wallabag should work now.

wallabag/README.md

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+Here is what I posted to github issues:
+
+https://github.com/wallabag/docker/issues/153
+
+In the hopes of saving someone else time, the Ansible script that runs is located here:
+entrypoint.yml
+
+for some reason when Ansible tries to connect to the db host, mariadb closes the connetion:
+[Warning] Aborted connection 8 to db: 'unconnected' user: 'unauthenticated' host: '192.168.0.4' (This connection closed normally without authentication)
+
+even though when you connect to the container:
+docker exec -it dcebf5dcbda1 sh
+
+you can connect to the database just fine:
+mysql -h $SYMFONY__ENV__DATABASE_HOST -u root -p$MYSQL_ROOT_PASSWORD
+
+But if I manually run the playbook:
+ansible-playbook -i /etc/ansible/hosts /etc/ansible/entrypoint.yml -c local "$@"
+
+I get the warning:
+[WARNING]: Found both group and host with same name: localhost
+
+But the playbook successfully completes.
+
+If it doesn't (or if you have defined the mariadb user and database name in your compose file) you can try the POPULATE_DATABASE=false and then run php bin/console wallabag:install --env=prod -n from the /var/www/wallabag directory.
+
+I think (untested) if you ran ansible-playbook -i ${HOSTNAME}, /etc/ansible/entrypoint.yml -c local "$@" instead of using an inventory and there was a check for if {{ database_name }} exists - name: add mariadb db in the playbook, it might work a little better. But I'm not sure how to stop mariadb from closing the connection.
+
+hope this helps.