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Deploying a web app
On
Azure container services
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• Old school sys / network admin
• <3 shell / UNIX
• Cloud
• IoT
• Mail
• DNS
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Agenda
● Docker – What is it? What give?
● Dockerfiles
● Azure Container offerings
● Azure Container instances
● Demo
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What are containers?
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● A Standard unit of software that packages code and all of its dependencies so
the application run quickly and reliably from one computing environment to
another
● Includes everything needed to run the application: code, runtime, system tools
and libraries as well as settings.
● Multiple containers are run by a single OS kernel, therefore are more
lightweight than virtual machines.
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Why Containers?
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Agility
● Reduced effort from dev to production
● Streamlined dev / test cycles
● Faster time to market
● Quicker turnaround time
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Portability
● Write once run everywhere
● Standardised environment throughout lifecycle
● Immutability brings lesser moving parts
● More security - More safety
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Scalability
● Less overhead on infra
● Reduced cycle time - Faster boot up / restarts
● Skewed scaling with Orchestration
● Ramp down as well as Ramp up
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Use cases…
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● Cloud Native
● Lift and Shift
● Batch & Bulk Processing
● New age tech - IoT / ML / AI
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Container Services on Azure
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● Azure Container Registry (ACR)
● Azure Container Instance (ACI)
● Azure Web Apps for Containers
● Azure Kubernetes Service (AKS)
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Azure Container Registry
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● A repository for storing container images
● Similar to public registry like docker hub, but typically used in private model
● Container images can be replicated across Azure regions (Premium ACR
SKU)
● Containers must have a tag corresponding to the name of the ACR
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Azure Container Instances
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● Just, run your containers, job done!
● Really quick time to market
● Serverless - Worry about business, not infrastructure
● Bill for what you use - pay per second
● All the Managed Service benefits
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Dockerfile
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FROM python:3.7.3-alpine3.8
MAINTAINER [email protected]
RUN apk add --no-cache mariadb-dev build-base
ADD requirements.txt /
RUN pip install -r /requirements.txt
COPY ./ /code
WORKDIR /code
CMD [ "python", ”app.py" ]
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Build, Deploy & Demo