[PYTHON] Steps to build a Django environment with Win10 WSL Ubuntu18.04 + Anaconda + Apache2

I will summarize the procedure to create a Django + Apache development environment on Ubuntu 18.04 of Windows 10 WSL

procedure

Allows apache2 to access python via mod_wsgi. Also, I will make VS code available as a remote IDE that can be used with WSL.

1. Install anaconda3
2. Install django
3. Create a django project and migrate
4. Install apache2
5. Install mod_wsgi
6. Added to apache2 configuration file
7. Make vscode available

Since systemctl cannot be used in WSL, the operation of apache changes a little, when using anaconda, you have to change the reference setting by yourself unless you install mod_wsgi with pip, the setting of apache2.conf is difficult to understand, it is easy to stumble around I think it's the place.

1. Install WSL

Enable WSL and install Ubuntu 18.04 https://qiita.com/matarillo/items/61a9ead4bfe2868a0b86

Update

terminal

sudo apt update
sudo apt upgrade

2. Install Apache2

Install and start apache2 and apache2-dev

terminal

sudo apt install apache2
sudo apt install apache2-dev
sudo /etc/init.d/apache2 start

Now apache should wait at http: // localhost. If you open it in a browser, index.html in the document root / var / www / html / will open. To stop it is stop

terminal

sudo /etc/init.d/apache2 stop

When restarting to reflect the setting change, restart

terminal

sudo /etc/init.d/apache2 restart

3. Install Anaconda

Install pyenv

terminal

git clone https://github.com/yyuu/pyenv.git ~/.pyenv

Through PATH

terminal

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
source ~/.bashrc

Check the version of anaconda you can install

terminal

pyenv install -l | grep anaconda

Install the version of anaconda of your choice. Below, the 2020.02 version is installed.

terminal

pyenv install anaconda3-2020.02
pyenv rehash
pyenv global anaconda3-2020.02

Put it in your PATH.

terminal

echo 'export PATH="$PYENV_ROOT/versions/anaconda3-2020.2/bin/:$PATH"' >> ~/.bashrc
conda init
source ~/.bashrc

Create a conda environment. Below we are creating a python3.7 environment named django. xxxx is the user name.

terminal

conda create -n django python=3.7
echo 'export PYTHONHOME=/home/xxxx/.pyenv/versions/anaconda3-2020.02' >> ~/.bashrc
echo 'export PYTHONPATH=/home/xxxx/.pyenv/versions/anaconda3-2020.02/bin:/home/xxxx/.pyenv/versions/anaconda3-2020.02/lib/python3.7/site-packages' >> ~/.bashrc
conda create django

4. Install django

Install and check version

terminal

pip install django
django-admin --version

Let's create a project and move it. You can create a project named hoge by creating a directory and doing django-admin startproject hoge.

terminal

mkdir django
cd django
django-admin startproject proj1

Execute manage.py created in the created directory from python to run a simple server and check the operation.

terminal

cd proj1
python manage.py migrate
python manage.py runserver

Open http: // localhost: 8000 in your browser and you should see the django sample page.

5. Install mod_wsgi

There is also a way to install mod_wsgi from apt, but mod_wsgi installed with apt is set to refer to python when apt install python is done instead of anaconda by default. If you use anaconda, I think it's easier to install from pip.

terminal

pip install mod_wsgi
pip install mod-wsgi-httpd

Put it in your PATH. xxxx is the user name.

terminal

echo 'export PATH=/home/xxxx/.pyenv/versions/anaconda3-2020.02/bin:$PATH' >> ~/.bashrc
source ~/.bashrc

Mod_wsgi should now work. Let's run a simple server and check the operation. The following command will wait for the simple server at http: // localhost: 8000, so open it in your browser.

terminal

mod_wsgi-express start-server

Finally, get the information to write in the Apache2 configuration file.

terminal

mod_wsgi-express module-config

terminal

LoadModule wsgi_module "/home/xxxx/.pyenv/versions/anaconda3-2020.02/lib/python3.7/site-packages/mod_wsgi/server/mod_wsgi-py37.cpython-37m-x86_64-linux-gnu.so"
WSGIPythonHome "/home/xxxx/.pyenv/versions/anaconda3-2020.02"

Let's copy the above somewhere.

6. Associate apache and mod_wsgi

Add apache2.conf as officially done by django. https://docs.djangoproject.com/ja/2.0/howto/deployment/wsgi/modwsgi/

If you created a django project in / home / xxxx / django /, it would look like this: The first two lines are a copy of what is displayed in mod_wsgi-express module-config, with the PATH for wsgi.py created in the django project directory created by WSGIScriptAlias and the manage.py for the django project created by WSGIPythonPath. The directory PATH and Direcoty are the above wsgi.py directory PATH.

/etc/apache2/apache2.conf

LoadModule wsgi_module /home/xxxx/.pyenv/versions/anaconda3-2020.02/lib/python3.7/site-packages/mod_wsgi/server/mod_wsgi-py37.cpython-37m-x86_64-linux-gnu.so
WSGIPythonHome /home/xxxx/.pyenv/versions/anaconda3-2020.02

WSGIScriptAlias / /home/xxxx/django/proj1/proj1/wsgi.py
WSGIPythonPath /home/xxxx/django/proj1


<Directory /home/xxxx/django/proj1/proj1>
<Files wsgi.py>
Require all granted
</Files>
</Directory>

I changed the apache settings, so restart it.

terminal

sudo /etc/init.d/apache2 restart

Open http: // localhost in your browser and check. If it looks like the above, it's OK.

If the contents of apache2.conf are incorrect or some packages cannot be installed, an internal server error will occur as shown below. It's hard to understand the cause with this alone, so let's judge by looking at the apache error log. If you keep the default settings, you can see it below.

terminal

tail -f /var/log/apache2/error.log

I think it's either because I forgot to put something in or the PATH is different.

7. Make it possible to develop with VScode

WSL does not have a GUI, but you can use VScode's WSL extension to develop with a GUI. Enable WSL extension after installing VScode on Windows 10. When VS code is started from WSL with the following command, it seems that VS code on the Windows side will come to run from the WSL side.

terminal

cd test
code .

By the way, the permission limit is the same as Ubuntu, so you can edit with the authority when you execute code. For example, in / var / www / html / where the apahce static file is placed, the owner is root, so if you try to change it from the user account, you will get an error like the image below. You can change it by changing the owner, but I don't know if it's good for security, so please let me know. By the way, it seems that sudo code. Cannot be executed.

terminal

Unable to write file 'vscode-remote://wsl+ubuntu-18.04/var/www/html/test.html' (NoPermissions (FileSystemError): Error: EACCES: permission denied, open '/var/www/html/test.html')

reference

https://docs.djangoproject.com/ja/2.0/howto/deployment/wsgi/modwsgi/ https://codelab.website/anaconda-django/ https://qiita.com/itisyuu/items/dafa535adc8197208af1 https://blog.capilano-fw.com/?p=369