Fix arch

Author: devopsmariocom

Dockerfile

@@ -2,8 +2,9 @@ FROM alpine:3.12.0 as fetcher
 
 ARG KUSTOMIZE_VERSION=v3.8.1
 
-ADD https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/${KUSTOMIZE_VERSION}/kustomize_${KUSTOMIZE_VERSION}_darwin_amd64.tar.gz /usr/local/bin/kustomize
+RUN wget -O- https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/${KUSTOMIZE_VERSION}/kustomize_${KUSTOMIZE_VERSION}_linux_amd64.tar.gz | tar xvz -C /usr/local/bin/
 
+# RUN mv kustomize /usr/local/bin/kustomize
 RUN chmod +x /usr/local/bin/kustomize
 
 FROM alpine:3.12.0