CloudFormation - User Data run as Ubuntu user - aws-cloudformation

Question

I have the following user data in my CFN template:
UserData:
'Fn::Base64':
!Sub |
#!/bin/bash
sudo apt-get update;
sudo apt-get upgrade -y;
sudo apt-get -y install python-pip;
sudo apt-get -y install gcc;
sudo apt-get -y install gcc-c++;
sudo apt-get install awscli -y;
sudo apt-get install python-mysqldb;
echo "$(pwd)" >> /home/ubuntu/current1.txt
cd /home/ubuntu/;
echo "$(pwd)" >> /home/ubuntu/current2.txt
pip install apache-airflow;
pip install celery==4.4.0;
pip install kombu==4.5.0;
echo "$(pwd)" >> /home/ubuntu/current3.txt
cd /home/ubuntu/airflow/;
echo "$(pwd)" >> /home/ubuntu/current4.txt
mv airflow.cfg airflow.cfg.original_1;
cd /home/ubuntu/;
nohup airflow initdb;
nohup airflow webserver -p 8080 >> webserver.log &;
nohup airflow scheduler >> scheduler.log &;
nohup airflow worker >> worker.log &;
If I do cd /home/ubuntu and then if install apache-airflow it is still getting installed under root.
I want to install the apache-airflow under /home/ubuntu.
How to install packages under /home/ubuntu user ?

Answer 1

I ran into a similar situation when automating the installation of Ghost on an Ubuntu instance. You can try switching users. I would have to test this when attempting to install a package using pip specifically. But here is an example of how I had to run some specific setup commands as a non-root user:
su ghost-user << 'EOF'
cd /ghost-app/ghost
ghost install --no-setup --no-stack --dbhost 10.16.11.80 --dbuser ghost --dbpass myterribledbasepassword --dbname ghost_prod
EOF