Microservice Architecture, over the rainbow

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Vincenzo Carlino

Slides from the presentation delivered by Steve Maraspin and myself at the Italian Codemotion 2022, Spring Edition

Software

Microservice Architecture 
Over the rainbow 
Vincenzo Carlino <v.carlino@mvlabs.it> 
Steve Maraspin <s.maraspin@mvlabs.it> 
 
Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022

Global Authentication & Authorization Service

Orchestration VS Choreography 
● Choreography can maximize fan-in,  
as services react to events independently

Orchestration VS Choreography 
● Choreography can maximize fan-in,  
as services react to events independently 
 
● Orchestration allows a client to handle & centralize a workﬂow 
Orchestrator can be kept simple & ﬂexible

Maintenance
logging code…
Inspections
logging code…

https://dzone.com/articles/ms-chassis-pattern

Polyglot System Consequences 
● More Coding Conventions 
● Duplicated Code Logic 
● Additional Team Knowledge Needed 
● Entropy

What to Keep in Mind 
 
• Not an all or nothing choice 
– Choreography VS Orchestrator 
– Microservices or Not 
• A little upfront design is suggested (boundary deﬁnition) 
– At later stages microservices foster agile approaches 
• Conway’s Law -> Organizational impact (DevOps) 
• Achieved separation of concerns, ease of deployment 
• Kubernetes & related tools helped a lot! 
• There are long term beneﬁts (for complex projects)

Thank you 
Vincenzo Carlino <v.carlino@mvlabs.it> 
Steve Maraspin <s.maraspin@mvlabs.it> 
 
Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022

@maraspin 
s.maraspin@mvlabs.it 
@VincenzoCarli15  
v.carlino@mvlabs.it

Questions? 
Vincenzo Carlino <v.carlino@mvlabs.it> 
Steve Maraspin <s.maraspin@mvlabs.it> 
 
Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022

Join Our Mailing List
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Microservice Architecture, over the rainbow

1. Microservice Architecture  Over the rainbow  Vincenzo Carlino <v.carlino@mvlabs.it>  Steve Maraspin <s.maraspin@mvlabs.it>    Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022   

2. VINCENZO 

3. STEVE 

10. Microservices since 2017

11.

12.

13. DEPLOYMENT EXAMPLE 

14. ANOTHER DEPLOYMENT EXAMPLE 

15.

16. How do we handle authentication & ACLs? 

17. AUTH 

18. AUTH 2.0 

19. Global Authentication & Authorization Service     

20. Global Authentication & Authorization Service     

21. Global Authentication & Authorization Service     

22. Global Authentication & Authorization Service     

23. Auth 3.0   

24. Auth 3.0    Not a shared database!

26. Auth 3.0 

33. How are logged users affected? 

34. Logout 

35. Workﬂow? 

36. User

37. User Group

38. User Work Order Group

39. User Work Order Group Inspection

40.

41.

42.

43.

44.

45.

46.

47. Orchestration VS Choreography  ● Choreography can maximize fan-in,   as services react to events independently   

48. Orchestration VS Choreography  ● Choreography can maximize fan-in,   as services react to events independently    ● Orchestration allows a client to handle & centralize a workﬂow  Orchestrator can be kept simple & ﬂexible 

49. LEFTOVERS… 

50. Clear Cache  Developer

51. Clear Cache  Developer

52. Clear Cache  Developer

53. Clear Cache  Developer

54. Clear Cache 

55. Clear Cache 

56. Cross Cutting Concerns 

57. Maintenance Inspections

58. Maintenance logging code… Inspections logging code…

59. Logging Maintenance Inspections

60. Logging

61. Logging ACL

62. https://dzone.com/articles/ms-chassis-pattern

63. Chassis Framework   Service Template 

64.

65. Polyglot System Consequences  ● More Coding Conventions  ● Duplicated Code Logic  ● Additional Team Knowledge Needed  ● Entropy 

66. Dealing with Complexity 

67.

68.

69.

70.

71.

72.

73. Debugging Microservices with Tracing     

74. Debugging Microservices with Tracing   

75. Debugging Microservices with Tracing   

76.

77. Versioning  Tags Images Deployments 

78.  

79. OBSERVABILI-TEAM 

80. Should I use them, or should I not? 

81. Monolithic Architecture 

82. Monolithic Architecture 

83. Microservices concepts applied … 

84. WRAP UP 

85. What to Keep in Mind    • Not an all or nothing choice  – Choreography VS Orchestrator  – Microservices or Not  • A little upfront design is suggested (boundary deﬁnition)  – At later stages microservices foster agile approaches  • Conway’s Law -> Organizational impact (DevOps)  • Achieved separation of concerns, ease of deployment  • Kubernetes & related tools helped a lot!  • There are long term beneﬁts (for complex projects) 

86. Thank you  Vincenzo Carlino <v.carlino@mvlabs.it>  Steve Maraspin <s.maraspin@mvlabs.it>    Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022   

87. @maraspin  s.maraspin@mvlabs.it  @VincenzoCarli15   v.carlino@mvlabs.it 

88. Additional Resources  FORTHCOMING

89. Questions?  Vincenzo Carlino <v.carlino@mvlabs.it>  Steve Maraspin <s.maraspin@mvlabs.it>    Codemotion Online Tech Conference - Italian Edition Spring 2022 - 23/03/2022   

90. Join Our Mailing List 6 Messages a Year, at Most http://eepurl.com/s3Kab @mvlabsit www.facebook.com/mvlabs

Microservice Architecture, over the rainbow

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