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Azure basics

Benefits​

  • Cost-effective: you pay for what you consume. Pay-as-you-go (PAYG)
  • Global: we can choose regions in every part in world
  • Secure: cloud provider put a lot of effort to secure services
  • Reliable
    • data backups
    • disaster recovery
    • data replication
    • fault tolerance
  • Scalable: increase and decrease resources and services based on demand
  • Elastic: automate scaling during the spikes and drop in demand

Cloud services type​

  • SaaS (Software as a Service) --> For customers
  • PaaS (Platform as a Service) --> For developers
  • IaaS (Infrastructure as a Service) --> For Admins

Cloud types​

  • Public Cloud: everything is built on the cloud provider (Known also as Cloud-Native)
  • Private Cloud: everything is built on the company's datacenter (Known also as On-premise)
  • Hybrid Cloud: using both On-premise, and a Cloud Service Provider

Advantages​

  • High Availability
  • High Scalability
    • Scale up (vertical scaling)
    • Scale out (horizontal scaling)
  • High Elasticity (scale automatically)
  • High Durability
    • Be fast to restore in case of disaster

Global infrastructure​

  • A region a grouping of multiple datacenters (Availability Zones)
    • 58 regions available across 140 countries
  • A geography is discreet market of two or more regions that preserves data residency and compliance boundries
    • United States
    • Azure Government(US)
    • Canada
    • Brazil
    • Mexico
  • Paired region each region is paired with another region 300 miles (ca. 483 km)
  • Two types of regions
    • Recommended region
      • Supports Availability Zones
    • Alternate (other) region
      • Do not support Availability Zones
  • General availability (GA) is when a service is considered ready to be used publicly by everyone
  • Service available
    • Foundational: when GA,
      • Immediately or in 12 months in Recommended an Alternate Regions
    • Mainstream: When GA,
      • Immediately or in 12 months in Recommended Regions
      • May become available in Alternate Regions based on customer demand
    • Specialized: available in Recommended or Alternate Region based on customer demand
  • Availability Zone (AZ) is physical location made up of one or more datacenter
    • A region will generally contain 3 availability Zones
    • Datacenters within a region will be isolated from each other (so different buildings). But they will be close enough provide low-latency
    • AZ is made of
      • Fault domain
      • Update domain
  • Sovereign region: region dedicated to certain sovereign

Services​

  • Compute services

    • Azure VM
    • Container instances..
    • Service Fabric
    • Functions
    • Batch

  • Storage services

    • Azure Data Lake storage: to store structured and unstructured data (used when we are working with big data)

  • Database services

    • Azure Cosmos DB

      • A fully managed NoSQL databases
      • Designed for scale with a guarantee of 99,999% availability

    • Azure SQL Database

      • Fully managed MS SQL database with auto-scale
      • Integral intelligence and robust security

    • Azure Database for PostgreSQL/MYSQL/MariaDB

    • Azure Synapse Analytics (Azure SQL Data Warehouse)

    • Cache for Redis

  • Application integration

    • Services that help applications to talk to each other

  • Mobile

  • ...

  • Azure Resource Manage (ARM) for Infrastructure as Code

  • Use Azure Quick Start Template to start up rapidly

  • Azure Virtual Network (vNet) and Subnets

  • Big Data and Analytics Services

    • Synapse Analytics
    • HDInsight
    • Azure Databricks

  • Key Vault: helps you safeguard cryptographic keys and other secrets used by cloud apps and services

  • Azure Marketplace: apps and services are made available by a third-party publishers to quickly get started

  • Support plans

    • Basic
    • Developer
    • Standard
    • Professional Direct

Hierarchy​

---> Management group
  | 
  |---> Subscription
      |
      |--> Resource Group
         |
         |--> Resource

Resources​

  • Objects used to manage services in Azure
  • Represent service lifecycle
  • All resources are represented as Json template

Resource group​

  • Logic container for resources
  • Grouping of resources
  • Some strategies to group resources:
    • Type (sql, web, ...)
    • Lifecycle (app, environment)
    • Departament
    • Billing, location or combination of those
  • Resource can only be assigned to one resource group
  • They cannot be nested
  • IAM is used to manage access
  • Azure Resource Explorer to view resource details

Subscription​

  • Unit of management
  • A way to logically manage resources group and facilate billing
  • Two types of subscriptions can be used
    • Billing boundary
    • Access control boundar

Management group​

  • Mange a group of subscriptions
  • Management group can be nested

Resource Manager​

  • Resources can be managed using one of these mean

    • Portal
    • Rest
    • Powershell
    • CLI
    • SDKs

  • All the tools uses Azure Resource Manager

  • RM controls access and resources

  • tenantID: A tenant is a specific organization that owns and manages a instance of Azure

Cost managment​

  • Cost analysis: explore and analyze organization cost

  • Cost alerts: raise an alerts

    • Budget alerts
    • Credit alerts
    • Departement spending quota alerts

  • Budget: a way to set budget by subscription, resource group, resouce, ...

  • Pricing calculator Vs Total Cost of Ownership (TCO) calculator

  • Tags ?