Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Containerizing your monolith
Search
Jano González
October 30, 2019
Programming
0
390
Containerizing your monolith
My presentation @ LISA19
Jano González
October 30, 2019
Tweet
Share
More Decks by Jano González
See All by Jano González
Migrando a Microservicios
janogonzalez
1
310
Extracting services from a monolith
janogonzalez
3
250
¿Después de 10 años, realmente entiendo esta industria?
janogonzalez
3
470
Microservices in Practice
janogonzalez
7
670
Two programmers in one
janogonzalez
1
180
The Bipolar Programmer
janogonzalez
4
610
Ruby for your two internal programmers
janogonzalez
4
260
Ruby for Java minds
janogonzalez
4
1.1k
How Ruby Programmed Me
janogonzalez
11
500
Other Decks in Programming
See All in Programming
Understanding Ruby Grammar Through Conflicts
yui_knk
1
100
AIのメモリー
watany
13
1.4k
DataformでPythonする / dataform-de-python
snhryt
0
170
The State of Fluid (2025)
s2b
0
150
コーディングは技術者(エンジニア)の嗜みでして / Learning the System Development Mindset from Rock Lady
mackey0225
2
460
LLMは麻雀を知らなすぎるから俺が教育してやる
po3rin
3
2.1k
Claude Code と OpenAI o3 で メタデータ情報を作る
laket
0
130
CLI ツールを Go ライブラリ として再実装する理由 / Why reimplement a CLI tool as a Go library
ktr_0731
3
1.1k
それ CLI フレームワークがなくてもできるよ / Building CLI Tools Without Frameworks
orgachem
PRO
17
3.8k
QA x AIエコシステム段階構築作戦
osu
0
270
CEDEC 2025 『ゲームにおけるリアルタイム通信への QUIC導入事例の紹介』
segadevtech
3
860
実践 Dev Containers × Claude Code
touyu
1
180
Featured
See All Featured
[RailsConf 2023] Rails as a piece of cake
palkan
56
5.8k
The Straight Up "How To Draw Better" Workshop
denniskardys
235
140k
Navigating Team Friction
lara
188
15k
Java REST API Framework Comparison - PWX 2021
mraible
33
8.8k
Designing Experiences People Love
moore
142
24k
The Language of Interfaces
destraynor
158
25k
A designer walks into a library…
pauljervisheath
207
24k
It's Worth the Effort
3n
186
28k
Intergalactic Javascript Robots from Outer Space
tanoku
272
27k
Testing 201, or: Great Expectations
jmmastey
45
7.6k
GitHub's CSS Performance
jonrohan
1031
460k
Designing for humans not robots
tammielis
253
25k
Transcript
Containerizing your monolith Jano González (@janogonzalez)
Introduction
What’s SoundCloud
> 200M Tracks > 20M Creators Many SoundCloud Rappers What’s
SoundCloud
2017-2018 Migration Keep moving Motivation
What’s the balance? Motivation
Our migration to microservices The monolith Containerizing the monolith Conclusion
Contents
Our migration to microservices
$ rails new soundcloud How we started
Around 2012
Around 2012
Around 2012
Around 2012
After
After
But what about deployment?
Component Environment Zone Deployment Our abstractions
Deployment The process
The monolith
Track User Playlist The monolith Core entities
360 Chef provisioned bare-metal machines Rails 2.3 Capistrano deployment The
monolith The technology
The monolith The architecture Public API Internal API Public API
Strangler Internal API caching/ strangler Another BFF Many microservices Public Web Workers
The monolith The components Public API MoshiMoshi (Internal API) Public
Web Assets MoshiMoshi Comments (Internal API) Workers Cron Shell Migration
The monolith The hosts component statsd-exporter mtail statsd passenger- exporter
…
Utilization Deployment Lack of confidence The monolith The issues
Containerizing the monolith
Throw it into Kubernetes
Congrats, your monolith is a microservice now
Thank You!
1.5 Engineers 1 year until the last bit was cleaned
up The project
The first milestone
Docker development container Tests on GoCD The first milestone
The proof of concept
First staging component The proof of concept Does it even
work?
The proof of concept PR O BLEM ! Init script
Nginx Passenger Passenger Process Rails App ??? Where are my env variables?
The proof of concept Env variables with The Perl Hack™
SO LU TIO N
Productionizing
Deployment Monitoring Logs Productionizing Does it run where it matters?
Productionizing Anatomy of a traffic serving pod component statsd statsd-exporter
passenger- exporter mtail twemproxy twemproxy-cu twemproxy- exporter init
Don’t choke service discovery Be allocatable Productionizing Sizing the pods
CPU units for main container Passenger processes Productionizing Sizing the
pods 3 16
Productionizing PR O BLEM ! Stdout v/s the log metrics
exporter Component STDOUT Log aggregator File??? Mtail
Productionizing Mtail with The Rotatelogs Hack™ SO LU TIO N
Productionizing Public API
Orchestration Productionizing Public API
Productionizing Public API PR O BLEM ! DNS latency and
our excessive usage Component Service Service Service
Productionizing Public API CoreDNS and the DNS Hack™ SO LU
TIO N
Productionizing Internal API
Highest throughput Productionizing Internal API
Productionizing Internal API PR O BLEM ! Latency was too
high
Productionizing Internal API Optimize GC and make cheaper SQL queries
SO LU TIO N
Productionizing Internal API PR O BLEM ! Errors spikes during
deployment
Productionizing Internal API The preStop Trick™ SO LU TIO N
Productionizing Internal API PR O BLEM ! Errors spikes during
deployment (still???)
Productionizing Internal API The Pre Start Trick™ SO LU TIO
N
The rest
• Workers • Cron jobs • Shell / Migration hosts
• Cleanup! The rest
Finishing
Current status
On-prem Cloud Current status Number of pods ~1000 ~140
On-prem RPS Cloud RPS Current status Traffic 25K 3K
Current status Many deploys
Conclusions
One Infrastructure One Delivery Process Conclusions What we solved
Step by step Controlled rollouts Managing expectations Conclusions How we
did it
Improved utilization Increased confidence Enabling new initiatives Conclusions Benefits
Assess current progress Evaluate costs and benefits Conclusions Should you
do it?
Thank You!
@janogonzalez https://soundcloud.com/janogonzalez