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server/app.py

@@ -81,4 +81,7 @@ if __name__ == "__main__":
     parser = argparse.ArgumentParser()
     parser.add_argument("--port", type=int, default=8000)
     args = parser.parse_args()
-    main(port=args.port)
+    if args.port == 8000:
+        main()
+    else:
+        main(port=args.port)

validate_submission.sh

@@ -38,23 +38,35 @@ else
   RED='' GREEN='' YELLOW='' BOLD='' NC=''
 fi
 
+# Run "$@" with a wall-clock limit. Prefer GNU timeout / gtimeout; otherwise poll so we
+# never wait on a background `sleep` after the command exits (macOS fallback used to hang
+# until the full sleep finished if the watcher subshell left sleep orphaned).
 run_with_timeout() {
-  local secs="$1"; shift
+  local secs="$1"
+  shift
   if command -v timeout &>/dev/null; then
     timeout "$secs" "$@"
+    return $?
   elif command -v gtimeout &>/dev/null; then
     gtimeout "$secs" "$@"
-  else
-    "$@" &
-    local pid=$!
-    ( sleep "$secs" && kill "$pid" 2>/dev/null ) &
-    local watcher=$!
-    wait "$pid" 2>/dev/null
-    local rc=$?
-    kill "$watcher" 2>/dev/null
-    wait "$watcher" 2>/dev/null
-    return $rc
+    return $?
   fi
+  "$@" &
+  local cmd_pid=$!
+  local elapsed=0
+  while kill -0 "$cmd_pid" 2>/dev/null; do
+    if [ "$elapsed" -ge "$secs" ]; then
+      kill -TERM "$cmd_pid" 2>/dev/null
+      sleep 1
+      kill -KILL "$cmd_pid" 2>/dev/null
+      wait "$cmd_pid" 2>/dev/null || true
+      return 124
+    fi
+    sleep 1
+    elapsed=$((elapsed + 1))
+  done
+  wait "$cmd_pid"
+  return $?
 }
 
 portable_mktemp() {
@@ -133,19 +145,25 @@ if ! command -v docker &>/dev/null; then
   stop_at "Step 2"
 fi
 
+# OpenEnv templates often keep the Dockerfile under server/ but COPY expects the
+# environment root (pyproject.toml, uv.lock, models.py). Context must be REPO_DIR.
 if [ -f "$REPO_DIR/Dockerfile" ]; then
-  DOCKER_CONTEXT="$REPO_DIR"
+  DOCKER_FILE="$REPO_DIR/Dockerfile"
 elif [ -f "$REPO_DIR/server/Dockerfile" ]; then
-  DOCKER_CONTEXT="$REPO_DIR/server"
+  DOCKER_FILE="$REPO_DIR/server/Dockerfile"
 else
   fail "No Dockerfile found in repo root or server/ directory"
   stop_at "Step 2"
 fi
+DOCKER_CONTEXT="$REPO_DIR"
 
-log "  Found Dockerfile in $DOCKER_CONTEXT"
+log "  Dockerfile: $DOCKER_FILE"
+log "  Build context: $DOCKER_CONTEXT"
 
 BUILD_OK=false
-BUILD_OUTPUT=$(run_with_timeout "$DOCKER_BUILD_TIMEOUT" docker build "$DOCKER_CONTEXT" 2>&1) && BUILD_OK=true
+BUILD_OUTPUT=$(
+  run_with_timeout "$DOCKER_BUILD_TIMEOUT" docker build -f "$DOCKER_FILE" "$DOCKER_CONTEXT" 2>&1
+) && BUILD_OK=true
 
 if [ "$BUILD_OK" = true ]; then
   pass "Docker build succeeded"