fix(Containerfile): best practices, optimize (#3)

Containerfile

@@ -4,22 +4,21 @@ ENV CGO_ENABLED=0
 ENV GOOS=linux
 ENV GOARCH=amd64
 
-ARG JQ_VERSION=1.7
-
 # hadolint ignore=DL3018
-RUN apk update && apk add --no-cache bash git make binutils wget \
-	&& wget --progress=dot:giga "https://github.com/jqlang/jq/releases/download/jq-${JQ_VERSION}/jq-${GOOS}-${GOARCH}" -O /usr/bin/jq \
-	&& chmod +x /usr/bin/jq
+RUN apk update \
+	&& apk add --no-cache \
+	make binutils
 
 WORKDIR $GOPATH/src/github.com/wiremind/ovh-exporter
 
 COPY . .
 
 RUN make ovh-exporter && mv ovh-exporter /usr/bin/
 
-
 FROM busybox:stable AS runtime
 
 COPY --from=build /usr/bin/ovh-exporter /usr/bin/ovh-exporter
 
 ENTRYPOINT ["/usr/bin/ovh-exporter"]
+
+CMD ["serve"]