The Essentials of Building Cloud-Based Web Apps with Azure
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The document outlines key elements of building cloud-based web applications using Azure, covering features, setup processes, and disadvantages of various components like SQL Database, Web Apps, Blob Storage, Redis Cache, Active Directory, and Functions. It highlights the architectural overview for integrating these services, presenting scalability, performance, and management considerations. Additionally, it provides cost estimates for different service tiers and resources for further learning about Azure.
![Blob Storage
• What and Why?
– Secured, shared storage for resources instead of a file server
– Durable, highly-available, with 99.9% SLA
– Accessible through HTTP(S) for browsers and back-ends
– Blobs can be either public or private
– Store up to 500TB (!!), per account (!!)
• How?
– Move resources from file servers to blob storage
– Use the client SDK to retrieve/store blobs
– Make public resources available with HTTP(S)
• Disadvantages?
– Requires changing your server-side [+client-side] code
– No IP restriction / VNET support](https://image.slidesharecdn.com/azureessentials-161207204148/85/The-Essentials-of-Building-Cloud-Based-Web-Apps-with-Azure-8-320.jpg)
The Essentials of Building Cloud-Based Web Apps with Azure
- 1. The Essentials of Building Cloud- Based Web Apps with Azure Ido Flatow Senior Architect, Sela Group Microsoft MVP & RD Level: Intermediate
- 2. On-Premises Web Application Architectural Overview
- 4. SQL Database • What and Why? – Managed service, scalable, highly-available, with predictable performance – Avoid creating and maintaining SQL Server on a VM – Various performance tiers to match your needs • How? – Create the service and the database – Fix the schema as needed and export to .bacpac – Import .bacpac (schema + users + data) to Azure – Set Firewall rules – Change connections strings in the application • Disadvantages? – Max database size is 1TB – Performance is great, but with VMs, higher level of tuning is possible – Lacks several features of SQL Server (http://bit.ly/MSSQLvsSQLDB)
- 6. Web App • What and Why? – Managed IIS hosting for your web applications – Load-balanced with L7 load balancing (stickiness, SSL offload) – Reliable, scalable, with friction-free deploy – Easy-to-create environments for testing, staging, and production – Supports custom domains, SSL certificates, performance testing, etc. • How? – Create the web app service – Deploy your web application using MSDeploy / Git / VSTS / Dropbox / … • Disadvantages? – Closed-environment (read-only registry, limited disk space, no ETW support) – Limited instances SKUs (up to 20 instances, A-series machines) – Security hardening is not up to you
- 8. Blob Storage • What and Why? – Secured, shared storage for resources instead of a file server – Durable, highly-available, with 99.9% SLA – Accessible through HTTP(S) for browsers and back-ends – Blobs can be either public or private – Store up to 500TB (!!), per account (!!) • How? – Move resources from file servers to blob storage – Use the client SDK to retrieve/store blobs – Make public resources available with HTTP(S) • Disadvantages? – Requires changing your server-side [+client-side] code – No IP restriction / VNET support
- 10. Azure Redis Cache • What and Why? – Cache-as-a-Service to store session state and cacheable resources – Based on the well-known Redis Cache – Master-slave replication for high-availability SLA – Scale out with cache units, up to 530GB • How? – Create a new Redis cache service, then wait 15 minutes – Replace caching code with the Redis client SDK – Configure the session state provider to use Redis (optional) • Disadvantages? – Few versions back from the original Redis for Linux – Small throughput latency due to it being a public, secured service – Prices soar as you require more features (compared to creating your own VMs)
- 12. Azure Active Directory • What and Why? – Identity as a Services (IDMaaS) – Integrates with on-premises AD/ADFS – Standard protocols support: OAuth2, OpenId Connect, WS-Federation – Supports single and multi-tenant applications – Built-in features, such as MFA, custom domains, and reporting • How? – Create users and groups – Create an AAD application for your web application – Add OWIN Authentication middleware for AAD • Disadvantages? – Still no descent management tools, except the portal – Cool features (self-service, branding) are costly
- 13. Azure Active Directory B2C • What and Why? – All IDM functions an app needs, to handle a customer audience – Azure AD security, availability, and scalability for customer IDM – Social IdPs and “application local accounts” – Self-service sign up, password reset, profile management – Customizable sign in and sign up UI – Same protocols, libraries, and programming model as AAD • How? – Create an AAD B2C directory – Select available Identity Providers (IdP) – Create an AAD application for your web application – Configure sign-up, sign-in, and profile pages (UI, shown claims, etc.) – Add OWIN Authentication middleware for AAD • Disadvantages? – Still in preview, no CLI tools, some features are missing
- 15. Azure Functions • What and why? – Backend as a Service (BaaS, Serverless) – Write your code in C#, Node, Python, PHP – Ideal for trigger-based and timer-based operations – Pay only for execution time (or use your App Service plan) • How? – Create a new function by choosing a template – Define your inputs and outputs – Type/paste your code – Configure general settings, such as framework version, authentication, and CORS • Disadvantages? – Testing and debugging is tricky (mostly using trace messages) – Functions are stateless, which doesn’t suite code that requires local state – Still in preview – lacks a lot of documentation and best practices
- 17. Cloud-Based Web Application Architectural Overview Web App Azure Active Directory B2C Blob Storage Processed blobs SQL Database Azure Redis Cache Azure Functions Pre-Processed blobs
- 18. How Much Does it Cost? (Monthly) Component Low-end High-end SQL Database $5 (Basic, 2GB) $3720 (Premium, 500GB) Web App $56 (Basic, 1 core x 1 instance) $1786 (Premium, 4 core x 2 instance) Blob Storage (100GB) $2.4 (Local replication) $6.1 (RA Geo-replication) Redis Cache $17 (Basic, 250MB) $413 (Premium, 6GB) AAD B2C $0 (free for first 50k users) $330 (100k users, 1 login/user/day) Functions $2.6 (1 func/sec, 2s exec.) $318 (100 func/sec, 1s exec.) Bandwidth (100GB) $8.3 $8.3 Total $91.3 $6518.4
- 19. If We Had the Entire Week… Data SQL Server on VM, DocumentDb, NoSQL with Table storage 1 Compute and Hosting Virtual Machines, Cloud Services, Service Fabric, Azure Batch, Dev/Test Labs 2 Networking and Messaging Traffic Manager, Virtual Network, Service Bus Queues, Event Hubs 3 Developing and DevOps Non-.NET support, Monitoring, Troubleshooting, Automation 4
- 20. Resources • Azure landing page – http://azure.microsoft.com • Training and videos – https://www.microsoft.com/en-us/learning/azure-training.aspx – https://azure.microsoft.com/en-us/get-started • Forums and blogs – http://azure.microsoft.com/blog – http://weblogs.asp.net/scottgu – http://azure.microsoft.com/support/forums • My info – @IdoFlatow // [email protected] // http://www.idoflatow.net/downloads