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The Business Behind MICRoservices:
OrganisationAL, architectural and Operational Challenges
	
  
Daniel	
  Bryant	
  
@dan...
Tonight	
  –	
  Microservices…	
  
•  …	
  not	
  for	
  every	
  organisa7on/project?	
  
•  …macro	
  organisa7onal	
  a...
Who	
  Am	
  I?	
  
•  London	
  Java	
  Community	
  Associate	
  
•  Adopt	
  OpenJDK	
  and	
  JSR	
  
•  InfoQ	
  Edit...
Disclaimer
Any resemblance to existing projects
(whether overrunning or over-budget)
is purely Coincidental...
03/06/15	
 ...
1. Divided companies vs connected companies…
03/06/15	
   @danielbryantuk	
  
Gray’s	
  Model	
  of	
  Companies	
  
•  Divided	
  Companies	
  
–  Tradi7onal	
  ‘enterprise’	
  (machine	
  analogy)	
...
Connected	
  Companies	
  
•  Startups	
  
– Searching	
  for	
  a	
  business	
  model	
  
•  Established	
  companies	
 ...
 
	
  
So,	
  are	
  microservices	
  always	
  the	
  best	
  fit?	
  
03/06/15	
   @danielbryantuk	
  
No…	
  Microservices	
  for	
  Speed(?)	
  
skillsmaGer.com/skillscasts/6143-­‐microservices-­‐for-­‐speed	
  	
  
HOT	
  ...
No…	
  Architectural/Design	
  Skills	
  
“If	
  you	
  can't	
  build	
  a	
  [well-­‐structured]	
  monolith,	
  	
  
wh...
No…	
  Opera7onal	
  Maturity	
  
03/06/15	
   @danielbryantuk	
  
 
	
  
So,	
  what	
  does	
  a	
  	
  
connected	
  company	
  /	
  microservice	
  organisa7on	
  
look	
  like?	
  
03/...
2. Conway was telling the truth... Deal with it!
03/06/15	
   @danielbryantuk	
  
How	
  Do	
  CommiGees	
  Invent?	
  
	
  
	
  
“organizaCons	
  which	
  design	
  systems	
  ...	
  	
  
are	
  constrai...
Stereotypical	
  Silos...	
  
Dev	
   QA	
   Ops	
  
Hand-­‐off	
  delays	
  Hand-­‐off	
  delays	
  
Slow	
  feedback	
   S...
03/06/15	
   @danielbryantuk	
  
Cross-­‐func7onal	
  Teams	
  
•  Spo7fy	
  (bit.ly/1C46ZKo)	
  
– Culture	
  
•  Amazon	
  (bit.ly/1F3Dgkm)	
  
– Communi...
Spo7fy	
  
03/06/15	
   @danielbryantuk	
  
Killer	
  Performance	
  Indicators	
  
•  Shared	
  goal	
  semng	
  is	
  key!	
  
•  KPIs,	
  OKR,	
  CSF…	
  WAT??	
  ...
3. All Technology problems are people problems
03/06/15	
   @danielbryantuk	
  
‘Architecture’	
  –	
  Not	
  a	
  dirty	
  word	
  
•  Technical	
  leadership	
  (bit.ly/1EUwpLl)	
  
•  Communica7on	
 ...
Microservices…	
  Macro	
  Team	
  Dynamics	
  
•  Microservice	
  Prerequisites	
  (bit.ly/1wIjY58)	
  	
  
– Rapid	
  pr...
Share	
  the	
  Pain…	
  
03/06/15	
   @danielbryantuk	
  
“Dev-­‐on-­‐call”	
  
An	
  occasional	
  spike	
  to	
  the	
  
head	
  is	
  a	
  good	
  thing…	
  
	
  
…metaphoricall...
Microservices…	
  New	
  Technology?	
  
	
  
“I	
  will	
  postpone	
  using	
  this	
  shiny	
  new	
  framework	
  
un6...
Raible’s	
  Comparison	
  Matrix	
  
MaG	
  Raible	
  comparison	
  matrix	
  (bit.ly/OxUzad)	
  
03/06/15	
   @danielbrya...
 
So,	
  we’ve	
  looked	
  at	
  the	
  business,	
  organisa7onal	
  
structure,	
  and	
  people	
  aspects….	
  
	
  
...
4. Change management without Management double-speak
03/06/15	
   @danielbryantuk	
  
Change	
  Management	
  is	
  Essen7al	
  
•  Fair	
  process	
  
– Engagement	
  
– Explana7on	
  
– Expecta7on	
  
•  Le...
A	
  Look	
  into	
  My	
  Toolbox	
  
•  (Over-­‐)communicate	
  vision	
  
–  Engage,	
  explain,	
  expecta7ons	
  (7me...
A	
  Look	
  into	
  My	
  Toolbox	
  
03/06/15	
   @danielbryantuk	
  
A	
  Look	
  into	
  My	
  Toolbox	
  
•  MoSCoW	
  
•  RASCI	
  
–  Responsible	
  
–  Accountable	
  
–  Support	
  
–  ...
Some	
  common	
  themes…	
  
03/06/15	
   @danielbryantuk	
  
Leadership	
  –	
  Oten	
  Undervalued	
  
“Management	
  is	
  doing	
  things	
  right;	
  	
  
leadership	
  is	
  doin...
Behavioural	
  Economics	
  
Psychological,	
  social,	
  cogniCve	
  and	
  emoConal	
  
factors	
  that	
  affect	
  econ...
 
	
  
In	
  summary…	
  	
  
03/06/15	
   @danielbryantuk	
  
The	
  Business	
  Behind	
  Microservices	
  	
  
•  Check	
  your	
  organisa7on	
  can	
  benefit	
  from	
  
using	
  m...
THANKS...
	
  
@danielbryantuk	
  
daniel.bryant@container-­‐solu7ons.com	
  
	
  
	
  
@OpenCredo	
  /	
  @containersolu7...
My	
  Other	
  Resources	
  
•  My	
  ar7cles:	
  
–  hGps://www.voxxed.com/blog/2015/01/understanding-­‐the-­‐business-­‐...
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LMSUG 2015 "The Business Behind Microservices: Organisational, Architectural and Operational Challenges"

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The technology changes required when implementing a microservice-based application are only one part of the equation. The business and organisation will also most likely have to fundamentally change. In an ideal world, this shouldn’t be a problem - what with the rise of agile, lean and DevOps - but this is not always the situation I encounter in my consulting travels. I would like to share some stories of successful (and not so successful) strategies and tactics I have used over the past four years when introducing service-oriented architecture into organisations.

Join me for a whistle-stop tour of the business and people challenges that I have experienced first hand when implementing a greenfield microservice project, and also breaking down a monolith. We’ll look at ‘divided companies’ vs ‘connected companies’, determine the actual impact of conway's law, briefly touch on the lean startup/enterprise mindset, dive into change management without the management double-speak, and look at the lightweight processes needed to ensure the technical success of a microservices implementation.

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LMSUG 2015 "The Business Behind Microservices: Organisational, Architectural and Operational Challenges"

  1. 1. The Business Behind MICRoservices: OrganisationAL, architectural and Operational Challenges   Daniel  Bryant   @danielbryantuk     OpenCredo  /  Container  Solu7ons  London  
  2. 2. Tonight  –  Microservices…   •  …  not  for  every  organisa7on/project?   •  …macro  organisa7onal  and  people  impact   •  Collaborate  more  (and  beGer)   •  Apply  lightweight  process  to  drive  change   03/06/15   @danielbryantuk  
  3. 3. Who  Am  I?   •  London  Java  Community  Associate   •  Adopt  OpenJDK  and  JSR   •  InfoQ  Editor  and  DZone  MVB   03/06/15   @danielbryantuk   •  OpenCredo  /  Container  Solu7ons   ü  Agile,  CI/CD,  DevOps     ü  Microservices  and  cloud   ü  Docker,  Mesos  and  Kubernetes  
  4. 4. Disclaimer Any resemblance to existing projects (whether overrunning or over-budget) is purely Coincidental... 03/06/15   @danielbryantuk  
  5. 5. 1. Divided companies vs connected companies… 03/06/15   @danielbryantuk  
  6. 6. Gray’s  Model  of  Companies   •  Divided  Companies   –  Tradi7onal  ‘enterprise’  (machine  analogy)   –  Command  and  control,  specialised,  division  of  labour   –  Predictable  in  stable  environments   –  Classical  SOA?   •  Connected  Companies   –  Hipsters  and  unicorns  (biological  analogy)   –  Autonomous,  fractal,  service-­‐focused   –  Adap7ve  in  uncertain  environments   –  Microservices?   03/06/15   @danielbryantuk  
  7. 7. Connected  Companies   •  Startups   – Searching  for  a  business  model   •  Established  companies   – Amazon   – Spo7fy   – Neblix   – Etsy   03/06/15   @danielbryantuk  
  8. 8.     So,  are  microservices  always  the  best  fit?   03/06/15   @danielbryantuk  
  9. 9. No…  Microservices  for  Speed(?)   skillsmaGer.com/skillscasts/6143-­‐microservices-­‐for-­‐speed     HOT  OFF  THE  PRESS!!   mar7nfowler.com/bliki/ MonolithFirst.html     03/06/15   @danielbryantuk  
  10. 10. No…  Architectural/Design  Skills   “If  you  can't  build  a  [well-­‐structured]  monolith,     what  makes  you  think  microservices  are  the  answer?”     Simon  Brown   (bit.ly/1n7D0vp)   03/06/15   @danielbryantuk  
  11. 11. No…  Opera7onal  Maturity   03/06/15   @danielbryantuk  
  12. 12.     So,  what  does  a     connected  company  /  microservice  organisa7on   look  like?   03/06/15   @danielbryantuk  
  13. 13. 2. Conway was telling the truth... Deal with it! 03/06/15   @danielbryantuk  
  14. 14. How  Do  CommiGees  Invent?       “organizaCons  which  design  systems  ...     are  constrained  to  produce  designs  which  are  copies  of   the  communicaCon  structures  of  these  organizaCons”     -­‐  Melvin  Conway,  1968   03/06/15   @danielbryantuk  
  15. 15. Stereotypical  Silos...   Dev   QA   Ops   Hand-­‐off  delays  Hand-­‐off  delays   Slow  feedback   Slow  feedback   Lack  of  cohesion,  shared  understanding  and  joint  accountability   Front-­‐end   Database   Middleware   03/06/15   @danielbryantuk  
  16. 16. 03/06/15   @danielbryantuk  
  17. 17. Cross-­‐func7onal  Teams   •  Spo7fy  (bit.ly/1C46ZKo)   – Culture   •  Amazon  (bit.ly/1F3Dgkm)   – Communica7on   •  Gilt  (gi.lt/1rgyWvO)   – Strategic  alignment   03/06/15   @danielbryantuk  
  18. 18. Spo7fy   03/06/15   @danielbryantuk  
  19. 19. Killer  Performance  Indicators   •  Shared  goal  semng  is  key!   •  KPIs,  OKR,  CSF…  WAT??   •  Build,  measure,  learn   – Plan,  do,  check,  act   – Observe,  orient,  decide,  act   – The  scien7fic  method…   03/06/15   @danielbryantuk  
  20. 20. 3. All Technology problems are people problems 03/06/15   @danielbryantuk  
  21. 21. ‘Architecture’  –  Not  a  dirty  word   •  Technical  leadership  (bit.ly/1EUwpLl)   •  Communica7on  (bit.ly/1Ia3u8o)       •  Promote  shared  understanding   •  ‘Just  enough’  up  front  design   03/06/15   @danielbryantuk  
  22. 22. Microservices…  Macro  Team  Dynamics   •  Microservice  Prerequisites  (bit.ly/1wIjY58)     – Rapid  provisioning   – Basic  monitoring   – Rapid  applica7on  deployment   •  In  a  nutshell…   – Agile   – DevOps   – CI/CD     03/06/15   @danielbryantuk  
  23. 23. Share  the  Pain…   03/06/15   @danielbryantuk  
  24. 24. “Dev-­‐on-­‐call”   An  occasional  spike  to  the   head  is  a  good  thing…     …metaphorically  speaking   •  You  write  it,  you  run  it   –  Accountability   –  Shared  responsibility   –  Communica7on   03/06/15   @danielbryantuk  
  25. 25. Microservices…  New  Technology?     “I  will  postpone  using  this  shiny  new  framework   un6l  my  peers  have  validated  the  proposed   benefits  with  rigorous  scien6fic  experiments”      -­‐  Said  by  no  programmer    …ever   03/06/15   @danielbryantuk  
  26. 26. Raible’s  Comparison  Matrix   MaG  Raible  comparison  matrix  (bit.ly/OxUzad)   03/06/15   @danielbryantuk  
  27. 27.   So,  we’ve  looked  at  the  business,  organisa7onal   structure,  and  people  aspects….     …how  do  we  actually  implement  this  change?   03/06/15   @danielbryantuk  
  28. 28. 4. Change management without Management double-speak 03/06/15   @danielbryantuk  
  29. 29. Change  Management  is  Essen7al   •  Fair  process   – Engagement   – Explana7on   – Expecta7on   •  Leading  change   – Transforma7on  is  a  process   – Create  a  coali7on,  and  a  vision   – Communicate,  empower,  plan,  consolidate   03/06/15   @danielbryantuk  
  30. 30. A  Look  into  My  Toolbox   •  (Over-­‐)communicate  vision   –  Engage,  explain,  expecta7ons  (7mescale  +  KPIs)   •  Workshops     –  Empower  and  support  champions   •  “Bikesheds”   •  Take  the  team  pulse  regularly…   03/06/15   @danielbryantuk  
  31. 31. A  Look  into  My  Toolbox   03/06/15   @danielbryantuk  
  32. 32. A  Look  into  My  Toolbox   •  MoSCoW   •  RASCI   –  Responsible   –  Accountable   –  Support   –  Collaborate   –  Informed   •  RAG  status   03/06/15   @danielbryantuk  
  33. 33. Some  common  themes…   03/06/15   @danielbryantuk  
  34. 34. Leadership  –  Oten  Undervalued   “Management  is  doing  things  right;     leadership  is  doing  the  right  things”   -­‐  Peter  Drucker   03/06/15   @danielbryantuk  
  35. 35. Behavioural  Economics   Psychological,  social,  cogniCve  and  emoConal   factors  that  affect  economic  decisions…   03/06/15   @danielbryantuk  
  36. 36.     In  summary…     03/06/15   @danielbryantuk  
  37. 37. The  Business  Behind  Microservices     •  Check  your  organisa7on  can  benefit  from   using  microservices  (connected  companies)   •  Cross-­‐func7onal  goal-­‐oriented  teams  FTW   •  Agile,  DevOps,  CI/CD  are  prerequisites   •  Lightweight  processes  help  with  change   03/06/15   @danielbryantuk  
  38. 38. THANKS...   @danielbryantuk   daniel.bryant@container-­‐solu7ons.com       @OpenCredo  /  @containersolu7       03/06/15   @danielbryantuk  
  39. 39. My  Other  Resources   •  My  ar7cles:   –  hGps://www.voxxed.com/blog/2015/01/understanding-­‐the-­‐business-­‐behind-­‐microservices-­‐ recommended-­‐reading-­‐part-­‐one/     –  hGp://java.dzone.com/ar7cles/introducing-­‐dzone-­‐guide-­‐cloud  (Cloud  DHARMA  guidelines)   –  hGp://www.dzone.com/research/guide-­‐to-­‐enterprise-­‐integra7on  (Enterprise  MSA  &  Decomposi7on)   •  Videos  I  men7oned:   –  hGps://www.parleys.com/tutorial/thinking-­‐fast-­‐slow-­‐sotware-­‐development     –  hGps://skillsmaGer.com/skillscasts/5938-­‐developing-­‐java-­‐services-­‐for-­‐the-­‐cloud     –  hGps://www.parleys.com/tutorial/moving-­‐devops-­‐mode-­‐easy-­‐hard-­‐just-­‐plain-­‐terrifying     •  My  InfoQ  news  (Cloud,  microservices,  and  container  tech)   –  hGp://www.infoq.com/author/Daniel-­‐Bryant   •  Other  books   –  hGp://www.amazon.co.uk/Working-­‐Effec7vely-­‐Legacy-­‐Robert-­‐Mar7n/dp/0131177052     –  hGp://www.amazon.co.uk/Implemen7ng-­‐Domain-­‐Driven-­‐Design-­‐Vaughn-­‐Vernon/dp/0321834577     03/06/15   @danielbryantuk  

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