Remove unnecessary pkg installation, add static

- Remove curl installation
 - Change dep installation from 'curl' to 'go get'
 - Copy static content to asset container

Signed-off-by: Michiel Kalkman <michiel@nosuchtype.com>

Dockerfile

@@ -2,8 +2,8 @@ FROM golang:1.11-alpine as builder
 
 # Install our build tools
 
-RUN apk add --update git make curl bash
-RUN curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+RUN apk add --update git make
+RUN go get -u github.com/golang/dep/cmd/dep
 
 # Get sources
 
@@ -16,11 +16,13 @@ RUN make vendor
 
 # Build goldpinger
 
+RUN apk add bash
 RUN make bin/goldpinger
 
 # Build the asset container, copy over goldpinger
 
 FROM scratch
 COPY --from=builder /go/src/github.com/bloomberg/goldpinger/bin/goldpinger /goldpinger
+COPY ./static /static
 ENTRYPOINT ["/goldpinger", "--static-file-path", "/static"]