如何从docker-compose安装requirements.txt？

Question

I have created a dockerized django app using docker-compose(following this tutorial). Now I want to add some packages to requirements.txt and install them. What is the right way to do that?

Answer 1

From the tutorial you point to - the statement

ADD requirements.txt /code/ copies requirements.txt file from your current directory on the host into /code/ directory inside the container. When docker-compose run command is executed, it first builds the container at which point it loads the 'requirements.txt' file into it.

So if you want to make changes to it, do it locally before you run compose. This will build and run your dockerized app with the new packages in your modified requirements.txt file.

Answer 2

Go into your virtual environment. Your file name is requirements.txt

You need to type in the terminal

pip install -r requirements.txt

This should install all the packages listed in your requirements.txt

In case when some of your modules failed to install you have to manually install them.