Gorush 是一套用 Go 語言所撰寫的輕量級 Push Notification 服務，除了架設服務外，還可以讓 Android 或 iOS 開發者可以輕鬆使用 Command line 發送訊息給 App。本議程會介紹作者為什麼選用 Go 語言，以及其中的 Go 開發技巧與經驗。 專案網址: https://github.com/appleboy/gorush

1. Bo-Yi Wu
Gopher Day @ 2017.06.29
1

2. — 聯聯發科技後端⼯工程師
— DevOps
— Golang, PHP, Node.js ..
— 維護數個 Go 開源專案
— Gitea
— Gin
— Drone Plugin
— appleboy @GitHub
— appleboy @twitter
— appleboy @slideshare
— appleboy46 @facebook
2

3. — drone/drone
— go-gitea/gitea
— gin-gonic/gin
— appleboy/gorush
3

4. — drone/drone
— go-gitea/gitea
— gin-gonic/gin
— appleboy/gorush
4

5. https://mcs.mediatek.com/
5

6. Mediatek
Cloud
Sandbox
Trigger
Push
Email
hook
MQTT
TCP
HTTP
6

7. https://github.com/appleboy/gorush
7

8. A general push notification server
for smartphone application
8

9. — Written in Go
— Push requests to APNs and FCM
— Simple HTTP APIs
9

10. Client
FCM
APNs
Gorush
POST /push
JSON Body
HTTPS
APNs
Protocol
10

11. — 系統需求
— ⾼高效能 (Good Performance)
— ⾼高併發 (High Concurrency)
— 簡單的 net/http 就可以達到⽬目標
— 學習⾨門檻低
11

12. — 異異步發送訊息 (Asynchronous push)
— API Server 觸發條件
— 溫度過⾼高、⾎血壓過低
— API Server 需要快速回覆前端
— 後端架構不適合⾼高併發 (Nginx + PHP)
12

13. 13

14. FCM
APNs
API Server
API Server
API Server
PUSH
14

15. FCM
APNs
Worker
Worker
Worker
PUSHQueue
API
API
API
de-queue
所有訊息改成非同步 Asynchronous
AWS
en-queue
15

16. Nginx
Traefik
FCM
APNs
Gorush
Gorush
Gorush
PUSH
API
API
API
Http
Post /push
Gorush = Queue + Worker
16

17. 17

18. Client
FCM
APNs
Gorush
POST /push
JSON Body
HTTPS
APNs
Protocol
18

19. 19

20. 20

21. 21

22. 22

23. 23

24. 24

25. 25

26. 26

27. — GET /api/stat/go
— GET /api/stat/app
— GET /sys/stats
— GET /metrics
— POST /api/push
27

28. 28

29. 29

30. 30

31. 31

32. $ for i in {1..99999}; do bat -b.N=1000 -b.C=100 POST local:8088/api/push
32

33. 33

34. https://github.com/appleboy/gorush/#post-apipush
34

35. Push API ⽀支援 Sync Mode
35

36. Notification
Notification
Notification
Notification
worker
worker
worker
Client
Notification
worker
WaitGroup
36

37. 紀錄發送 Log
等待處理理結果
丟到 Work
Queue
37

38. 38

39. $ gorush -c config.yml
39

40. 伺服器設定
Route 設定
40

41. 伺服器設定
Route 設定
41

42. Integrate Let's Encrypt
42

43. 43

44. https://blog.wu-boy.com/2017/04/1-line-letsencrypt-https-servers-
in-golang/
44

45. Android 設定
iOS 設定
Log 設定
45

46. 動態 API Key
46

47. 47

48. 48

49. 49

50. memory, blotdb, buntdb, leveldb, redis
50

51. 51

52. 52

53. package flg
53

54. 54

55. Docker Container
55

56. $ gorush -android –m="message" -k="API Key" –t="token"
56

57. $ gorush -ios -m="message" -i="certificate path"
-t="token" -topic="topic"
57

58. write once run anywhere
58

59. https://github.com/mitchellh/gox
59

60. 60

61. https://github.com/facebookgo/grace
61

62. 如何解決此問題?
62

63. // +build windows
https://golang.org/pkg/go/build/
63

64. 64

65. 65

66. $ docker build -t appleboy/gorush .
https://goo.gl/zQbhmu
66

67. 67

68. 68

69. 基於容器 (Container) 技術的 CI/CD 系統
69

70. 70

71. Git Test Release Docker Notify
71

72. — 執⾏行行測試指令
— 分析程式碼
— 驗證程式碼品質
— 編譯 Binary
— 部署 Binary
— 編譯 Docker Image
— 部署 Docker Container
— 通知訊息
72

73. 73

74. Git Test Release Docker Notify
74

75. 75

76. Git Test Release Docker Notify
76

77. ⾃自選 Image
測試步驟
77

78. 78

79. 79

80. 80

81. 81

82. $ coverage all
https://github.com/appleboy/golang-testing
82

83. Git Test Release Docker Notify
83

84. ⾃自選 Image
定義步驟
Git tag 才執⾏行行
84

85. 85

86. 86

87. Git Test Release Docker Notify
87

88. Drone Envars
Drone Secrets
Plugin Image
88

89. Git Test Release Docker Notify
89

90. Plugin Image
90

91. 91

92. 92

93. $ kubectl create -f k8s
$ kubectl get services
$ minikube service frontend
93

94. 94
https://github.com/golangtw/jobs

95. http://bit.ly/oneday-devops
95

96. 謝謝⼤大家參參與
96