calm@calmict:~$ cat manuals/README.md

The handbooks

Each of these handbooks is a deep-dive plan to get behind a technology: not how to use it, but why it works.

calm@calmict:~$ man method

When I study a complex subject, the first thing I look for is a simple explanation. If I can build a clear mental image, the rest follows on its own.

— the method, in two steps
calm@calmict — man method
— the same concept, through two lenses · browse the examples
from the image to the mechanism
The containerdocker
to a child

and in practice↓
to an engineer

calm@calmict:~$ ls manuals/
Linux Handbook The engine under the hood CALMICT.COM Linux
Handbook From powering on the machine to the kernel internals Cristian Andrea La Monica KERNEL · PROCESSES · MEMORY · FILESYSTEM · PERMISSIONS · NAMESPACES
The Docker Handbook The engineer of universal packaging CALMICT.COM The Docker
Handbook From the Linux process to the package that runs anywhere Cristian Andrea La Monica NAMESPACES · CGROUPS · IMAGES · VOLUMES · NETWORKING · COMPOSE
The Kubernetes Handbook The helmsman of the digital fleet CALMICT.COM The Kubernetes
Handbook From a single container to the helm of a thousand machines Cristian Andrea La Monica KERNEL · POD · CONTROL PLANE · NETWORKING · STORAGE · SECURITY
The Ansible Handbook The orchestra conductor of the infrastructure CALMICT.COM The Ansible
Handbook From your first playbook to governing entire datacenters Cristian Andrea La Monica YAML · PLAYBOOK · ROLES · VAULT · CI/CD · AWX
The Terraform Handbook The architect who designs digital cities CALMICT.COM The Terraform
& OpenTofu
Handbook From your first resource block to enterprise architectures Cristian Andrea La Monica IMMUTABILITY · DECLARATIVE · GRAPHS · STATE · MODULES · GITOPS

Hover the spines · click to open a volume and turn its pages from the corners

# Most manuals explain what to do, but almost none explain why it works. This collection was born from that realization.

Understand, not just use.

If these pages help you see a technology with different eyes, turning a set of commands into genuine understanding, then they will have achieved their purpose.

The exercises are on GitHub

Every chapter has a tested lab, with starter files and a solution. Public repository, MIT license.

github.com/calmict/book_labs ↗

click outside the book to put it back