Questions tagged [k3s]
K3s is Rancher's lightweight Kubernetes distribution.
32 questions
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K3s NVIDIA Device Plugin Not Detecting GPUs: "No devices found" Error
I'm currently working with a K3s cluster and trying to set up GPU support using the NVIDIA device plugin. However, I'm encountering an issue where the plugin logs show:
E1004 13:11:10.866124 1 ...
- 31
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22
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Cannot access the service on k3s
I'm new to Kubernetes and I'm setting up my first project. The application responds with a hello world message on the '/' route. Here is my deployment file:
apiVersion: apps/v1
kind: Deployment
...
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1
vote
1
answer
124
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k3s: Error E0921 failed to connect inside namespace ... connect: connection refused
I've been doing some work with k3s, and everything was working fine. Now I'm getting the following error when I restart and I try to run the port-forward command I had previously run to get to the ...
- 2,591
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412
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How to setup a K3s cluster on netbird or tailscale?
My company is running an IoT project with a distributed K3s cluster running on OpenVPN. Some K3s nodes are installed at customer premises, usually in a SOHO LAN with NAT, some are running in the cloud ...
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38
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"Kubernetes API call failed" when installing fluxcd with k3s on nixos
I get the following error when tryingto install fluxcd. I can run kubectl commands just fine. I am running this on one of the control plane servers as I have installed k3s in HA mode. The error isn't ...
- 101
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96
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Running a Redis cluster as a DaemonSet in Kubernetes so each node has all keys
Is it possible to host a Redis Sentinel cluster as a DaemonSet and have each node have all of the keys? And then setup a service that uses internalTrafficPolicy: Local to route pods to their ...
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158
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Kubernetes (K3S) Masters on cloud and workers behind NAT
I have a working HA distributed hybrid Kubernetes (K3S) cluster with three masters running on VPS nodes.
They have public IPs and no private network (nodes spread across regions and cloud providers).
...
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112
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Discrepancy between Kubernetes node memory usage reported by kubectl top and summed pod memory usage
I'm facing a discrepancy in memory usage reporting in my Kubernetes cluster, and I'm hoping to gain some insights into what might be causing it.
When I run kubectl top pods --all-namespaces, I get the ...
- 51
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93
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The Plain HttP Request sent to Https port for passbolt deployment
I have an issue when deploying passbolt on Kubernetes through helm chart. ( I use rancher for the management UI)
Nginx controller in used for k8s ingress and target port is 443 on passbolt service.
...
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1
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39
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How to monitor k3s/rancher pods?
The problems I'm facing are these pods crash out of nowhere and I'm unable to debug why it happened. How can I monitor them?
- 99
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62
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Redefine deployment (Portainer) pvc after node failure
I have a home lab running k3s.
NAME STATUS ROLES AGE VERSION
k8s-node-001 Ready control-plane,master,worker 302d v1.27.6+k3s1
k8s-node-002 Ready worker ...
- 133
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2
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2k
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Can the K3s installed Traefik be updated independently through helm?
If k3s installs traefik and flags it as a helm chart, can it be updated through helm? When I run the commands below,
helm repo add traefik https://traefik.github.io/charts
helm repo update
helm ...
- 2,591
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1
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95
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New install of helm shows traefik and traefik-crd, but why?
When I run helm ls -A on a new install of Helm, I see,
$ helm ls -A
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
...
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0
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1
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660
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Config not found in /home/$USER/.kube/config
When I run k3s kubectl version
$ k3s kubectl version
W0730 19:46:32.066086 17273 loader.go:222] Config not found: /home/ecarroll/.kube/config
[...]
The connection to the server localhost:8080 was ...
- 2,591
0
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1
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533
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Unable to pull image from a private Docker registry with Let's Encrypt certificate in Kubernetes
I have set up a private Docker registry on my Kubernetes cluster (k3s) running on a Raspberry Pi 4. I have secured the registry with a Let's Encrypt certificate, and I can confirm that the certificate ...
- 21
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299
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Distrubuted storage PVC on k3s using OpenEBS is stuck in a pending status while provisioning - waiting on external provisioning, not sure why
I'm trying to setup distributed raid 1+0 storage on my k3s cluster running of 5 raspberry pi 4s running armbian (jammy). Currently I'm seeing the event waiting for a volume to be created, either by ...
- 21
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0
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136
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Ingress losing some settings on restart (k3s)
I'm experimenting with some Kubernetes stuff TrueNAS Scale, which comes with k3s (1.25.3) installed. I installed one of the TrueCharts apps (https://truecharts.org/) but the settings for it appear ...
- 121
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624
views
Installing k3s: zsh: not enough directory stack entries
When I install k3s, I'm getting
zsh: not enough directory stack entries.
You can see this at the bottom of the log below,
$ curl -sfL https://get.k3s.io | sh -
# Check for Ready node, takes ~30 ...
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1
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1
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11k
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With kubectl, I'm getting Unable to connect to the server: x509: certificate signed by unknown authority
When I run something with k3s, like kubectl apply, I'm getting
Unable to connect to the server: x509: certificate signed by unknown authority
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0
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2
answers
603
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Persistent Volume with Kubernetes
I have an application which consists of 2 containers which are running on an on-premise system. The responsibility of the application is to accept data from other on-premise systems and upload it to ...
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1
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610
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port forward ssh from traefik reverse proxy on docker to a k3s container
I'm running a k3s cluster (1 master + 2 workers) and a docker traefik container on the same host (master). The traefik docker container is actually doing the reverse proxy stuff for tls which is ...
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3k
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Newly installed k3s cluster on fresh OS install can not resolve external domains or connect to external resources?
I'm following the k3s tutorial for troubleshooting DNS, after step 2 "Add KUBECONFIG for user.", if run this command,
kubectl run -it --rm --restart=Never busybox --image=busybox:1.28 -- ...
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1k
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Does /etc/rancher/k3s/registries.yaml affect `k3s ctr` and `k3s crictl`?
k3s ctr launches the contianerd CLI, and k3s crictl is the CRI cli. I'm told you configure k3s authentication to the image registries using /etc/rancher/k3s/registries.yaml. Does this yaml file ...
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585
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How can you validate that registries.yaml is set properly?
I've set up my /etc/rancher/k3s/registries.yaml, how can I confirm it works without doing
k3s kubectl run c1 --image docker.io/perl:5.30
k3s kubectl logs --follow=true c1
sleep 1
k3s kubectl delete ...
- 2,591
3
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1
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3k
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How do I get k3s to authenticate with Docker Hub?
In jornalctl -u k3s, I see a bunch of errors like this
429 Too Many Requests - Server message: toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and ...
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How can I get an installation of k3s working with KubeApps? [closed]
How can I get an install of KubeApps running on K3s? What are the minimal required steps?
- 2,591
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345
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KubeApps: Invalid GetAvailablePackageSummaries response from the plugin helm.packages: ... Unable to fetch chart categories
I followed the setup instructions for k3s, and kubectl in this answer. I'm getting this error when I boot into KubeApps
An error occurred while fetching the catalog: Invalid ...
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549
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Where can I find the default arguments supplied to the internal Kublet Service in k3s?
If I want to find the default-arguments to the internal Kublet service, where can I find these documented?
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7
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1
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7k
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Where does k3s store it's "/var/lib/kubelet/config.yaml" file?
Referencing another answer here, they suggest setting
evictionHard:
imagefs.available: 1%
memory.available: 100Mi
nodefs.available: 1%
nodefs.inodesFree: 1%
In the file /var/lib/kubelet/...
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k3s: Eviction manager: attempting to reclaim" resourceName="ephemeral-storage
When I run kubectl get pods -w --namespace kubeapps I see all my pods are pending
NAME READY STATUS RESTARTS AGE
kubeapps-internal-...
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17
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2
answers
41k
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error: error loading config file "/etc/rancher/k3s/k3s.yaml": open /etc/rancher/k3s/k3s.yaml: permission denied
When I run commands under k3s kubectl, I get
$ k3s kubectl version
WARN[0000] Unable to read /etc/rancher/k3s/k3s.yaml, please start server with --write-kubeconfig-mode to modify kube config ...
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6
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1
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13k
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k3s: The connection to the server localhost:8080 was refused - did you specify the right host or port?
When I run any kubectl commands, I'm getting
The connection to the server localhost:8080 was refused - did you specify the right host or port?
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