Explanation:
Step 1: From Developer settings in GitHub Enterprise Server, registera new OAuth app.
If you plan to use OAuth to connect Azure DevOps Services or Azure DevOps Server with your GitHub Enterprise Server, you first need to register the application as an OAuth App Step 2: Organization settings in Azure DevOps, add an OAuth configuration Register your OAuth configuration in Azure DevOps Services.
Note:
* Sign into the web portal for Azure DevOps Services.
* Add the GitHub Enterprise Oauth configuration to your organization.
* Open Organization settings>Oauth configurations, and choose Add Oauth configuration.
* Fill in the form that appears, and then choose Create.
Step 3: From Project Settings in Azure DevOps, add a GitHub connection.
Connect Azure DevOps Services to GitHub Enterprise Server
Choose the Azure DevOps logo to openProjects, and then choose the Azure Boards project you want to configure to connect to your GitHub Enterprise repositories.
Choose (1) Project Settings, choose (2) GitHub connections and then (3) Click here to connect to your GitHub Enterprise organization.
Reference:
https://docs.microsoft.com/en-us/azure/devops/boards/github/connect-to-github

You can create a service hook for Azure DevOps Services and TFS with Jenkins.
References:
https://docs.microsoft.com/en-us/azure/devops/service-hooks/services/jenkins

Instead implement continuous integration.
Note: WhiteSource is the leader incontinuous open source software security and compliance management.
WhiteSource integrates into your build process, irrespective of your programming languages, build tools, or development environments. It works automatically, continuously, and silently inthe background, checking the security, licensing, and quality of your open source components against WhiteSource constantly-updated de#nitive database of open source repositories.
Reference:
https://azuredevopslabs.com/labs/vstsextend/whitesource/

See the solution below in explanation.
Explanation:
To ensure that your Azure Web App named az400-38443478-main can retrieve secrets from an Azure Key Vault named az400-3844J478-kv1 using a system managed identity with the principle of least privilege, follow these detailed steps:
* Enable a System Managed Identity for the Azure Web App:
* Navigate to the Azure Portal.
* Go to the Azure Web App az400-38443478-main.
* Select Identity under the Settings section.
* In the System assigned tab, switch the Status to On.
* Click Save to apply the changes.
* Grant the Web App Access to the Key Vault:
* Go to the Azure Key Vault az400-3844J478-kv1.
* Select Access policies under the Settings section.
* Click on Add Access Policy.
* Choose Secret permissions and select Get and List. This grants the app the ability to read secrets, adhering to the principle of least privilege.
* Click on Select principal, search for your Web App name az400-38443478-main, and select it.
* Click Add to add the policy.
* Don't forget to click Save to save the access policy changes.
* Retrieve Secrets in the Web App Code:
* In your Web App's code, use the Azure SDK to retrieve the secrets.
* For example, in a .NET application, you can use the Azure.Identity and Azure.Security.KeyVault.
Secrets namespaces.
* Utilize the DefaultAzureCredential class which will automatically use the system managed identity when running on Azure.
using Azure.Identity;
using Azure.Security.KeyVault.Secrets;
var client = new SecretClient(new Uri("https://az400-3844J478-kv1.vault.azure.net/"), new DefaultAzureCredential()); KeyVaultSecret secret = await client.GetSecretAsync("my-secret-name"); string secretValue = secret.Value; Replace "my-secret-name" with the actual name of the secret you want to retrieve.
By following these steps, your Azure Web App will be able to securely retrieve secrets from the Azure Key Vault using a system managed identity, without needing to store credentials in the code, and adhering to the principle of least privilege. Remember to replace the placeholder names with the actual names of your Web App and Key Vault.

See the solution below in explanation.
Explanation:
Step 1: Initialize the Default Main Branch
* Navigate to Azure DevOps:
* Go to Azure DevOps and sign in with your credentials.
* Select Your Project:
* Choose Project1 from your list of projects.
* Initialize the Main Branch:
* Go to Repos > Files.
* If the main branch does not exist, you will see an option to initialize it. Click on Initialize and follow the prompts to create the main branch1.
Step 2: Create a New Branch for the Pipeline
* Navigate to Branches:
* Go to Repos > Branches.
* Click on New branch.
* Create the Branch:
* Enter azure-pipelines as the branch name.
* Select main as the base branch.
* Click Create2.
Step 3: Create a New Azure Pipelines YAML Pipeline
* Navigate to Pipelines:
* Go to Pipelines > New pipeline.
* Select the Repository:
* Choose Azure Repos Git and select the relevant repository.
* Configure the Pipeline:
* Select Starter pipeline.
* Replace the default YAML with the ASP.NET template. You can find the ASP.NET template in the Azure Pipelines documentation or use the following example:
trigger:
- main
pool:
vmImage: 'windows-latest'
variables:
buildConfiguration: 'Release'
steps:
- task: UseDotNet@2
inputs:
packageType: 'sdk'
version: '5.x'
installationPath: $(Agent.ToolsDirectory)/dotnet
- script: |
dotnet build --configuration $(buildConfiguration)
displayName: 'Build project'
- script: |
dotnet test --no-build --configuration $(buildConfiguration)
displayName: 'Run tests'
* Save the Pipeline:
* Click on Save and enter azure-pipelines as the branch name.
* Click on Save and run to save the pipeline to the new branch named azure-pipelines3.
By following these steps, you will have successfully initialized the main branch, created a new branch named azure-pipelines, and set up a new Azure Pipelines YAML pipeline using the ASP.NET template