Full Stack Serverless Applications @ MidwestJS

Tools like Amazon's Lambda and API Gateway are allowing us to create "serverless" systems. Massive on demand scalability, and no servers to worry about. At Bustle we are taking full advantage of this with our new infrastructure. On the backend, authorization, server side rendering of javascript, database creates/updates, and search indexing are all handled by AWS Lambda. On the front end we are serving single page javascript applications, APIs, and static content all through API Gateway. Bringing these two technologies together has given us a truly instant-on platform without servers. And the best part? It is costing orders of magnitude less than our old EC2 based system. I'll walk attendees through our entire system so they can use some of these tools themselves. I'll also cover some common mistakes that are easy to make. Lastly, I'll talk about a few open source tools making it even easier to build these types of systems.

Presented on 8/12 at MidwestJS in Minneapolis, MN

Transcript

1. Full Stack Serverless
2. Steve Faulkner @southpolesteve
5. Director of Platform Engineering @ Bustle
7. Full Stack Serverless
8. hype! serverless 101
 why? why not? serverless @ bustle tools
12. The people who are serving websites on Lambda or something are not only doing it wrong, they are wasting money while locking themselves in to an architecture that doesn't fit their app - @scrollaway on HN
13. “Serverless”
14. Backend as a Service
17. Functions as a Service
18. FaaS
19. run code only when I ask
20. pay only when code is actually running
21. don’t bother me with details about how it gets run
22. web programming
23. request response
24. yourApp()
25. app.get(‘/‘,(req,res) => {
 // DO STUFF
 res.end(‘stuff done!’) })
30. FaaS + Routing
31. Lambda + API Gateway
32. Lambda
34. write code zip upload fn()
35. node,java,python
36. node shim + rust,go, haskell,etc
37. function(event,context,cb){ cb(null, ‘Hello World’) }
38. versioning aliases RAM + CPU logging event sources
39. API Gateway
41. click around a lot
42. cache/throttle authorization api keys stages logging/metrics custom domains ssl swagger import/export
43. Lambda <-> API gateway spolier alert: tooling
44. why?
46. node docker ember “serveless” javascript
47. happiness building shipping
48. ops
49. startup ops: 
 heroku.down? getLunch()
50. not startup ops: 
 let’s have a plan
51. “serverless” ops: 
 LOL WUT SERVERS?
52. “serverless” ops: 
 LOL WUT SERVERS?
53. yes… there are still servers…
54. “serverless” ops: 
 let’s still have a plan
55. benchmark
 fallbacks load testing
 less ops :)
56. happiness building shipping
57. 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
59. less changes between 1 RPS and 1000 RPS
61. 10-20 million/day
62. ~1s deploys
63. $$$$
64. events API
65. ec2 ~$2500/mo
66. lambda api gateway ~$400/mo
67. why not?
68. “rose garden filled with thorns” - Taylor Swift
69. lock in
70. 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)
71. cold functions
72. ~3.5 hours - Eric @ iopipe.com
73. long running tasks
74. 6 min max
75. s3(3GB) Lambda Kinesis Firehose Elasticsearch
76. testing
77. test in the cloud
78. ssl
79. serverless @ bustle
80. frontend
82. API Gateway S3 Lambda html + js
83. backend
85. API Gateway Lambda JSON dynamodb redis
86. tooling
87. serverless framework node-lambda apex
89. npm install -g shep@beta
90. JavaScript Only no CF,terraform
 swagger
 webpack builds
 environments mapping templates
91. shep new my-api shep generate endpoint shep deploy production
92. github bustlelabs/shep
94. we are hiring @ bustle!
95. say hi if you’re in philly!
96. questions?