* Update PDNS recursor version in Fedora image
* Update PDNS version in alpine image
* Update Dockerfile
* Update Dockerfile
* Update mariadb image version in kubernetes example
* Update admin images in k8s example
* Update ansible-playbook.yml
* Fix PDNS version in k8s example
* Update docker-compose.yml
* Update README.md
* Update docker-image.yml
* Update docker-image-pr.yml
Before, the uwsgi was running in Emperor mode, supporting to run multiple
different apps. However, after the upgrade to Fedora 31, Emperor mode started
to take very long time to start, causing other issues. Since we are running
only one app anyway - this commit simplifies the uwsgi config by switching the
run mode only to single app.