Added production parameter recognition feature (#468)

Dockerfile

@@ -80,4 +80,8 @@ RUN chmod 700 /usr/sbin/start_admin_session
 ENV PYTHONPATH="${PYTHON_DEPENDENCIES_DIR}:${PYTHONPATH}"
 ENV PATH="${PYTHON_DEPENDENCIES_DIR}/bin:${PATH}"
 
+# Copy environment variables startup script
+COPY setenv.sh /var/nebra
+RUN . /var/nebra/setenv.sh
+
 ENTRYPOINT ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "300", "hw_diag.wsgi:wsgi_app"]

setenv.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+freq_file_name="./envvars/FREQ"
+variant_file_name="./envvars/VARIANT"
+
+#FREQ
+if [ -z ${FREQ+x} ]; then
+    if [ -f ${freq_file_name} ]; then
+        FREQ=$(<${freq_file_name});
+        export FREQ=${FREQ}
+        echo "FREQ is set as ${FREQ}";
+    else
+        echo "Error: Cannot set FREQ variable.";
+    fi
+else
+    echo "FREQ variable is already set as ${FREQ}.";
+    if [ ! -f ${freq_file_name} ]; then
+        echo "FREQ parameter file doesn't exist. Setting it as ${FREQ} now.";
+        echo "${FREQ}" > ${freq_file_name}
+    fi
+fi
+
+#VARIANT
+if [ -z ${VARIANT+x} ]; then
+    if [ -f ${variant_file_name} ]; then
+        VARIANT=$(<${variant_file_name});
+        export VARIANT=${VARIANT}
+        echo "VARIANT is set as ${VARIANT}";
+    else
+        echo "Error: Cannot set VARIANT variable.";
+    fi
+else
+    echo "VARIANT variable is already set as ${VARIANT}.";
+    if [ ! -f ${variant_file_name} ]; then
+        echo "VARIANT parameter file doesn't exist. Setting it as ${VARIANT} now.";
+        echo "${VARIANT}" > ${variant_file_name}
+    fi
+fi