Garanti del Talento
A Deep Dive DevOps/SRE Academy
GDT is a group of experts with decades of field experience who have decided to enter the market with an Academy dedicated to DevOps & SRE topics in the context of Open Source and Cloud Native Platforms. We offer a growth path that is both complex and educational at the same time.
Introduction
/ What is Garanti Del Talento
The GDT Manifesto – The Hard Way, Deep Dive and and Full Stack Open-Source spirit
Conscious users of digital solutions serving the market—this is the goal we strive for with our students. We firmly believe that the first step in shaping new professionals is to instill in them a deep understanding of how products and platforms work at their core.
We have deliberately excluded LLMs (ChatGPT, Gemini, etc.), Cloud Providers (Azure, AWS, GCP, etc.), and any kind of graphical interface from our curriculum. We want our academy to be complex, raw, and low-level—but more formative than ever.
About Us
/ Who We Are
A brief description of us. Both as a company and as a community of experts.
We have known each other for many years now and have come to the conclusion that we should combine our skills and energy to create something tangible and truly our own. Garante Del Talento is an initiative born from our desire to fully leverage our expertise in the market by training young talents in a highly technical and specialized environment.
We started out as System Engineers many years ago, primarily working with operating systems based on the Linux Kernel. Over time, we have written code both professionally and for passion, supported our clients through complex challenges, contributed to open-source projects, and even created our own.
With GDT, our goal is to foster excellence in training new professionals in the fields of DevOps, Ops, and SRE.
Open Source
/ #1
Topics and Labs {dgt_oss01}
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Open Source Philosophy
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People who have made history
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The main software licenses
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Communities
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Contributions
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Some relevant projects
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Books and documentaries
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Open Source projects assignement
Networking
/ #2
Topics and Labs {dgt_net02}
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OSI and TCP Reference Model
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The Physical Layer
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The Data Link Layer
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The Transport Layer
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The Application Layer
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Network Security
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Packet Sniffing
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Write TCP e UDP packets with C
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Write Server / Client programs in C
Linux Shell
/ #3
Topics and Labs {dgt_bash03}
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Story of the Bash shell
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Invoking Shell and VIM
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Command exit status
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Syntax
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Functions
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Variables
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Arithmetic expressions
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Command History
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Autocompletion and shell customization
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Job Control
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Shell Options
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Command Execution
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File and data manipulation
Linux
/ #4
Topics and Labs {dgt_sys04}
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The Story of Linux
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GNU/Linux distributions
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Debian GNU/Linux
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Rocky Linux
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Permissions
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Package (RPM & DEB)
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Networking
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Processes and services
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Memory and resources
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Disks and filesystems
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Logs management and visualization
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Security
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Scripting and automation
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Monitoring
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Backup and restore
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NFS and Samba
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Apache Web Server
LFS
/ #5
Topics and Labs {dgt_lfs05}
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LFS Intro
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Lab preparation
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Linux From Scratch Setup
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Linux From Scratch Build
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Observe DGT Linux Distribution
DevOps
/ #6
Topics and Labs {dgt_devops06}
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The DevOps Culture
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GIT and Gitlab
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HaProxy and Nginx
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Jenkins and Rundeck
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Artifact Repos – Nexus
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Ansible Introduction
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Ansible Ad Hoc Commands
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Ansible Vars, Loops and Templating
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Ansible Playbooks, Roles and Modules
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OpenTofu (Terraform fork)
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Code Quality – Sonarqube
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DevSecOps Introduction
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OpenBao (Vault fork)
Containers
/ #7
Topics and Labs {dgt_k8s07}
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Containers intro
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Container Engines and Runtimes
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Kubernetes introduction
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Helm, Kustomize and CI/CD
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K8S Networking
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K8S Storage
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K8S Security
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K8S Tuning
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K8S Monitoring
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Chaos Engineering on Kubernetes
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Enterprise Distributions
SRE
/ #8
Topics and Labs {dgt_sre08}
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SRE Introduction
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Incident Management
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Service Level Agreements
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Error Budget / Metrics & Monitoring
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High Availabilty
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Distributed systems and consensus protocols
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Chaos Engineering and observability
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Scaling infrastructures
Work Setup
/ #9
Topics and Labs {dgt_wrk09}
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Work in the enterprise context
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What it means to work on IT operations
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On-call availability
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The Accolli (Easter Egg)
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Task Management
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Team Working
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Blogging and community
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Orientation to work
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Collaboration with GDT
Training Assets
/ The Hard Way.
The infrastructure serving our students
Hypervisor & K8s Namespace
We provide our students with the virtual machines needed for studying and practicing in various courses, as well as dedicated namespaces on GDT’s Kubernetes cluster. We use Proxmox as the hypervisor and Rocky Linux and Debian virtual machines.
Team collaboration
Communication with instructors and fellow students takes place exclusively via IRC or through the Garanti del Talento email account provided during registration. The use of LLMs to facilitate the completion of exercises is not allowed unless they are the LLMs provided by GDT
HLD Training Infrastructure
/ Bare Metal & Tailor Made
