A sample azure pipeline that creates a nuget package and publish it to Azure DevOps artifacts

azure-pipeline.yml

trigger:
  - master

pool: 'Hosted Windows 2019 with VS2019'

variables:
  buildConfiguration: 'Release'

stages:
- stage: build_pack
  displayName: 'Build and pack project'

  jobs:
  - job: build
    displayName: 'Build project'

    steps:
    - template: build_steps.yml

- stage: deploy_to_nuget
  displayName: 'Deploy to NuGet'
  dependsOn: build_pack
  condition: and(succeeded(), eq(variables['build.sourceBranch'], 'refs/heads/master'))
  jobs:
  - deployment: nuget_deploy
    displayName: Deploy to Nuget
    environment: Private Nuget
    strategy:
      runOnce:
        deploy:
          steps:
          - task: NuGetCommand@2
            inputs:
              command: 'push'
              packagesToPush: '$(Pipeline.Workspace)/**/*.nupkg;!$(Pipeline.Workspace)/**/*.symbols.nupkg'
              nuGetFeedType: 'internal'
              publishVstsFeed: 'your feed GUID'

build_steps.yml

steps:
- checkout: self
  clean: true
  lfs: true

- task: GitVersion@5
  inputs:
    runtime: 'core'
    configFilePath: 'GitVersion.yml'

- task: Assembly-Info-NetCore@2
  displayName: 'Set Assembly Info'
  inputs:
    Path: "$(Build.SourcesDirectory)"
    FileNames: '**/*.csproj'
    InsertAttributes: true
    FileEncoding: "auto"
    WriteBOM: false
    Product: 'My great product'
    Company: 'My great company'
    Copyright: 'Copyright My great company $(date:YYYY)'
    LogLevel: "verbose"
    FailOnWarning: false
    VersionNumber: '$(GitVersion.AssemblySemVer)'
    FileVersionNumber: '$(GitVersion.AssemblySemVer)'
    InformationalVersion: '$(GitVersion.InformationalVersion)'

- task: DotNetCoreCLI@2
  displayName: 'NuGet Restore'
  inputs:
    command: restore
    projects: '**/*.csproj'

- task: DotNetCoreCLI@2
  displayName: Build all projects
  inputs:
    projects: '**/*.csproj'
    arguments: '-p:Version=$(GitVersion.AssemblySemVer) --configuration $(buildConfiguration) --no-restore'

- task: CopyFiles@2
  displayName: 'Copy bin files'
  inputs:
    sourceFolder: 'src\MyGreatProject\bin\$(BuildConfiguration)\netstandard2.0'
    targetFolder: '$(Build.ArtifactStagingDirectory)\Binaries'

- task: DotNetCoreCLI@2
  displayName: Pack Nuget
  inputs:
    command: pack
    packagesToPack: 'src\MyGreatProject\MyGreatProject.csproj'
    packDirectory: '$(Build.ArtifactStagingDirectory)\Nuget'
    nobuild: true
    includesymbols: true
    includesource: true
    versioningScheme: byEnvVar
    versionEnvVar: GitVersion.NuGetVersionV2

- task: PublishBuildArtifacts@1
  displayName: 'Publish the nuget packages'
  inputs:
    PathtoPublish: '$(Build.ArtifactStagingDirectory)\Nuget'
    ArtifactName: 'MyGreatProject'
    publishLocation: 'Container'

- task: PublishBuildArtifacts@1
  displayName: 'Publish the binaries'
  inputs:
    PathtoPublish: '$(Build.ArtifactStagingDirectory)\Binaries'
    ArtifactName: 'MyGreatProjectBinaries'
    publishLocation: 'Container'