From 233c14ec2d9d72d8801a59231c7ca7f5ccb0f745 Mon Sep 17 00:00:00 2001
From: danijoo <danijob88@googlemail.com>
Date: Sun, 27 Nov 2022 10:59:54 +0100
Subject: [PATCH] run app with gunicorn

---
 Dockerfile       | 14 ++++++++++----
 gunicorn.conf.py |  8 ++++++++
 requirements.txt |  3 ++-
 3 files changed, 20 insertions(+), 5 deletions(-)
 create mode 100644 gunicorn.conf.py

diff --git a/Dockerfile b/Dockerfile
index 8594b1c..e332aac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,17 @@
-# build pdfact
+# STEP 1: build pdfact
 FROM ubuntu:20.04
+
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update -y && apt-get upgrade -y && apt-get install -y maven git
 
 WORKDIR /
+# TODO freeze revision?
 RUN git clone https://github.com/ad-freiburg/pdfact.git
 WORKDIR pdfact
 
 RUN mvn install -DskipTests
 
+# STEP 2: run service
 FROM alpine:latest
 WORKDIR /
 
@@ -26,12 +29,15 @@ RUN apk add --no-cache python3 \
     && python3 -m ensurepip \
     && pip3 install --upgrade pip setuptools
 
+# set environment variables
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
 
 # install flask app
 WORKDIR /app
 COPY ./requirements.txt .
 RUN pip install -r requirements.txt
 
-COPY app.py .
-ENTRYPOINT ["python3"]
-CMD ["app.py"]
+COPY app.py gunicorn.conf.py ./
+
+ENTRYPOINT ["gunicorn", "--conf", "gunicorn.conf.py", "--bind", "0.0.0.0:80", "app:app"]
diff --git a/gunicorn.conf.py b/gunicorn.conf.py
new file mode 100644
index 0000000..795268c
--- /dev/null
+++ b/gunicorn.conf.py
@@ -0,0 +1,8 @@
+loglevel = "info"
+errorlog = "-"  # stderr
+accesslog = "-"  # stdout
+worker_tmp_dir = "/dev/shm"
+graceful_timeout = 120
+timeout = 120
+keepalive = 5
+threads = 4
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 3c78d8f..bd753fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
-Flask==2.2.2
\ No newline at end of file
+Flask==2.2.2
+gunicorn==20.1.0
\ No newline at end of file