should work now

Dockerfile

@@ -1,13 +1,24 @@
-FROM alpine:3.19
+FROM alpine
 
-RUN apk add --no-cache curl bash ca-certificates
+ARG HELM_VERSION=3.2.1
+ARG KUBECTL_VERSION=1.17.5
 
-# Install kubectl
-RUN sh -c 'curl -LO "https://dl.k8s.io/release/$(curl -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" && \
-    install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl && rm kubectl'
+# Determine architecture
+RUN case `uname -m` in \
+    x86_64) ARCH=amd64 ;; \
+    armv7l) ARCH=arm ;; \
+    aarch64) ARCH=arm64 ;; \
+    ppc64le) ARCH=ppc64le ;; \
+    s390x) ARCH=s390x ;; \
+    *) echo "Unsupported arch" && exit 1 ;; \
+    esac && echo "ARCH=$ARCH" > /envfile
 
+# Install Helm and kubectl
+RUN . /envfile && \
+    apk add --no-cache curl ca-certificates bash && \
+    curl -sL https://get.helm.sh/helm-v${HELM_VERSION}-linux-${ARCH}.tar.gz | tar -xz && \
+    mv linux-${ARCH}/helm /usr/bin/helm && chmod +x /usr/bin/helm && rm -rf linux-${ARCH} && \
+    curl -sLO https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${ARCH}/kubectl && \
+    mv kubectl /usr/bin/kubectl && chmod +x /usr/bin/kubectl
 
-# Install Helm
-RUN curl -fsSL https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash
-
-ENTRYPOINT ["/bin/sh"]
+WORKDIR /apps