Add build scripts and dockerfile

Dockerfile

@@ -0,0 +1,22 @@
+# ---- Base ----
+FROM alpine:3 AS base
+WORKDIR /app
+
+
+# ---- Build ----
+FROM golang:1.19-alpine AS build
+WORKDIR /build
+# Copy sources
+ADD . .
+# Get dependencies
+RUN go get ./cmd/app
+# Compile
+RUN CGO_ENABLED=0 go build -a -o app ./cmd/app
+
+
+# ---- Release ----
+FROM base AS release
+# Copy build-target
+COPY --from=build /build/app .
+
+CMD ["./app"]