I want to deploy my django app on heroku , which I have built on Windows machine.
Can I deploy the same application using heroku toolbelt for windows.
Or I have to setup all the things on a unix machine.
And one more thing the application uses Python 3 and Django 1.8
Will that be any problem.
There aren't any special process listed in the docs for windows usersYou should actually deploy from a unix environment, you have to create your Procfile, requirements.txt and make some changes to your settings.py file, it's easy and straight forward.
A step by step guide can be found here https://devcenter.heroku.com/articles/getting-started-with-django
Some problems you may encouter:
Internal Server Error heroku/django
Django migrations fail in heroku
Also make sure you add your migrations and cache folders to your .gitignore file.
Related
I have created a new Heroku site and I am developing it on my Linux box, using Django. The standard "getting started" site Heroku created for me is called "gettingstarted". How can I change that / configure Heroku to forget about it?
I was reading through the Django tutorial, which explains how to create a new site (django-admin startproject my_site). I did this successfully for a demo project. Then I tried to do it under the Heroku directory, because I wanted a better name for my site than "gettingstarted". I noticed that every time I start the Heroku server under my project, it says ...using settings 'gettingstarted.settings'. I found that this is configured in manage.py and I change it.
This is the directory layout I have
/some/path/heroku_random_name/gettingstarted/settings.py
/some/path/heroku_random_name/my_site/settings.py
/some/path/heroku_random_name/my_app
This is what I have in
/some/path/heroku_random_name/manage.py
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'my_site.settings')
so I would expect that the site that matters is my_site.
I got it to the point where I can run the site successfully on my local machine, and I can tell that it using the settings from my_site. But when I deploy the project to Heroku, it does not recognize my_app until I register it in gettingstarted/settings.py. In other words, when running in Heroku, it is still using gettingstarted as the site to run.
I am new to all this, so I left gettingstarted in the project, because I am afraid to break things. But how can I configure Heroku to execute settings from my_site and not from gettingstarted?
Found it: it's configured in Procfile.
It's confusing because it's configured in one place for running locally and in a different place for running hosted at Heroku.
I've followed the instructions from Heroku's "Getting Started with Django", and successfully deployed my application on the Heroku server.
However, there wasn't any tutorial on how to test my application locally before committing and pushing any change on my codes. For example, after I make some minor changes on my css file or Django views, I want to test it on my local computer first, instead of having to do "git push heroku master" every time..
How do I do this with Heroku?
Thanks
To test your app locally you don't need to use Heroku. Simply go to the folder where your manage.py is and do:
python manage.py runserver
It will fire up a development web server with your app you can access using the following URL in your browser: http://localhost:8000.
This web server reloads automatically when you make changes to the Python code. See the Django tutorial: https://docs.djangoproject.com/en/1.7/intro/tutorial01/#the-development-server
Additionally, you might need to set some variables in your environment (export VARNAME=value) to make it work with 12-factor-style settings.
I have been learning Django in the development mode for a two months and I am up to speed with most basic aspects of python + django now. However, I was using the built-in runserver till this time
Now, I have got a Webfaction hosting account and wanted to know the following
1) Webfaction sets up the project with a certain Django version (say 1.6.4) and Python version (say 2.7) initially
The project directory (for say project MYAPP) is /<>/webapps/MYAPP
When the site is running in production mode, how does the apache server know which Python version, and which site-packages versions to use with the MYAPP source code to render the site?
I can see that the MYAPP folder has a lib/python2.7 folder, however when I am connected to SSH terminal, and do a "which python", i see :
which python
/usr/local/bin/python
so, do I take that this is the Python executable that is being used for rendering the website instead of the one in webapps/MYSITE/lib/python2.7 folder? How does the information/data flow about which programs to use during rendering the site with apache mod_wsgi work?
2) I was using a virtualenv in the development mode during testing. How do I use this on webfaction in production mode?
3) I am using Pycharm IDE. It worked well for the development mode. I can see that it has a remote interpreter configuration and a Deployment setting/option.
The python path that the remote interpreter settings tool detects automatically is the python executable at /usr/local/bin/python
Is this fine, or should I be pointing it to the more local python2.7 in the webapps/lib folder?
Thanks a lot of the answers and pls let me know if you need any supplemental info
Note to the OP: This should really be three separate questions.
1) For WebFaction, your Django app will use the Python version (and libraries, etc.) defined in:
~/webapps/<appname>/apache2/conf/httpd.conf
Specifically, you'll want to look at what is defined for WSGIPythonPath (which should mostly match up with WSGIDaemonProcess unless you modify the config and are doing something strange).
Note that which python just tells you what the default python is in your shell. This has nothing to do with the config file for the webapp.
2) You may want to expand on this as to exactly what your use case is and why the default Django webapp created by WebFaction doesn't fit your needs. But the short answer is:
Create a virtualenv on your WebFaction account.
Install Django, etc. into the virtualenv.
Edit the httpd.conf file I mentioned above to use your virtualenv instead.
I've done this with both a Django webapp made via the WebFaction control panel and via a custom mod_wsgi webapp. So it does work. Just make sure to use the right Python version when making your virtualenv.
3) I don't use PyCharm so I can't answer this (one reason why this question should be split up).
I was wondering if it is possible to deploy to heroku with out putting my django project on git?
My another question. I already have my app on heroku. Now I want to make changes to it. But the computer I had the soruce code crashed. So how do I download my project files from heroku?
No. ( But there is a plugin to do that, but I would say why bother. But.. - https://github.com/ddollar/heroku-push)
But all you have to do is git init to setup a repo, and push to the heroku remote after setting up an app. You don't have to publish your repo anywhere.
You can get back your code by using:
heroku clone <appname>
I'm still busy with my Django learning adventure. In another post I asked about how to structure a Django project and applications using buildout. In the details of doing this arose another issue, simply installing 3rd party Django applications using either easy_install or setup.py. My question is, where should you install a Django application? If looking at Django documentation, one would think to put a Django application inside the project folder. But if your Django application is an egg (a mystifying term in my opinion) and you use easy_install without option '-b' (build-directory) the application will be installed into your current python site-packages directory. Using option '-b' will put a copy of the application in your directory, but still will install it in your current site-packages directory. Then there are other options like --install-dir and prefix. Also how should installation happen when using setup.py which have similar options as buid-directory, install-dir, and prefix?
Is there a 'good practice' standard for installing 3rd party Django applications into a Django project?
Thank a lot,
Todd
They usually aren't installed directly into the project. They're either installed into the system's site-packages/ directory, or in the virtualenv's site-packages/ directory, or in some other well-defined place that the sysadmin has set for this purpose.
This is where virtualenv comes into its own. It basically enables a project-specific site_packages directory, where you can install all the third-party applications that relate to your project. I'd definitely recommend it.
Follow these steps :
change the path according to your local setup
C:\Python27\Lib\site-packages>python pip install django
Create Project
Go to folder where you want to create a project
E:\djangoProject>C:\Python27\Lib\site-packages\django\bin\django-admin.py startproject myproject
python manage.py help is used to list all the commands
Manage.py This file is kind of your project local django-admin for interacting with your project via command line (start the development server, sync db...)
Run Server
E:\djangoProject\myproject>python manage.py runserver
Create App
E:\djangoProject\myproject>python manage.py startapp myapp
Go to myproject settings.py and register your app “myapp” created under INSTALLED_APPS
Migrate DB E:\djangoProject\myproject>python manage.py migrate
Migrate will create necessary tables or collections depending on your db type, necessary for the admin interface to run