docker containers orchestration
TRANSCRIPT
4/4/2015 Docker Containers Orchestration
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Docker Containers OrchestrationDmitry Fedorov
4/4/2015 Docker Containers Orchestration
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Itroduction
Dmitry Fedorov
Wargaming.net web DevOps
Deploying, maintaining, breaking things
4/4/2015 Docker Containers Orchestration
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Orchestration?
Classification: - Something that works from files - Something with API - PaaS
Naaaah!
Classification: *(retry) - Composition: docker-compose (a.k.a fig), Maestro-ng... - Scheduling: Mesos, Kubernetes... - PaaS: Flyyn, Deis... - Configuration Management System: Ansible, Puppet, Chef ... + Foreman
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Composition
Combine simple objects into more complex ones
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Docker Compose
Structure description:
json ( Oh, please, no! )
yaml ( Good try, but no )
what else ... CMDB?
Complaints:
Complex dependencies do not work.
Please, stop being just wrappers around docker cli!
Please, stop trying to be configuration management!
Summary:
Works for cosy developers environment: Single Host Only (Do not tell me about docker-swarm)
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Schedulers
Distribution makes things harder
A bit of history:
Monolithic
Resource offer concept
Google Omega: optimistic offers
Mesos: Pretty good
Kubernetes: Work in progres
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PaaS
Questions:
Network (no working decision)
Storages (if network was not enougth for you)
Backups
Metrics
Logging
Quote: Stack - is a new term for "I don't know how this thing works"
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Orchestration
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Mesos
Apache Mesos abstracts CPU, memory, storage, and other compute resources awayfrom machines (physical or virtual), enabling fault-tolerant and elastic distributedsystems to easily be built and run effectively.
Fault Tolerant
Scalable
High Utilisation
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Architecture
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Offer
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Marathon does it!
Start, stop, scale, update, view apps
Placement constraits
Health checks
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Questions?
All above is a personal author oppinion and not an official Wargaming.net position... and also could be an absolute crap.