Моя тема - «Ансамбль солёных поваров: сравниваем Ansible, SaltStack и Chef» Я буду сравнивать три ведущие, по моему мнению, SCM-системы: Chef, Ansible и SaltStack. Доклад будет приправлен практикой и примерами из жизни, как хорошими так и плохими.

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Ансамбль солёных поваров:
сравниваем Ansible, SaltStack и
ChefSCM in a nutshell with some practice toppings
May, 2017

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Andriy Filatov
 Automation addict
 CI/CD junkie
 DevOps evangelist
Andriy Filatov
EPAM Systems, Lead System Engineer

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Andriy Filatov
Andriy Filatov
EPAM Systems, Lead System Engineer

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• Intro
• SCM in a nutshell
• Ansible
• Chef
• Salt-Stack
• A piece of Practice
• Salt-Stack
• Chef
• Ansible
• Outro
Agenda

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SCM IN A NUTSHELL

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SCM in a Nutshell
State X State Y

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SCM in a Nutshell

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• Repeatedness and consistency
• Extends CI/CD Process
• Version controlled
• Easy to support and evolve
• Full automation
SCM in a Nutshell

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SIMPLE. POWERFUL. AGENTLESS.
App deployment, configuration management and orchestration - all
from one system. Ansible is powerful IT automation that you can
learn quickly.
• Agentless architecture
• Written on Python
• Yaml-like DSL
• Easily extensible
• Very simple and lightweight
SCM in a Nutshell
Ansible

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SCM in a Nutshell: Ansible

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THINK IT TO SHIP IT.
The Chef server is the highly scalable foundation of the Chef
automation platform. Create a flexible, dynamic infrastructure
across multiple datacenters, public and private clouds, and in
heterogeneous environments.
• Client-Server Architecture
• Search-base Configuration
• Written on Ruby
• Ruby DSL
• Giant community and tools
SCM in a Nutshell
Chef

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SCM in a Nutshell: Chef

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SPEED + SCALE + FLEXIBILITY + EFFICIENCY
Automation for enterprise IT ops, event-driven data center
orchestration and the most flexible configuration management
for DevOps at scale.
• Agent or agentless architecture
• Real-time automation
• Parallel remote execution
• Written on Python
• Yaml-like DSL
SCM in a Nutshell
Salt-Stack

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SCM in a Nutshell: SaltStack

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A PIECE OF PRACTICE

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A piece of Practice

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• MultiMaster Performance Issues
• Runners vs Modules
• Cache mine
A piece of Practice: SaltStack
SaltStack in real life

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A piece of Practice: SaltStack

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• MultiMaster Performance Issues
• Runners vs Modules
• Cache mine
• Race condition & Orchestrate
A piece of Practice: SaltStack
SaltStack in real life

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A piece of Practice: SaltStack
https://github.com/saltstack/salt/issues/18564

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A piece of Practice: SaltStack
SaltStack
Maturity
Simplicity
Customizability
Tooling
Community
⭐️⭐️⭐️
⭐️⭐️
⭐️⭐️⭐️⭐️⭐️
⭐️⭐️
⭐️⭐️⭐️

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• Search is slow
A piece of Practice: Chef
Chef in real life

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A piece of Practice: Chef

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A piece of Practice: Chef
• Use proper naming convention
• Run search once for all nodes and users
• Use ruby to filter results when they needed

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• Search is slow
• node.save is not save to use!
• No splay can kill your chef-server
A piece of Practice: Chef
Chef in real life

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A piece of Practice: Chef
Chef
Maturity
Simplicity
Customizability
Tooling
Community
⭐️⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️⭐️

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• Use ‘accelerate’ and ‘pipelining’
• Optimize your runs using ‘with_items’
• Use ‘local_action’ and ‘delegated’ wisely
• Optimize your roles and runs with tags
A piece of Practice: Ansible
Ansible in real life

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Conclusions
Ansible
Maturity
Simplicity
Customizability
Tooling
Community
⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️⭐️
⭐️⭐️⭐️⭐️
⭐️⭐️⭐️
⭐️⭐️⭐️⭐️

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CONCLUSIONS

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Conclusions
Salt-Stack Chef Ansible
Maturity ⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️
Simplicity ⭐️⭐️ ⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️
Customizability ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️
Tooling ⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️
Community ⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️

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Conclusions

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CONTACT ME
andriy_filatov@epam.com
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