Microservice Patterns - Implemented by Eclipse MicroProfile

Eclipse MicroProfile provides specifications for the most commonly used microservice patterns. This session presents a group of patterns that will be in explained and demoed live in a down-to-earth and easily understandable way.

Patterns covered include Service per Container, Externalized Configuration, Health Check API, Application Metrics, Circuit Breaker, Access Token, Distributed Tracing.

There will be live coding and demo of all technologies implementing the patterns.

Transcript

1. Microservice Patterns Implemented by Eclipse MicroProfile Ivar Grimstad
 Principal Consultant, Cybercom Sweden
2. @ivar_grimstad https://github.com/ivargrimstad https://www.linkedin.com/in/ivargrimstad
3. @ivar_grimstad #microservices Introduction The Patterns Summary
4. @ivar_grimstad #JakartaEE #EE4J
5. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
6. @ivar_grimstad #microservices M icroProfile 2.2 Februyary 12, 2019
7. @ivar_grimstad #microservices The Patterns
8. @ivar_grimstad #microservices 1. Microservice Architecture 2. Externalised Configuration 3. Health Check API 4. Application Metrics 5. Circuit Breaker 6. Access Token 7. Distributed Tracing 8. Service per Container
9. @ivar_grimstad #microservices
10. @ivar_grimstad #microservices Microservice Architectures #1
11. @ivar_grimstad #microservices
12. @ivar_grimstad #microservices
13. @ivar_grimstad #microservices What’s the application’s deployment architecture?
14. @ivar_grimstad #microservices Monolithic Architecture Monolithic Application
15. @ivar_grimstad #microservices Monolithic Architecture
16. @ivar_grimstad #microservices Service A Service B Service C Application Call A Call B Call C Microservice Architecture
17. @ivar_grimstad #microservices Microservice Architecture
18. @ivar_grimstad #microservices Externalised Configuration #2
19. @ivar_grimstad #microservices
20. @ivar_grimstad #microservices
21. @ivar_grimstad #microservices How to enable a service to run in multiple environments without modification?
22. @ivar_grimstad #microservices Configuration for MicroProfile
23. @ivar_grimstad #microservices System Properties System.getProperties() Environment Variables System.getenv() Application Configuration META-INF/microprofile-config.properties
24. @ivar_grimstad #microservices DEMO
25. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
26. @ivar_grimstad #microservices Health Check API #3
27. @ivar_grimstad #microservices
28. @ivar_grimstad #microservices
29. @ivar_grimstad #microservices How to detect that a running service instance is unable to handle requests?
30. @ivar_grimstad #microservices MicroProfile Health API
31. @ivar_grimstad #microservices DEMO
32. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
33. @ivar_grimstad #microservices Application Metrics #4
34. @ivar_grimstad #microservices
35. @ivar_grimstad #microservices
36. @ivar_grimstad #microservices How to understand the behavior of an application and troubleshoot problems?
37. @ivar_grimstad #microservices MicroProfile Metrics
38. @ivar_grimstad #microservices DEMO
39. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
40. @ivar_grimstad #microservices Circuit Breaker #5
41. @ivar_grimstad #microservices
42. @ivar_grimstad #microservices
43. @ivar_grimstad #microservices How to prevent a network or service failure from cascading to other services?
44. @ivar_grimstad #microservices
45. @ivar_grimstad #microservices
46. @ivar_grimstad #microservices DEMO
47. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
48. @ivar_grimstad #microservices Access Token #6
49. @ivar_grimstad #microservices
50. @ivar_grimstad #microservices
51. @ivar_grimstad #microservices How to communicate the identity of the requestor to the services that handle the request?
52. @ivar_grimstad #microservices Basic Authentication
53. @ivar_grimstad #microservices POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Basic c25vb3850nBhc3M= User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”}
54. @ivar_grimstad #microservices OAuth 2.0
55. @ivar_grimstad #microservices POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Bearer 2YotnF2FEjrlzCsidMWpAA User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”} POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Basic c25vb3850nBhc3M= User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”} POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Bearer 2YotnF2FEjrlzCsidMWpAA User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”}
56. @ivar_grimstad #microservices JSON Web Token (JWT)
57. @ivar_grimstad #microservices POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiQ mVhcmVyIiwiYXVkIjoic2ltcGxlYXBwIiwic3ViIjoiYm9iIiwidXBuIjo iYm9iIiwiY3VzdG9tQ2xhaW0iOiJjdXN0b21WYWx1ZSIsImdyb3VwcyI6W yJhZG1pbiIsInVzZXIiXSwiaXNzIjoiaHR0cDovL29wZW5saWJlcnR5Lml vIiwiZXhwIjoxNTI1MzM5MjU5LCJpYXQiOjE1MjUyNTI4NTl9.nDDpCR2w MWsENaDGORQblErOCJ6ii1R-N6iSzVsAz2RoUlvM2PrST2qT6kje-Nz9vc ptbSpOSlF1OuJydvP8Tg3puJKI5vGyL4RMowgJHwdvv7hMZvrK1loNrPfb yv727L9UwJSZMdzL_sibiXDuj-bIBIr6yGjVF86aQnh-PWBV8HHM1iW8l1 _y351lp2CAPkfjKwLU91iIT1jO1QCwItF8Dv-zAzmhd_rOIF58eB809_5r m0MMGIuAXdgUiU2bdEJQCkTWJKNNaSu5oddZzlKaCX4hIgBdrVV6447DM0 i31YRhLpYHfbzh_NlRrRPjGPNgzOIN1RInwPC8jdg_g User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”}
58. @ivar_grimstad #microservices POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiQ mVhcmVyIiwiYXVkIjoic2ltcGxlYXBwIiwic3ViIjoiYm9iIiwidXBuIjo iYm9iIiwiY3VzdG9tQ2xhaW0iOiJjdXN0b21WYWx1ZSIsImdyb3VwcyI6W yJhZG1pbiIsInVzZXIiXSwiaXNzIjoiaHR0cDovL29wZW5saWJlcnR5Lml vIiwiZXhwIjoxNTI1MzM5MjU5LCJpYXQiOjE1MjUyNTI4NTl9.nDDpCR2w MWsENaDGORQblErOCJ6ii1R-N6iSzVsAz2RoUlvM2PrST2qT6kje-Nz9vc ptbSpOSlF1OuJydvP8Tg3puJKI5vGyL4RMowgJHwdvv7hMZvrK1loNrPfb yv727L9UwJSZMdzL_sibiXDuj-bIBIr6yGjVF86aQnh-PWBV8HHM1iW8l1 _y351lp2CAPkfjKwLU91iIT1jO1QCwItF8Dv-zAzmhd_rOIF58eB809_5r m0MMGIuAXdgUiU2bdEJQCkTWJKNNaSu5oddZzlKaCX4hIgBdrVV6447DM0 i31YRhLpYHfbzh_NlRrRPjGPNgzOIN1RInwPC8jdg_g User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”}
59. @ivar_grimstad #microservices ✦Header ✦ JSON, Base64 URL Encoded ✦ Algorithm, Type
 ✦Payload ✦ JSON, Base64 URL Encoded ✦ Standard + Custom entries
 ✦Signature ✦ Binary, Base64 URL Encoded ✦ The actual signature
60. @ivar_grimstad #microservices POST /hello HTTP/1.1 Host: localhost:8080 Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJ0b2tlbl90eXBlIjoiQ mVhcmVyIiwiYXVkIjoic2ltcGxlYXBwIiwic3ViIjoiYm9iIiwidXBuIjo iYm9iIiwiY3VzdG9tQ2xhaW0iOiJjdXN0b21WYWx1ZSIsImdyb3VwcyI6W yJhZG1pbiIsInVzZXIiXSwiaXNzIjoiaHR0cDovL29wZW5saWJlcnR5Lml vIiwiZXhwIjoxNTI1MzM5MjU5LCJpYXQiOjE1MjUyNTI4NTl9.nDDpCR2w MWsENaDGORQblErOCJ6ii1R-N6iSzVsAz2RoUlvM2PrST2qT6kje-Nz9vc ptbSpOSlF1OuJydvP8Tg3puJKI5vGyL4RMowgJHwdvv7hMZvrK1loNrPfb yv727L9UwJSZMdzL_sibiXDuj-bIBIr6yGjVF86aQnh-PWBV8HHM1iW8l1 _y351lp2CAPkfjKwLU91iIT1jO1QCwItF8Dv-zAzmhd_rOIF58eB809_5r m0MMGIuAXdgUiU2bdEJQCkTWJKNNaSu5oddZzlKaCX4hIgBdrVV6447DM0 i31YRhLpYHfbzh_NlRrRPjGPNgzOIN1RInwPC8jdg_g User-Agent: HTTPie/0.9.9 Accept: */* Content-Type: application/json Content-Length: 26 {“message”:“Hello, Duke!”}
61. @ivar_grimstad #microservices { “alg”: “RS256”, “typ”: “JWT} { “token-type: “access-token”, “username”: “duke”, “scopes”: [ “java”: “everywhere” ], “exp”: 1474280963, “iat”: 1474279163 “jti”: “66881b068b249ad9” } nDDpCR2wMWsENaDGORQblErOCJ6ii1R-N6iSzVsAz2RoUlvM2PrST2qT6kje-Nz 9vcptbSpOSlF1OuJydvP8Tg3puJKI5vGyL4RMowg-JHwdvv7hMZvrK1loNrPfby v727L9UwJSZMdzL_sibiXDuj-bIBIr6yGjVF86aQnh-PWBV8HHM1iW8l1_y351l p2CAPkfjKwLU91iIT1jO1QCwItF8Dv-zAzmhd_rOIF58eB809_5rm0MMGIuAXdg UiU2bdEJQCkTWJKNNaSu5oddZzlKaCX4hIgBdrVV6447DM0i31YRhLpYHfbzh_N lRrRPjGPNgzOIN1RInwPC8jdg_g
62. @ivar_grimstad #microservices DEMO
63. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE Open Liberty
64. @ivar_grimstad #microservices Distributed Tracing #7
65. @ivar_grimstad #microservices
66. @ivar_grimstad #microservices
67. @ivar_grimstad #microservices How to understand the behavior of an application and troubleshoot problems?
68. @ivar_grimstad #microservices
69. @ivar_grimstad #microservices DEMO
70. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE Open Liberty
71. @ivar_grimstad #microservices Service per Container #8
72. @ivar_grimstad #microservices
73. @ivar_grimstad #microservices
74. @ivar_grimstad #microservices How are services packaged and deployed?
75. @ivar_grimstad #microservices Application Server (Container) Service C Service B Service A Configuration A Configuration B Configuration C
76. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE Thin WAR
77. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE UberJAR
78. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE java -jar dukes.jar
79. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE Hollow JAR
80. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE java -jar dukes.jar dukes.war
81. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE Hardware Operating System JVM UberJAR Hardware Operating System JVM MicroProfile Container MicroProfile Application Hardware Operating System JVM Java EE Container Java EE Application java -jar dukes.jar java -jar dukes.jar dukes.war deployDukes.sh
82. @ivar_grimstad #microservices
83. @ivar_grimstad #microservices Hardware Operating System JVM UberJAR Hardware Operating System JVM MicroProfile Container MicroProfile Application Hardware Operating System JVM Java EE Container Java EE Application docker run dukes docker run dukes docker run dukes
84. @ivar_grimstad #microservices
85. @ivar_grimstad #microservices
86. @ivar_grimstad #microservices Hardware Operating System JVM UberJAR Hardware Operating System Native Application Hardware Operating System JVM Java EE Container Java EE Application docker run dukes docker run dukes docker run dukes JVM MicroProfile Container MicroProfile Application
87. @ivar_grimstad #microservices DEMO
88. @ivar_grimstad #MicroProfile #JavaEE #EE4J #JakartaEE
89. @ivar_grimstad #microservices Summary
90. @ivar_grimstad #microservices
91. @ivar_grimstad #microservices 1. Microservice Architecture 2. Externalised Configuration 3. Health Check API 4. Application Metrics 5. Circuit Breaker 6. Access Token 7. Distributed Tracing 8. Service per Container
92. @ivar_grimstad #microservices Microservice Architecture http://microservices.io Samples https://github.com/ivargrimstad/microservice-patterns Microprofile http://microprofile.io Jakarta EE https://jakarta.ee
93. @ivar_grimstad #microservices cybercom.com