rancher-users #k3d

polite-engineer-55788

09/27/2022, 4:43 PM

I created a docker network like

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docker network create --opt “com.docker.network.driver.mtu”=“1450"\
   “${DOCKER_NETWORK_NAME}” || true

polite-engineer-55788

09/28/2022, 4:13 AM

Is there away to reach the kubernetes cluster from within another docker container ?

eager-cartoon-94692

10/03/2022, 9:41 PM

Hi all, question: can someone give me some hints (or point me to some documentation) on how to properly create a client certificate that can be used to authenticate a user to a k3d cluster?

abundant-pharmacist-5287

10/09/2022, 11:17 AM

I started the simplest possible k3d cluster on Fedora 36:

k3d cluster create abc

abundant-pharmacist-5287

10/09/2022, 11:17 AM

It fails:

$ kpodall                                                                [13:10:31]

NAMESPACE   NAME                   READY  STATUS       RESTARTS   AGE

kube-system  coredns-b96499967-np7z8          1/1   Running      0       118s

kube-system  local-path-provisioner-7b7dc8d6f5-5tf6p  1/1   Running      0       118s

kube-system  helm-install-traefik-crd-vc5ff      0/1   Completed     0       119s

kube-system  helm-install-traefik-7rt4l        0/1   Completed     1       119s

kube-system  metrics-server-668d979685-2z7qx      1/1   Running      0       118s

kube-system  traefik-7cd4fcff68-hr62c         1/1   Running      0       97s

kube-system  svclb-traefik-e4c1ae56-6hbkx       0/2   CrashLoopBackOff  6 (48s ago)  97s

The traefik load balancer keeps on crashing. Is this known behavior for fedora 36? In a previous cluster this ended with a message:

Warning FailedScheduling 50m (x18 over 136m) default-scheduler 0/1 nodes are available: 1 node(s) didn't have free ports for the requested pod ports. preemption: 0/1 nodes are available: 1 No preemption victims found for incoming pod.

billowy-bird-32869

10/13/2022, 9:44 AM

Hello. I am using K3D for K3S and I would like to parametrize from the command line (or even as a variable) the value of a chart manifest used with the autodeploy feature. More explicitly, I have created a HelmChart resource in

/var/lib/rancher/k3s/server/manifests/

and in that resource, I have used spec.set to change the value of some property. The value to the property is delivered via an environment variable at the moment as I cannot think of any other way after looking at the options from k3s. Would someone have an idea, how I could parametrize my chart or if the way I have done it is correct, how do I supply the value. Thanks. Sample:

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spec:
  helmVersion: v3
  repo: <https://charts.gitlab.io>
  chart: gitlab-runner
  targetNamespace: gitlab-runners
  set:
    runners.tags: "$my_tag"

famous-motherboard-75381

10/17/2022, 10:15 AM

Hi - i jst

famous-motherboard-75381

10/17/2022, 10:17 AM

Hi I just tried to expose k3d for ssl traffic to the internal traefik. HTTP works quite fine - but adding HTTPS capabilities also work, but they do not get exposed through the nginx loadbalancer running in front. Is there any way so have TLS/HTTPS directly via the Ingress?

melodic-market-42092

10/18/2022, 10:56 AM

Anyone else frequently experiencing ImagePullBackOff errors even though the exact images referred to has been imported into the cluster with

k3d image import ..

? We are seeing this a lot in our CI, and it's difficult to debug

handsome-kilobyte-1423

10/20/2022, 5:58 AM

Hi, I want to use k3d for my local development on docker desktop container for windows10. Can someone please help?

gifted-motorcycle-96530

10/25/2022, 7:23 PM

Brand new to

k3d

and trying to convert a shell script with (literally) ~25 port settings, all for

@server[0]

to a YAML file. From my read I would need to create a YAML that looks like this (my example is incomplete, just focused on the
port
and
nodeFilters
elements):

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apiVersion: <http://k3d.io/v1alpha4|k3d.io/v1alpha4>
kind: Simple
ports:
  - port 123:456
    nodeFilters:
      - server:0
  - port 234:567
    nodeFilters:
      - server:0
  - port 345:678
    nodeFilters:
      - server:0
  - ...

Do I understand correctly? Is there a way to specify: 1. A

nodeFilters

that would apply to ALL ports, 2. A default

nodeFilters

that can be overridden if needed, and/or 3. Be able to create a group of ports and then apply the node filters to the group? Thank you in advance for the help.

gorgeous-battery-45190

10/29/2022, 6:18 PM

Can I have multiple clusters that use

--network=host

? Documentation only says there can be 1 server but it's not clear if that's in total or per cluster

gifted-motorcycle-96530

11/09/2022, 10:17 PM

I am trying to figure out how to configure ports on k3d to be able to debug a Go app running in a Docker container as a Pod using GoLand & Delve (

dlv

). See thread for details.

quick-midnight-5000

11/11/2022, 7:37 PM

Hi all, is it possible to pin Klipper to a specific IP? I can't find any clear answer in the docs on if Klipper supports specifying an IP / IP range explicitly.

great-egg-9736

11/18/2022, 2:14 AM

hi, I’m able to expose a clusterIp to map a localhost port with

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k3d cluster create --api-port 6550 -p "8081:80@loadbalancer" --agents 3

but how can I have multiple port mapping to use ingress to handle multiple k8s services/apps? I would like to do something like

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k3d cluster create --api-port 6550 -p "7001-7001:8081-80@loadbalancer" --agents 3

is that possible?

polite-engineer-55788

11/18/2022, 5:02 AM

I am trying to build a Drone Pipeline with k3d and https://ko.build and facing a resolution issue to the local registry

many-telephone-82541

11/18/2022, 1:33 PM

where can I find CA cert/key to create a kubeconfig for a external user?

big-librarian-12753

11/21/2022, 10:06 AM

hi, if there any any podman users with k3d, could you pls address my query?

curved-van-8914

12/01/2022, 10:15 PM

Hey everyone I am having this weird issue with my k3d cluster. When it starts it runs fine but after few minutes cluster stops working. I’m running k3d v3.0.0 on ubuntu18.04. Can anyone help me with this?

refined-memory-51625

12/07/2022, 8:53 PM

Hi - hopefully an easy question.... just started to play with k3d (love it so far), but where can I find more detailed docs? For example, I noticed that when I stop and the start the cluster it'll remember the state of things, which is great. But where is that saved? And, how can I modify the start-up options of a cluster? Sorry if the docs are there and I just missed it.

stocky-beard-10620

12/13/2022, 8:22 PM

Is there a way to upgrade a k3d cluster in place? I want to test the upgrade path of some larger clusters and I would like to be able to iterate and validate things locally. E.g. start with a 3-server cluster on 1.21 and upgrade to 1.22 while maintaining the stored state.

millions-sunset-36049

12/19/2022, 4:38 AM

Hello, when creating a cluster with k3d managed local registry using

registry-create

flag is it possible to specify a volume that will be used to store/cache the images? This is to allow the cache to persist in the event the cluster is deleted. I got a k3d managed local registry to work using

registry-use

and

registry-config

but unfortunately it doesn't play nice with Tilt.

some-art-28895

12/20/2022, 5:59 AM

Hello, I am looking for a guide to create a hot-reload dev environment for golang and java applications, can anyone please help?

adventurous-judge-82125

12/21/2022, 12:03 PM

Hi, I have a question towards corporate proxies. The goal is to set http_proxy, no_proxy env variables in all workloads, mostly pods, and add cert files to workloads without configuring anything about that manually. Is there a best practice for doing that?

alert-motherboard-33953

12/22/2022, 10:27 AM

good morning

alert-motherboard-33953

12/22/2022, 10:27 AM

all the sudden I started getting errors while using k3d kubectl

alert-motherboard-33953

12/22/2022, 10:27 AM

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kubectl get all
error: You must be logged in to the server (Unauthorized)

alert-motherboard-33953

12/22/2022, 10:28 AM

any ideas?

ripe-yacht-78857

12/27/2022, 10:54 AM

Hi Folks, We use k3d-action@v2 GitHub action in our CI for https://github.com/kanisterio/kanister. And recently, we have been getting into the problem that was already raised as an issue in k3s repo. I tried to use the flags that are recommended in the issue discussion but they don't seem to be working for us. After looking further we got to know that the same issue is fixed by this PR in k3s and merged on Oct 6. Since I don't see any k3d release after Aug 29, is it possible to consume the k3s version, that was released after Oct with the mentioned fix, using k3d? Thank you.

broad-laptop-19151

01/10/2023, 1:01 PM

Hi! I wonder if it is possible to configure image registries using an environment variable? I have tried setting

K3D_REGISTRY_CONFIG

, which is supposed to work if using standard Viper, to the path of my registries file, but that does not work. Any pointers? 😄