O-RU: Add Dockerfile and image build step

docker/scripts/nr_oru_entrypoint.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+set -uo pipefail
+
+PREFIX=/opt/nr-oru
+CONFIGFILE=$PREFIX/etc/nr-oru.conf
+
+echo "=================================="
+echo "/proc/sys/kernel/core_pattern=$(cat /proc/sys/kernel/core_pattern)"
+
+if [ ! -f $CONFIGFILE ]; then
+  echo "No configuration file $CONFIGFILE found: attempting to find YAML config"
+  YAML_CONFIGFILE=$PREFIX/etc/nr-oru.yaml
+  if [ ! -f $YAML_CONFIGFILE ]; then
+    echo "No configuration file $YAML_CONFIGFILE found. Please mount either at $CONFIGFILE or $YAML_CONFIGFILE"
+    exit 255
+  fi
+  CONFIGFILE=$YAML_CONFIGFILE
+fi
+
+echo "=================================="
+echo "== Configuration file:"
+cat $CONFIGFILE
+
+new_args=()
+
+while [[ $# -gt 0 ]]; do
+  new_args+=("$1")
+  shift
+done
+
+new_args+=("-O")
+new_args+=("$CONFIGFILE")
+
+# Load the USRP binaries
+echo "=================================="
+echo "== Load USRP binaries"
+if [[ -v USE_B2XX ]]; then
+    $PREFIX/bin/uhd_images_downloader.py -t b2xx
+elif [[ -v USE_X3XX ]]; then
+    $PREFIX/bin/uhd_images_downloader.py -t x3xx
+elif [[ -v USE_N3XX ]]; then
+    $PREFIX/bin/uhd_images_downloader.py -t n3xx
+fi
+
+# enable printing of stack traces on assert
+export OAI_GDBSTACKS=1
+
+echo "=================================="
+echo "== Starting O-RU "
+if [[ -v USE_ADDITIONAL_OPTIONS ]]; then
+    echo "Additional option(s): ${USE_ADDITIONAL_OPTIONS}"
+    while [[ $# -gt 0 ]]; do
+        new_args+=("$1")
+        shift
+    done
+    for word in ${USE_ADDITIONAL_OPTIONS}; do
+        new_args+=("$word")
+    done
+    echo "${new_args[@]}"
+    exec "${new_args[@]}"
+else
+    echo "${new_args[@]}"
+    exec "${new_args[@]}"
+fi