Suddenly my powerdns admin installation stopped working, probably because of system upgrades - so I decided to fix it by upgrading to latest version of powerdns-admin. This is a guide for myself.
First some dependencies needs to be installed
sudo apt-get update sudo apt-get install pip sudo apt install python3.8-venv
Then we take a backup of the existing installation, so we have it for reference and to retain the old configuration in an easy way.
cd /opt/web #make sure you can clone new version sudo chmod a+xrw . mv powerdns-admin ./powerdns-admin-backup
Then we clone the latest version from github
git clone https://github.com/PowerDNS-Admin/PowerDNS-Admin.git ./powerdns-admin
And now starts the nitty gritty installation
First we create a python virtual environment so we do not fuck up existing pything installation.
python3 -mvenv ./flask
Then we activate the virtual environment, which tells pythong/pip that all changes needs to happen inside this virtual environment.
Now we install the required python packages.
python3 -m pip install --upgrade pip python3 -m pip install wheel python3 -m pip install -r requirements.txt
Copy the old configuration file to the new powerdns-admin installation directory.
cp /opt/web/powerdns-admin-backup/config.py /opt/web/powerdns-admin/config.py cp /opt/web/powerdns-admin-backup/config.py /opt/web/powerdns-admin/powerdnsadmin/default_config.py
When that is done we have to migrate the database if required.
export FLASK_APP=powerdnsadmin/__init__.py flask db upgrade
Then comes creating of all the yarn assets and building of flask files.
yarn install --pure-lockfile flask assets build
Then we have to make sure that the systemctl powerdns-admin service file is correct.
sudo nano /etc/systemd/system/powerdns-admin.service
If line ExecStart looks like this one:
ExecStart=/opt/web/powerdns-admin/flask/bin/gunicorn –workers 2 –bind unix:/opt/web/powerdns-admin/powerdns-admin.sock app:app
Then it needs to be changed to be like this:
ExecStart=/opt/web/powerdns-admin/flask/bin/gunicorn –workers 2 –bind unix:/opt/web/powerdns-admin/powerdns-admin.sock ‘powerdnsadmin:create_app()'
When that has been done, we need to tell systemctl to reload all files.
sudo systemctl daemon-reload
Then nginx needs to have its configuration files verified.
sudo nano /etc/nginx/conf.d/powerdns-admin.conf
In this file we need to make sure that the root directory points to the correct directory. Older versions of powerdns-admin used and /app directory - this is not the case now.
So look for a line that looks like: root /opt/web/powerdns-admin/app;
And change it to: root /opt/web/powerdns-admin/powerdnsadmin;
When all configuration changes has been done, then we just have to restart powerdns-admin and nginx.
sudo systemctl restart powerdns-admin sudo systemctl restart nginx
And hopefully everything works again.