Adjust dockerfile

.dockerignore

@@ -0,0 +1,26 @@
+.env
+map-dots
+*.png
+Dockerfile
+
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work

Dockerfile

@@ -0,0 +1,8 @@
+FROM golang:alpine as builder
+WORKDIR /build
+COPY . .
+RUN go build
+
+FROM scratch
+COPY --from=builder /build/map-dots /bin/map-dots
+CMD [ "/bin/map-dots", "--server" ]