Added production parameter recognition feature (#468)

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
@@ -48,16 +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 \
-#    --interval=120s \
-#    --timeout=5s \
-#    --start-period=15s \
-#    --retries=10 \
-#  CMD wget -q -O - http://0.0.0.0:5000/initFile.txt || exit 1
 
 # Copy packages from builder
 COPY --from=builder "$PYTHON_DEPENDENCIES_DIR" "$PYTHON_DEPENDENCIES_DIR"
@@ -74,10 +63,21 @@ 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/nebra/start.sh"]

setenv.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+base_path="/var/nebra/envvars"
+
+# Create necessary folder if it doesn't exist
+if [ ! -d $base_path ]; then
+    mkdir -p $base_path
+fi
+
+create_file_if_not_exists() {
+    local name="$1"
+    local contents="$2"
+    local fullpath="${base_path}/${name}"
+
+    if [ ! -f "${fullpath}" ]; then
+        echo "${name} parameter file doesn't exist. Setting it as ${contents} now.";
+        echo "${contents}" > "${fullpath}"
+    fi
+}
+
+export_param_if_not_exists() {
+    local name="$1"
+    local fullpath="${base_path}/${name}"
+
+    if [ -f "${fullpath}" ]; then
+        contents=$(<"${fullpath}");
+        export "${name}"="${contents}"
+        echo "${name} is set as ${contents}";
+    else
+        echo "Error: Cannot set ${name} variable.";
+    fi
+}
+
+#FREQ
+if [ -z ${FREQ+x} ]; then
+    export_param_if_not_exists FREQ
+else
+    echo "FREQ variable is already set as ${FREQ}.";
+    create_file_if_not_exists FREQ "${FREQ}"
+fi
+
+#VARIANT
+if [ -z ${VARIANT+x} ]; then
+    export_param_if_not_exists VARIANT
+else
+    echo "VARIANT variable is already set as ${VARIANT}.";
+    create_file_if_not_exists VARIANT "${VARIANT}"
+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