your goat anti-fragiled my snowflake! demystifying devops jargon
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Your Goat Anti-Fragiled My Snowflake!
Clinton WolfeDevOps Practice Lead
Demystifying DevOps Jargon
id clintoncwolfe
• DevOps Practice Lead at omniti.com
• We do web & services ops & development
• Chef architect, Ansible engineer, “devops consultant”
• author of various bits of tooling & glue
• we're hiring!
A Quick Disclaimer
contribute your experiences at
http://devopsdictionary.com
Our perceptions of meaning may differ
via: rivervalleyadventure
A DevOpsBestiary!
A DevOpsBestiary!
Goat
A DevOpsBestiary!
Goat
Chaos Monkey
A DevOpsBestiary!
Goat
Chaos Monkey
Yak
Shaving
A DevOpsBestiary!
Goat
Cattle
Chaos Monkey
Yak
Shaving
A DevOpsBestiary!
Goat
Cattle
Unicorn
Chaos Monkey
Yak
Shaving
A DevOpsBestiary!
Goat
Cattle
Unicorn
Chaos Monkey
Yak
Shaving
Canaries
A DevOpsBestiary!
Goat
Cattle
Unicorn ELK
Chaos Monkey
Yak
Shaving
Canaries
A DevOpsBestiary!
Goat
Pets
Cattle
Unicorn ELK
Chaos Monkey
Yak
Shaving
Canaries
Goat• flim_flammer via imgur
GoatA highly capable individual who tends to ignore
the silo boundaries of an organization
Coined By: Michael Ducy
Pets vs Cattle
• HauntedSpit via imgur • SpilledPorpoise via imgur
PetsNodes / servers / instances that are lovingly
hand-maintained, with long lives
CattleNodes / servers / instances that are easily
replaced; created and destroyed via automation
Pets vs Cattle“We’ve automated everything but the database
servers; the DBAs treat them as Pets.”
Coinage:
Originally from Bill Baker of Microsoft,
popularized by Gavin McCance of CERN
Unicorn
•via Amazon
Unicorn(1) – a startup that reached $1Bn in value
Unicorn(1) – a startup that reached $1Bn in value
(2) - a company where DevOps “just works”
Unicorn(1) – a startup that reached $1Bn in value
(2) - a company where DevOps “just works”
(3) - an impossible-to-satisfy job description
Canaries• via Don Blake
CanariesDuring deployment, a small group of nodes that
receive the update first, and are watched closely
before rolling out to all nodes
CanariesDuring deployment, a small group of nodes that
receive the update first, and are watched closely
academia.dk
CanariesDuring deployment, a small group of nodes that
receive the update first, and are watched closely
Yak Shaving•via Daniel Bogan
Yak ShavingStarting to solve a problem, only to find another
problem that must be solved, recursing forever.
May or may not have been neccesary.
Chaos Monkey•via picpost
Chaos MonkeySoftware that randomly kills running instances
as part of resiliency testing
Elk•photo: Linda Tanner
ELKElasticsearch + Logstash + Kibana - an open-
source log aggregator / visualizer stack
•via segway NZ
ABBRVs(abbreviations)
CAMS
ABBRVs(abbreviations)
TLA
CAMS
ABBRVs(abbreviations)
TLA
CAMS
CI
ABBRVs(abbreviations)
TLA
CAMSCM
CI
ABBRVs(abbreviations)
TLA
DSL CAMSCM
CI
ABBRVs(abbreviations)
TLA
DSL CAMSCM
CI
CD
ABBRVs(abbreviations)
CAMSvia junauto
CAMSa statement of the components of DevOps:
• Culture
• Automation
• Measurement
• Sharing
DSLvia wikimedia commons
DSLDomain Specific Language
a syntax and command set designed so that
users can write in their conceptual model
directory '/opt/my-app'
template '/opt/my-app/cfg.yaml' do source 'alternate-cfg.yaml'end
TLA
•via summitaudio
TLAThree Letter Acronym
Any acronym with 3 letters
CMvia John Kane and Pilobolus
CMConfiguration Management:
the class of tools including Chef, Puppet, Ansible, SaltStack,
cfengine2, etc
CIvia John Kane and Pilobolus
CI1. Continuous Integration – running
tests whenever a commit occurs
CI1. Continuous Integration –running
tests whenever a commit occurs2. Continuous Improvement – a
culture of looking for ways to improve processes over time
CDvia John Kane and Pilobolus
CD1. Continuous Delivery – building
software packages whenever a commit occurs
CD1. Continuous Delivery – building
software packages whenever a commit occurs
2. Continuous Deployment – installing the software to production whenever a commit occurs
•photo: coolest-toys
Potpourri!
Potpourri!
Bikeshedding
Potpourri!
Anti-Fragile
Bikeshedding
Potpourri!
Anti-Fragile
Bikeshedding
Idempotency
Potpourri!
Anti-Fragile
Bikeshedding
Idempotency
Red/Green/Refactor
Potpourri!
Anti-Fragile
Snowflake Bikeshedding
Red/Green/Refactor
Idempotency
Red / Green / Refactor
via: cbc.ca
Red / Green / Refactorworkflow rhythm when developing under TDD
1. Write failing tests (red terminal output)
2. Write the least code possible to make the
code pass (green terminal output)
3. Clean up the code internally, while ensuring
the tests still pass (refactor)
Snowflake•via: evolvemovement
Snowflakea node that has had manual changes applied
outside of automation
Martin Fowler, 2012
Bikeshedding
via time-to-craft.co.uk
Bikesheddingto argue at length over a decision that is, in the
end, arbitrary
Coinage:
From the BSD community (mid 90's?): arguing
over what color to paint the bikeshed while the
house is not yet finished
(Computer Jargon File)
Anti-Fragilevia dontthrowmypackage
Anti-Fragilethe property of a system designed such that
resiliency increases with damage
From Nassim Taleb and Jez Humble
Idempotency
0 x 0 = 01 x 0 = 0
Idempotency when a tool will only make a change if it
needs to.
From Abstract Algebra
(a kind of Mathematics)
•photo: Howard Ignatius
* Ops
* Ops
CoffeeOps
* Ops
HugOps
CoffeeOps
* Ops
ChatOps
HugOps
CoffeeOps
* Ops
DevOps
ChatOps
HugOps
CoffeeOps
CoffeeOps•via goodneighbors
CoffeeOpsa series of informal meetups at coffeeshops, etc
to talk DevOps
CoffeeOpsa series of informal meetups at coffeeshops, etc
to talk DevOps
Started by Jennifer Davis in 2013coffeeops.org
Start one in your area!
HugOps•via starwarsdaily
HugOpsa meme reflecting empathy among engineers,
especially after an incident, disagreement, or
personal tragedy
Example Usage:
@clintoncwolfe sorry to hear about your talk
going so badly #hugops
ChatOps•via wikimedia commons
ChatOpsusing your text chat tool as an interface to your
tooling, as well as a log of work
Appears to have emerged from GitHub in 2013,
Jesse Newland - ChatOps at GitHub
DevOps•via wikimedia commons
DevOpsthe DevOps that can be spoken of
is not the true DevOps
Patrick DeBois, 2009 DevOps Days Ghent
contribute at
http://devopsdictionary.com
Ask Me Anything
Win a Goat!
http://devopsdictionary.coma wiki for these words
@clintoncwolfe