Az 104 session 2 implement and manage azure webapps and container

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AZ-104: Microsoft Azure Administrator
1
Session 2

AzureTalk Core Team
2

Today’s Session Speaker
3
Girish Kalamati,
AzureTalk Core Team Member,
MCP, DevOps Consultant
Vipin Jha
AzureTalk Core Team
Member, Consultant, MCT
Niraj Kumar
AzureTalk Founder
Enterprise Architect, MCT

AZ-104: Skills Measured
• Manage Azure identities and governance (15-20%)
• Deploy and manage Azure compute resources (25-
30%)
• Implement and manage storage (10-15%)
• Configure and manage virtual networking (30-35%)
• Monitor and back up Azure resources (10-15%)
4

Agenda
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• App services
• Containerization(AKS)
• Container Registry
• Azure Container Instance
• Serverless Computing

If you know or used any of the below compute service
6
Serverless
Computing
Pre-Requisite
If not, no worries, relax We will try to explain

App Services

What is an App Service ?
8
• PaaS Offering for Web Apps
• Enables you to build and host web apps
• Mobile back ends, and RESTful APIs in the
programming language of your choice
• No need of managing infrastructure
• Offers auto-scaling and high availability
• Supports both Windows and Linux
• Automated deployments from GitHub, Azure
DevOps, or any Git repo
• Serverless code
• Security and compliance
Reference : Microsoft Docs

App Services
9
• Fully managed platform with built-in
infrastructure maintenance, security
patching, and scaling
• Built-in CI/CD integration and
supports zero-downtime deployments
• App service environment
• Rigorous security and compliance

App Service Plan
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App
Service
Plan
App
Service
You cannot load more
Web Apps than the
actual server limit
Note: A single App Service Plan limits to : No. of VM instances, Size of CPU

App Services Plan
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FREE SHARED BASIC STANDARD PREMIUM ISOLATED
Web, mobile or
API apps
10 100 Unlimited Unlimited Unlimited Unlimited
Disk space 1 GB 1 GB 10 GB 50 GB 250 GB 1 TB
instances – – Up to 3 Up to 10 Up to 30** Up to 100*
Custom domain – Supported Supported Supported Supported Supported
Auto Scale – – – Supported Supported Supported
VPN hybrid
connectivity
– – – Supported Supported Supported
Network
Isolation
Supported

What is scaling?
12

Problems with Scale-UP
• Causes interruption in service
• Client-Apps might need to disconnect from the service
and reconnect
• New connections might be rejected until scaling finishes
• Scaling up can cause the Webapp outgoing IP address to
change
• Might require firewall changes
13

Question 1
Can I choose between windows or Linux OS as host in
App Service ?
a) True
b) False
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https://azureezy.com/q1

Question 1
Can I choose between windows or Linux OS as host in
App Service ?
a) True
b) False
15

Containerization

Docker, Container and VM
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Source : https://devopedia.org/docker

Containers
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• Portable unit of deployment
• Packs AppCode + dependencies
• Virtualization without need of total
VM
- Slice up the OS to run multiple apps
- Each container runs in isolated env,
but shares host kernel
• Runs one service per
container(Container and App share
lifecycle )

Docker file Docker image
Containers
Docker build Docker run
Docker Image

Why Docker?
20

Why Docker…
21

Life With Docker was easy ?
22Source : Google

Container Orchestration
23
Source : Internet

Azure Container Registry

Container Registry
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Azure Container Registry tasks
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Azure Container Registry Security
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- Yes, You have granular control
- Sign Images to increase trust and protect from getting
corrupted
- Images are encrypted at rest

Azure Container Instance
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• Fast startup: Launch containers in seconds
• Per second billing: Incur costs only while the container is
running
• Hypervisor-level security: Isolate your application completely
as it would be in a VM
• Custom sizes: Specify exact values for CPU cores and memory.
• Persistent storage: Mount Azure Files shares directly to a
container to retrieve and persist state
• Linux and Windows: Schedule both Windows and Linux
containers using the same API

ACI Limitations
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Scenario where ACI may not help and you may need an
Orchestrator.
* Service discovery across multiple containers
* Automatic scaling
* Coordinated application upgrades

Question 2
Where can I store/maintain my public docker images ?
a) Azure Container Registry
b) Docker Hub
30

Question 2
Where can i store/maintain my public docker images ?
a) Azure Container Registry
b) Docker Hub
31

Question 3
Azure Container Instances bills customer on ‘per second
billing’ basis. Is the statement true or false ?
a) True
b) False
32

Question 3
Azure Container Instances bills customer on ‘per second
billing’ basis. Is the statement true or false ?
a) True
b) False
33

Azure Kubernetes Services

Kubernetes(K8s)
35
Source: Google
• Has become de facto standard for Container-
Orchestration system
• Is becoming the Operating System for cloud
native world
• Automates deployment, scaling and operational
concerns of containerized workloads across
clusters of VM hosts

Azure Kubernetes Services
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At no extra charges !
• Automated
upgrades, patches
• High Reliability,
Availability
• Automatic Scaling
• Self-Healing
• Monitoring
• Fully-managed Kubernetes platform hosted
in Azure as a PaaS service
• Deeply integrated with Azure Dev tools and
services
• Decreases the complexity and operational
overhead of managing k8s

Kubernetes Cluster
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• Orchestrators support cluster-based technology
• Pool of virtual machines(nodes)
• Highly-available environment
• Can scale from 0 to hundreds
• Nodes can be heterogeneous(SKU’s) and are aware
of other nodes in the pool

AKS Cluster provisioning
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• Azure Portal
• Azure CLI
• Azure ARM Script

AKS Cluster Architecture
39Source: Microsoft docs
Entry point
for REST
commands
to Master-
Node
Deploys
Containers
across the
cluster
Key-Value
Data Store that
maintain the
cluster state
Virtual-Networking
is handled by
kube-proxy on
each node
Monitors
the Nodes
and PODs
Master-Node
manages the
entire
Cluster
Kubectl
Command-
Line Utility
to manage
the entire
cluster
(Replication,
Namespaces etc.)
Handles Routine
tasks in the cluster
allows containerized
applications to run and interact
with additional resources such
as the virtual network and
storage

Deployment in AKS Cluster
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Source: Microsoft Docs

PODS
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Source: Google
• You never directly run a container instead you run a
POD
• Apps running in the same POD share same IP, PORT
etc.
• Pods are immutable – if you change a pod definition
it creates a new pod and delete the old
• The Smallest building blocks in Kubernetes
- Collection of co-located containers & volumes
- Running in the same exec environment
- Managed as a single atomic unit

Types of Configuration!
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Two types
• Declarative
• Imperative

Configurations types
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• Imperative configurations where you explicitly order
system what to do, by issuing series of commands.
• Kubernetes thrives on Declarative configurations
where you declare a configuration and service are
bound to come to that state. So k8s is more
manageable, dynamic & reliable.

POD Lifecycle
44Source: Microsoft
Kubectl
Instruct
Master to
provision 2
replicas of
PODs
Store POD
SPECS
Assign a
Node for
Each POD
PODs got
assigned
on each
NODES
Kubelet Verifies if there are
any assigned PODs with the
same name
Kube-Controller manager
verifies correct no. of
pods running in the
cluster

Replica Sets
45
k8s object that manage PODs
- Redundancy: allow for failure
- Scale: allow for more requests to
be processed
• Monitor the cluster and ensure desired no. of PODs are
running (scale up or down and even destroy excess PODs)
• Created by using deployment objects

Deployments
46
k8s object that control the
running state of PODs & Replica
Sets
- Instruct the k8s deployment
controller to create, scale and update
instances of the services.
- Fine grain access on PODs state
- To Delete set of PODs, delete deployment
- To Update set of PODs, update deployment definition
• K8s deployment controller reads the deployment
and schedules the service instances on Nodes in the
cluster
• Deployments operations are simple

Question 4
Kubernetes configurations are ___________ ?
a) Imperative
b) Declarative
47

Question 4
Kubernetes configurations are ___________ ?
a) Imperative
b) Declarative
48

Serverless Computing

Serverless computing
• Azure Functions
• Azure Logic Apps
• Azure Event Grid
50

Azure Function
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• Serverless computing service
• Can write code in any language
• Enables user to run event-triggered
code without managing a physical
server beneath
• Scenarios:
- Decoupled architectures
- High-throughput (Processing 1 lakh
events per second)
- Reusability
- Shared Resource Usage

Azure Logic Apps
52
• Schedule, automate, and
orchestrate tasks, business
processes
• No need of writing a Code
• Build scalable solutions:
- App integration
- Data integration
- System integration
- Enterprise application integration
- business-to-business (B2B)
communication

Azure Event Grid
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• Simplifies event
management in building
event-driven apps and
serverless architectures
• Service which power
your event-driven and
serverless apps
• Routes events from any
source to any
destination

Question 5
Which azure serverless computing service do not need
one to write Code rather than just mentioning a logic ?
a) Azure Logic Apps
b) Azure Event Grid
c) Azure Function
54

Question 5
Which azure serverless computing service do not need
one to write Code rather than just mentioning a logic ?
a) Azure Logic Apps
b) Azure Event Grid
c) Azure Function
55

Break
56

Demo
• Lab 1: Containerized web app & Azure App Service
• Lab 2: App Service scale up and scale out
• Lab 3: Docker image & Azure Container Instance
• Lab 4: Azure Kubernetes Service cluster
• Lab 5: Azure Kubernetes Service cluster Pods
• Lab 6: Scale containerized workloads in AKS

Q & A
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You can also tweet your question or queries at #TheAzureGuy007

59
https://bharatguru.in
Thanks!
https://azureezy.com/az-104
https://t.me/AzureTalk
https://youtube.com/c/AzureTalk
https://www.linkedin.com/in/nirajkum/
https://www.linkedin.com/in/vipinkumarjha/
https://www.linkedin.com/in/girish-kalamati/
https://bit.ly/TheAzureGuy007
@TheAzureGuy007

Az 104 session 2 implement and manage azure webapps and container

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