Java in serverless world with Fn project [CodeOne 2018]

Serverless isn't a new thing, Amazon is offering it for a long time now, it is well know in JavaScript world, but is it present also in Java.

Java is often considered as "heavy weight", code need to be compiled, JVM need to be started, is it even possible to do serverless in Java world, and on top of that not be tied to Cloud provider specific implementation.

Join me in this talk, where I will answer all of this questions and many more while showing you Fn project open-source container-native serverless platform that you can run anywhere. You will know after it what it is, what it isn't should you use it, and when not to use it.

All of this will be done through code since it is more fun that way

Code: https://github.com/vladimir-dejanovic/java-in-fn-project

Transcript

1. #CodeOne @VladimirD_42 Java in Serverless world with FN Project [DEV4748] Vladimir Dejanović 22 October 2018
2. @VladimirD_42 #CodeOne https://upload.wikimedia.org/wikipedia/en/8/83/Safe_Harbor_Logo.jpg Safe Harbor Statement
3. @VladimirD_42 Vladimir Dejanović Let’s Meet @VladimirD_42 vladimir@itshark.xyz http://itshark.xyz #CodeOne
4. @VladimirD_42 Vladimir Dejanović Let’s Meet http://itshark.xyz #CodeOne
5. @VladimirD_42 Vladimir Dejanović Let’s Meet #CodeOne
6. @VladimirD_42 Vladimir Dejanović Let’s Meet and Others... #CodeOne
7. @VladimirD_42 #CodeOne
8. @VladimirD_42 #CodeOne Agenda
9. @VladimirD_42 #CodeOne Agenda Severless
10. @VladimirD_42 #CodeOne Agenda Doubts & Concerns Severless
11. @VladimirD_42 #CodeOne Agenda Doubts & Concerns FN Project Severless
12. @VladimirD_42 #CodeOne Agenda Doubts & Concerns Questions FN Project Severless
13. @VladimirD_42 #CodeOne Serverless
14. @VladimirD_42 #CodeOne Serverless Explained
15. @VladimirD_42 #CodeOne Serverless Explained Hardware
16. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host
17. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker
18. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App
19. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function
20. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function
21. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function More Options
22. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function More Options Less Options
23. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function More Options Less Options
24. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function More Options Less Options More Work for Us
25. @VladimirD_42 #CodeOne Serverless Explained Hardware Virtual Host Docker App Function More Options Less Options More Work for Us More Work for Others
26. @VladimirD_42 #CodeOne Functions
27. @VladimirD_42 #CodeOne Functions Small Unit of Work
28. @VladimirD_42 #CodeOne Functions Auto Scaling Small Unit of Work
29. @VladimirD_42 #CodeOne Functions Auto Scaling Present only when needed Small Unit of Work
30. @VladimirD_42 #CodeOne Functions Auto Scaling Great value for $$$ Present only when needed Small Unit of Work
31. @VladimirD_42 #CodeOne Important Messages
32. @VladimirD_42 #CodeOne Important Messages Servers exists
33. @VladimirD_42 #CodeOne Important Messages Servers exists No Silver Bullet
34. @VladimirD_42 #CodeOne
35. @VladimirD_42 #CodeOne Doubts & Concerns
36. @VladimirD_42 #CodeOne Doubts & Concerns
37. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock
38. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock All Languages Equal
39. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock All Languages Equal Complex Problems
40. @VladimirD_42 #CodeOne Doubts & Concerns Lot of Requests
41. @VladimirD_42 #CodeOne Doubts & Concerns Lot of Requests State/Sync/Cache
42. @VladimirD_42 #CodeOne Doubts & Concerns Lot of Requests State/Sync/Cache Cold/Hot Start
43. @VladimirD_42 #CodeOne FN Project
44. @VladimirD_42 #CodeOne http://fnproject.io/
45. @VladimirD_42 #CodeOne The Fn project is an open-source container-native serverless platform that you can run anywhere -- any cloud or on-premise.
46. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock All Languages Equal
47. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock All Languages Equal
48. @VladimirD_42 #CodeOne It’s easy to use, supports every programming language, and is extensible and performant.
49. @VladimirD_42 #CodeOne Doubts & Concerns Vendor Lock All Languages Equal
50. @VladimirD_42 #CodeOne ref: https://raw.githubusercontent.com/fnproject/docs/master/fn/general/images/fn-architecture.png
51. @VladimirD_42 #CodeOne ref: https://raw.githubusercontent.com/fnproject/docs/master/fn/general/images/fn-architecture.png
52. @VladimirD_42 #CodeOne ref: https://raw.githubusercontent.com/fnproject/docs/master/fn/general/images/fn-architecture.png
53. @VladimirD_42 #CodeOne ref: https://raw.githubusercontent.com/fnproject/docs/master/fn/general/images/fn-architecture.png
54. @VladimirD_42 #CodeOne Demo Simple Function Talking is boring!! Show Code
55. @VladimirD_42 #CodeOne Demo Simple Function Branch: init-0.3 https://github.com/vladimir-dejanovic/ java-in-fn-project/
56. @VladimirD_42 #CodeOne Doubts & Concerns State/Sync/Cache Complex Problems
57. @VladimirD_42 #CodeOne Demo State Talking is boring!! Show Code
58. @VladimirD_42 #CodeOne Demo Simple Function Branch: state-0.3 https://github.com/vladimir-dejanovic/ java-in-fn-project/
59. @VladimirD_42 #CodeOne Doubts & Concerns State/Sync/Cache Complex Problems
60. @VladimirD_42 #CodeOne FN Flow
61. @VladimirD_42 #CodeOne FN Flow <dependency> <groupId>com.fnproject.fn</groupId> <artifactId>flow-runtime</artifactId> <version>${fdk.version}</version> </dependency>
62. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
63. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
64. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
65. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
66. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
67. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
68. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
69. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
70. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
71. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
72. @VladimirD_42 #CodeOne FN Flow Flow flow = Flows.currentFlow(); FlowFuture f = flow.supply( () -> ….) .thenApply(i -> … ) .exceptionally(err -> … ) FlowFuture f = flow.invokeFunction(<name>, <input value>)
73. @VladimirD_42 #CodeOne Doubts & Concerns State/Sync/Cache Complex Problems
74. @VladimirD_42 #CodeOne Doubts & Concerns Lot of Requests
75. @VladimirD_42 #CodeOne Doubts & Concerns Lot of Requests Cold/Hot Start
76. @VladimirD_42 #CodeOne Summary
77. @VladimirD_42 #CodeOne Summary Serverless
78. @VladimirD_42 #CodeOne Summary Serverless Doubts and Concerns
79. @VladimirD_42 #CodeOne Summary Serverless Doubts and Concerns FN Project
80. @VladimirD_42 #CodeOne Thank You
81. @VladimirD_42 #CodeOne Resources https://github.com/vladimir-dejanovic/ java-in-fn-project/ http://fnproject.io/ https://github.com/fnproject/fdk-java
82. @VladimirD_42 Questions @VladimirD_42 vladimir@itshark.xyz http://itshark.xyz #CodeOne