Remove ROOT_CAUSE_ANALYSIS.md and outdated server logs

crates/embeddings-engine/Dockerfile

@@ -0,0 +1,42 @@
+# ---- Build stage ----
+FROM rust:1-slim-bullseye AS builder
+
+WORKDIR /usr/src/app
+
+# Install build dependencies
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        pkg-config \
+        libssl-dev \
+        build-essential \
+        && rm -rf /var/lib/apt/lists/*
+
+# Cache deps first
+COPY . ./
+RUN rm -rf src
+RUN mkdir src && echo "fn main() {}" > src/main.rs && echo "// lib" > src/lib.rs && cargo build --release
+RUN rm -rf src
+
+# Copy real sources and build
+COPY . .
+RUN cargo build --release
+
+# ---- Runtime stage ----
+FROM debian:bullseye-slim
+
+# Install only what the compiled binary needs
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        libssl1.1 \
+        ca-certificates \
+        && rm -rf /var/lib/apt/lists/*
+
+# Copy binary from builder
+COPY --from=builder /usr/src/app/target/release/embeddings-engine /usr/local/bin/
+
+# Run as non-root user for safety
+RUN useradd -m appuser
+USER appuser
+
+EXPOSE 8080
+CMD ["embeddings-engine"]

crates/embeddings-engine/src/lib.rs

@@ -25,10 +25,6 @@ static EMBEDDING_MODEL: Lazy<TextEmbedding> = Lazy::new(|| {
     model
 });
 
-pub async fn root() -> &'static str {
-    "Hello, World!"
-}
-
 pub async fn embeddings_create(
     Json(payload): Json<CreateEmbeddingRequest>,
 ) -> ResponseJson<serde_json::Value> {

crates/embeddings-engine/src/main.rs

@@ -13,9 +13,6 @@ use tracing;
 const DEFAULT_SERVER_HOST: &str = "127.0.0.1";
 const DEFAULT_SERVER_PORT: &str = "8080";
 
-async fn root() -> &'static str {
-    "Hello, World!"
-}
 
 async fn embeddings_create(
     Json(payload): Json<CreateEmbeddingRequest>,
@@ -162,24 +159,6 @@ mod tests {
 	use axum::http::StatusCode;
 	use tower::ServiceExt;
 
-	#[tokio::test]
-    async fn test_root() {
-        let app = create_app();
-        let response = app
-            .oneshot(
-                axum::http::Request::builder()
-                    .uri("/")
-                    .body(Body::empty())
-                    .unwrap(),
-            )
-            .await
-            .unwrap();
-
-        assert_eq!(response.status(), StatusCode::OK);
-        let body = to_bytes(response.into_body(), usize::MAX).await.unwrap();
-        assert_eq!(&body[..], b"Hello, World!");
-    }
-
     #[tokio::test]
     async fn test_embeddings_create() {
         // Start a test server