Move helm chart out of the source tree

.github/workflows/publish_helm_chart.yml

@@ -23,7 +23,7 @@ jobs:
       # It replaces the line that starts with "version: " with "version: <tag version>"
       - name: Add tag version to Chart.yaml
         run: |
-          sed -i "s/version: .*/version: \"${{ github.ref_name }}\"/" src/zenml/zen_server/deploy/helm/Chart.yaml
+          sed -i "s/version: .*/version: \"${{ github.ref_name }}\"/" helm/Chart.yaml
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2
         with:
@@ -48,5 +48,5 @@ jobs:
           REGISTRY_ALIAS: zenml
           REPOSITORY: zenml
         run: |-
-          helm package src/zenml/zen_server/deploy/helm
+          helm package ./helm
           helm push $REPOSITORY-${{ github.ref_name }}.tgz oci://$REGISTRY/$REGISTRY_ALIAS

.github/workflows/release_prepare.yml

@@ -81,8 +81,8 @@ jobs:
       # Update the README, pyproject.toml, version and helm files
       - name: Update main files
         run: |
-          sed -i "s/${{ needs.fetch-versions.outputs.old_version }}/${{ needs.fetch-versions.outputs.new_version }}/g" README.md pyproject.toml src/zenml/VERSION src/zenml/zen_server/deploy/helm/Chart.yaml src/zenml/zen_server/deploy/helm/README.md
-          git add README.md pyproject.toml src/zenml/VERSION src/zenml/zen_server/deploy/helm/Chart.yaml src/zenml/zen_server/deploy/helm/README.md
+          sed -i "s/${{ needs.fetch-versions.outputs.old_version }}/${{ needs.fetch-versions.outputs.new_version }}/g" README.md pyproject.toml helm/Chart.yaml helm/README.md
+          git add README.md pyproject.toml src/zenml/VERSION helm/Chart.yaml helm/README.md
       # Update the Quickstart references
       - name: Replace the references in the quickstart example
         run: |

docs/book/how-to/manage-zenml-server/upgrade-zenml-server.md

@@ -43,30 +43,32 @@ Optionally also perform a backup before the upgrade.
 {% endtab %}
 
 {% tab title="Kubernetes with Helm" %}
-To upgrade your ZenML server Helm release to a new version, follow the steps below:
+To upgrade your ZenML server Helm release to a new version, follow the steps below.
 
-* Pull the latest version of the Helm chart from the ZenML GitHub repository, or a version of your choice, e.g.:
+## Simple in-place upgrade
+
+If you don't need to change any configuration values, you can perform a simple in-place upgrade that reuses your existing configuration:
 
 ```bash
-# If you haven't cloned the ZenML repository yet
-git clone https://github.com/zenml-io/zenml.git
-# Optional: checkout an explicit release tag
-# git checkout 0.21.1
-git pull
-# Switch to the directory that hosts the helm chart
-cd src/zenml/zen_server/deploy/helm/
+helm -n <namespace> upgrade zenml-server oci://public.ecr.aws/zenml/zenml --version <VERSION> --reuse-values
 ```
 
-* Simply reuse the `custom-values.yaml` file that you used during the previous installation or upgrade. If you don't
-  have it handy, you can extract the values from the ZenML Helm deployment using the following command:
+## Upgrade with configuration changes
+
+If you need to modify your ZenML server configuration during the upgrade, follow these steps instead:
+
+* Extract your current configuration values to a file:
 
   ```bash
   helm -n <namespace> get values zenml-server > custom-values.yaml
   ```
-* Upgrade the release using your modified values file. Make sure you are in the directory that hosts the helm chart:
+
+* Make the necessary changes to your `custom-values.yaml` file (make sure they are compatible with the new version)
+
+* Upgrade the release using your modified values file:
 
   ```bash
-  helm -n <namespace> upgrade zenml-server . -f custom-values.yaml
+  helm -n <namespace> upgrade zenml-server oci://public.ecr.aws/zenml/zenml --version <VERSION> -f custom-values.yaml
   ```
 
 {% hint style="info" %}