DevOps: Python tools to get started

Transcript

1. 1.

   DevOps Python tools to get started

2. 2.

   DevOps is … “… development and operations teams work on

   software releases in tandem, rather than throwing code back and forth across a silo.”
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   Make no mistake DevOps is a culture In [1]: “tools

   make a culture” Out [1]: False
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   Background

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   Perspective Startup culture, but tools are useful everywhere

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   Carousell P2P Marketplace App iOS, Android (Web?)

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   Pony Powered Django + Django Rest Framework

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   Not too long ago 1 Technical Co-founder ! Edits code

   on production server Live reload
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   Moments ago 4 Engineers: iOS, Android, CTO, Backend + Infrastructure

   ! Every engineer somewhat involved with Backend code
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    TODO • Deploy • Monitor Make it easy to: •

    Break things Make it difficult to:
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    Deployment

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    Deployment options - Fabric + git / svn /… !

    - Salt / Ansible / Chef ! - Native packaging (.rpm, .deb)
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    Fabric (i) from fabric.api import env, run ! hosts =

    [‘app.server.com’] ! def deploy(): run(“git pull && … ”) fabfile.py
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    Fabric (ii) $ fab deploy [app.server.com] run: git pull &&

    … [app.server.com] out: [output]
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    Fabric: the good parts Simple, easy to start with !

    @parallel to speed up for multiple servers
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    Salt Configuration management, commonly used for server provisioning ! Chef,

    Puppet, etc
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    Salt + Git

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    Fabric + Salt + Git fab deploy salt “app*.server.com” …

    app1.server.com app2.server.com
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    TODO • Deploy • Monitor Make it easy to: •

    Break things Make it difficult to:
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    Monitor and Control

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    Controlling processes Tools: Supervisor, Circus Allows you to control and

    monitor your app processes
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    Supervisor (i) [program:my_app] command=python my_app.py

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    Supervisor (ii) $ supervisorctl status my_app RUNNING pid 7910, uptime

    01:36:44
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    Supervisor (iii) Supervisor exposes a XMLRPC interface Allows remote monitoring

    and control of processes
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    TODO • Deploy • Monitor Make it easy to: •

    Break things Make it difficult to:
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    Continuous Integration

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    Continuous Integration Popular CIs: Jenkins, TravisCI, CircleCI

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    http://buildbot.net/

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    Jenkins + Django

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    Automated Feedback

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    Done! • Deploy • Monitor Make it easy to: •

    Break things Make it difficult to:
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    All together now

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    Github Workflow Pull Request Continuous Integration Automatic Deployment

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    pull request Jenkins CI Test Deployment Report on Github salt

    [success] [fail]
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    Beyond Python Docker Vagrant Virtual Machines! (LXC) Containers!

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    Thanks! @victorneo (psst. we are looking for web devs)