feat: improve binary size with build tags (#976)

Dockerfile.distroless

@@ -28,6 +28,7 @@ ARG VERSION
 ARG COMMIT_HASH
 ARG BUILD_TIMESTAMP
 ARG LDFLAGS
+ARG BUILD_TAGS
 
 WORKDIR /tinyauth
 
@@ -36,14 +37,15 @@ COPY go.sum ./
 
 RUN go mod download
 
-COPY ./cmd ./cmd
+COPY ./cmd ./cmd/
 COPY ./internal ./internal
 COPY --from=frontend-builder /frontend/dist ./internal/assets/dist
 
-RUN CGO_ENABLED=0 go build -ldflags "${LDFLAGS} \
+RUN CGO_ENABLED=0 go build -tags "${BUILD_TAGS}" -ldflags "${LDFLAGS} \
     -X github.com/tinyauthapp/tinyauth/internal/model.Version=${VERSION} \
     -X github.com/tinyauthapp/tinyauth/internal/model.CommitHash=${COMMIT_HASH} \
-    -X github.com/tinyauthapp/tinyauth/internal/model.BuildTimestamp=${BUILD_TIMESTAMP}" ./cmd/tinyauth
+    -X github.com/tinyauthapp/tinyauth/internal/model.BuildTimestamp=${BUILD_TIMESTAMP}" \
+    -o tinyauth ./cmd/tinyauth
 
 # Make the data directory with a non-root user
 RUN addgroup tinyauth && adduser -DH tinyauth -G tinyauth