Adiciona logs a gunicorn (#1526)

Dockerfile

@@ -12,6 +12,7 @@ RUN apk add --no-cache python3 nginx tzdata && \
     rm -f /etc/nginx/conf.d/*
 
 RUN mkdir -p /var/interlegis/sapl && \
+    mkdir /var/log/gunicorn \
     apk add --update --no-cache $BUILD_PACKAGES && \
     npm install -g bower && \
     npm cache clean

gunicorn_start.sh

@@ -42,4 +42,6 @@ exec gunicorn ${DJANGO_WSGI_MODULE}:application \
   --name $NAME \
   --workers $NUM_WORKERS \
   --user $USER \
+  --access-logfile /var/log/gunicorn/gunicorn-access.log \
+  --error-logfile /var/log/gunicorn/gunicorn-error.log \
   --bind=unix:$SOCKFILE