docker: fix when building image from openair-epc-fed repository

Signed-off-by: Raphael Defosseux <raphael.defosseux@openairinterface.org>

build/scripts/build_spgwu

@@ -170,6 +170,19 @@ function main()
     fi
   fi
 
+  # Taking care of the case we build from dockerfile within openair-epc-fed repository
+  if [ -f $OPENAIRCN_DIR/.git ] && [ $IS_CONTAINER -ne 0 ]; then
+    pushd $OPENAIRCN_DIR > /dev/null
+    rm -f .git
+    git init
+    git config --global user.email "dummy@dummy.org"
+    git config --global user.name "dummy"
+    echo "dummy" > dummy.txt
+    git add dummy.txt
+    git commit -m "dummy"
+    popd > /dev/null
+  fi
+
   cmake_args="$cmake_args  -DBUILD_SHARED_LIBS=OFF"
   ##############################################################################
   # Clean

docker/Dockerfile.ubuntu18.04

@@ -53,10 +53,6 @@ WORKDIR /openair-spgwu-tiny/build/scripts
 RUN ./build_spgwu --install-deps --force
 RUN ./build_spgwu --clean --build-type Release --jobs --Verbose
 
-# Getting SHA-ONE for support
-WORKDIR /openair-spgwu-tiny
-RUN git log -n1 > version.txt
-
 #---------------------------------------------------------------------
 # TARGET IMAGE
 #---------------------------------------------------------------------
@@ -89,7 +85,6 @@ WORKDIR /openair-spgwu-tiny/etc
 COPY --from=oai-spgwu-tiny-builder /openair-spgwu-tiny/etc/spgw_u.conf .
 
 WORKDIR /openair-spgwu-tiny
-COPY --from=oai-spgwu-tiny-builder /openair-spgwu-tiny/version.txt .
 
 # expose ports
 EXPOSE 2152/udp 8805/udp