add git to the image for dependencies

Author: leventogut

Dockerfile

@@ -2,7 +2,7 @@ FROM alpine:3 as alpine
 
 ARG RELEASE_VERSION=latest
 
-RUN apk add --update-cache curl tar docker
+RUN apk add --update-cache curl tar docker git
 
 RUN curl -L -o /bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v1.17.3/bin/linux/amd64/kubectl \
  && chmod +x /bin/kubectl