Containerizing your apps
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This document discusses containerizing applications using Docker and Kubernetes. It introduces Docker as a lightweight containerization tool that allows for packaging, distribution, and execution of applications. Kubernetes is presented as an open-source orchestration system that can manage Docker containers across clusters and provides capabilities for scheduling, deployment, and maintenance of containerized applications at scale. The document outlines some of the benefits of Docker like portability, version control, and easy scaling, as well as challenges around security and limitations to Linux. It concludes with a question and answer section to discuss containerization strategies in more detail.
Containerizing your apps
- 3. • Buy a more powerful server. • Buy more powerful servers. “Computational Resources” Scale-Out Your Apps 3
- 4. • Centralized ? • High Latency ? • CPU Bound ? • I/O Bound ? • Cache or Database ? “Profiling Your Application” Is Your App Scalable ? 4
- 5. Design Principles ❖ Use Service Oriented Architecture ❖ Use Distributed Cache and Database ❖ Go Async ❖ Use Non-Blocking I/O ❖ Parallelize the Tasks ❖ Keep States in the Distributed Cache or Database ❖ Deployed Shared Services to Their Own Cluster 5
- 6. Why Docker ? ❖ Packaging ❖ Distribution ❖ Execution 6
- 7. More Challenges ? ❖ Availability ❖ Scalability ❖ Simplicity Docker Swarm 7
- 8. Docker
- 9. Docker ❖ Lightweight Container ❖ OS-level Virtualisation on Linux ❖ Stackable Images ❖ Layer Filesystems 9
- 12. Docker's Family ❖ Docker Engine ❖ Docker Registry (Hub) ❖ Docker Compose ❖ Docker Machine ❖ Docker Swarm 12
- 13. Pros ? • Rapid application delivering and deployment • Portability across machines • Version control and component reuse • Lightweight footprint and minimal overhead • Easy sharing • Easy scaling • Simplified maintenance 13
- 14. Cons ? ❖ Less secure ❖ Limited to Linux only ❖ Lack of container resilience ❖ Lack of container live migration (immature) 14
- 15. Kubernetes
- 16. to accelerate Dev and simplify OPs “Manage a cluster of containers as a single system” Kubernetes 16
- 17. Kubernetes An open-source orchestration system for Docker containers 17
- 19. Demo 19
- 20. Q&A 20