This gist has sample DevOps pipeline code to build ASP.NET Core Web Application for Linux

DevOps-Pipeline-For-Linux-Build

# ------------------------------------------------------------------------------
# 1. To build all .net core projects in a solution use below pipeline code
# ------------------------------------------------------------------------------

trigger:
- master

pool:
  vmImage: 'ubuntu-latest'

variables:
  buildConfiguration: 'Release'
    
steps:
- script: dotnet restore
  displayName: 'dotnet restore'

- script: dotnet build --configuration $(buildConfiguration)
  displayName: 'dotnet build $(buildConfiguration)'

- task: DotNetCoreCLI@2
  displayName: 'dotnet test $(buildConfiguration)'
  inputs:
    command: test
    projects: '**/*Tests/*.csproj'
    arguments: '--configuration $(buildConfiguration) --collect "Code coverage"'

- task: DotNetCoreCLI@2
  displayName: 'dotnet publish $(buildConfiguration)'
  inputs:
    command: publish
    publishWebProjects: True
    arguments: '--configuration $(BuildConfiguration) --output $(Build.ArtifactStagingDirectory)'
    zipAfterPublish: True

- task: PublishBuildArtifacts@1
  displayName: 'publish artifacts'





# ------------------------------------------------------------------------------
# To build selected .net core projects in a solution use below pipeline code
# ------------------------------------------------------------------------------

trigger:
- master

pool:
  vmImage: 'ubuntu-latest'

variables:
  buildConfiguration: 'Release'

steps:
- task: DotNetCoreCLI@2
  displayName: 'Restore project'
  inputs:
    command: 'restore'
    projects: |
      **/WebApplication_Li_CI_CD.csproj
      **/WebApplication_Li_CI_CD_1.csproj
    feedsToUse: 'select'

- task: DotNetCoreCLI@2
  displayName: 'Build project'
  inputs:
    command: 'build'
    projects: |
      **/WebApplication_Li_CI_CD.csproj
      **/WebApplication_Li_CI_CD_1.csproj

- task: DotNetCoreCLI@2
  displayName: 'Publish project'
  inputs:
    command: publish
    projects: |
      **/WebApplication_Li_CI_CD.csproj
      **/WebApplication_Li_CI_CD_1.csproj
    publishWebProjects: True
    arguments: '--configuration $(BuildConfiguration) --output $(Build.ArtifactStagingDirectory)'
    zipAfterPublish: True

- task: CopyFiles@2
  displayName: 'Copy zip files'
  inputs:
    SourceFolder: '$(Build.SourcesDirectory)'
    Contents: '**\*.zip'
    TargetFolder: '$(Build.ArtifactStagingDirectory)'

- task: PublishBuildArtifacts@1
  displayName: 'Publish artifacts'





# ---------------------------------------------------------------------------------------------------
# To build all .net framework in solution use below pipeline code
# ---------------------------------------------------------------------------------------------------

trigger:
- master

pool:
  vmImage: 'windows-latest'

variables:
  solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'

steps:
- task: NuGetToolInstaller@1

- task: NuGetCommand@2
  inputs:
    restoreSolution: '$(solution)'

- task: VSBuild@1
  inputs:
    solution: '$(solution)'
    msbuildArgs: '/p:DeployOnBuild=true /p:WebPublishMethod=Package /p:PackageAsSingleFile=true /p:SkipInvalidConfigurations=true /p:PackageLocation="$(build.artifactStagingDirectory)"'
    platform: '$(buildPlatform)'
    configuration: '$(buildConfiguration)'

- task: VSTest@2
  inputs:
    platform: '$(buildPlatform)'
    configuration: '$(buildConfiguration)'

- task: CopyFiles@2
  inputs:
    SourceFolder: '$(Build.SourcesDirectory)'
    Contents: '**\*.zip'
    TargetFolder: '$(Build.ArtifactStagingDirectory)'

- task: PublishBuildArtifacts@1
  displayName: 'Publish artifacts'