Microservices with Docker

Microservices with Docker

• 2.
  Mircroservices Docker Architecture Internals Why Docker for Microservices Docker Orchestration
• 3.
  Microservices are anapproach to developing a single application as a suite of small, connected, services (Martin Fowler) Microservices are loosely coupled service orientated architecture with bounded contexts (Adrian Cockcroft) Microservices are small automonous services that work well together (Sam Newman)
• 4.
  Break big applicationdown into many small services http://martinfowler.com/microservices/
• 5.
  @crichardson Intimidates developers @cr Lo ts o f co o r d i n at i o n a n d co m m u n i cat i o n r equ i r ed Obstacle to scaling development I want to update the UI But the backend is not working yet! @crichardson Requires long-term commitment to a technology stack @ Overloads your IDE and container Sl o ws d o w n d ev el o pm en t
• 6.
   Componentization viaServices  Organized around Business Capabilities  Products not Projects  Smart endpoints and dumb pipes  Decentralized Governance  Decentralized Data Management  Infrastructure Automation  Design for failure  Evolutionary Design http://martinfowler.com/microservices/
• 7.
   Use differentstacks for different services  Replace or refactor individual services easily  Less coordination required when deploying  deploy more often  less risk  more agility and speed  Promotes many small teams instead of one big army  Enables effective ownership of services
• 8.
  http://microservices.io/patterns/microservices.html
• 9.
  Easily try othertechnologies ... an d f ai l saf el y
• 12.
  “Automates the deploymentof any application as a lightweight, portable, self-sufficient container that will run virtually anywhere”
• 13.
   Faster deliveryof your applications  Deploying and scaling more easily  Achieving higher density and running more workloads  Portable deployment across machines  Versioning  Component reuse  Shared libraries
• 15.
  Quick Demo….
• 17.
  Pull the imagefrom Docker Repository docker pull sequenceiq/spark:1.4.0 Building the image docker build --rm -t sequenceiq/spark:1.4.0 . Running the image docker run -it -p 8088:8088 -p 8042:8042 -h sandbox sequenceiq/spark:1.4.0 bash
• 18.
  FROM java:7 MAINTAINER nvn_ravi@hotmail.com COPY. /usr/src/myapp WORKDIR /usr/src/myapp RUN javac Main.java CMD ["java", "Main"]
• 21.
   ProvisionContainers  ManageContainerDependencies  Enable Discovery  Handle Container Failure  Scale Containers Amazon ECS
• 24.
   Describe astack of containers in a simple YAML file  Start the stack with a single command  Compose connects containers together with links  Also provides simple scaling and log aggregation
• 30.
  Master Minion pod pod labels labels kubeletcAdvisor proxy API Server Minion pod pod labels labels kubelet cAdvisor proxy scheduler replication controller kubectl distributed storage