Serverless Architecture Meets Azure Dev-Ops

Serverless Architecture Meets Azure Dev-Ops

Business Scenario: Need to create repositories/branches in cloud on demand.

Detailed Scenario: A user will submit information to create a branch + repository or just the branch based on the needs and then system should create respective artifacts. The system should also copy/edit/update some files from a master branch to the new branch. The user can also submit request to delete branch/repository.

Solution: The solution utilizes all serverless technologies available in the cloud to deliver with the least cost.  At a high level, user will add information (JSON document) into CosmosDB, which will automatically trigger an Azure Function using consumption model to build GIT repositories in Azure Dev Ops and eventually write the JSON file into a BLOB in Azure Storage.

The physical architecture of the solution involves following components:

·        Geo-redundant CosmosDB

·        App Service Plan with Azure Function on Consumption Plan

·        Application Insight

·        Azure Storage

·        Azure Dev Ops

o   Project

o   Repositories

Technology Stack

·        Cosmos DB

·        Azure Functions

·        Azure Storage

·        GIT Skills

·        C#

Tools & Language

·        Visual Studio

·        Azure Portal

·        C#

Notable Points

·        Dot-Net Core cannot be used as Dev Ops Nugget libraries only support up to .NET 4.61

·        Cannot use higher than 9.01 version of Newtonsoft.JSON due to conflicts with packages

·        SendGrid can also be integrated to send an email after the repository/branch is created

·        Application insight integration makes the logging/analysis very simple.

·        Use tokens for passing the credentials to Azure Storage and Azure Dev-Ops.

Key Nugget Packages

·        Microsoft.AspNet.WebApi.Client

·        Microsoft.Azure.WebJobs.Extensions.DocumentDB

·        Microsoft.IdentityModel.Clients.ActiveDirectory

·        Microsoft.TeamFoundationServer.Client

·        Microsoft.VisualStudio.Services.Client

·        WindowsAzure.Storage