Added production parameter recognition feature (#468)

.hadolint.yaml

@@ -0,0 +1,2 @@
+ignored:
+    - SC1091

Dockerfile

@@ -14,9 +14,8 @@ WORKDIR /tmp/build
 RUN \
     install_packages \
             build-essential \
-            libdbus-glib-1-dev
-
-RUN pip3 install --no-cache-dir --target="$PYTHON_DEPENDENCIES_DIR" .
+            libdbus-glib-1-dev && \
+    pip3 install --no-cache-dir --target="$PYTHON_DEPENDENCIES_DIR" .
 
 # firehose build, the tar is obtained from  quectel.
 # there is no install target in Makefile, doing manual copy
@@ -48,8 +47,6 @@ WORKDIR /opt/
 
 # Import gpg key
 COPY keys/manufacturing-key.gpg ./
-RUN gpg --import manufacturing-key.gpg
-RUN rm manufacturing-key.gpg
 
 # @TODO: Re-enable health-check once Balena supports it fully.
 # HEALTHCHECK \
@@ -74,10 +71,21 @@ COPY --from=builder /tmp/build/alembic.ini /opt/migrations/alembic.ini
 
 # copy start admin session script
 COPY --from=builder /tmp/build/start_admin_session /usr/sbin/start_admin_session
-RUN chmod 700 /usr/sbin/start_admin_session
+
+# Getting RUN layers together
+RUN gpg --import manufacturing-key.gpg && \
+    rm manufacturing-key.gpg && \
+    chmod 700 /usr/sbin/start_admin_session && \
+    mkdir -p /opt/nebra
 
 # Add python dependencies to PYTHONPATH
 ENV PYTHONPATH="${PYTHON_DEPENDENCIES_DIR}:${PYTHONPATH}"
 ENV PATH="${PYTHON_DEPENDENCIES_DIR}/bin:${PATH}"
 
-ENTRYPOINT ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "300", "hw_diag.wsgi:wsgi_app"]
+# Copy environment variables startup script
+COPY setenv.sh /opt/nebra/setenv.sh
+
+# Copy container startup script
+COPY start.sh /opt/nebra/start.sh
+
+ENTRYPOINT ["/opt/start.sh"]

setenv.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+freq_file_name="/var/nebra/envvars/FREQ"
+variant_file_name="/var/nebra/envvars/VARIANT"
+
+# Create necessary folder if it doesn't exist
+if [ ! -d "/var/nebra/envvars" ]; then
+    mkdir "/var/nebra/envvars"
+fi
+
+#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

start.sh

@@ -0,0 +1,6 @@
+#! /bin/sh
+
+# shellcheck source=/dev/null
+. /opt/nebra/setenv.sh
+
+gunicorn --bind 0.0.0.0:5000 --timeout 300 hw_diag.wsgi:wsgi_app