Questions tagged [kubectl]
Use this tag if a question is about kubectl
34
questions
1
vote
0
answers
12
views
How to colorize kubernetes logs?
It's easy enough to enable colorful logs on docker containers (by setting TERM=xterm-256color and running with tty: True).
Still, I'm not getting any color when I run kubectl logs/stern on the ...
- 11
0
votes
0
answers
11
views
Kube MQ installation ways
(I am trying to install and use KubeMQ in a VM on a cloud, so no GUI is available.)
Kube MQ has 3 ways of installing it:
using kubectl
using docker (standalone container)
using binary files.
Could ...
- 1
1
vote
1
answer
47
views
How to run short-lived command using kubectl
I was trying to measure pod startup time buy running the following:
% kubectl run --image busybox --attach test -- date
error: timed out waiting for the condition
At first it seems like this command ...
- 121
0
votes
1
answer
832
views
It seems like the kubelet isn't running or healthy [closed]
What did I want to do here?
I want to make 3 node Kubernetes cluster
First I install Ubuntu server 20.04.3 LTS in my VMware and this way too I make 3 servers.
After I install docker and Kubernetes and ...
1
vote
0
answers
21
views
Can kubernetes `--force` delete of pods be disabled by administrators?
Using kubectl delete pods PODNAME --force removes the pod from the Kubernetes API without checking the underlying pod deleted successfully.
In most cases this means resources are locked indefinitely, ...
- 221
1
vote
2
answers
226
views
How to expose a service ( Experssjs Api ) deployed on minikube ( 192.168.49.2 ) to be able to access it from another device in the same network?
I've created a service inside minikube (expressjs API) running on my local machine, so when I launch the service using minikube service wedeliverapi --url i can access it from my browser with ...
- 13
0
votes
1
answer
52
views
kubectl retrieve update time for the resource
I'm wondering whether it's possible to get the time where my resource was updated?
e.g. via
$ kubectl describe deployment/myapp
I can see CreationTimestamp but I want to know the last time new ...
- 536
2
votes
1
answer
113
views
How to get public key from cert-manager?
I need to get a public key from cert manager from bash. How to do it properly?
I can see the private key in kubernetes secrets; how to get public key that can be safely shared?
- 121
2
votes
1
answer
80
views
HAProxy Not Working with Kubernetes NodePort for Backend (Bare Metal)
I have a host running HAProxy already. It's been up and running since before I did anything with Kubernetes. It works flawlessly as a reverse proxy and SSL terminator for various web things in ...
- 161
0
votes
1
answer
56
views
Change kubernetes resource requests after pod/job has started
I'd like to change my pod's CPU request value after a pod has started. Is this possible?
In our shared kubernetes system there is a requirement that our actual resource usage be "reasonably close&...
- 221
-2
votes
1
answer
23
views
How to read Kubernets secrets values
What could be the kubectl command to see k8s secret values
I tried
kubectl get secrets/<secrets-name> -n <namespace>
It returns
NAME TYPE DATA AGE
secrets1 Opaque ...
- 107
1
vote
1
answer
260
views
OIDC token invalid when put into kubeconfig
I can connect to the Kubernetes API from a container running inside the cluster with an OIDC token like so:
kubectl —token $token get pod
I would now like to prepare a kubeconfig such that other ...
- 141
1
vote
1
answer
45
views
Scheduling a build using Kubernetes
The doc https://docs.openshift.com/container-platform/3.9/dev_guide/cron_jobs.html provides details of creating a cron job.
To start a scheduled task that executes a build every 10 mins I use the ...
- 111
1
vote
3
answers
1k
views
kubectl asking for username (k8s cluster created via kops)
I created a kubernetes cluster using kops and deployed it in AWS (not EKS manual cluster using kops).
Then I export in my local machine the configuration like
kops export kubecfg --state ${...
- 121
1
vote
1
answer
290
views
Failed to install kubernetes on centos
Following the official documentation, I have an error when trying to install kubernetes cluster yum package.
I am on Centos 7 using yum. So I run this commands:
cat <<EOF | sudo tee /etc/yum....
- 171
4
votes
2
answers
2k
views
Kubernetes configuration with yaml anchors
I have a deployment.yaml file and want to reuse the environment for all my deployments like this:
apiVersion: apps/v1
kind: Deployment
metadata:
name: beat
spec:
selector:
matchLabels:
...
- 536
1
vote
1
answer
371
views
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 ...
- 111
1
vote
1
answer
134
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 ...
- 123
0
votes
1
answer
411
views
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
...
- 101
1
vote
2
answers
218
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 ...
- 111
1
vote
1
answer
56
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:
...
1
vote
1
answer
31
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'...
- 31
0
votes
1
answer
47
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?
- 101
0
votes
1
answer
277
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 ...
- 101
1
vote
1
answer
1k
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'...
- 109
1
vote
1
answer
115
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 ...
- 173
0
votes
1
answer
377
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
...
- 103
1
vote
1
answer
581
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 ?
- 173
1
vote
1
answer
27
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 ...
- 173
2
votes
1
answer
47
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 !
...
- 173
0
votes
1
answer
43
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 ...
- 143
4
votes
2
answers
7k
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?
- 1,153
0
votes
1
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187
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 ...
- 365
17
votes
3
answers
13k
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 ...
- 275