Questions tagged [kubectl]

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Kubernetes configuration with yaml anchors

I have deployment.yaml file and want to reuse environment for all my deployments like this apiVersion: apps/v1 kind: Deployment metadata: name: beat spec: selector: matchLabels: app: ...
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How to get CPU and Memory usage of nodes in a specific Kubernetes instance group?

I have a couple separate instance groups, and kubectl top nodes will display the CPU and Memory usage of all nodes. I'd like to be able to just ask for the information for a specific instance group if ...
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1answer
31 views

Get all Deployments referencing given ConfigMap by the ConfigMap's name

Suppose I have a ConfigMap: apiVersion: v1 kind: ConfigMap metadata: name: london-tz-config data: SERVER_TIMEZONE: "Europe/London" I also have about 50 distinct Deployments. Let's say ...
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config.yaml is not setting up a new context

I have a kubernetes Config file such as: apiVersion: v1 kind: Config preferences: {} contexts: - context: cluster: test-sim-development namespace: test-sim user: developer name: test-sim ...
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Run 'kubectl' commands from my localhost to GKE - but via tunnelling through a bastion host

Currently... I have a GKE/kubernetes/k8s cluster in GCP. I have a bastion host (Compute Engine VM Instance) in GCP. I have allowlisted my bastion host's IP in the GKE cluster's Master authorized ...
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2answers
31 views

How do I list pod name/version across multiple clusters in Kubernetes

I have multiple clusters that I want to query and in each cluster I want to find and list the versions of the pods running in there. I've written a shell script that sets the namespace and then ...
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1answer
20 views

kubectl create deployment not has the option containerPort

When I execute kubectl create deployment nginx --image nginx --dry-run=client -o yaml it does not have options --port or --containerPort. My yaml is: apiVersion: apps/v1 kind: Deployment metadata: ...
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1answer
16 views

Running Two infinite commands on single pod/image

I have a Dockerfile with a CMD, it calls a .sh file that runs a Django app ( makemigrations, migrate and uwsgi ) And that runs fine in a pod. There's a django admin script that runs infinitely that I'...
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1answer
26 views

How to get server url from kub dashboard?

I have access to kubernetes dashboard on aws with token. And now I want to connect with kubectl, how to get server url for kubectl config?
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1answer
40 views

Accessing k8s outside of VM

I am running k8s cluster for evaluation purposes inside some vagrant box. I have external kubectl access. I was able to get PostgreSQL helm template running on the cluster. But now let say I want to ...
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1answer
472 views

Authentication Error in Kubernetes

I am new to Kubernetes. I am getting below error while creating deployments in Kubernetes. <!-- You are authenticated as: anonymous Groups that you are in: Permission you need to have (but didn'...
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1answer
35 views

Kops: How to delete the multiple SSHPublicKey

SSHPublicKey admin 2b:xx: SSHPublicKey admin 2c:yy How to remove one ssh key from the cluster ? when tried to delete via normal way, kops delete secret --name cluster-1.dev.transein.com ...
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122 views

error validating data: couldn't find type

I have following yaml file: --- apiVersion: v1 kind: pod metadata: name: Tesing_for_Image_pull.pod spec: containers: - name: mysql image: mysql ...
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1answer
155 views

Kubelet config file — > clusterDNS

clusterDNS: - "10.32.0.10" The above is a flag passed to the kubelet file, i dont know what it refers to clsuter DNS ? Is it refers to VPC CIDR or any subnet CIDR ?
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1answer
24 views

Kubernetes api service unit file

i was going through the kubernetes the hard way(kelsey), i see in the API server unit file with a cluster ip range as --service-cluster-ip-range=10.32.0.0/24 \ is it a default ip range ? my VPC ...
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1answer
36 views

Weavenet for kubernetes is showing 0/2

I'm very new to kubernetes. I thought i would first get a basic by making hands dirty by "the hard way" I followed the Linux academy, but at the networking side using weave net i am now stuck ! ...
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1answer
21 views

kubernetes How to test if an operator has already been applied

How can I check if an operator has not changed, and then not apply it? usually, I would apply an operator like this kubectl apply -f openebs.yml In an automated script, I would like to test if ...
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2answers
59 views

Kubernetes - How to show all service accounts

How do I show all service accounts In Kubernetes? I have tried kubectl get --all-namespaces all. It does not show service accounts. How can I use kubectl to list all service accounts?
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1answer
32 views

use different kubectl configs in different terminal sessions

If I run kubectl get svc, it seems to be the same across terminal sessions - how can use a local configuration that's only loaded for my current terminal session? If the answer is a local config file ...
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2answers
5k views

Copy multiple files using * wildcard from kubernetes container

I have several files named out1, out2, ... in my Kubernetes container. I want to copy them to my local computer. I am using: $ kubectl cp pod:/path/out* . But I am getting an error: tar: Removing ...