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Getting Into the Zero Downtime Deployment World
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Tugberk Ugurlu
September 16, 2016
Programming
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120
Getting Into the Zero Downtime Deployment World
Dev Day 2016 (Krakow, Poland)
Tugberk Ugurlu
September 16, 2016
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Transcript
Getting Into the Zero Downtime Deployment World Tugberk Ugurlu Redgate
Software @tourismgeek tugberkugurlu.com #ABBDevDay https://flic.kr/p/fNTDM1
#ABBDevDay https://flic.kr/p/HLRTPW Software Dev @ Redgate Human in Cambridge, UK
MVP @ Microsoft
@tourismgeek tugberkugurlu.com github.com/tugberkugurlu stackoverflow.com/users/463785/tugberk
What is This? #ABBDevDay https://flic.kr/p/cdvAaj
#ABBDevDay Example HTTP APIs v1 Example Android iPhone Example Android
Client Example Web Client Example HTTP APIs v1.1
Should I Care? #ABBDevDay https://flic.kr/p/e7oMGm
#ABBDevDay https://flic.kr/p/49FHd3
#ABBDevDay https://flic.kr/p/CTxCx
https://twitter.com/tourismgeek/status/580270772402393088 #ABBDevDay
Continuous Delivery #ABBDevDay https://flic.kr/p/bzG7ds
#ABBDevDay http://bit.ly/2cstlDK
#ABBDevDay http://zleek.com
LB zleek-0 zleek-1 zleek-n mongodb neo4j elasticsearch rabbitmq recipe-generation-worker-0 recipe-sync-worker-0
food-sync-worker-0 store-sync-worker-0 recipe-generation-worker-1 recipe-generation-worker-n recipe-sync-worker-n recipe-sync-worker-0 #ABBDevDay
#ABBDevDay https://gist.github.com/revett/99d8a5143c0bfeddfc92 Our Target
Our Scope #ABBDevDay
Scope of the Talk #ABBDevDay HTTP Services Web Sites
#ABBDevDay https://flic.kr/p/mRRFdH The Path and Guidance
Write Down the Deployment Strategy #ABBDevDay https://flic.kr/p/pd4X4A
#ABBDevDay
Script out the Deployment Strategy https://flic.kr/p/79EVn6
#ABBDevDay
Release Management #ABBDevDay https://flic.kr/p/fCbQWb
#ABBDevDay Octopus Deploy http://bit.ly/2d2ivzU
#ABBDevDay Docker Cloud http://bit.ly/2d2ivzU #ABBDevDay
True Staging Environment #ABBDevDay
example-api-v0-6786234 example-api- process example-api-v0-6327638 example-api- process Router v0.example.com
Blue-green Deployment http://martinfowler.com/bliki/BlueGreenDeployment.html #ABBDevDay
Router v0.example.com #ABBDevDay example-api-v0-6327638 example-api- process example-api-v0-6786234 example-api- process
Drain Requests #ABBDevDay https://flic.kr/p/79A7Db
Router v0.example.com #ABBDevDay example-api-v0-6327638 example-api- process example-api-v0-6786234 example-api- process
Router v0.example.com #ABBDevDay example-api-v0-6327638 example-api- process example-api-v0-6786234 example-api- process
SemVer Your Software http://www.tugberkugurlu.com/archive/versioning-software-builds-based-on-git-tags-and-semantic-versioning-semver #ABBDevDay
SemVer (semver.org) #ABBDevDay Patch No user facing changes Major Introducing
incompatible changes Minor Add functionality in a backwards- compatible manner 2.4.6
SemVer as Way of Application Versioning • Support 2 Major
versions of the HTTP Service, not 1, not 3. • Define a support policy for support lifetime for versions #ABBDevDay
Minor-Patch Releases • No breaking changes #ABBDevDay
example-api-v0-6327638 example-api-v0-7814219 example-api-v0-9528392 LB v0.example.com example-api- process example-api- process example-api-
process example-api-v0-6786234 example-api-v0-3266280 example-api-v0-8429842 example-api- process example-api- process example-api- process
DEMO https://github.com/tugberkugurlu/AspNetCoreSamples/tree/abbdevday2016/haproxy-zero-downtime-sample #ABBDevDay
HAProxy Config Reload http://engineeringblog.yelp.com/2015/04/true-zero-downtime-haproxy-reloads.html #ABBDevDay
Internal LB-1 LB-1 Internal LB-2 server1 server2 server3 server4 server5
server6 server7 server8 server9 server10 client client client client client client #ABBDevDay
Multiple Load Balancer Nodes http://robert.penz.name/386/howto-setup-a-haproxy-as-fault-tolerant-high-available-load-balancer-for-multiple-caching-web-proxies-on-rhelcentossl/ #ABBDevDay
#ABBDevDay http://robert.penz.name/386/howto-setup-a-haproxy-as-fault-tolerant-high-available-load-balancer-for-multiple-caching-web-proxies-on-rhelcentossl/
Major Releases • Breaking Changes • First Major Release •
Non-first Major Releases #ABBDevDay
example-api-v0-6327638 example-api-v0-7814219 example-api-v0-9528392 LB v0.example.com example Products example Products example
Products example-api-v1-2276168 example-api-v1-5677802 example Products example Products LB v1.example.com example-api-v1-7182721 example Products
Prefer Fast-forward Database Changes #ABBDevDay https://flic.kr/p/54a6xY
#ABBDevDay v1 v2 Id Make Model Colour 1 Renault Clio
Red 2 Mercedes GLA Black 3 Volkswagen Polo White 4 Toyota Yaris Yellow Id Make Model Colour 1 Renault Clio Red 2 Mercedes GLA Black 3 Volkswagen Polo White 4 Toyota Yaris Yellow
Do Not Override Client Side Assets #ABBDevDay
#ABBDevDay v1 v1.1
#ABBDevDay v1 v1.1
Be Aware of the Context #ABBDevDay
Be Aware of the Context • Cookies • Sessions •
Authentication Tokens #ABBDevDay
Sticky Sessions http://blog.haproxy.com/2012/03/29/load-balancing-affinity-persistence-sticky-sessions-what-you-need-to-know/ #ABBDevDay
Helpful Tools • Git (https://git-scm.com) • Travis CI (https://travis-ci.org) •
Octopus Deploy (https://octopus.com) • HAProxy (http://haproxy.org) • node-semver CLI (http://bit.ly/1PO6hvR) • Docker (https://docker.com) • Docker Cloud (a.k.a. Tutum, http://bit.ly/1RYYtl2) • SQL Server Data Tools (SSDT, http://bit.ly/1P7qETh) • DLM Automation Tools from Redgate (http://bit.ly/1VQ2rDm) #ABBDevDay
@tourismgeek github.com/tugberkugurlu linkedin.com/in/tugberk https://flic.kr/p/edfM1R