Fix Docker build issue in MTL Manager (#927)

Addresses the build failure in the MTL Manager
Docker configuration due to a missing VERSION file.
Ensures the VERSION file is properly included.

Co-developed-by: Aleksandr Ivanov <aleksandr.ivanov@intel.com>

Fixes:
56f207d

manager/Dockerfile

@@ -6,12 +6,14 @@
 # Please review and modify as necessary before using in a production environment.
 
 # Build stage, ubuntu 22.04
-FROM ubuntu@sha256:149d67e29f765f4db62aa52161009e99e389544e25a8f43c8c89d4a445a7ca37 as builder
+FROM ubuntu@sha256:149d67e29f765f4db62aa52161009e99e389544e25a8f43c8c89d4a445a7ca37 AS builder
 
 LABEL maintainer="ming3.li@intel.com"
 
 ENV PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib64/pkgconfig
 
+ARG VERSION
+
 # Install build dependencies
 RUN apt-get update -y && \
     apt-get install -y --no-install-recommends git build-essential pkg-config m4 clang llvm zlib1g-dev libelf-dev libpcap-dev libcap-ng-dev meson gcc-multilib ca-certificates
@@ -27,6 +29,11 @@ RUN make install && \
     DESTDIR=/install make install
 
 COPY . /manager
+RUN \
+    if [ -z "${VERSION}" ]; then \
+        VERSION="0.0.1.DOCKER"; \
+    fi; \
+    echo "$VERSION" > /VERSION
 
 # Build the MTL Manager
 WORKDIR /manager

manager/README.md

@@ -66,8 +66,8 @@ Please note that the Dockerfile provided is intended for development use only. I
 Build the Docker image:
 
 ```bash
-docker build -t mtl-manager:latest .
-# docker build -t mtl-manager:latest --build-arg HTTP_PROXY=$http_proxy --build-arg HTTPS_PROXY=$https_proxy .
+docker build --build-arg VERSION=$(cat ../VERSION) -t mtl-manager:latest .
+# docker build --build-arg VERSION=$(cat ../VERSION) -t mtl-manager:latest --build-arg HTTP_PROXY=$http_proxy --build-arg HTTPS_PROXY=$https_proxy .
 ```
 
 Run the Docker container as a daemon: