Questions tagged [kubectl]
Use this tag if a question is about kubectl
23
questions
0
votes
0answers
14 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 ...
0
votes
1answer
27 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 ${...
0
votes
0answers
11 views
Doing kubectl rollout undo causing current and previous replicasets persists
I am using kubectl for Kubernetes based deployments.
I created a deployment that gone to crashloopbackoff state. Then for correcting this issue, a rolling update was done. But the deployment failed ...
1
vote
1answer
82 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....
1
vote
2answers
379 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:
...
0
votes
1answer
181 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 ...
1
vote
1answer
44 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 ...
0
votes
1answer
68 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
...
1
vote
2answers
39 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 ...
1
vote
1answer
31 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
1answer
21 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'...
0
votes
1answer
33 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?
0
votes
1answer
91 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 ...
1
vote
1answer
960 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'...
1
vote
1answer
46 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 ...
0
votes
1answer
206 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
...
1
vote
1answer
260 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 ?
1
vote
1answer
25 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 ...
2
votes
1answer
44 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 !
...
0
votes
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 ...
0
votes
2answers
136 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?
0
votes
1answer
51 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 ...
13
votes
2answers
7k 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 ...
