heroku features that we love · heroku review apps - lifecycle and caveats set parent app app.json...
TRANSCRIPT
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HEROKU FEATURES THAT WE LOVE
David Hrachovy, PRIMEHAMMER
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HEROKU
HOW IT WORKS
▸ Ruby app
▸ Gemfile
▸ on Github
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HEROKU
HOW IT WORKS
OR
OR AUTOMATIC DEPLOYS
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HEROKU
HOW IT WORKS
Heroku Dynos Postgres Redis
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NO INFRASTRUCTURE MAINTENANCE
FOCUS ON DELIVERING VALUE
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HEROKU
IN SHORT
▸ Founded in 2007 in San Francisco
▸ Acquired by Salesforce in 2010
▸ Region in Frankfurt (runs on AWS)
▸ Over 150 Elements (addons)
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HEROKU
HEROKU ELEMENTS
▸ Single Sign On
▸ Creates ENV var
▸ Multiple plans, one billing
▸ May become expensive
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YOU CAN START SMALL
▸ Hobby web dyno &7
▸ Postgres - Hobby Basic $9 (10M rows)
▸ Sentry - Free (10,000 events)
▸ Papertrail (10MB/day)
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SELECTED FEATURES
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HEROKU
PIPELINE
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HEROKU
PIPELINE PROMOTION
▸ Slug is a bundle of your source, fetched dependencies, the language runtime, and compiled/generated output of the build system - ready for execution.
▸ Moves slug to the next stage, avoids rebuilding
▸ Promotion not for stateful builds (hardcoded keys)
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HEROKU
REVIEW APPS - GITHUB
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HEROKU
REVIEW APPS - DASHBOARD
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HEROKU
REVIEW APPS - LIFECYCLE AND CAVEATS
▸ Set parent app
▸ app.json stored in your repository add-ons, env var inheritance, post-deploy scripts
▸ Auto destroy in 1,2,5,30 days
▸ Some add-ons don’t support review apps
▸ Gotchas: domains, expensive/unsupported add-ons
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HEROKU
APP.JSON EXAMPLE
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HEROKU
CONTINUOUS INTEGRATION
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HEROKU
RELEASE PHASE
▸ Allows to run certain tasks before a new release of the app is deployed
▸ After app build, pipeline promotion, setting config var
▸ No more “heroku run rake db:migrate”
▸ Procfile:
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HEROKU
DEPLOYMENT STEPS
1. Push code & deploy
2. Build -> slug
3. Release script (defined in Procfile)
4. Post-deploy script for Review app (defined in app.json)
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HEROKU
AUTOSCALING
▸ Horizontally scales web dynos based on response time
▸ Min-max
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HEROKU
AUTOSCALING
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HEROKU
AUTOSCALING
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HEROKU
SUMMARY
▸ Pipeline, Review apps, Release Phase, Autoscaling
▸ More features: Private Spaces, Heroku Shield for HIPPA, Buildpacks
▸ It’s productive but not suitable for everyone due to pricing
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THANK YOU. QUESTIONS?