Difference between revisions of "Flask"
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=Integrate with nginx= | =Integrate with nginx= | ||
− | https://vladikk.com/2013/09/12/serving-flask-with-nginx-on-ubuntu/ | + | |
+ | Mayor part is from this site [https://vladikk.com/2013/09/12/serving-flask-with-nginx-on-ubuntu/]. | ||
+ | |||
+ | These are the configuration files I needed. | ||
+ | |||
+ | * Install uwgi-emperor and it's python plugin | ||
+ | |||
+ | Generic configuration file (/etc/uwsgi-emperor/emperor.ini): | ||
+ | [uwsgi] | ||
+ | # try to autoload appropriate plugin if "unknown" option has been specified | ||
+ | autoload = true | ||
+ | # enable master process manager | ||
+ | master = true | ||
+ | # spawn 2 uWSGI emperor worker processes | ||
+ | workers = 2 | ||
+ | # automatically kill workers on master's death | ||
+ | no-orphans = true | ||
+ | # place timestamps into log | ||
+ | log-date = true | ||
+ | # user identifier of uWSGI processes (same as who runs the web-server) | ||
+ | uid = www-data | ||
+ | # group identifier of uWSGI processes (same as who runs the web-server) | ||
+ | gid = www-data | ||
+ | # vassals directory | ||
+ | emperor = /etc/uwsgi-emperor/vassals | ||
+ | plugins = python3 | ||
+ | |||
+ | Application configuration file (/etc/uwsgi-emperor/vassals/welcome.ini) | ||
+ | |||
+ | [uwsgi] | ||
+ | #application's base folder | ||
+ | base = /opt/apo/flask | ||
+ | #python module to import | ||
+ | app = welcome | ||
+ | module = %(app) | ||
+ | #home = %(base)/venv | ||
+ | pythonpath = %(base) | ||
+ | #socket file's location | ||
+ | socket = /var/local/uwsgi/%n.sock | ||
+ | #permissions for the socket file | ||
+ | chmod-socket = 666 | ||
+ | #the variable that holds a flask application inside the module imported at line #6 | ||
+ | callable = app | ||
+ | #location of log files | ||
+ | logto = /var/log/uwsgi/%n.log | ||
+ | plugins = python3 | ||
+ | |||
+ | * Create a virtual webserver (port 80 is save enough if you have a secure front-end server) | ||
+ | ---- | ||
+ | |||
+ | |||
+ | <syntaxhighlight lang="nginx"> | ||
+ | server { | ||
+ | listen 80 ; | ||
+ | listen [::]:80 ; | ||
+ | |||
+ | root /var/www/flask; | ||
+ | |||
+ | server_name <fqdn>; | ||
+ | |||
+ | location / { | ||
+ | include uwsgi_params; | ||
+ | uwsgi_pass unix:/var/local/uwsgi/welcome.sock; | ||
+ | } | ||
+ | } | ||
+ | </syntaxhighlight> |
Revision as of 23:29, 14 February 2020
basics
Check this[1]
Hello world app:
#!/usr/bin/env python3
from flask import Flask
print(__name__)
app = Flask(__name__)
@app.route('/')
def main():
return 'Hello World'
if __name__ == '__main__':
app.run() # Default (listen to localhost port 5000, use flash run for options)
#app.run(host='0.0.0.0',port=8080,Debug=True) # Run in debug mode, listen to all hosts on port 8080
Run the build-in server listening to all
export FLASK_APP=welcome_app.py
flask run --host=0.0.0.0
welcome_app * Serving Flask app "welcome_app" * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
Now you can browse to <serverIP>:5000
templates
https://flask.palletsprojects.com/en/1.1.x/patterns/templateinheritance/#template-inheritance
Integrate with nginx
Mayor part is from this site [2].
These are the configuration files I needed.
- Install uwgi-emperor and it's python plugin
Generic configuration file (/etc/uwsgi-emperor/emperor.ini):
[uwsgi] # try to autoload appropriate plugin if "unknown" option has been specified autoload = true # enable master process manager master = true # spawn 2 uWSGI emperor worker processes workers = 2 # automatically kill workers on master's death no-orphans = true # place timestamps into log log-date = true # user identifier of uWSGI processes (same as who runs the web-server) uid = www-data # group identifier of uWSGI processes (same as who runs the web-server) gid = www-data # vassals directory emperor = /etc/uwsgi-emperor/vassals plugins = python3
Application configuration file (/etc/uwsgi-emperor/vassals/welcome.ini)
[uwsgi] #application's base folder base = /opt/apo/flask #python module to import app = welcome module = %(app) #home = %(base)/venv pythonpath = %(base) #socket file's location socket = /var/local/uwsgi/%n.sock #permissions for the socket file chmod-socket = 666 #the variable that holds a flask application inside the module imported at line #6 callable = app #location of log files logto = /var/log/uwsgi/%n.log plugins = python3
- Create a virtual webserver (port 80 is save enough if you have a secure front-end server)
server {
listen 80 ;
listen [::]:80 ;
root /var/www/flask;
server_name <fqdn>;
location / {
include uwsgi_params;
uwsgi_pass unix:/var/local/uwsgi/welcome.sock;
}
}