WIDS 2016 - Keynote Speaker - Matt Heath, Mondo

1. Building Microservice
Architectures with Go
Matt Heath, Mondo
#WIDS

2. Hi, I’m Matt
@mattheath

6. monoliths
traditional dev

16. ?

17. DATABASE
APPLICATION

18. DATABASE
APPLICATION

19. DATABASEDATABASES
APPLICATION

20. DATABASEDATABASES
APPLICATION
SEARCH

21. DATABASEDATABASES
APPLICATION
CACHE
SEARCH

22. DATABASEDATABASES
APPLICATION
CACHE
SEARCH
CAT GIFS

23. ALL
HAIL
THE
MONOLITH

24. DO NOT WANT

25. DATABASEDATABASES
APPLICATION
CACHE
SEARCH
CAT GIFS

26. APPLICATION

29. Microservices
at Mondo?

30. Single Responsibility
Principle

31. Bounded Context

32. Well defined
Interfaces

33. Composability

34. Getting started

35. LOAD BALANCER

36. LOAD BALANCER
HTTP API & ROUTING LAYER

37. TRANSPORT
LOAD BALANCER
HTTP API & ROUTING LAYER

38. SERVICE SERVICE SERVICE
TRANSPORT
LOAD BALANCER
HTTP API & ROUTING LAYER

39. SERVICE SERVICE SERVICE
TRANSPORT
DATABASE DATABASE DATABASE
LOAD BALANCER
HTTP API & ROUTING LAYER

40. SERVICE SERVICE SERVICE
TRANSPORT
DATABASE DATABASE DATABASE
LOAD BALANCER
API GATEWAY

41. APPLICATION
LOAD BALANCER

42. API GATEWAY
APPLICATION
LOAD BALANCER

43. API GATEWAY
APPLICATION
LOAD BALANCER

44. API GATEWAY
APPLICATION
LOAD BALANCER
SERVICESERVICESERVICES

46. Simple
Static typing
Static linking

47. Comprehensive stdlib
eg. Networking

48. Concurrency

49. Interfaces

50. micro
Go Kit
gRPC
Kite

51. LOAD BALANCER

52. LOAD BALANCER
HTTP API & ROUTING LAYER

53. API
SERVICE
LOAD BALANCER
HTTP API & ROUTING LAYER

55. /webhooks —-> Webhook API

56. WEBHOOK
API
LOAD BALANCER
HTTP API & ROUTING LAYER

57. WEBHOOK
API
AUTH
SERVICE
WEBHOOK
SERVICE
LOAD BALANCER
HTTP API & ROUTING LAYER

58. WEBHOOK
API
AUTH
SERVICE
WEBHOOK
SERVICE
LOAD BALANCER
HTTP API & ROUTING LAYER
DATABASE

59. WEBHOOK
API
AUTH
SERVICE
WEBHOOK
SERVICE
LOAD BALANCER
HTTP API & ROUTING LAYER
DATABASE
DATABASE

60. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER
DATABASE
DATABASE
EXTERNAL
PROVIDER

61. SERVICE

62. Logic
Handlers
Storage
SERVICE

63. mercury
Logic
Handlers
Storage
SERVICE

64. type Handler func(request) (response, error)

65. mercury
Logic
Handlers
Storage
SERVICE

66. mercury
Logic
Handlers
Storage libraries
SERVICE

67. SERVICE
Deployment
Service Discovery
Configuration
Monitoring
Authentication
Authorisation
Storage
Circuit Breaking

70. Small
Images

71. Statically
Compiled

73. Making our
service reliable

74. Topology
Management

75. WEBHOOK
API
LOAD BALANCER
HTTP API & ROUTING LAYER
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE

76. WEBHOOK
API
LOAD BALANCER
HTTP API & ROUTING LAYER
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE

77. WEBHOOK
API
LOAD BALANCER
HTTP API & ROUTING LAYER
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE

78. WEBHOOK
API
LOAD BALANCER
HTTP API & ROUTING LAYER
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE
WEBHOOK
SERVICE
SLOW /
ERRORS

79. Event Driven
Architecture

80. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER

81. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER

82. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER

83. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER
SERVICE
C
SERVICE
D
E

84. API
SERVICE
SERVICE
A
SERVICE
B
LOAD BALANCER
HTTP API & ROUTING LAYER
SERVICE
C
SERVICE
D
G
E
F

85. ?
? ?
LOAD BALANCER
HTTP API & ROUTING LAYER
?
?
??
?
?
?
?
?
?
?

86. Context
Propagation

87. api
api
api.customer
api.customer
service.customer
service.customer

88. api
api
api.customer
api.customer
service.customer
service.customer

89. 8096820c-3b7b-47ec-bce6-1c239252ab40

90. api
api
api.customer
api.customer
service.customer
service.customer

91. api
api
api.customer
api.customer
service.customer
service.customer

92. package context
type Context interface {
Deadline() (deadline time.Time, ok bool)
Done() <-chan struct{}
Err() error
Value(key interface{}) interface{}
}

93. package context
type Context interface {
Deadline() (deadline time.Time, ok bool)
Done() <-chan struct{}
Err() error
Value(key interface{}) interface{}
}

94. package context
type Context interface {
Deadline() (deadline time.Time, ok bool)
Done() <-chan struct{}
Err() error
Value(key interface{}) interface{}
}

95. api
api
api.customer
api.customer
service.customer
service.customer

96. api
api
api.customer
api.customer
service.customer
service.customer
SEND
RECV
SEND
RECV
RECV
SEND
RECV
SEND

97. api api.customer service.customer
SEND
RECV
SEND
RECV
RECV
SEND
RECV
SEND
phosphor

99. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

100. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

101. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

102. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

103. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

105. API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns
API card-api card-processing cards transactions balance transaction-enrichment merchant feed-generator feed apns

110. Small
Simple
Easy to learn

111. Concurrency
Interfaces
Networking

112. Downsides?

113. Starting with
Microservices?

114. #WIDS
Thanks!
@mattheath
@getmondo

115. ATM: Thomas Hawk
Bank of Commerce: ABQ Museum Archives
IBM System/360: IBM
Absorbed: Saxbald Photography
Orbital Ion Cannon: www.rom.ac
Go Gopher: Renee French
Control Room: NASA
ATM Failure: George Redgrave
Credits