fix(Dockerfile): update shell script to v4

The pre-installed plugins must be installed individually. Otherwise runs this
project into the problem, that we need to trigger a new release of the container
image only to update the plugin in case of an issue.

.gitea/workflows/auto-release.yaml

@@ -53,6 +53,7 @@ jobs:
           git push origin "${defined_tag}"
 
       - name: Trigger "Push tagged images" workflow
+        if: steps.check_change.outputs.changed == 'true'
         uses: actions/github-script@v8.0.0
         with:
           script: |

.gitea/workflows/release.yaml

@@ -44,7 +44,7 @@ jobs:
       - name: Build and push image
         run: |
           docker buildx build \
-            --build-arg HELM_VERSION=${{ github.ref_name }} \
+            --build-arg HELM_VERSION=${{ steps.version_extraction.outputs.version_raw }} \
             --file Dockerfile \
             --platform linux/arm64 \
             --provenance false \
@@ -84,7 +84,7 @@ jobs:
       - name: Build and push image
         run: |
           docker buildx build \
-            --build-arg HELM_VERSION=${{ github.ref_name }} \
+            --build-arg HELM_VERSION=${{ steps.version_extraction.outputs.version_raw }} \
             --file Dockerfile \
             --platform linux/amd64 \
             --provenance false \

Dockerfile

@@ -3,16 +3,11 @@ FROM docker.io/library/alpine:3.22.2
 ARG HELM_VERSION
 
 RUN apk add bash curl git openssl && \
-    curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 --output /tmp/install.sh
+    curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-4 --output /tmp/install.sh
 
 RUN if [[ -z "${HELM_VERSION+x}" ]]; then bash /tmp/install.sh; fi
 RUN if [[ -n "${HELM_VERSION+x}" ]]; then bash /tmp/install.sh --version "${HELM_VERSION}"; fi
 
 RUN rm /tmp/install.sh
 
-# Install additionally helm plugins
-RUN helm plugin install https://github.com/chartmuseum/helm-push.git && \
-    helm plugin install https://github.com/helm-unittest/helm-unittest.git && \
-    helm plugin install https://github.com/losisin/helm-values-schema-json.git
-
 ENTRYPOINT [ "/usr/local/bin/helm" ]

renovate.json

@@ -31,6 +31,10 @@
       ],
       "matchManagers": [
         "regex"
+      ],
+      "matchUpdateTypes": [
+        "minor",
+        "patch"
       ]
     }
   ]