Nginx not serving my Flask website
Question
I am following this example and this answer on stackoverflow and I am stuck.
I am running this example on a digitalocean VPS. My file structure is as follows:
project structure
docker-compose.yml
mainweb/
nginx/
README
docker-compose.yml
version: '2'
services:
app:
restart: always
build: ./mainweb
command: gunicorn -w 2 -b :5000 wsgi:app
networks:
- mainnet
expose:
- "5000"
ports:
- "5000:5000"
nginx:
restart: always
build: ./nginx
networks:
- mainnet
links:
- app
volumes:
- /www/static
expose:
- 8080
ports:
- "8880:8080"
networks:
mainnet:
mainweb/
app.py
Dockerfile
requirements.txt
templates/
wsgi.py
mainweb/app.py
from flask import Flask, render_template
app=Flask(__name__)
@app.route('/')
def home()():
return render_template('templates/home.html')
if __name__=="__main__":
app.run(host="0.0.0.0", port=5000)
mainweb/Dockerfile
FROM python:3.5
MAINTAINER castellanprime
RUN mkdir /mainweb
COPY . /mainweb
WORKDIR /mainweb
RUN pip install -r requirements.txt
mainweb/templates/
home.html
mainweb/templates/home.html
<!doctype html>
<html>
<head>
<title> My website </title>
</head>
<body>
<h1> I am here </h1>
</body>
</html>
mainweb/wsgi.py
from app import app
if __name__=="__main__":
app.run()
nginx
Dockerfile
sites-enabled.conf
static/
nginx/Dockerfile
FROM nginx:1.13.1-alpine
MAINTAINER castellanprime
ADD sites-enabled.conf /etc/nginx/conf.d/sites-enabled.conf
ADD static/ /www/static/
nginx/sites-enabled.conf
server{
listen 8080;
server_name app; # Should I put my actual www.XXXXXX.XXXXX address here
charset utf-8;
location /static{
alias /www/static/;
}
location / {
proxy_pass http://app:5000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X_Forwared-For $proxy_add_x_forwarded_for;
}
}
nginx/static
css/
js/
After I run the command docker-compose up -d , I check the www.XXXXXX.com:8880, or www.XXXXXX.com:8080 from another web client on another system.
I get the standard nginx web page.
How do I redirect it to the home.html?
1 answers
solution1
6 ACCPTED 2017-06-24 02:53:40
Take a step back and run the Flask app alone.
You have some syntax errors.
from flask import Flask, render_template
app=Flask(__name__)
@app.route('/')
def home(): # Remove double brackets
return render_template('home.html') # The templates folder is already picked up
if __name__=="__main__":
app.run(host="0.0.0.0", port=5000)
Then in a Docker container, and without gunicorn
FROM python:3.5
RUN mkdir /mainweb
COPY . /mainweb
WORKDIR /mainweb
RUN pip install -r requirements.txt
EXPOSE 5000
CMD ["python3","/mainweb/app.py"]
And run it, and see if it works.
cd mainapp
docker build -t flask:test .
docker run --rm -p 5000:5000 flask:test
Open http://server:5000
Then start on docker-compose with just that container and define nginx if you want.
nginx/Dockerfile
FROM nginx:1.13.1-alpine
ADD flask.conf /etc/nginx/conf.d/
EXPOSE 8080
nginx/flask.conf (I changed this based on a file that I have in a project)
server {
listen 8080; # This is the port to EXPOSE in nginx container
server_name app; # You can change this, but not necessary
charset utf-8;
location ^~ /static/ {
alias /usr/share/nginx/html/;
}
location / {
try_files $uri $uri/ @flask;
}
location @flask {
proxy_pass http://app:5000; # This is the port Flask container EXPOSE'd
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X_Forwared-For $proxy_add_x_forwarded_for;
}
}
And finally, the compose. You don't want to have your site exposing both 5000 and 80 (you don't want people to bypass nginx), so just don't expose 5000
version: '2'
services:
app:
restart: always
build: ./mainweb
networks:
- mainnet
nginx:
restart: always
build: ./nginx
networks:
- mainnet
links:
- app
volumes:
- ./mainweb/static:/usr/share/nginx/html
ports:
- "80:8080"
networks:
mainnet:
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