"Roll out" - Code deployments that do not suck

How comfortable are you when deploying your code?
Is your deployment process streamlined and automated?
Can you deploy to multiple servers?
How do you deal with database migrations?
In this talk we will go over some of the options available and the challenges you will be facing while trying to setup frictionless deployments.

Transcript

1. ROLL OUT
   Code Deployments that do not suck
   Srdjan Vranac // code4hire.com // @vranac
   

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2. business owner, developer, consultant, mercenary,
   writing terrible code that performs exceptionally,
   wrangling elePHPants and Pythons, obsessed with
   process automation, interested in continuous
   integration and delivery, clean code, testing, best
   practices and distributed systems
   

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3. WARNING!
   

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4. DOCKER?

   NO
   

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5. WHO ARE YOU?
   

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6. STRIVE FOR BETTER
   

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7. CAN YOU…?
   

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8. AS GOOD AS
   

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9. ELEMENTS OF DEPLOYMENT
   • System deployment
   • Application deployment
   • Configuration deployment
   • Database deployment
   

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10. SYSTEM DEPLOYMENT
    

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11. APPLICATION DEPLOYMENT
    

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12. CONFIGURATION DEPLOYMENT
    

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13. DATABASE DEPLOYMENT
    

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15. MANUAL DEPLOYMENT
    

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16. PUSH TO DEPLOY
    #!/bin/sh
    git --work-tree=/var/www/domain.com --git-dir=/var/repo/site.git checkout -f
    git remote add live ssh://user@mydomain.com/var/repo/site.git
    

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17. ANSIBLE OR SIMILAR
    

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18. FABRIC
    from fabric.api import *

    from time import strftime, gmtime

    

    env.forward_agent = True

    env.roledefs = {

    'production': ['ubuntu@xxx.xxx.xxx.xxx'],

    }

    WEBSITE_PATH = "/var/www/project"

    

    def _deploy_server(version):

    with cd(WEBSITE_PATH):

    run('git fetch')

    run('git reset --hard %s' % version)

    

    @notify

    @task

    def deploy():

    time = strftime("%Y-%m-%d-%H.%M.%S", gmtime())

    tag = "prod-%s" % time

    local('git checkout master')

    local('git tag -a %s -m "Prod"' % tag)

    local('git push --tags')

    env.roles=['production']

    execute(_deploy_server, tag)

    

    @notify

    @task

    def rollback(num_revs=1):

    with cd(WEBSITE_PATH):

    run('git fetch')

    tag = run('git tag -l prod/* | sort | tail -n' + \

    str(1 + int(num_revs)) + ' | head -n1')

    run('git checkout ' + tag)
    

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19. MIGRAINES AND MIGRATIONS
    • Flyway
    • Liquibase
    • c5-db-migration
    • dbdeploy
    • mybatis
    • MIGRATEdb
    • migrate4j
    • dbmaintain
    • AutoPatch
    

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20. CONTINUOUS D*
    

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21. FULL AUTO?
    YOU NEVER GO FULL AUTO
    

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22. YOU ARE PAID TO
    MAKE THINGS HAPPEN…
    FRICTIONLESSLY
    

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23. THANK YOU!
    QUESTIONS?
    THE END
    

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