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 ### In this virtual lab we used mainly the following tools:
 
- * Docker swarm for service creation and container orchestration 
- * Linux Containers (LXC) for swarm worker nodes
- * Ansible for automatic deployment
- * Galera-inside-docker for MariaDB clustering
+ * [Docker swarm](https://docs.docker.com/engine/swarm/) for service creation and container orchestration 
+ * [Linux Containers (LXC)](https://linuxcontainers.org/) for swarm worker nodes instead of managing new VMs
+ * [Ansible](https://www.ansible.com/) for infrastructure deployment automation, provisioning and configuration management
+ * [Mariadb galera swarm image](https://hub.docker.com/r/colinmollenhour/mariadb-galera-swarm/) for MariaDB automatic clustering with healthchecks and other features
 
 As an operating system we used the same for all docker nodes (Host machine & LXC containers):
  * Debian 9.3 (Stretch) with Linux Kernel 4.9.0-5-amd64