COG_py3_setup.md

Manual CoG Upgrade Instructions for Python3/Django2

Use these steps if you need to upgrade an existing ESGF installation that is running Python2 CoG. A key assumption is that CoG is already set up with the PostgreSQL database and settings file.

Install required libraries for CoG

yum install httpd-devel  sqlite-devel

Update cog repo

cd /usr/local/cog/cog_install
git fetch #
Git checkout python_3 

Create CoG conda env

source /usr/local/conda/etc/profile.d/conda.sh
conda create -y -n cog_py3 'python>=3.7,<3.9' pip

Activate Conda Env for COG.

Note you should have the environment activated for all subsequent commands

conda activate cog_py3

Install CoG Requirments

pip install 'mod_wsgi' 'git+https://github.com/edx-unsupported/django-openid-auth' -r requirements.txt

Install CoG into conda env

python setup.py --quiet install

Ensure old COG is stopped. move aside

cd /etc
cog-wsgi-8889/apachectl stop
mv cog-wsgi-8889 cog-wsgi-8889-old

Setup CoG mod_wsgi-express server

cd /usr/local/cog/cog_install
mod_wsgi-express setup-server apache/wsgi.py \
--server-root /etc/cog-wsgi-8889 \
--user apache --group apache \
--host localhost --port 8889 \
--url-alias /static /usr/local/cog/cog_install/static/

Set Ownership

chown -R apache:apache /usr/local/cog