From Zero to DevOps Superhero: The Container Edition (JenkinsWorld SF)

From Zero to DevOps
Superhero: The Container
Edition
Jessica Deen

What to expect in the
next
45 minutesBefore we begin…
Disclaimer

This session was
designed to…
• Get you thinking
• Get you excited
• Show you what’s possible
• Offer resources to learn more

© 2019 All Rights Reserved. 4
Life runs on code

Source
https://informationisbeautiful.net/visualizations/million-lines-of-code/
Urban traffic control system
5 million lines of code
Artificial pancreas
160K lines of code
Life runs on code …
Space shuttle
400K lines of code
Luxury car
120 million lines of code

Intelligent vehicle
Smart city
Smart devices
Digital life
Intelligent experiences
Digital factory
Smart home68
Connected retail
Modern life runs on code …

Intelligent vehicle
Smart city
Smart devices
Digital life
Intelligent experiences
Digital factory
Smart home
Connected retail
68
… and Waffles!

D e v e l o p e r D e v e l o p e r D e v e l o p e r

O p e r a t i o n s O p e r a t i o n s O p e r a t i o n s

IT Stress Points
- [ ] -
Security InnovationEfficiency

- Donovan Brown
“DevOps is the union of people,
process, and products to enable
continuous delivery of value to our
end users.”
What is DevOps?

Why Containers?
Developers
Enable ‘write-once, run-anywhere’
apps
Enables microservice architectures
Operations
Portability
Standardization
Abstraction
Higher compute density
Scale
DevOps

What is a
container?

Not a virtual machine.
Not a real thing.
An application delivery mechanism with
process isolation.
Based on several Linux kernel features.

Virtualization vs.
Containerization
Infrastructure
Host OS
Docker
Bins/Libs Bins/Libs Bins/Libs
App A App B App C
Container
Infrastructure
Hypervisor
Bins/Libs
App A
Guest OS
Bins/Libs
App B
Guest OS
Bins/Libs
App C
Guest OS
VM
Infrastructure
Host OS
Hypervisor
Bins/Libs
App A
Guest OS
Bins/Libs
App B
Guest OS
Bins/Libs
App C
Guest OS
VM

Refresher on
container layers
From: Alpine:3.8
f61792ba8979
a7183fb762a8
d31af33eb855
c220123c8472
d7b1189bf667
91e49dfb1179
Container Layer Read / Write
Image layers
Read only

The Container Advantage
Fast
iteration
Agile
delivery
Immutability Cost
savings
Elastic
bursting
Efficient
deployment
For ITFor
developers

F U N T I M E
DEMO

What just happened?
Kubernetes Pipeline
Kubernetes Repository
Build
Package
Deploy

Features Include:
- Self healing
- Automatic Bin Packing
- Service Discovery
- Load Balancing
- Secret Management
- Automated roll backs and roll
outs
- Horizontal Scaling
Open source container
orchestrator.
Designed to automate
deployment, scaling, and
management of applications.
What is
Kubernetes?

Streamlined Kubernetes
development.
Simplifies Helm.
Release Automation
The defacto Kubernetes
package manager.
Powered by a template engine.
Kubernetes is hard.
Kubernetes is complex.
Let’s simplify.

K.I.SS
Keep It Super
Simple

“The steps you take don't have to be big,
they just have to take you in the right
direction.” // Jemma Simmons

What are my main
objectives?

What are my indicators for
those objectives?

What will my pipeline
look like?• Compile
• Build/Push
• Scan
• Deploy to Dev
• Test/Gates/Etc.
• Promote to staging > QA > Prod
• Private Package Feed
• Private Repository
• XRay, Aqua
• CI/CD - Azure Pipelines, Codefresh,
Jenkins, Travis CI, etc.
• Selenium, WhiteSource Bolt, etc
• CI/CD - Azure Pipelines, Codefresh,
Jenkins, Travis CI, etc.

The foundation is the
same.

Does this add value, or
does this add unnecessary
complexity?

- [ ] -
Kubernetes Best
Practices
Build small
containers
- Multistage builds
Application
architecture
- Use Namespaces
- Helm charts
- RBAC
Implement health
checks
- Liveness / Readiness
Probes

Kubernetes Best
Practices
Set requests
and limits
Be mindful of
your services
- Map external
services
- Don’t rely on
load balancers

I am Jessica Deen
I am here because I love technology and community.
I focus heavily on Linux, OSS, DevOps and
Containers.
I love Disney and CrossFit / Fitness.
No relation to James Dean.
You can find me online @jldeen on Twitter, Instagram,
and GitHub.

aka.ms/jldeen/jwsf2019 SEARCH

From Zero to DevOps Superhero: The Container Edition (JenkinsWorld SF)

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From Zero to DevOps Superhero: The Container Edition (JenkinsWorld SF)