posts/rancher-ha-install/

[giscus[bot]]

posts/rancher-ha-install/

Documentation for Techno Tim YouTube videos for all your copy pasta needs!

https://technotim.live/posts/rancher-ha-install/

[niinod]

First of all. Thanks for all the awesome videos! But I have a problem.

I followed this to get rancher working, after setting up my cluster from your k3s + ansible video.
Now, after installing rancher, and pointing rancher.lan.mydomain.io to the ip of the nginx welcome page, I still just reach the nginx welcome page. (Maybe I need to edit the nginx config? I can't find it.)

Im not sure what I need to do, to get it to redirect to rancher? is there some detail that I've missed or have I misunderstood something?

[properlyabsurd]

Tim included a link on how to configure the nginx load balancer.

https://rancher.com/docs/rancher/v2.x/en/installation/resources/k8s-tutorials/infrastructure-tutorials/nginx/

I use Traefik, so I can't give any pointers on nginx.

[xXAzazelXx]

Hey mate,

Any change you can please explain how you did that on Traefik?
I've installed k3s + ansible + Traefik as oer Tim's videos, and now im at the LoadBalancer part

[Dodoooh]

I am new to the K3S world, I created it with the awesome ansible script.

Now I have installed the cert-manager with traefik as well as Rancher.
https://technotim.live/posts/kube-traefik-cert-manager-le
https://technotim.live/posts/rancher-ha-install

But now I have the question, how can I give rancher a let's encrypt tls certificate? With the example for NGNIX it worked fine, but rancher is installed differently, so I don't really understand this.

Thanks a lot

[pabloaugusto]

And we who choice Kube-VIP as LB at ks3 config yaml?
Whats the best way to catch the IP from KUBE-VIP LB?

[xXAzazelXx]

Thank you for this!
Has anyone managed to get Rancher to work on the latest k3s folling ansible deploy?
I think th elatest kube is too new

Error: INSTALLATION FAILED: chart requires kubeVersion: < 1.28.0-0 which is incompatible with Kubernetes v1.29.2+k3s1

[pabloaugusto]

Max k3s supported version for rancher, at this momment, is v1.27 https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/rancher-v2-8-2/ change your install settings to v1.27+k3s1 in order to work with rancher ;)

[xXAzazelXx]

Thank you!

[guyein]

Followed carefully but for some reason when got to install cert-manager helm chart step, I get:

Error: INSTALLATION FAILED: cannot re-use a name that is still in use

[jyyyeung]

Try replacing install with upgrade

[pabloaugusto]

Error: INSTALLATION FAILED: cannot re-use a name that is still in use

Google + Stackoverflow S2

https://stackoverflow.com/questions/70464815/cannot-install-kubernetes-helm-chart-error-cannot-re-use-a-name-that-is-still-i

[thenbirdpan]

I am currently hitting a issue were Rancher is not getting a external ip.
I have followed all the steps provided.
Does anyone have any idea what I could be doing wrong?

Note I followed the HA tutorial and only changing the k3s version, and this a Pi4 Cluster

kubectl -n cattle-system rollout status deploy/rancher
deployment "rancher" successfully rolled out

kubectl get nodes
NAME STATUS ROLES AGE VERSION
kube-master-1 Ready control-plane,etcd,master 40m v1.28.10+k3s1
kube-master-2 Ready control-plane,etcd,master 39m v1.28.10+k3s1
kube-worker-2 Ready 38m v1.28.10+k3s1

kubectl get svc --all-namespaces -o wide
NAMESPACE NAME EXTERNAL-IP
cattle-fleet-system gitjob "none"
cattle-provisioning-capi-system capi-webhook-service "none"
cattle-system rancher "none"
cattle-system rancher-webhook "none"
cert-manager cert-manager "none"
cert-manager cert-manager-webhook "none"
default kubernetes "none"
kube-system kube-dns "none"
kube-system metrics-server "none"
metallb-system webhook-service "none"