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I'm a LEGO Man Living in a Duplo World

Delivered at IBM Think March 2018 aimed at Business people, not developers, to help understand the microservices environment.

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I'm a LEGO Man Living in a Duplo World

  1. 1. Duplo World Keith Brooks - CIO keith@crgolaw.com @lotusevangelist Conference Session 2858 1
  2. 2. Brooks? Fractional CIO Chief Whisperer Redbooks Thought Leader IBM Champion X6 2
  3. 3. https://www.cloudave.com/14675/the-evolution-of-it-towards-cloud-computing/ 3
  4. 4. Have you broken any of your Client/Server architecture down yet? Do your developers workflow charts look like a skyscraper blueprint? Do you rely on more “outside” applications than internal ones? World?LEGO 4
  5. 5. https://pmcdeadline2.files.wordpress.com/2017/02/the-big-bang-theory-lego.jpg?w=446&h=299&crop=1 https://www.finedininglovers.com/blog/out-of-the-blue/lego-foods/ http://www.geeksaresexy.net/2012/08/22/darth-vader-lego-needs- beer-pic/ Like it 5
  6. 6. • Not quite the same feeling or time required • One can not really test an API or a piece of code in the time it takes to eat a doughnut “..when it comes to the length of a Free Trial, many people want to believe there is a magic number – 7, 14, 15, 30, 45, 60, 90..” – Lincoln Murphy https://sixteenventures.com/ideal-free-trial-length 6
  7. 7. IBM Cloud Includes a Few Things 7
  8. 8. IBM Cloud (Bluemix) Includes a Few Things #2 8
  9. 9. IBM Cloud (Bluemix) Includes a Few Things #3 9
  10. 10. (Ok, 5 out of 7) Layers XX 10
  11. 11. • Still a server, but YOU don’t manage it • Not to be confused with headless servers • FaaS (Function as a Service) Server? vs. 11
  12. 12. • IBM Cloud Functions (based on Apache OpenWhisk) is a FaaS platform which executes functions in response to incoming events • It costs nothing when not in use. • The FaaS executes application logic but does not store data. Server? 12
  13. 13. App http://cloudswithcarl.com/blog/2016/07/08/start-with-serverless-computing-on-ibm-cloud-part-1/ 13
  14. 14. • Developers have freedom to independently develop and deploy services, make use of newer technologies, easy to modify • Can be developed by a fairly small team • Code for different services can be written in different languages • Easy integration and automatic deployment • Code is organized around business capabilities • Starts the web container more quickly, so deployment is faster • When change is required in a certain part of the application, only the related service needs to be modified and redeployed • If one microservice fails, the other will continue to work • Easier to scale and integrate with third-party services • No long-term commitment to technology stack 14
  15. 15. • Testing can be complicated and tedious with some many parts • Architecture brings developers issues like mitigating fault tolerance, network latency, load balancing, varied message formats • As it grows, integration and managing the application can become complicated • Developers have to plan for communication between the services • Situations may require communication and cooperation between different teams • The architecture usually results in increased memory consumption • Partitioning the application into microservices is very much an art at present 15
  16. 16. One server does everything, but is also the single point of failure When microservices are broken down, they all become a point of failure to the server. Have you coded for failover or secondary services for, not if, but when, the service dies/drops? Failure 16
  17. 17. High Level remember to think about: 1)Design for a collection of services 2)Separate the data 3)Communications between components 4)Design for performance and scaling 5)Security starts within the application 6)Monitor all the pieces 17
  18. 18. 18 AppDynamics I was impressed by their solution in the showcase
  19. 19. IBM Cloud https://www.ibm.com/cloud/solutions/ Sign up for an IBM Cloud Lite Account! https://ibm.biz/BdZqwA App Dynamics https://www.appdynamics.com/ Erin Mckean, IBM Developer Advocate https://github.com/emckean/serverless-for-managers-lab Links? 19LEGO Slides from www.SlideHunter.com used under
  20. 20. Keith Brooks - CIO CRGO Law keith@crgolaw.com @lotusevangelist 20