Stack Overflow
Stack Overflow

Questions tagged [kubectl]

The Kubernetes command-line tool, kubectl, allows you to run commands against Kubernetes clusters. You can use kubectl to deploy applications, inspect and manage cluster resources, and view logs.

3648 questions
45
votes
3 answers

How can I find the list of field selectors supported by kubectl for a given resource type?

I've recently learned about kubectl --field-selector flag, but ran into errors when trying to use it with various objects. For example : $ kubectl delete jobs.batch --field-selector status.succeeded==1 Error from server (BadRequest): Unable to find…
toadjaune
  • 801
  • 1
  • 6
  • 11
45
votes
3 answers

Kubernetes Port Forwarding - Connection refused

I am getting the following error when forwarding port. Can anyone help? mjafary$ sudo kubectl port-forward sa-frontend 88:82 Forwarding from 127.0.0.1:88 -> 82 Forwarding from [::1]:88 -> 82 The error log : Handling connection for 88 Handling…
Jaf
  • 811
  • 2
  • 7
  • 9
44
votes
1 answer

Can I connect one service account to multiple namespaces in Kubernetes?

I have couple of namespaces - assume NS1 and NS2. I have serviceaccounts created in those - sa1 in NS1 and sa2 in NS2. I have created roles and rolebindings for sa1 to do stuff within NS1 and sa2 within NS2. What I want is give sa1 certain access…
rahul
  • 3,018
  • 4
  • 29
  • 28
44
votes
10 answers

How to fix issue of 'Unable to connect to the server: EOF' Kubernetes - Kubectl

When I try any kubectl command, it always returns: Unable to connect to the server: EOF I followed these…
Carlos Andres
  • 12,740
  • 7
  • 18
  • 34
42
votes
3 answers

kubernetes configmap set from-file in yaml configuration

how can I describe this command in yaml format? kubectl create configmap somename --from-file=./conf/nginx.conf I'd expect to do something like the following yaml, but it doesn't work apiVersion: v1 kind: ConfigMap metadata: name: somename …
Maoz Zadok
  • 4,871
  • 3
  • 33
  • 43
42
votes
9 answers

How do you find the cluster & service CIDR of a Kubernetes cluster?

How do you find the cluster/service CIDR for a Kubernetes cluster, once it is already running? I know for Minikube, it is 10.0.0.1/24. For GKE, you can find out via gcloud container clusters describe XXXXXXX --zone=XXXXXX | grep -e clusterIpv4Cidr…
richizy
  • 2,002
  • 3
  • 21
  • 26
40
votes
3 answers

How to generate yaml template with kubectl command?

Is it possible to generate yaml with kubernetes kubectl command ? to clarify - I'm not talking about generating yaml from existing deployments like kubectl get XXXX -o yaml, but merely about generating yamls for the very first time for pod, service,…
Andy
  • 2,706
  • 3
  • 13
  • 22
40
votes
1 answer

Kubernetes: understanding memory usage for "kubectl top node"

How do I interpret the memory usage returned by "kubectl top node". E.g. if it returns: NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% ip-XXX.ec2.internal 222m 11% 3237Mi 41% …
Kirill Kireyev
  • 401
  • 1
  • 4
  • 4
39
votes
4 answers

Getting "ErrImageNeverPull" in pods

Am using minikube to test out the deployment and was going through this link And my manifest file for deployment is like apiVersion: extensions/v1beta1 kind: Deployment metadata: name: webapp spec: replicas: 1 template: metadata: …
Prateek Naik
  • 2,522
  • 4
  • 18
  • 38
39
votes
12 answers

Kubernetes - delete all jobs in bulk

I can delete all jobs inside a custer running kubectl delete jobs --all However, jobs are deleted one after another which is pretty slow (for ~200 jobs I had the time to write this question and it was not even done). Is there a faster approach ?
Overdrivr
  • 6,296
  • 5
  • 44
  • 70
39
votes
5 answers

Can I use autocompletion for kubectl in zsh?

I daily find myself doing... $ kubectl --context=foo get pods < copy text manually > $ kubectl --context=foo logs dep1-12345678-10101 I would like to cycle through matching resources with $ kubectl --context=foo logs dep1 but this doesn't…
Plato
  • 10,812
  • 2
  • 41
  • 61
39
votes
5 answers

Is there a way to view the Kubernetes image download progress during pod initialization?

Is there a way to obtain log information about what is happening with Kubernetes after creating a pod. The kubectl get pods only provides a basic status message. In the case of downloading a large image this can take time and the kubectl log…
Alex Beggs
  • 1,187
  • 2
  • 11
  • 17
38
votes
7 answers

Homebrew Install Specific Version of Formula

Specifically kubernetes-cli. I have 1.12.0 installed. I need 1.11.x, but I don't have that installed. I've reviewed and tried every answer in this thread and nothing worked: Homebrew install specific version of formula? I've tried brew search but…
clay
  • 18,138
  • 28
  • 107
  • 192
38
votes
5 answers

Kubernetes has a ton of pods in error state that can't seem to be cleared

I was originally trying to run a Job that seemed to get stuck in a CrashBackoffLoop. Here was the service file: apiVersion: batch/v1 kind: Job metadata: name: es-setup-indexes namespace: elk-test spec: template: metadata: name:…
xamox
  • 2,599
  • 4
  • 27
  • 30
37
votes
11 answers

kubectl versions Error: exec plugin is configured to use API version client.authentication.k8s.io/v1alpha1

I was setting up my new Mac for my eks environment. After the installation of kubectl, aws-iam-authenticator and the kubeconfig file placement in default location. I ran the command kubectl command and got this error mentioned below in command…
Saravana
  • 595
  • 1
  • 6
  • 15
1 2 3
…
99 100