metrics: Add C-Ray Dockerfile

This PR adds the C-Ray Dockerfile for kata metrics.

Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

tests/metrics/disk/c-ray/Dockerfile

@@ -0,0 +1,26 @@
+# Copyright (c) 2023 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# Usage: FROM [image name]
+FROM ubuntu:20.04
+
+# Version of the Dockerfile
+LABEL DOCKERFILE_VERSION="1.0"
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# URL for c-ray benchmark
+ENV CRAY_URL "http://www.phoronix-test-suite.com/benchmark-files/c-ray-1.1.tar.gz"
+
+RUN apt-get update && \
+	apt-get install -y --no-install-recommends build-essential gcc curl && \
+	apt-get remove -y unattended-upgrades && \
+	curl -OkL "${CRAY_URL}" && \
+	tar -zxvf c-ray-1.1.tar.gz && \
+	cd c-ray-1.1 && \
+	cc -o c-ray-mt c-ray-mt.c -lm -lpthread && \
+	make && \
+	make install
+
+CMD ["/bin/bash"]