar-04 at 03:43You can try kubectl describe deploy monitoring-influxdb
to get some high-level view of the deployment, maybe some information here.
For more detailed logs, first get the pods: kubectl get po
Then, request the pod logs: kubectl logs
QUESTION
I'm wondering if there is a proper naming convention for generated pod names in Kubernetes. By generated pod names I mean the name displayed in both kubectl get pods
or, for instance, by querying the heapster api:
ANSWER
Answered 2020-Feb-25 at 11:07if you use deployments, for sake of human operators you'll find your pods names as -<[0-9a-z]{5}>
where replicaset is -
. For kubernetes it self, naming of pods is irrelevant.
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