Kubernetes from the Ground Up

GENERAL DISTRIBUTION
THE KUBERNETES PLATFORM
FOR BIG IDEAS
Dustin Humphries
PaaS and App Dev Solutions Architect
February 20, 2019

… so you want to do
containers and Kubernetes?

YOUR DIFFERENTIATION DEPENDS ON YOUR
ABILITY TO DELIVER APPLICATIONS FASTER
CONTAINERS, KUBERNETES, MICROSERVICES & DEVOPS ARE KEY INGREDIENTS
Innovation
Culture
Cloud-native
Applications
AI & Machine
Learning
Internet of
Things
Blockchain

KUBERNETES DONE RIGHT IS HARD
INSTALL HARDENDEPLOY OPERATE
● Templating
● Validation
● OS Setup
● Identity & Security Access
● App Monitoring & Alerts
● Storage & Persistence
● Egress, Ingress & Integration
● Host Container Images
● Build/Deploy Methodology
● Platform Monitoring & Alerts
● Metering & Chargeback
● Platform Security Hardening
● Image Hardening
● Security Certifications
● Network Policy
● Disaster Recovery
● Resource Segmentation
● OS Upgrade & Patch
● Platform Upgrade & Patch
● Image Upgrade & Patch
● App Upgrade & Patch
● Security Patches
● Continuous Security
Scanning
● Multi-environment Rollout
● Enterprise Container Registry
● Cluster & App Elasticity
● Monitor, Alert, Remediate
● Log Aggregation
of enterprise users identify
complexity of implementation and
operations as the top blocker to adoption
Source: The New Stack, The State of the Kubernetes Ecosystem, August 2017
75%

The Kubernetes platform
for developers

Developers want
to be productive and
have choice
Choice of architectures
Choice of programming languages
Choice of databases
Choice of application services
Choice of development tools
Choice of build and deploy workflows
They don’t want to have to worry
about the infrastructure.
Photo: rawpixel on Unsplash

CONFIDENTIAL - FOR INTERNAL USE ONLY
7
CONFIDENTIAL - FOR INTERNAL
USE ONLY

CONFIDENTIAL - FOR INTERNAL USE ONLY
8
CONFIDENTIAL - FOR INTERNAL
USE ONLY
THE CLOUD-NATIVE APP DEV
CHALLENGE

for IT Operations

IT Operations needs
secure, efficient and
controlled processes
Automated* provisioning
Automated installations
Automated security scanning
Automated upgrades
Automated backups
And it needs to integrate with what
you already have.
*coming soon

Kubernetes Components

Etcd
Distributed, consistent key-value store used
for config management, service discovery,
and state management
12
Master Components
Kube-controller-manager
Daemon that watches the state of the cluster
attempts to make changes based on current
state and desired state
Cloud-controller-manager
Allows cloud providers to release code specific
to their platform and interact independently
with Kubernetes.
Kube-apiserver
API server used to expose Kubernetes
control plane.
Kube-scheduler
Schedules pods and deploys them to nodes
based on availability of requested resources

Kubelet
Agent that runs on each node, and makes
sure pods are running and healthy
13
Node Components
Kube-proxy
Enables service abstraction maintaining
network rules on hosts and performs
connection forwarding
Container Runtime
Software that is responsible for
running containers. Docker,
containerd, cri-o

But we need Networking…
NETWORK

Where do I store my container images?
IMAGE
REGISTRY
NETWORK

What about logging and metrics?
IMAGE
REGISTRY
METRICS AND LOGGING
NETWORK
heapster

What about ALM?
IMAGE
REGISTRY
APP LIFECYCLE MGMT
METRICS AND LOGGING
NETWORK

We need application services…
IMAGE
REGISTRY
Application services e.g. database and messaging
APP SERVICES
APP LIFECYCLE MGMT
METRICS AND LOGGING
NETWORK

Enable Devops, with Self Service
IMAGE
REGISTRY
SELF-SERVICE
APP SERVICES
APP LIFECYCLE MGMT
METRICS AND LOGGING
NETWORK

NOT ENOUGH, THERE IS MORE!
Routing & Load Balancing
Multi-tenancy
CI/CD Pipelines
Role-based Authorization
Capacity Management
Chargeback
Vulnerability Scanning
Container Isolation
Image Build Automation
Quota Management
Teams and Collaboration
Infrastructure Visibility

21
OpenShift Application Lifecycle Management
Build Automation Deployment Automation
Service Catalog
(Language Runtimes, Middleware, Databases)
Self-Service
Infrastructure Automation & Cockpit
Container
Business
Automation
Container
Integration
Container
Data &
Storage
Container
Web &
Mobile
Networking Storage Registry
Logs &
Metrics
Security
Container Orchestration & Cluster Management
(kubernetes)
Container Runtime & Packaging
(docker)
Enterprise Container Host
Red Hat Enterprise LinuxAtomic Host
Traditional, stateful, and
cloud-native apps
Developer Experience
Enterprise Kubernetes++
container orchestration
Trusted by Fortune Global 500
companies
OPENSHIFT CONTAINER PLATFORM

for your business
“The moment we have an idea, we can start building.”
Tobias Mohr, Head of Technology and Infrastructure, Lufthansa Technik

RED HAT OPENSHIFT BUSINESS VALUE
531%
5 Year ROI
$1.29M
Average annual
benefits per 100
developers
8 MONTHS
Payback
period
The Business Value of Red Hat OpenShift, IDC #US41845816, October 2017
https://www.redhat.com/en/resources/The-Business-Value-of-Red-Hat-OpenShift
66% 36%
More applications
per year
Faster development
lifecycle

HOW OPENSHIFT ENABLES
DEVELOPER PRODUCTIVITY
SPRING & JAVA EE MICROSERVICES FUNCTIONS
LANGUAGES DATABASES APPLICATION SERVICES
LINUX WINDOWS*
* coming soon
CODE
BUILD TEST DEPLOY
MONITORREVIEW
Self-service
Provisioning
Automated
build & deploy
CI/CD
pipelines
Consistent
environments
Configuration
management
App logs &
metrics

Fully automated day-1 and day-2 operations
AUTOMATED CONTAINER OPERATIONS
Infra provisioning
Embedded OS
Full-stack deployment
On-premises and cloud
Unified experience
Secure defaults
Network isolation
Signing and policies
Audit and logs
Multi-cluster aware
Monitoring and alerts
Zero downtime upgrades
Full-stack patch & upgrade
Vulnerability scanning
INSTALL HARDENDEPLOY OPERATE
AUTOMATED OPERATIONS

● https://docs.okd.io/latest/minishift/getting-started/installing.html
● To grant your user admin rights to view all projects run the following commands:
○ oc login –u system:admin
○ oc adm policy add-cluster-role-to-user admin <user>
○ oc adm policy add-cluster-role-to-user cluster-admin <user>
● Bluegreen project:
○ Feel free to fork my project and test:
■ https://github.com/dmhumph/bluegreen
Minishift Links

● Red Hat CodeReady Workspaces is included with OpenShift subscriptions
● https://developers.redhat.com/products/codeready-workspaces/overview/
Red Hat CodeReady Workspaces

THANK YOU

29
DIY CONTAINER STACK CHALLENGES
Linux
Container Runtime & Packaging
Networking SecurityStorage Registry
Logs &
Metrics
Container Orchestration & Cluster Management
Application Lifecycle Management (CI / CD)
Build Automation Deployment Automation
Service Catalog (Language Runtimes, Middleware, Databases, …)
Self-service
Container ContainerContainer Container Container
PublicPrivateVirtualPhysical
Bring your own middleware, data
& other services. Build out a
service catalog / interface to
enable self-service deployment.
Take existing application build/CI
& deployment tools and evolve to
add container image build & mgt.,
continuous deployment, etc.
Pull Kubernetes or other
orchestration (Mesos, Swarm)
from rapidly moving upstream &
support / maintain yourself. Do
all the work required to integrate
it into your enterprise IT
environment (networking,
storage, registry, security,
logging, metrics, etc.)
Pull Docker container runtime
from rapidly moving upstream
and support, secure and maintain
it yourself.
Support and manage your own
Linux community distro or build
on existing RHEL or 3rd party
commercial Linux offerings.

Kubernetes from the Ground Up

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