A simple django chatapp with swampdragon runs perfectly locally. But when I try to deploy it on heroku it shows "Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 60 seconds of launch" in the log. In the proc file I added "web: python server.py". which runs in the port 9999 locally. But how do I handle the port 9999 with heroku?
See this question:
Setting the port for node.js server on Heroku
You can't specify which port you want to use on Heroku.
Heroku sets it 'automatically' so you should read what the PORT variable is in the environment then use that.
heroku config:get PORT
references: https://devcenter.heroku.com/articles/config-vars
Related
I have deployed a Flask app on Heroku and I cannot open it. In the logs, here is the error:
2022-06-25T18:36:16.177143+00:00 app[web.1]: Address already in use
2022-06-25T18:36:16.177143+00:00 app[web.1]: Port 5000 is in use by another program. Either identify and stop that program, or start the server with a different port.
2022-06
I haver changed the port severally, but same error
Solved
I removed
app.run(port="8000")
and I deployed it
How do i run django application without port number: i had tried Django: Run django app on server without port? but didn't work.
Web services must bind a port on a interface of the system. So, you should specify a port number to run your Django application. The default port number for HTTP is 80, for HTTPS 443. But you can use a custom port between [1-65535]:
For example;
python manage.py runserver 7000
You may try the following:
python manage.py runserver 80
or if you don't have permissions (assuming you are using Linux):
sudo python manage.py runserver 80
Then, you can access your application: http://localhost/
In general, web services need a port to run. If the port used is default http (80) or https (443) port, modern web browsers hide it from seeing in the address bar.
In a development server, you can hide the port(because you don't want to see it anymore) by assigning it to port 80 if it is not used by any other web service in the system(otherwise django will complain):
python manage.py runserver 80
In a production server, you need to use servers like Gunicorn to run your django app in the backend and a web server like Nginx or Apache to serve your backend to external world. In that case, since web servers use http/https ports, no ports will be visible in the browser.
I'm a complete newbie when it comes to networking. I have two PCs on my LAN both running Manjaro. My main aim is to test functionality on a Django server running on one PC, from the other. I am running the Django server on the PC with ip address 192.168.1.138 using the command
python manage.py runserver 192.168.1.138:8000
and in settings.py
ALLOWED_HOSTS = ['localhost', '192.168.1.138']
I can ping 192.168.1.138 from the client PC, and ping the client PC from the server PC. But if I enter the ip address/port into the browser, it fails with
took too long to respond
I don't know if this a separate problem or a manifestation of the first, but when I run NitroShare, I am able to 'see' the PC running the Django server from the PC acting as the client, but if I try to transfer a file, again it times out. I am unable to see the client from the server in NitroShare.
Any suggestions or help gratefully received
Ensure you don't have a firewall running (or that it allows connections to port 8000). Manjaro's docs imply there might be no firewall by default, but in case there is, see https://wiki.manjaro.org/index.php?title=Firewalls
Set ALLOWED_HOSTS = ['*'], don't bother with limiting them.
Run with python manage.py runserver 0:8000 ; the 0 stands for 0.0.0.0, i.e. has the server listening on all network interfaces.
First I would scan with the other PC the open ports of you "Server"-PC, you can do that with tools like Nmap. Make sure you opened the ports of your "Server"-PC at your router interface. Another option could be the launching of the django app in a docker container. Here's the link of the official docker image at DockerHub:
https://hub.docker.com/_/django
I'm currently testing Django on Codenvy but I have difficulties to find out how to connect to the build-in development server of Django.
I added a server in the Workspace configuration with port 8000 and http protocole.
I added the following in the run command of Codenvy's project :
Commande line :
cd ${current.project.path} && python manage.py runserver
Preview :
http://${server.port.8000}
The run prompt provide me a url : http://nodexx.codenvy.io:xxxxx
Going to this URL print a message : ERR_CONNECTION_REFUSED
I'm very new to all of this. Do you know what is missing ?
Django dev server by default accepts connections only from localhost. In order to access it from another machine, start runserver by binding it with an IP, or 0 for the app to be accessed from everywhere.
python manage.py runserver 0:8000
The above command runs the server in 8000 port, binding the network to 0.0.0.0, which means the app can be accessed from anywhere
Please, I need to configure Django Channels on redis-channel-layer on windows IIS in production. It is running very well in development.
I have installed redis, daphne. I have set the IIS as proxy server with URL Rewrite pointing the Inbound to localhost 6379 to redis-layer channels. I used python manage.py runworker. and also started the daphne server with the daphne command.
They all ran very well, but there is no websocket handshake for my url.