Hitchhiker's Guide to Serverless @ QCon London

Transcript

1. The Hitchhiker’s Guide to “Serverless” JavaScript
2. Steve Faulkner @southpolesteve
5. Director of Engineering
6. “Serverless”
8. “Serverless”
9. there are still servers…
10. servers platforms!
11. * as a Service
12. Database-aaS Caching-aaS Logging-aaS Metrics-aaS Servers-aaS
13. business logic?
14. Functions-aaS
15. myApp(request) #=> response
19. Lambda + API Gateway
20. Functions-aaS + Routing-aaS
21. $ per request
22. scales magically*
23. Lambda
24. write code zip upload function()
25. node java python C#
26. shim + rust/go/haskell
27. function(event,context,cb){ cb(null, ‘Hello World’) }
28. versioning aliases RAM + CPU logging non-http events
29. API Gateway
30. swagger or click a lot
31. cache/throttle authorization api keys logging/metrics custom domains ssl
33. 10-20 million calls per day
34. < $$$
36. frontend
38. API Gateway S3 Lambda(SSR) html + js
39. Ember
40. Ember Riot
41. Ember Riot Preact
42. why preact?
43. components simple small
44. backend
45. graphiql.bustle.com
46. API Gateway Lambda JSON dynamoDB redis*
47. Ruby
48. Ruby JS (REST)
49. Ruby JS (REST) Purescript
51. Ruby JS (REST) Purescript JS (GraphQL)
52. why graphQL?
53. graphiQL
54. types
55. field resolution
56. dataloader
57. why serverless?
58. ops
59. #noops
60. #noops
61. benchmarks
 fallbacks load testing monitoring
 #lessops
62. scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale scale
63. 1 -> 1000 rps
64. 1000 -> 0 rps
65. iteration
66. single function deployments
67. $$$$
68. events API
69. ec2 ~$2500/mo
70. lambda api gateway ~$400/mo
71. why not?
72. lock in
73. const express = require(‘express’) const fn = require(./lambda-fn/) const app = express() app.get('/', (req, res) => { fn.handler(null, null, (err, result) => { res.json(result) }) }); app.listen(3000)
74. cold functions
75. const data = loadBigData() // Takes 15s module.exports.handler = function(e,ctx,cb){ processBigData(data, cb) }
76. long tasks
77. 5 min max
78. s3(3GB) Lambda Kinesis Firehose Elasticsearch
79. testing
80. test in the cloud?
81. tools!
82. serverless framework node-lambda apex claudia.js
84. npm install -g shep
85. JavaScript Only no CF
 swagger
 webpack
 environments
86. shep new my-api shep generate endpoint shep deploy production
87. questions? Steve Faulkner @southpolesteve