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Packing skills to be a DevOps and why that’s a ...

Packing skills to be a DevOps and why that’s a good thing

Gave this talk at ThatConference on August 14th, 2013
Follow me on Twitter: @CodeStars

My current company hired me as a Software Engineer. Their software has organically grown over the past six years and it really looks like what you would expect, when you hear that a software system is that old. There was no real abstraction, no idea of services - nothing fancy.
I realized that if I wanted to change the software I had to start with the system architecture. Thus, I joined the infrastructure team where I learned a lot of new stuff as well as what it meant to be on call.

Ole Michaelis

August 14, 2013
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Transcript

  1. tests first know “the circle” different tests, are different TEST-DRIVEN-

    DEVELOPMENT tests first know “the circle” different tests
  2. you must walk through hell tests, tests, tests (BDD, Integration

    tests) branch by abstraction REFACTORING
  3. SOME HANDY SHELL KNOWLEDGE you should feel comfy in a

    terminal #protip: use a terminal in your daily work
  4. RISK MANAGEMENT how often does a problem occur? how much

    is the impact? what is the mean time to repair?
  5. 1ns

  6. 1ns 100ns ~ 0.1μs 10,000ns ~ 10μs 1,000,000ns ~ 1ms

    PACKET ROUNDTRIP CA TO NETHERLANDS
  7. http://nikic.github.io/2011/12/27/Dont-be-STUPID-GRASP-SOLID.html http://en.wikipedia.org/wiki/SOLID_(object-oriented_design) http://www.shutterstock.com http://icomoon.io/app/ http://apievangelist.com/2012/01/12/the-secret-to-amazons-success-internal-apis/ http://en.wikipedia.org/wiki/Structural_pattern http://en.wikipedia.org/wiki/Creational_pattern http://en.wikipedia.org/wiki/Behavioral_pattern http://www.eecs.berkeley.edu/~rcs/research/interactive_latency.html http://bfwa.com/pitfalls/

    http://farm9.staticflickr.com/8491/8344781525_5787255ec2_z.jpg http://docs.hostedgraphite.com/_images/sample_dashboard_conc_users_advanced.png http://oss.oetiker.ch/rrdtool/gallery/btdmd8.png http://www.wadsam.com/wp-content/uploads/2012/11/stock-exchagne.jpeg http://s3.amazonaws.com/crunchbase_prod_assets/assets/images/original/0018/2843/182843v2.png http://2.bp.blogspot.com/-t2FW5rx_yn0/TxVwhmqAXgI/AAAAAAAAA7s/DSdFmMZ5ecM/s1600/trading-floor.jpg http://en.wikipedia.org/wiki/Mutual_exclusion Thanks to all the people helped me so much! Elena Ingo Nils Fridel Spring Jimdo! Sources: