I am batman

services/auth-service/Dockerfile

@@ -0,0 +1,33 @@
+FROM golang:1.24-alpine AS build
+RUN apk add --no-cache git ca-certificates protobuf-dev
+WORKDIR /app
+
+# use repo-level go.mod so modules are resolvable (build.context must be repo root)
+COPY go.mod go.sum ./
+RUN go mod download
+
+# install Go protoc plugins
+RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest && \
+    go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+
+# copy service sources and proto files into the image
+COPY services/auth-service ./services/auth-service
+COPY proto ./proto
+
+# generate proto files
+RUN mkdir -p proto/auth proto/user proto/post && \
+    export PATH=/go/bin:$PATH && \
+    protoc --go_out=proto --go_opt=paths=source_relative \
+           --go-grpc_out=proto --go-grpc_opt=paths=source_relative \
+           --proto_path=proto \
+           proto/auth.proto proto/user.proto proto/post.proto && \
+    ls -la proto/auth/ proto/user/ proto/post/
+
+# build a static binary for the auth service
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /usr/local/bin/auth-service ./services/auth-service/cmd
+
+FROM alpine:3.20
+RUN apk add --no-cache ca-certificates
+COPY --from=build /usr/local/bin/auth-service /usr/local/bin/auth-service
+EXPOSE 50051
+ENTRYPOINT ["/usr/local/bin/auth-service"]