From 6b84e35c51c64ec0b8993418b2e850231b0a2941 Mon Sep 17 00:00:00 2001
From: Andrea Falconi <andrea.falconi@gmail.com>
Date: Fri, 4 Sep 2020 17:07:55 +0200
Subject: [PATCH] port gunicorn setup from #354.

---
 Dockerfile            | 13 +++++++------
 conf/supervisord.conf | 10 ++++++++++
 src/app.py            |  2 ++
 src/gunicorn.conf.py  |  3 +++
 src/uwsgi.py          |  8 ++++++++
 5 files changed, 30 insertions(+), 6 deletions(-)
 create mode 100644 conf/supervisord.conf
 create mode 100644 src/gunicorn.conf.py
 create mode 100644 src/uwsgi.py

diff --git a/Dockerfile b/Dockerfile
index 61bdb600..26eae99f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 FROM python:3.8.3-alpine3.12 as base
 FROM base as builder
-RUN apk --no-cache --update-cache add gcc python3 python3-dev py-pip build-base wget
+RUN apk --no-cache --update-cache add gcc python3 python3-dev py-pip build-base wget libffi-dev
 RUN ln -s /usr/include/locale.h /usr/include/xlocale.h
-RUN pip install pipenv
+RUN pip install pipenv gunicorn gevent
 RUN mkdir -p /src/ngsi-timeseries-api
 COPY Pipfile /src/ngsi-timeseries-api/Pipfile
 COPY Pipfile.lock /src/ngsi-timeseries-api/Pipfile.lock
@@ -10,10 +10,11 @@ RUN cd /src/ngsi-timeseries-api && { pipenv lock -r > /requirements.txt; }
 RUN pip install -r /requirements.txt
 
 FROM base
-RUN apk --no-cache add curl
+RUN apk --no-cache add curl supervisor
 COPY --from=builder /usr/local /usr/local
 COPY . /src/ngsi-timeseries-api/
-WORKDIR /src/ngsi-timeseries-api/src
-ENV PYTHONPATH=$PWD:$PYTHONPATH
+COPY conf/supervisord.conf /etc/supervisord.conf
 
-CMD python app.py
+EXPOSE 8668
+
+CMD ["supervisord", "-c", "/etc/supervisord.conf"]
diff --git a/conf/supervisord.conf b/conf/supervisord.conf
new file mode 100644
index 00000000..d456e71a
--- /dev/null
+++ b/conf/supervisord.conf
@@ -0,0 +1,10 @@
+[supervisord]
+nodaemon=true
+
+[program:quantumleap]
+command=gunicorn -b 0.0.0.0:8668 uwsgi --log-level DEBUG --worker-class gevent --worker-connections 10000 --config gunicorn.conf.py
+directory=/src/ngsi-timeseries-api/src
+autostart=true
+autorestart=true
+startsecs=10
+startretries=3
diff --git a/src/app.py b/src/app.py
index 7d88971f..c916f6f9 100644
--- a/src/app.py
+++ b/src/app.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 from utils.hosts import LOCAL
 
 
@@ -10,3 +11,4 @@
                 # validate_responses=True, strict_validation=True
                 )
     app.run(host=LOCAL, port=8668)
+    application = app.app
diff --git a/src/gunicorn.conf.py b/src/gunicorn.conf.py
new file mode 100644
index 00000000..984c16ef
--- /dev/null
+++ b/src/gunicorn.conf.py
@@ -0,0 +1,3 @@
+import multiprocessing
+
+workers = multiprocessing.cpu_count() * 4 + 1
diff --git a/src/uwsgi.py b/src/uwsgi.py
new file mode 100644
index 00000000..766494c7
--- /dev/null
+++ b/src/uwsgi.py
@@ -0,0 +1,8 @@
+import connexion
+app = connexion.FlaskApp(__name__, port=8668, specification_dir='../specification/')
+app.add_api('quantumleap.yml',
+            arguments={'title': 'QuantumLeap V2 API'},
+            pythonic_params=True,
+            # validate_responses=True, strict_validation=True
+            )
+application = app.app