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What Do All Of These Words Mean? A DevOps Glossary
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Noah Kantrowitz
October 17, 2018
Programming
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What Do All Of These Words Mean? A DevOps Glossary
Lightning talk from DjangoCon US 2018 in San Diego
Noah Kantrowitz
October 17, 2018
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Transcript
Noah Kantrowitz – @kantrn – coderanger.net What Do All Of
These Words Mean? A DevOps Glossary
Noah Ridecell Moving On
Virtual Machine A server but running on "simulated" hardware
VM Image The content of the hard disk for a
future VM
Vagrant A tool for making VMs on your laptop
Cloud Someone else maintains the physical hardware
AWS Amazon Web Services, a cloud provider
EC2 Elastic Compute Cloud, AWS makes you VMs
S3 Simple Storage Service, AWS stores your files
CloudFormation Create and manage AWS stuff using YAML files instead
of clicking in the web UI
Terraform Create and manage things on lots of clouds without
clicking in the web UI
GCE Google Cloud Engine, AWS but by Google
Azure AWS but by Microsoft (yes, you can run Linux)
OpenStack AWS except you also run the physical hardware too
Container A process running with a bunch of security options
Container Image A tarball containing the files a container will
see (and some metadata)
Docker A tool for creating container images and starting containers
Dockerfile A file containing instructions for creating a container image
Kubernetes Big, complex, awesome thing for managing lots of containers
Docker Swarm Big, complex, less awesome thing for managing lots
of containers
Docker Compose Small, complex thing for managing a few containers
Orchestration Coordinating multiple containers together along with storage and networking
they need
Resource Scheduling Working out which server to run a container
on given multiple options
Serverless Tool(s) for making web apps/APIs with less boilerplate
CI Continuous Integration, except not that. Running tests automatically on
every commit
CI Pipeline Dividing tests up into multiple groups and then
chaining them together
Jenkins Popular (and often infuriating) CI tool
Travis Also a popular CI too, but you don't have
to run it yourself and free for open source
CD Continuous Delivery or Deployment, if the tests pass then
it gets deployed
Big Data Running queries against more data than will fit
on one server (~>= 10TB)
Hadoop Popular suite of tools for Big Data
Spark Hadoop component used for running the fancy queries
ETL Extract Transform Load, a common Big Data query pattern
InfoSec Information Security, keeping your data safe
Black Hat Using InfoSec for evil
White Hat Using InfoSec for good
Red Team White hat that attacks systems (with
permission)
Blue Team White hat that defends systems
Purple Team Both!
Hash One-way function, given the output you can't get the
input
Encryption Reversible, but only with the right key
Thank You Noah Kantrowitz @kantrn coderanger.net