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
350
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
290
Extracting services from a monolith
janogonzalez
3
250
¿Después de 10 años, realmente entiendo esta industria?
janogonzalez
3
450
Microservices in Practice
janogonzalez
7
650
Two programmers in one
janogonzalez
1
160
The Bipolar Programmer
janogonzalez
4
590
Ruby for your two internal programmers
janogonzalez
4
240
Ruby for Java minds
janogonzalez
4
1.1k
How Ruby Programmed Me
janogonzalez
11
490
Other Decks in Programming
See All in Programming
Thank you <💅>, What's the Next?
ahoxa
1
590
Qiita Bash
mercury_dev0517
2
220
Ruby's Line Breaks
yui_knk
4
2.8k
Cursor/Devin全社導入の理想と現実
saitoryc
28
21k
Fiber Scheduler vs. General-Purpose Parallel Client
hayaokimura
1
280
Enterprise Web App. Development (1): Build Tool Training Ver. 5
knakagawa
1
120
fieldalignmentから見るGoの構造体
kuro_kurorrr
0
130
Serving TUIs over SSH with Go
caarlos0
0
540
GitHub Copilot for Azureを使い倒したい
ymd65536
1
300
読書シェア会 vol.4 『ダイナミックリチーミング 第2版』
kotaro666
0
110
M5UnitUnified 最新動向 2025/05
gob
0
120
RubyKaigi Dev Meeting 2025
tenderlove
1
1.3k
Featured
See All Featured
Thoughts on Productivity
jonyablonski
69
4.6k
A better future with KSS
kneath
239
17k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
45
9.5k
Optimizing for Happiness
mojombo
378
70k
Measuring & Analyzing Core Web Vitals
bluesmoon
7
410
Building Applications with DynamoDB
mza
94
6.4k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
21k
A Tale of Four Properties
chriscoyier
158
23k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
30
2k
Statistics for Hackers
jakevdp
798
220k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
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