Use better dockerfile

.dockerignore

@@ -0,0 +1 @@
+README.md

Dockerfile

@@ -1,8 +1,20 @@
-FROM golang:alpine
-RUN apk add git
+FROM golang:alpine AS builder
 
 ENV GOPROXY https://modules.fromouter.space
-RUN go get git.fromouter.space/mcg/mlpdraftbot
+ENV GO111MODULE=on
 
-ENTRYPOINT [ "mlpdraftbot" ]
-EXPOSE 5749
+WORKDIR /app
+
+# Get updated modules
+COPY ./ ./
+RUN go mod download
+
+# Compile code
+RUN CGO_ENABLED=0 go build -o /svc .
+
+FROM scratch AS final
+
+# Import the compiled executable from the first stage.
+COPY --from=builder /svc /svc
+
+CMD [ "/svc" ]