Initial public release of birdwatch-relay

Dockerfile

@@ -0,0 +1,19 @@
+# syntax=docker/dockerfile:1
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+FROM golang:1.22-alpine AS build
+WORKDIR /src
+COPY . .
+# go mod tidy resolves dependencies from source imports — no go.sum needed at
+# repo root for first-time users running `docker compose build`.
+RUN go mod tidy && \
+    CGO_ENABLED=0 GOOS=linux go build \
+        -ldflags="-s -w" \
+        -o /out/birdwatch-relay \
+        .
+
+FROM gcr.io/distroless/static-debian12:nonroot
+COPY --from=build /out/birdwatch-relay /birdwatch-relay
+USER nonroot:nonroot
+EXPOSE 8080
+ENTRYPOINT ["/birdwatch-relay"]