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.
Questions tagged [kubectl]
Kubernetes tag3648 questions
1
vote
1 answer
how to display nodes information with a JSON request?
I know how to use the API to perform simple request such as display node information selecting node by labels value.
For example : curl http://localhost:8080/api/v1/nodes?labelSelector=kubernetes.io/role%3Dworker3
Display informations about node…
nizery
- 21
- 4
1
vote
1 answer
How do I copy a local file to a pod's container in my minikube cluster using the Go client?
My query is pretty much what the title says, I have a local file say file.txt and I want to copy it into pod1's container container1.
If I was to do it using kubectl, the appropriate command would be :
kubectl cp file.txt pod1:file.txt -c…
infinite-blank-
- 177
- 2
- 8
1
vote
1 answer
Passing params via configMap to Spring boot application in GKE google cloud
I'm configuring app to works in Kubernetes google cloud cluster. I'd like to pass parameters to application.properties in Spring boot application via configMap. I'm trying to pass value by Environment Variable.
I've created config map in google…
Krzysztof Michalski
- 791
- 1
- 9
- 25
1
vote
1 answer
Configure Kubectl to connect to a local network Kubernetes cluster
I'm trying to connect to a kubernetes cluster running on my Windows PC from my Mac. This is so I can continue to develop from my Mac but run everything on a machine with more resources. I know that to do this I need to change the kubectl context on…
Bailey S
- 597
- 1
- 6
- 13
1
vote
1 answer
Kubectl exec running a bash command with special character
I am trying to run the following command on a pod from my local machine.
kubectl -n myns exec mypod -- /bin/bash -c "err=$(tar -cvzf /tmp/logs_aj.tgz ${all_files} 2>&1) || ( export ret=$?; [[ $err == *"No such file or directory"* ]] || exit "$ret"…
codec
- 7,978
- 26
- 71
- 127
1
vote
1 answer
Kubectl appears to be discarding standard output
I'm trying to copy the contents of a large (~350 files, ~40MB total) directory from a Kubernetes pod to my local machine. I'm using the technique described here.
Sometimes it succeeds, but very frequently the standard output piped to the tar xf…
Ed MacDonald
- 126
- 1
- 5
1
vote
1 answer
error: unexpected EOF when kubectl cp dump.rdb file to local
I have this redis instance in a pod running on 1.21 cluster.
Running kubectl cp -c redis --request-timeout=1m redis-pod:data/dump.rdb /tmp/data/dump.rdb
or
kubectl exec --request-timeout=1m -i redis-pod -- cat /data/dump.rdb > /tmp/data/dump.rdb
I…
RicHincapie
- 3,275
- 1
- 18
- 30
1
vote
1 answer
How can I expose my postgresSQL pods with LoadBalancer service?
I setup 1 master node and 2 worker nodes on bare matel server. I deploy my postgressSQL with 3 replica sets. This is my deployment file.
apiVersion: apps/v1
kind: Deployment
metadata:
name: postgres
spec:
selector:
matchLabels:
app:…
tauqeerahmad24
- 358
- 8
1
vote
1 answer
How do I delete a Kubernetes Namespace with a Cronjob?
I have a cron that's I'm testing for another project that is supposed to delete a namespace called "test" every minute.
I have set up a ServiceAccount, ClusterRole, and RoleBinding as shown below:
apiVersion: v1
kind: ServiceAccount
metadata:
…
TeeTee
- 99
- 7
1
vote
1 answer
Error when trying to create a deployment using YAML: Deployment in version "v1" cannot be handled as a Deployment
I am new to K8S and trying to create a deployment using the below YAML file.
apiVersion: apps/v1
kind: Deployment
metadata:
name: building-apps-deploy
labels:
app: kubeacademy
spec:
replicas: 2
selector:
matchlabels:
app:…
DT1421
- 23
- 1
- 3
1
vote
2 answers
Delete pods using kubectl containing a substring
When I run the command kubectl get pods | grep "apisix", I get the following data
apisix-dev-78549978b7-pvh2v 1/1 Running 6 (4m19s ago) 8m14s
apisix-dev-dashboard-646df79bf-mwkpc 1/1 …
Mahesh
- 1,117
- 2
- 23
- 42
1
vote
1 answer
JSON path semantics different in kubectl and additional printer columns in custom resource definition
I use kubectl to list Kubernetes custom resources of a kind mykind with an additional table column LABEL that contains the value of a label a.b.c.com/key if present:
kubectl get mykind…
anekdoti
- 135
- 7
1
vote
0 answers
How do you retrieve pod logs by labelSelector when using the k8s HTTP API?
I would like to collect the logs from one or more related pods using a labelSelector and the kubernetes HTTP API. However, I don't see any way to do this without first knowing all the pods names,…
Ryan Riley
- 11
- 2
1
vote
2 answers
Get logs from all pods in namespace using xargs
Is there anyway to get all logs from pods in a specific namespace running a dynamic command like a combination of awk and xargs?
kubectl get pods | grep Running | awk '{print $1}' | xargs kubectl logs | grep value
I have tried the command above…
placplacboom
- 614
- 8
- 16
1
vote
1 answer
Command for listing all the possible values you can put in the yaml
For example I want to list all the possible values I can put in the yaml file to create a Pod. I want to also look at the meanings of those values. e.g. in the container section you put in the details of the container
james pow
- 336
- 2
- 11