容器革命的「利」與「必」
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This document discusses containers and microservices. It begins by comparing VMs to containers, noting that containers provide operating-system-level virtualization while VMs require a whole operating system. It then discusses how modern applications are decomposed into independent microservices that can be developed, tested and deployed independently. Containers allow each microservice to run isolated in its own container. The document concludes that containers may ultimately replace VMs for many workloads, as containers provide the necessary isolation and packaging for microservices without the overhead of full virtual machines.
容器革命的「利」與「必」
- 1. 容器革命的「利」與「必」 Alfie Chen 2017/10/23 alfie.c@inwinstack.com alfieYFC inwinSTACK alfie.yfc inwinSTACK
- 2. Agenda World of Microservices VM vs Container Conclusions
- 3. World of Microservices VM is to Container what Human is to Robot?
- 4. App Development Changes • Huge Applications • Hours to Build • Huge Downtime • Microservices • Cloud Computing • Independent Deployments • Fast Version Releases
- 5. Microservices Kitchen Office Men’s Room Women’s Room Frontdesk Dining Area entrance
- 6. Microservices Kitchen Office Men’s Room Women’s Room Frontdesk Dining Area entrance
- 7. Nginx (Reverse Proxy Service) Bootstrap (Front-end Framework) Rails (Web Framework) Sidekiq (Background Processing Framework) Redis (Storage) Postgresql (Database) Elastic (DB Search Engine) Microservices
- 8. Microservices Physical Server VM VM VM VM Hypervisor Physical Server Software Program 010101010101010 101010101010101 010101010101010 101010101010101 010101010101010 010101010101010 101010101010101 010101010101010 101010101010101 010101010101010 010101010101010 101010101010101 010101010101010 101010101010101 010101010101010 010101010101010 101010101010101 010101010101010 101010101010101 010101010101010
- 10. Microservices Kitchen Office Men’s Room Women’s Room Frontdesk Dining Area entrance
- 11. Microservices Physical Server Software Program Physical Server VM VM VM VM Hypervisor Physical Server Container Container Container Container Container Engine (Docker)
- 12. VM vs Container Fridge vs Canned Food? Ask the Right Question! How to Preserve My Food? What env Does My App Need?
- 13. The KEY Concept
- 14. • MS Package Software • GUI Application • Requires Windows Server Example 1 – MSSQL VM
- 15. • Simple Scripts • Python Installed • PIP Installed • DOESN’T Require Specific OS • CMD python app.py Example 2 – app.py app.py
- 17. if(require OS configurations){ App runs on a VM } else { App runs as Container } Conclusions
- 18. • Where does the company stand? • Dev, Ops, DevOps? • Testing Environments? • Containers on VMs? Typical Things to Think about… Containers Might Ultimately Replace VMs (Cans Might Ultimately Replace Fridges)
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