introduction to cloud & containers
— Eugene Romero, sjefskonsulent @ Crayon
what is cloud computing?
- 1960s - John McCarthy proposes computing being offered as a utility
- 1990s - rise of the internet and advancements in virtualization technologies
- 2000s - launch of major public cloud platforms
- Today - cloud computing powers everything from web apps to AI workloads
history
cloud
- easily scalable
- only pay for what you use
- accessible from everywhere
- distributed
- reduced maintenance
traditional
- scaling is costly and slow
- large initial and ongoing cost
- location-specific access
- not distributed
- maintenance
service models
Infra as a Service
AWS EC2 VMs
Azure Virtual Machines
Google Compute Engine
IaaS
Platform as a Service
Heroku
Azure App Service
Google App Engine
PaaS
Software as a Service
Office 365
Google Workspace
Dropbox
SaaS
the big players
Amazon Web Services
Microsoft Azure
Google Cloud Platform
distributed!
Azure datacenter map
containers?
containers
virtual machines
bare metal
evolution of software deployment
solving "works on my machine" syndrome
containers
- lightweight
- fast startup
- low maintenance
- small attack surface
virtual machines
- high resource usage
- slow to start
- require maintenance
- large attack surface
break
there are many container managers
running instance
container
blueprint
image
the Dockerfile
example docker commands
docker image naming
repository/image:tag
name of the source repository
version
image name
demo
lets build a simple web server
containers + cloud = the future!
- manage multiple containers at scale
- programmatically start/stop workloads
- expose applications to the internet
- combine containerized apps with other cloud resources
orchestration
Azure Container Services
Azure Container Instances
simple, single container
ACI
Azure Kubernetes Service
full orchestration and control, higher complexity
AKS
Azure Container Registry
repository for docker images
ACR
Azure Container Apps
microservices, autoscaling, more control
ACA
Azure Container Apps
microservices, autoscaling, more control
ACA
demo
lets build a simple web server (in Azure)
what you will build:
- containerized dotnet API
- multiple endpoints
- running on Azure
workshop preparation
pre-requisites:
- dotnet SDK
- Docker desktop
- Azure subscription
questions?
day 2
workshop
- install az CLI (5 min)
- build the app (10 min)
- create Dockerfile (15 min)
- push to Azure Container Registry (15 min)
- deploy to Azure Container Instance (25 min)
- update app (10 min)
steps
https://learn.microsoft.com/nb-no/cli/azure/install-azure-cli
https://github.com/eugeneromero/uis-docker-initial
docker commands
az cli commands
https://portal.azure.com
az acr commands
az aci commands
