Solved variable bug and updated README.md of docker

roles/docker/README.md

@@ -1,19 +1,23 @@
-# role docker
+# Docker Role 🚀
 
-## maintenance
+This role is part of the [CyMaIS Project](https://github.com/kevinveenbirkenbach/cymais), maintained and developed by [Kevin Veen-Birkenbach](https://www.veen.world/).
 
-### list unused volumes
-```bash 
-    docker volume ls -q -f "dangling=true"
+---
+
+## Maintenance 🛠️
+
+### List Unused Volumes
+```bash
+docker volume ls -q -f "dangling=true"
 ```
 
-### remove all unused volumes
-```bash 
-    docker volume rm $(docker volume ls -q -f "dangling=true")
+### Remove All Unused Volumes
+```bash
+docker volume rm $(docker volume ls -q -f "dangling=true")
 ```
 
-### network issues
-```bash 
+### Network Issues Fixes
+```bash
 docker stop $(docker ps -a -q)
 docker rm $(docker ps -a -q)
 docker network prune -f
@@ -21,9 +25,28 @@ sudo iptables -t nat -F DOCKER
 sudo iptables -t nat -F DOCKER-USER
 ```
 
+---
 
-## performance
-- https://forums.docker.com/t/mysql-slow-performance-in-docker/37179/21
+## Warning ⚠️
 
-## see
-- https://stackoverflow.com/questions/37599128/docker-how-do-you-disable-auto-restart-on-a-container
+**Caution:** The following instructions will delete **all Docker containers and volumes** on your server.  
+Make sure you have backups or that you're certain you want to clean your Docker environment completely.
+
+---
+
+## Cleaning Up Docker Containers and Volumes 🧹
+
+### Delete All Docker Containers
+```bash
+docker stop $(docker ps -a -q)
+docker rm $(docker ps -a -q)
+```
+
+### Delete All Docker Volumes
+```bash
+docker volume rm $(docker volume ls -q)
+```
+
+---
+
+Enjoy using this role and happy containerizing! 🎉