Run migrations on post-receive

The post-receive hook trick checkouts the latest code. It saves us from manually copying files over FTP.

We still need to do various things to see the latest code changes:

run migrations
run collectstatic
restart gunicorn server
any other step if needed

These additional steps keep changing over the life of the code.

A good way to automate these too is to add a bash script for these jobs.

We can change our post-receive hook to run this script after checking out the new code.

I use something like this in the post-receive hook.

#!/bin/bash

PROJECT=/home/ubuntu/{project}
BRANCH=master

echo "Project is $PROJECT with branch $BRANCH"

# exit if anything fails
set -e

echo "Checking out new code"
mkdir -p $PROJECT
git --work-tree=$PROJECT checkout $BRANCH -f

echo "Running post-receive"
cd $PROJECT
bash deploy.sh

Then you can create deploy.sh to run makemigrations and other commands. This deploy.sh can now be the part of your source code.

A sample deploy.sh can be something like:

#!/bin/bash

# On git push, this script will run automatically on server

set -e  # exit if anything fails

echo "Collecting Static files"
python manage.py collectstatic --noinput --settings=project.settings.production

echo "Running migrations"
$RUN python manage.py migrate --settings=project.settings.production

# Add other commands as needed