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Microservices #MichaelBui2812 1

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About Me ● Full-Stack Software Developer ● Working at PropertyGuru ● Experience: ○ Programming: 9 years ○ Microservices: 2 years ○ DevOps: < 1 year 3 http://about.me/MichaelBui

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5 Agenda ● Microservices ● Migration ● Scalability ● Resilience ● Deployment

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Microservices 6

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11 Migration

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Tools 12 ● Container: Docker, LXC ● Messaging: Redis, ZeroMQ, RabbitMQ,...

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1. Legacy App 13 Begin Log Begin Process Log End End

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1. Legacy App (cont.) 1. Linear codes 2. Become messy when more logics added =>unclean code 14

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2. Improved App by Events 15 Begin Event Log Begin Process Event Log End End

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2. Improved App by Events (cont.) 16

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2. Improved App by Events (cont.) 17

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3. Improved App by Microservices 18 Begin End Event Channel Message List Message List Watchers Watchers Workers Workers End

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3. Improved App by Microservices (cont.) 19

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3. Improved App by Microservices (cont.) 20

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Scalability 21

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22 1 watcher + 1 worker = 30s

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3 watchers + 3 workers = 14s 23 Broadcasting & Load Balancing

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24 Resilience

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25 Deployment

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26 Gitlab CI

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Question? 27 https://github.com/michaelbui/PHPSG-1701

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http://career.propertyguru.com/ 28

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Thank you! 29