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CNCF Projects Overview

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CNCF Projects Overview

  1. 1. Cloud Native Computing Foundation Projects Neependra Khare, CloudYuga @neependra
  2. 2. About the Presenter • Founder and Principal Consultant at CloudYuga • Docker Captain • Author of “Introduction to Kubernetes” course on Edx • Author of Docker Cookbook • Co-author of “Introduction to Cloud Infrastructure Technologies” course on Edx • Self Paced online courses at school.cloudyuga.guru • Containers Fundamentals - Docker, runC & rkt, online self paced course (2017) • Containers (Docker) for Dev and QA , online self paced course (2017)
  3. 3. CNCF • A Linux Foundation Project • Aims to acceleration adoption of containers, microservices and cloud native application • CNCF hosts procjects like Containerd, Kubernetes but they work under their pre-existing governance structure. • New projects can be added
  4. 4. Container Runtime Containerd • Container runtime • Available as daemon on Linux and Windows • Uses runC to run containers • Manages complete life-cycle of containers • image transfer and storage • container execution and supervision • low level storage • network attachment • Exposes gRPC APIs over local Unix socket
  5. 5. Container Runtime Containerd
  6. 6. Container Runtime rkt • Container runtime • Available on Linux • Supports swappable execution engines • Can run Docker and OCI images • Currently it based on appc specification. Development is progress to fully support OCI images and runtimes.
  7. 7. Remote Procedure Call • High performance • Open source Universal RPC • With gRPC, we define a service • specifies methods that can be called remotely • uses Protocol Buffers as Interface Definition Language (IDL) • Protocol Buffers are a language and platform neutral mechanism to serialise structured data • Bi-directional streaming with integrated auth https://grpc.io
  8. 8. Container Networking Container Network Interface (CNI) Container Runtime Container Network Interface Loopback Plugin Bridge Plugin MACvlan Plugin IPvlan Plugin 3rd Party Plugins
  9. 9. Orchestration Kubernetes Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. • Kubernetes features • Automatic binpacking • Self-healing • Horizontal scaling • Service discovery and load balancing • Automated rollouts and rollbacks • Secrets and configuration management • Storage orchestration • Batch execution
  10. 10. DNS & Service Discovery CoreDNS • Provides DNS and Service Discovery • DNS functions are implemented as middlewares like • Kubernetes Service Discovery • Re-writing queries • loadbalance • … • CoreDNS chains middlewares, based on requirement • Can replace kube-dns in Kubernetes
  11. 11. Service Mesh Linkerd • Layer 5 Proxy • Work with HTTP, HTTP/2, gRPC (not raw TCP) • Provides • Service Discovery ( Kubernetes, Marathon, Swarm) • Intelligent Load Balancing • Retries (Improve success rate) • Circuit Breakers (Improve resilience) • Metrics and Tracing
  12. 12. Monitoring and Alerting Prometheus https://prometheus.io
  13. 13. Logging Fluentd • Unified Logging with JSON • Pluggable Architecture • Minimum Resources Required • Built-in Reliability https://www.fluentd.org/architecture
  14. 14. Tracing OpenTracing • Standard instrumentation APIs • Tracing tools, that uses OpenTracing • Zipkin • LightStep • Jaeger • Hawkular • ….
  15. 15. References • http://cncf.io • http://kubernetes.io/ • https://prometheus.io/ • http://opentracing.io/ • http://fluentd.org/ • https://www.linkerd.io/ • http://www.grpc.io/ • https://coredns.io/ • http://containerd.io/ • https://github.com/rkt/rkt • https://github.com/containernetworking
  16. 16. Thanks neependra@cloudyuga.guru https://www.linkedin.com/in/neependra/ @neependra

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