Update al2 dockerfile for knn build

Signed-off-by: Junqiu Lei <junqiu@amazon.com>

docker/ci/dockerfiles/current/build.al2.opensearch.x64.arm64.dockerfile

@@ -90,12 +90,21 @@ RUN ln -sfn /usr/local/bin/python3.9 /usr/bin/python3 && \
     pip3 install pip==23.1.2 && pip3 install pipenv==2023.6.12 awscli==1.32.17
 
 # Add k-NN Library dependencies
-RUN yum repolist && yum install openblas-static lapack gcc-gfortran -y
+RUN yum repolist && yum install lapack gcc-gfortran -y && \
+        git clone -b v0.3.3 --single-branch https://github.com/xianyi/OpenBLAS.git && \
+        cd OpenBLAS && \
+        make USE_OPENMP=1 FC=gfortran && \
+        make PREFIX=/usr/local install
+ENV LD_LIBRARY_PATH="/usr/local/lib:$LD_LIBRARY_PATH"
+
 RUN pip3 install cmake==3.23.3
 # Upgrade gcc
 RUN yum install -y gcc10* && \
-    ln -s `which gcc10-gcc` /usr/local/bin/gcc && \
-    ln -s `which gcc10-g++` /usr/local/bin/g++
+    mv -v /usr/bin/gcc /usr/bin/gcc7-gcc && \
+    mv -v /usr/bin/g++ /usr/bin/gcc7-g++ && \
+    update-alternatives --install /usr/bin/gcc gcc $(which gcc10-gcc) 1 && \
+    update-alternatives --install /usr/bin/g++ g++ $(which gcc10-g++) 1
+ENV FC=gcc10-gfortran
 
 # Change User
 USER $CONTAINER_USER