I have been having some problems with deploying my django app to heroku. I have triple checked the getting started guide several times and I am getting quite frustrated. The most annoying thing is that I don't get any errors during deployment, in heroku logs or during local deployment. Here is an SO question with more details.
The easiest solution at this stage would probably be to reverse engineer a minimal working django app which I could push straight to my heroku repo without any extra config.
(The smaller the app the better a simple <h1>hello world</h1> would do but it would need to include venv, requirements.txt and of course Procfile)
Thanks
Take your pick. Either of these should work for you.
https://github.com/auzigog/django-template-heroku
https://github.com/cyberdelia/django-heroku-template
You can try http://django.ironcoder.me - visual composer, which deploys working Django app to your heroku account.
Related
Any help would be much appreciated. I created a repository here where all files are linked. I'm currently trying to learn how to deploy an ML model to Heroku. This is a pretty simple model and I was following along with a YouTube tutorial. When I run 'python app.py' on my terminal, the local server does run correctly, showing the exact interface I want.
When trying to deploy it on Heroku, I linked my GitHub repository and selected 'Deploy Branch'; Here, Heroku states that the app was successfully deployed. HOWEVER, when I then try to view, a page comes up stating Application Error.
As mentioned, I'm really not sure what's going wrong and would appreciate any guidance to get this working – I'd like to deploy other ML models I've been working on and getting this preliminary one running would be a huge help. Any advice?
Thanks!
It seems like you have forgotten to create the Procfile. This is necessary for Heroku as it tells Heroku how to startup your application on it's servers.
Since you're server file is app.py and the Flask app is app as well, the following would be the contents of the Procfile
web: gunicorn app:app
Also update your requirements.txt file by adding gunicorn, as an example what i had was
gunicorn==20.1.0
For more information about the Procfile see https://devcenter.heroku.com/articles/procfile
I have deployed this personally and it works fine now 😁
I'm a newbie and learning Heroku systems. I want to run this CMS on Heroku. I ran it many times on my machine and on others' servers. But I don't have servers all the time. I want to make it on Heroku for contestants.
As always I tried to follow the docs of this app. The requirements and setup part runs fine. But the database creation and other parts I couldn't cope up with. As a result, it shows an application error. The app also uses Postgres. But the commands given for ubuntu, I don't know how I can make them in Heroku.
If it sounds stupid question please pardon me. If I have to learn about something please give me some resources to learn.
Or It it is not possible to run this app with heroku, is there any SSH tunelling trick to just make the contestant part online with heroku Or is there any way to just tunnel my localhost to heroku web app domain? Thank You Very Much.
I'm currently trying to upload my django app to pythonanywhere and i keep running into errors with my wsgi application, it says "sys" is not defined. I have correctly followed all the steps in the manual that pythonanywhere provides, yet it is still not working. I want to know if anyone has successfully uploaded a django app with pythonanywhere and how he/she got it done; or if there are better alternatives i can explore. Thanks. I would be waiting for an answer.
Pythonanywhere advice to set up a virtual environment, in which you install all dependancies. Have you done so?
I'm currently learning Django and getting a decent grasp of it. I know you can start the server with python manage.py runserver. But then there is also heroku ps:scale web=1 followed by heroku open to open the web page at the subdomain you chose on the host herokuapp.com. What is the point of using heroku vs just runserver? When it comes time to deploy to production is that what heroku is used for as I read it was for deployment? What is exactly is heroku used for and what are the reasons? When creating a professional django web site/application is heroku required or just very useful? If so why? I don't really understand the reason for using heroku. And I'm curious what the best practices are for django and whether they include using or not using heroku.
Aside from the heroku question, what are the best practices for django as far as setting a domain name and such (other than the herokuapp.com subdomain name) and also as far as what other components/software solutions are worth using with django?
One of the things I'm working on is an FTP portal on the website that people can login to and upload files. Does django have plugins/python modules for such a thing or must it be done custom? Which brings me to my final question, What kind of addons/modules does django offer to avoid reinventing the wheel when implementing a django website/app's certain features?
The tutorial I'm following: http://tutorial.djangogirls.org/en/django_orm/README.html
has helped me get a grasp on django, but I'm curious about the more advanced parts of it. Such as custom modules, custom styling, custom scripts (whether they are js or strictly python).
If someone could point me in the right direction or offer any suggestions it would be much appreciated. The tutorial has me using the modules: dj-database-url, whitenoise, gunicorn, python-dateutil, psycopg2 , requests. I know what some of them do, but what is the purpose of psycopg2, whitenoise, dateutil, and dj-database,url? Are there any other modules worth using?
Sorry for the wall of questions, but I'm trying to understand django as best I can so that I can do a correct assessment when putting together a django project.
Thanks in advance.
EDIT, final questions:
1) Also when i used heroku they gave me a subdomain at herokuapps.com Can I set my own URL and still use heroku?
2) And last but not least, heroku makes you register and gives you a subdomain on herokuapp.com Is there a way to use heroku with your own domain rather than the one they give you? Is there a specific way to do it?
EDIT 2:
When I do runserver it works fine, but when i run it with heroku ps:scale web=1 and then heroku open it opens but only shows the title at the top of the page, and no content. Not sure exactly why that is. Can someone explain the difference between runserver and heroku ps:scale web=1 followed by heroku open??
python manage.py runserver is only for development. Never use it in production.
Heroku makes it super easy to deploy your Django code. You only need some configs and git push heroku master. But it's not the only way to deploy your code. You can also set up a server with a webserver like Nginx, Gunicorn as WSGI server, and a database of your choice. To set things up, you need to know something about Linux and the command line.
So if you don't know how to set up a server, Heroku can be very useful.
Heroku supports custom domains, and it's easy to set up.
As Mikeec3 mentioned, "Two Scoops of Django" is a very good read.
If you are looking for django packages, www.djangopackages.com is a good place to start.
psycopg2 is for postgresql usage with your app. White noise allows you to serve your staticfiles without nginx if using gunicorn. Requests is an easy to use urllib2 library with pythonic calls to work with apis from other websites.
If you want to do some testing with say facebook logins Heroku is a great place to go to, especially if you need a url outside of localhost.
My suggestion is you read Two scoops of Django http://twoscoopspress.org/products/two-scoops-of-django-1-6
It goes over alot of best practices and serves as a great tutorial after polls. I suggest also incorporating django-bower into your project. Ill list a few great things to add.
Django Bower: https://github.com/nvbn/django-bower - Helps organize static files
Crispy Forms : https://github.com/maraujop/django-crispy-forms - Great form rendering, great with bootstrap
Django Rest Framework: https://github.com/tomchristie/django-rest-framework - REST APIs
These are just to start, there's alot to learn.
I have a Django project with 1 app that is working locally and I am trying to make it work on the server but I imagine I am still missing something...
The steps I have followed are:
1) create a virtualnev
2) Install django and the libraries I need
3) copy my local project to the server, keeping the same directory structure
4) create the file passenger_wsgi.py (python passenger_wsgi.py did not return any error)
After this do I need to do anything like python manage.py runserver? Or with this I should be already able to see the site through mydomain/my project/ my app (when I do ot just get an error 404)?
I have read the django book and followed the tutorial, but this part is not well described anywhere...
Thanks in advance for any help!
Deployment is explained in the documentation.
You need to actually serve your application with some kind of HTTP server and something to run your python code. Some of the possible combinations are:
nginx with uWSGI
Any web server as reverse proxy with gunicorn
Apache with mod_wsgi
Your hosting service may or may not give you the choice or even the possibilty to do this.
There is a list of Django friendly hosters in the Django wiki.
Well firstly you might want to go through the previously asked questions.
When you are deploying using passenger you do not need to run manage.py runserver , etc. The passenger_wsgi file should take care of it.
You might want to check this link out, in the first answer also contains link to Dreamhost which details quite extensively on how to achieve the same.
Visit Deploying Django app using passenger
From my personal experience I found Nginx and uwsgi setup to be much more easier to handle and work and debug in the logs, but this is subjective to your needs and platform you may have.