I'm trying to install rancher manager on my k3s cluster running on WSL-2 but am getting

helm install rancher rancher-latest/rancher --namespace cattle-system --set hostname=<http://k3s-rancher.homelab.int|k3s-rancher.homelab.int>

Error: INSTALLATION FAILED: chart requires kubeVersion: < 1.25.0-0 which is incompatible with Kubernetes v1.25.6+k3s1

What am I doing wrong? I had previously run:

kubectl create namespace cattle-system

namespace/cattle-system created

kubectl create namespace cert-manager

namespace/cert-manager created

kubectl apply --validate=false -f <https://github.com/jetstack/cert-manager/releases/download/v1.0.4/cert-manager.crds.yaml>

<http://customresourcedefinition.apiextensions.k8s.io/certificaterequests.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/certificaterequests.cert-manager.io> created

<http://customresourcedefinition.apiextensions.k8s.io/certificates.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/certificates.cert-manager.io> created

<http://customresourcedefinition.apiextensions.k8s.io/challenges.acme.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/challenges.acme.cert-manager.io> created

<http://customresourcedefinition.apiextensions.k8s.io/clusterissuers.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/clusterissuers.cert-manager.io> created

<http://customresourcedefinition.apiextensions.k8s.io/issuers.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/issuers.cert-manager.io> created

<http://customresourcedefinition.apiextensions.k8s.io/orders.acme.cert-manager.io|customresourcedefinition.apiextensions.k8s.io/orders.acme.cert-manager.io> created

helm repo add rancher-latest <https://releases.rancher.com/server-charts/latest>

"rancher-latest" already exists with the same configuration, skipping

helm repo add jetstack <https://charts.jetstack.io>

"jetstack" has been added to your repositories

helm repo update

Hang tight while we grab the latest from your chart repositories...

...Successfully got an update from the "jetstack" chart repository

...Successfully got an update from the "rancher-latest" chart repository

Update Complete. ⎈Happy Helming!⎈

helm install cert-manager jetstack/cert-manager --namespace cert-manager --version v1.0.4

NAME: cert-manager

LAST DEPLOYED: Sat Mar 4 09:55:31 2023

NAMESPACE: cert-manager

STATUS: deployed

REVISION: 1

TEST SUITE: None

NOTES:

cert-manager has been deployed successfully!

In order to begin issuing certificates, you will need to set up a ClusterIssuer

or Issuer resource (for example, by creating a 'letsencrypt-staging' issuer).

More information on the different types of issuers and how to configure them

can be found in our documentation:

<https://cert-manager.io/docs/configuration/>

For information on how to configure cert-manager to automatically provision

`Certificates for Ingress resources, take a look at the `ingress-shim``

documentation:

<https://cert-manager.io/docs/usage/ingress/>

Well the chart says it wants k8s < 1.25

chart requires kubeVersion: < 1.25.0-0 which is incompatible with Kubernetes v1.25.6+k3s1

Is more explanation needed?

I was hoping there was a more recent chart that worked with that this version of kubernetes or an alternative approach that would work with this version

nope. Rancher doesn’t support 1.25 or 1.26 yet.