Viktor Farcic's The DevOps 2.0 Toolkit eBook for Free

Get to grips with the fundamentals of Devops
Architect efficient software in a better and more efficient way with the help of microservices
Use Docker, Kubernetes, Ansible, Ubuntu, Docker Swarm and more
Implement fast, reliable and continuous deployments with zero-downtime and ability to roll-back
Learn about centralized logging and monitoring of your cluster
Design self-healing systems capable of recovery from both hardware and software failures