Gorush: A push notification server written in Go

* Why I create the Gorush Project?
* Detail implementation in Golang
* Testing and deploy Go project.
* Run Gorush in Kubernetes.

1. A push notification server written in Go Gorush 1 Bo-Yi Wu M opcon @ 2017. 10 .2 8

2. Why I create the Gorush Project? Detail implementation in Golang Testing and deploy Go project. R un Gorush in Kubernetes . 2 Outline

3. Mediatek Engineer DevOps Golang , PHP, Node.js .. Some open source Gitea Gin Drone appleboy @GitHub appleboy @twitter appleboy @ slideshare appleboy46 @facebook About Me 3

4. drone/drone go-gitea/gitea gin -gonic /gin appleboy/ g orush Go Open Source in GitHub 4

5. drone/drone go-gitea/gitea gin -gonic /gin appleboy/ g orush Go Open Source in GitHub 5

6. https://mcs.mediatek.com / 6

7. Mediatek C loud Sandbox Trigger Push Email hook MQTT TCP HTTP Mediatek Cloud Sandbox 7

8. Mediatek C loud Sandbox Trigger Push Email hook MQTT TCP HTTP Mediatek Cloud Sandbox 8 Forcus on Push notification

9. https://github.com/appleboy/ gorush Gorush 9

10. A general push notification server for smartphone application Gorush 10

11. Written in Go Push requests to APNs and FCM Simple HTTP APIs ( JSON ) RPC Protocol ( gRPC ) Gorush 11

12. Overview Client FCM A PNs Gorush POST /push JSON Body HTTPS APNs Protocol 12

13. System Requirement Good Performance High Concurrency Simple net /http Package Easy to Learn Why I Choose Go 13

14. https://github.com/golang/go/wiki/ FromXToGo Why we switch From XX to Go 14

15. https://github.com/golangtw/ jobs Who use Go in Taiwan 15

16. 16 Push System A rchitecture

17. Before S even years ago FCM APNs API Server API Server API Server PUSH 17

18. Before Two Years ago FCM APNs Worker Worker Worker PUSH Queue API API API d e-queue Asynchronous Notification AWS en-queue 18

19. Nginx Traefik Now … FCM APNs Gorush Gorush Gorush PUSH API API API Http Post /push Gorush = Queue + Worker 19

20. How to implement simple notification service Gorush Architecture 20

21. How to send notification Client FCM A PNs Gorush POST /push JSON Body HTTPS APNs Protocol 21

22. Http Server g RPC Server Push API Worker 22 Gorush Component

23. n et/http + Gin Route+ Facebook Grace 23

24. Push API using Gin Framework 24

25. Initial Worker Queue 25

26. API Request and Response 26

27. Send notification to Queue 27

28. Start Worker 28

29. Gorush Major Feature 29

30. GET /api/stat/ go GET /api/stat/ app GET /sys/ stats GET / metrics POST /api/ push GET / healthz API List 30

31. GET /api/stat/go 31

32. GET /api/stat / app 32

33. GET / sys/stats 33

34. GET /metrics ( P rometheus ) 34

35. GET /metrics ( P rometheus + G rafana ) $ for i in {1.. 99999} ; do bat - b.N =1000 - b.C =100 POST local: 8088/ api / push 35

36. GET /metrics ( P rometheus + G rafana ) 36

37. https://github.com/appleboy/gorush/#post- apipush POST /api/push 37

38. Push API S upport Sync Mode A sync vs. Sync Push 38

39. Notification Notification Notification Notification worker worker worker Client Notification worker WaitGroup 39

40. Notification Log Wait response S end to Work Queue 40

41. 41

42. $ gorush Start Gorush Server 42

43. $ gorush – c config.yml Custom config file 43

44. $ GORUSH_CORE_PORT =8089 gorush Global Variable 44

45. / etc / gorush / config.yml $HOME/. gorush / config.yml . (Current Folder) 45 Auto Load Config file

46. Server C onfg Route C onfig 46

47. Server Config Route Config 47

48. 48 Go Support Auto TLS Integrate Let's Encrypt

49. A utocert package in Go 49

50. Write one line code to support renew Let’s Encrypt automatically https://goo.gl/ pfeC5Q 50

51. Android Config iOS Config Log C onfig 51

52. Send Android N otification API Key From Request 52

53. iOS Support .p12, . pem or .p8 53 Supports new Apple Token Based Authentication (JWT)

54. Send iOS N otification 54

55. Success or fail records 55

56. memory, blotdb, buntdb, leveldb, redis Storage 56

57. Interface 57

58. I nit Interface 58

59. p ackage flg Send Notification F rom CLI 59

60. Flag in Go 60

61. F lag doesn’t support Global variable Docker Container 61

62. Configuration Management 62

63. $ gorush -android – m= " message " -k ="API Key" – t= " token " Sned Android 63

64. $ gorush -ios -m="message" - i ="certificate path" - t="token" -topic="topic" S end iO S 64

65. write once run anywhere Cross Platform 65

66. https://github.com/mitchellh/ gox Simple Go Cross Compilation 66

67. 67

68. https://github.com/facebookgo/ grace Graceful restart & zero downtime 68

69. How to resolve this problem? Facebook Grace doesn’t Support Windows 69

70. // +build windows https://golang.org/pkg/go/build / Go build Flag 70

71. Build Binary into Docker Container 71

72. Docker Multi-Stage Build 72

73. Build small image using docker multi-stage $ docker build -t appleboy/ gorush . https://goo.gl/ zQbhmu 73

74. Auto testing and deploy in GO 74

75. Drone 75

76. Continuous Delivery system built on container technology What is Drone? 76

77. How to setup deploy process? 77 Using . drone.yml file

78. How to build Go binary in Drone 78

79. Testing Code Analytic Code Code Quality Build Binary Deploy Binary Build Docker Image Deploy Docker Container Send Notification Pipeline Process in Go 79

80. How to build Go binary in Drone 80

81. First Step: Git Clone 81

82. How to build Go binary in Drone 82

83. Choose Image Testing Process 83

84. Co de Quality in Go ( golint ) 84

85. Check comment typos ( Misspell ) 85

86. Check code format in Go ( gofmt ) 86

87. Check vendor folder ( govendor ) 87

88. Testing in Go $ coverage all https://github.com/appleboy/golang- testing 88

89. How to build Go binary in Drone 89

90. Choose Image Step Name Run on for Git tag event 90

91. Build binary for Cross Platform ( gox ) 91

92. Deploy to GitHub Release Page 92

93. How to build Go binary in Drone 93

94. Drone Envars Drone Secrets Plugin Image 94

95. How to build Go binary in Drone 95

96. Plugin Image Push Notification From FB Bot 96

97. Happy Coding 97

98. Run Gorush in Kubernets 98

99. 99 Container Health Check

100. 100 Global Configuration Map

101. 101

102. $ kubectl create -f k8s $ kubectl get services $ minikube service frontend Three Steps 102

103. Interesting In Drone http://bit.ly/devops-drone 103

104. Thanks All coming. Any Problem? 104