#!/bin/bash

UWSGI_UID='uwsgi'
UWSGI_GID='uwsgi'

UWSGI_BUFFER_SIZE='12288'
UWSGI_TIMEOUT='90'
UWSGI_HEADERS='Connection:Keep-Alive'

UWSGI_WORKERS="${UWSGI_WORKERS:-250}"
UWSGI_CHEAPER="${UWSGI_CHEAPER:-15}"
UWSGI_CHEAPER_ALGO="${UWSGI_CHEAPER_ALGO:-spare}"
UWSGI_CHEAPER_OVERLOAD="${UWSGI_CHEAPER_OVERLOAD:-5}"
UWSGI_CHEAPER_STEP="${UWSGI_CHEAPER_STEP:-5}"
UWSGI_CHEAPER_INITIAL="${UWSGI_CHEAPER_INITIAL:-15}"

cd /var/app/env

. bin/activate

cd /var/app

# Flask support
if cat requirements.txt | grep -q -i Flask && [ -z "${WSGI_MODULE}" ]; then
  UWSGI_MODULE='--module application:app'
fi

# defaulting to application.py if not explicitly set
[ -z "${WSGI_PATH}" ] && WSGI_PATH=application.py

DDTRACE_BINARY=$(whereis ddtrace-run | cut -d ' ' -f 2)
echo "DD trace= ${DDTRACE_BINARY}"

if [ -x ${DDTRACE_BINARY} ]; then
 ${DDTRACE_BINARY} uwsgi --cache2 name=uwsgi_cache,items=10 --http :8080 --chdir /var/app --wsgi-file ${WSGI_PATH} --module application:app --master --uid ${UWSGI_UID} --gid ${UWSGI_GID} -t ${UWSGI_TIMEOUT} --http-keepalive --add-header ${UWSGI_HEADERS} --buffer-size ${UWSGI_BUFFER_SIZE} --enable-threads --workers ${UWSGI_WORKERS} --cheaper ${UWSGI_CHEAPER} --cheaper-algo ${UWSGI_CHEAPER_ALGO} --cheaper-initial ${UWSGI_CHEAPER_INITIAL} --cheaper-step ${UWSGI_CHEAPER_STEP} --harakiri-verbose --lazy-apps --import=ddtrace.bootstrap.sitecustomize
else
 uwsgi --cache2 name=uwsgi_cache,items=10 --http :8080 --chdir /var/app --wsgi-file ${WSGI_PATH} --module application:app --master --uid ${UWSGI_UID} --gid ${UWSGI_GID} -t ${UWSGI_TIMEOUT} --http-keepalive --add-header ${UWSGI_HEADERS} --buffer-size ${UWSGI_BUFFER_SIZE} --enable-threads --workers ${UWSGI_WORKERS} --cheaper ${UWSGI_CHEAPER} --cheaper-algo ${UWSGI_CHEAPER_ALGO} --cheaper-initial ${UWSGI_CHEAPER_INITIAL} --cheaper-step ${UWSGI_CHEAPER_STEP} --harakiri-verbose --lazy-apps --import=ddtrace.bootstrap.sitecustomize
fi