<h2>Install new CRDs and RBAC for Kube v1.16+</h2>
<p>Yes, but because of the CRDs in Helm are managed by Rancher and not Traefik, and they <a href="https://doc.traefik.io/traefik/reference/dynamic-configuration/kubernetes-crd/#definitions" rel="nofollow noreferrer">were changed upstream</a>,</p>
<blockquote>
<p>The <code>apiextensions.k8s.io/v1beta1</code> CustomResourceDefinition is deprecated in Kubernetes v1.16+ and will be removed in v1.22+. For Kubernetes v1.16+, please use the Traefik <code>apiextensions.k8s.io/v1</code> CRDs instead.</p>
</blockquote>
<p>You must install the <a href="https://doc.traefik.io/traefik/providers/kubernetes-crd/" rel="nofollow noreferrer">new CRDs and RBAC's</a>.</p>
<pre><code># Install Traefik Resource Definitions:
kubectl apply -f https://raw.githubusercontent.com/traefik/traefik/v2.10/docs/content/reference/dynamic-configuration/kubernetes-crd-definition-v1.yml

# Install RBAC for Traefik:
kubectl apply -f https://raw.githubusercontent.com/traefik/traefik/v2.10/docs/content/reference/dynamic-configuration/kubernetes-crd-rbac.yml
</code></pre>
<h2>Upgrade Traefik</h2>
<p>Then you can install the Traefik repos and upgrade Traefik,</p>
<pre><code>helm repo add traefik https://traefik.github.io/charts
helm repo update
helm upgrade traefik traefik/traefik -n kube-system
</code></pre>
<p>Now you should see that the upgrade was complete,</p>
<pre><code>❯ helm history traefik -n kube-system
REVISION    UPDATED                     STATUS      CHART                   APP VERSION DESCRIPTION     
1           Sun Aug 13 18:45:21 2023    superseded  traefik-21.2.1+up21.2.0 v2.9.10     Install complete
2           Sun Aug 13 13:48:07 2023    deployed    traefik-24.0.0          v2.10.4     Upgrade complete
</code></pre>
<hr />
<h2>Remove deprecated CRDs</h2>
<p>Now you can optionally remove the <code>traefik-crd</code> that Rancher provides, but because the crd's are versioned, you can just keep it too.</p>
<pre><code>helm delete -n kube-system traefik-crd
</code></pre>

CC BY-SA 4.0
2023-08-13T19:09:40.560Z
2023-08-13T19:09:40.560Z
Evan Carroll
<h3>remove old</h3>
<p>We can <code>uninstall</code> traefik using helm</p>
<pre class="lang-bash prettyprint-override"><code>helm uninstall traefik -n kube-system
</code></pre>
<h3>add new</h3>
<p>then install the latest version</p>
<pre class="lang-bash prettyprint-override"><code>helm repo add traefik https://traefik.github.io/charts

helm repo update

helm install traefik traefik/traefik -n kube-system
</code></pre>
<p>If updating needed, we can do it with helm values</p>
<pre class="lang-bash prettyprint-override"><code>### save the values
helm show values traefik/traefik &gt; value.yaml

### update and save
vim value.yaml

### apply 
helm upgrade traefik  traefik/traefik -f value.yaml -n kube-system

</code></pre>
<h3>check</h3>
<pre class="lang-bash prettyprint-override"><code>helm list -n kube-system
NAME        NAMESPACE   REVISION    UPDATED                                     STATUS      CHART                       APP VERSION
traefik     kube-system 3           2024-08-08 09:17:45.673772087 +0330 +0330   deployed    traefik-30.0.2              v3.1.0     
traefik-crd kube-system 1           2024-08-07 16:32:37.804433746 +0000 UTC     deployed    traefik-crd-25.0.3+up25.0.0 v2.10.5 
</code></pre>
<p>and</p>
<pre class="lang-bash prettyprint-override"><code>helm history  traefik -n kube-system 
REVISION    UPDATED                     STATUS      CHART           APP VERSION DESCRIPTION     
1           Wed Aug  7 23:04:25 2024    superseded  traefik-30.0.2  v3.1.0      Install complete
2           Thu Aug  8 09:15:08 2024    superseded  traefik-30.0.2  v3.1.0      Upgrade complete
3           Thu Aug  8 09:17:45 2024    deployed    traefik-30.0.2  v3.1.0      Upgrade complete
</code></pre>
<p>an issue you man face <a href="https://github.com/k3s-io/k3s/discussions/10683" rel="nofollow noreferrer">helm upgrade traefik dual-stack ipv6 is removed for traefik service #10683</a></p>

CC BY-SA 4.0
2024-08-08T08:11:05.170Z
2024-08-08T08:22:18.230Z
2024-08-08T08:22:18.230Z
Shakiba Moshiri
<p>If <a href="https://devops.stackexchange.com/q/18192/18965">k3s installs traefik and flags it as a helm chart</a>, can it be updated through helm? When I run the commands below,</p>
<pre><code>helm repo add traefik https://traefik.github.io/charts
helm repo update
helm upgrade traefik traefik/traefik -n kube-system
</code></pre>
<p>I get the following</p>
<blockquote>
<p>Error: UPGRADE FAILED: resource mapping not found for name: &quot;traefik-dashboard&quot; namespace: &quot;kube-system&quot; from &quot;&quot;: no matches for kind &quot;IngressRoute&quot; in version &quot;traefik.io/v1alpha1&quot;
ensure CRDs are installed first</p>
</blockquote>

CC BY-SA 4.0
2023-08-14T08:28:49.000Z
Note that K3s uses Helm Controller for deploying the built in Helm charts. 
You can tweak existing installed charts using the `HelmChartConfig` CRD.
https://docs.k3s.io/helm#customizing-packaged-components-with-helmchartconfig
AAD
<k3s><traefik>
Can the K3s installed Traefik be updated independently through helm?
Evan Carroll
# Can the K3s installed Traefik be updated independently through helm?

(Asked by: username_0 on 2023-08-13)

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 upgrade traefik traefik/traefik -n kube-system

I get the following

Error: UPGRADE FAILED: resource mapping not found for name: "traefik-dashboard" namespace: "kube-system" from "": no matches for kind "IngressRoute" in version "traefik.io/v1alpha1"
ensure CRDs are installed first

**Tags:** k3s, traefik

> **Comments:**
> **username_1**: Note that K3s uses Helm Controller for deploying the built in Helm charts.  You can tweak existing installed charts using the `HelmChartConfig` CRD. https://docs.k3s.io/helm#customizing-packaged-components-with-helmchartconfig  

---

## 2 answers

### Answer by username_0 on 2023-08-13. Score: 1 | Accepted answer

Install new CRDs and RBAC for Kube v1.16+
Yes, but because of the CRDs in Helm are managed by Rancher and not Traefik, and they were changed upstream,

The apiextensions.k8s.io/v1beta1 CustomResourceDefinition is deprecated in Kubernetes v1.16+ and will be removed in v1.22+. For Kubernetes v1.16+, please use the Traefik apiextensions.k8s.io/v1 CRDs instead.

You must install the new CRDs and RBAC's.
# Install Traefik Resource Definitions:
kubectl apply -f https://raw.githubusercontent.com/traefik/traefik/v2.10/docs/content/reference/dynamic-configuration/kubernetes-crd-definition-v1.yml

# Install RBAC for Traefik:
kubectl apply -f https://raw.githubusercontent.com/traefik/traefik/v2.10/docs/content/reference/dynamic-configuration/kubernetes-crd-rbac.yml

Upgrade Traefik
Then you can install the Traefik repos and upgrade Traefik,
helm repo add traefik https://traefik.github.io/charts
helm repo update
helm upgrade traefik traefik/traefik -n kube-system

Now you should see that the upgrade was complete,
❯ helm history traefik -n kube-system
REVISION    UPDATED                     STATUS      CHART                   APP VERSION DESCRIPTION     
1           Sun Aug 13 18:45:21 2023    superseded  traefik-21.2.1+up21.2.0 v2.9.10     Install complete
2           Sun Aug 13 13:48:07 2023    deployed    traefik-24.0.0          v2.10.4     Upgrade complete


Remove deprecated CRDs
Now you can optionally remove the traefik-crd that Rancher provides, but because the crd's are versioned, you can just keep it too.
helm delete -n kube-system traefik-crd


---

### Answer by username_2 on 2024-08-08. Score: 0

remove old
We can uninstall traefik using helm
helm uninstall traefik -n kube-system

add new
then install the latest version
helm repo add traefik https://traefik.github.io/charts

helm repo update

helm install traefik traefik/traefik -n kube-system

If updating needed, we can do it with helm values
### save the values
helm show values traefik/traefik > value.yaml

### update and save
vim value.yaml

### apply 
helm upgrade traefik  traefik/traefik -f value.yaml -n kube-system


check
helm list -n kube-system
NAME        NAMESPACE   REVISION    UPDATED                                     STATUS      CHART                       APP VERSION
traefik     kube-system 3           2024-08-08 09:17:45.673772087 +0330 +0330   deployed    traefik-30.0.2              v3.1.0     
traefik-crd kube-system 1           2024-08-07 16:32:37.804433746 +0000 UTC     deployed    traefik-crd-25.0.3+up25.0.0 v2.10.5 

and
helm history  traefik -n kube-system 
REVISION    UPDATED                     STATUS      CHART           APP VERSION DESCRIPTION     
1           Wed Aug  7 23:04:25 2024    superseded  traefik-30.0.2  v3.1.0      Install complete
2           Thu Aug  8 09:15:08 2024    superseded  traefik-30.0.2  v3.1.0      Upgrade complete
3           Thu Aug  8 09:17:45 2024    deployed    traefik-30.0.2  v3.1.0      Upgrade complete

an issue you man face helm upgrade traefik dual-stack ipv6 is removed for traefik service #10683


---

