Added support for Helm and Kustomize

Dockerfile

@@ -11,8 +11,20 @@ RUN curl -LO "https://github.com/instrumenta/kubeval/releases/latest/download/ku
     rm kubeval-linux-amd64.tar.gz && \
     mv kubeval /usr/local/bin/
 
+RUN apk add --no-cache ca-certificates
+
+RUN curl -LO "https://get.helm.sh/helm-v3.7.0-linux-amd64.tar.gz" && \
+    tar xf helm-v3.7.0-linux-amd64.tar.gz && \
+    rm helm-v3.7.0-linux-amd64.tar.gz && \
+    mv linux-amd64/helm /usr/local/bin/
+
+RUN apk add --no-cache git
+
+RUN curl -LO "https://github.com/kubernetes-sigs/kustomize/releases/latest/download/kustomize_linux_amd64" && \
+    chmod +x kustomize_linux_amd64 && \
+    mv kustomize_linux_amd64 /usr/local/bin/kustomize
+
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 
-ENTRYPOINT ["/entrypoint.sh"]
-
+ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -7,3 +7,9 @@ directory=$INPUT_DIRECTORY
 
 # Validate Kubernetes manifest files
 kubeval --strict $directory/*.yaml
+
+# Validate Helm charts
+helm lint $directory/charts
+
+# Validate Kustomize overlays
+kustomize build $directory/kustomize