If you missed a meeting of DevOps-engineers "Orcs here" in Yandex.Money, but are interested in the issues of containerization and orchestration - we recorded all four reports.

Specialists from Yandex, Alpha Laboratories, Zvooq and Badoo companies talk about experience with orchestration systems and difficult moments.

# 1 Paradigms of Orchestration Systems

Danila Dyugurov examines the architecture of the orchestration systems, their principle of operation and scenarios for the calculation of changes in services. In addition, he focuses on the tools of operation and the preparation of services for life in containers.

As an example - the internal cloud of Yandex on tens of thousands of servers. They run in containers, created its own orchestration system.

# 2 Why we chose Docker

Anton Turetsky from Badoo explains why they chose containerization.

In the report - both about ready-made solutions, and about unexpectedly found advantages of the system.

# 3 Docker Swarm mode - resilient deploy

From the report of Rinat Habibiev , the developer of Zvooq, you will learn how to roll out the update to all working and temporarily not working nodes without pain and failure.

What is important - with the verification that everything went as it should.

# 4 Mesos framework from scratch

Viet Nguyen from Alpha Laboratories calls not to be shy to write your own Mesos frameworks, shows how they can be assembled from curl and other improvised means, and answers burning questions: who is a Mesos agent, why are schedulers and executors needed, and here uncle with a shovel.

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And, as always, if you want to clarify sore or incomprehensible - write in the comments.