Making your app soar without a container manifest

1. Making Your App Soar
Without a Container
Manifest

2. Jason (Jay) Smith
@thejaysmith

3. ● Defining Environments
● Build Packs
● Tekton
● Demo Time
● Q&A
Agenda

4. ❏ Find an old computer
❏ Install Linux
❏ Install Apache, MySQL, PHP
❏ Install PHP Plugins
❏ Configure Apache
❏ Create VirtualHosts
❏ Create New User
❏ Create Folder
❏ Open up firewall and port
Remember all the work you
had to do just to get a server
going?

5. Virtual machine
OS
Dependencies
Application Code
Hardware
Bare-metal server
OS
Dependencies
Application Code
Hardware
VMs Raised the abstraction

6. VMs and IaaS

7. Virtual machine
OS
Dependencies
Application Code
Hardware
Bare-metal server
OS
Dependencies
Application Code
Hardware
Container
OS
Dependencies
Application Code
Hardware
Containers raised the abstraction even more!

8. Nodes
Master
Kubernetes abstracts away infrastructure

9. Photo courtesy of https://n8d.at/

10. ● A buildpack is a set of executables that inspects your app source
code and creates a plan to build and run your application
● TL;DR, Build containers without a dockerfile
● Originated at CloudFoundry
● CNCF Project
● Great for CI/CD

11. Buildpacks allow developers to
take advantage of the benefits
of containers, without needing
to understand them.
Source code OCI
Container

12. CNCF
Incubated
Project

13. npm-install
/bin/detect
/bin/build
printf ‘hello world’
if 1+1==2
printf “I love math”
else
…
end
Builder (OCI container)
npm-install
/bin/detect
/bin/build
npm-install
/bin/detect
/bin/build
Buildpacks
Buildpacks are run in a container
called a builder.

14. Definition: "builder"
● An OCI (Docker) image.
● A composition of buildpacks, groups, and lifecycle binaries.
● The "platform" (e.g., Cloud Build, Tekton, pack) provides the user source to the
builder image and invokes it to get an application image built.
% pack suggest-builders
Suggested builders:
Google: gcr.io/buildpacks/builder:v1
Ubuntu 18 base image with buildpacks for .NET, Go, Java, Node.js, and Python
Paketo Buildpacks: gcr.io/paketo-buildpacks/builder:tiny
Tiny base image (bionic build image, distroless run image) with buildpacks for Golang
…

15. ● An ordered list of buildpacks that operate as a group.
● Roughly equivalent to "how do I build this language?"
Node.js
NPM
runtime gcp-build npm-install entrypoint devmode
Node.js
Yarn
runtime gcp-build yarn-install entrypoint devmode
Golang runtime go-mod go-build entrypoint devmode
Definition: "buildpack group"

16. Ubuntu
System libraries
node_modules dependencies
User application
"stack"
application
image
● The base image on which application layers are built.
● Each buildpack supports a set of stacks.
● Buildpacks cannot apt-get, so those sorts of things need to be part of
the stack.
Definition: "stack"

17. Buildpacks are run in a container called a builder.
The buildpack groups run /bin/detect to see which apply, and the run /bin/build
for each buildpack to build the source into layers.
These layers are placed on top of the stack.
npm-install
/bin/detect
/bin/build Ubuntu
System libraries
node_modules
dependencies
User application
stack
App
image
Builder (OCI Image)
npm-install
/bin/detect
/bin/build
npm-install
/bin/detect
/bin/build
Buildpacks
printf ‘hello world’
if 1+1==2
printf “I love math”
else
…
end

19. ● Open Source and governed by the new Continuous Delivery
Foundation (cd.foundation)
● Kubernetes-native components that are declarative, reproducible
and composable
● Event Triggers for automating builds
● Catalog of reusable Tasks and Pipelines
● Integrated with other projects such as Jenkins X, Knative and more!
https://tekton.dev
https://github.com/tektoncd
Tekton aims to improve the security, velocity and reliability of software
delivery for everyone by creating a set of standard CI/CD components
based on cloud native technologies.

20. ● Pipelines: The CI/CD component
● Step: an operation in a CI/CD workflow such as running pytest
on a python application
● Task: A collection of steps. These are instantiated in a
Kubernetes Pod
● Pipeline: A collection of tasks in order.
● Trigger: The component for Eventing
○ EventListener: A CRD that enables declarative way to
collect HTTP events with JSON Payloads
○ TriggerTemplate: Resource templates for triggers
○ TriggerBinding: Binds events with the trigger template.
Pass parameters from JSON payload

21. Task with Steps

22. Pipeline

23. Catalog
● Pluggable, reusable Tasks assembled
into Pipelines
● Tasks can be defined once and reused
by multiple Pipelines, different teams
go test
deploy
us-west1
image build
deploy
10%
canary
canary
analysis
deploy
us-east1
deploy
us-central1
image scan
Catalog
go test
image build
deploy x%
somewhere
canary
analysis
deploy
somewhere
image scan

24. Tekton Hub has some Tasks

25. DEMO

26. Q&A

27. Thank you

28. Resources:
● Tekton Integration Example in BuildPacks GitHub
● Build an app with Buildpacks
● Tekton Hub: Buildpacks
● Build and ARM App with Buildpacks
● Build a Windows App with Buildpacks
● Build a BuildPack