remove unused ansible group variables

update docker swarm documentation

docker_swarm/README.md

@@ -26,3 +26,7 @@ On top of the Docker Swarm, we host several services deployed as Docker Stacks:
 - [CyberChef](https://github.com/gchq/CyberChef)
 - [HedgeDoc](https://hedgedoc.org/)
 - [Swarm Dashboard](https://github.com/mohsenasm/swarm-dashboard)
+
+## Secret decryption
+
+The Ansible playbooks assume you have the password to Ansible vault present at `~/.config/home/ansible-vault-secret`.

docker_swarm/inventory/group_vars/all.yml

@@ -1,8 +1,4 @@
-data_directory_base: /mnt/data
 git_ssh_port: 56287
-elasticsearch_port: 14653
-fluent_forward_port: 24224
-concourse_public_key: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBSVLcr617iJt+hqLFSsOQy1JeueLIAj1eRfuI+KeZAu pim@x260"
 
 database_passwords:
   nextcloud: !vault |