What's the common practice of gitignore for aspnet core project
This is standard .gitignore for ASP.NET projects, it combines things from .NET Core and Visual Studio. Taken from official yo-generator-aspnet from Omnisharp.
Source: https://raw.githubusercontent.com/OmniSharp/generator-aspnet/master/templates/gitignore.txt
## Ignore Visual Studio temporary files, build results, and## files generated by popular Visual Studio add-ons.# User-specific files*.suo*.user*.userosscache*.sln.docstates# User-specific files (MonoDevelop/Xamarin Studio)*.userprefs# Build results[Dd]ebug/[Dd]ebugPublic/[Rr]elease/[Rr]eleases/x64/x86/build/bld/[Bb]in/[Oo]bj/# Visual Studio 2015 cache/options directory.vs/# Uncomment if you have tasks that create the project's static files in wwwroot#wwwroot/# MSTest test Results[Tt]est[Rr]esult*/[Bb]uild[Ll]og.*# NUNIT*.VisualState.xmlTestResult.xml# Build Results of an ATL Project[Dd]ebugPS/[Rr]eleasePS/dlldata.c# DNXproject.lock.jsonartifacts/*_i.c*_p.c*_i.h*.ilk*.meta*.obj*.pch*.pdb*.pgc*.pgd*.rsp*.sbr*.tlb*.tli*.tlh*.tmp*.tmp_proj*.log*.vspscc*.vssscc.builds*.pidb*.svclog*.scc# Chutzpah Test files_Chutzpah*# Visual C++ cache filesipch/*.aps*.ncb*.opendb*.opensdf*.sdf*.cachefile# Visual Studio profiler*.psess*.vsp*.vspx*.sap# TFS 2012 Local Workspace$tf/# Guidance Automation Toolkit*.gpState# ReSharper is a .NET coding add-in_ReSharper*/*.[Rr]e[Ss]harper*.DotSettings.user# JustCode is a .NET coding add-in.JustCode# TeamCity is a build add-in_TeamCity*# DotCover is a Code Coverage Tool*.dotCover# NCrunch_NCrunch_*.*crunch*.local.xmlnCrunchTemp_*# MightyMoose*.mm.*AutoTest.Net/# Web workbench (sass).sass-cache/# Installshield output folder[Ee]xpress/# DocProject is a documentation generator add-inDocProject/buildhelp/DocProject/Help/*.HxTDocProject/Help/*.HxCDocProject/Help/*.hhcDocProject/Help/*.hhkDocProject/Help/*.hhpDocProject/Help/Html2DocProject/Help/html# Click-Once directorypublish/# Publish Web Output*.[Pp]ublish.xml*.azurePubxml# TODO: Comment the next line if you want to checkin your web deploy settings# but database connection strings (with potential passwords) will be unencrypted*.pubxml*.publishproj# NuGet Packages*.nupkg# The packages folder can be ignored because of Package Restore**/packages/*# except build/, which is used as an MSBuild target.!**/packages/build/# Uncomment if necessary however generally it will be regenerated when needed#!**/packages/repositories.config# Microsoft Azure Build Outputcsx/*.build.csdef# Microsoft Azure Emulatorecf/rcf/# Microsoft Azure ApplicationInsights config fileApplicationInsights.config# Windows Store app package directoryAppPackages/BundleArtifacts/# Visual Studio cache files# files ending in .cache can be ignored*.[Cc]ache# but keep track of directories ending in .cache!*.[Cc]ache/# OthersClientBin/~$**~*.dbmdl*.dbproj.schemaview*.pfx*.publishsettingsnode_modules/orleans.codegen.cs# RIA/Silverlight projectsGenerated_Code/# Backup & report files from converting an old project file# to a newer Visual Studio version. Backup files are not needed,# because we have git ;-)_UpgradeReport_Files/Backup*/UpgradeLog*.XMLUpgradeLog*.htm# SQL Server files*.mdf*.ldf# Business Intelligence projects*.rdl.data*.bim.layout*.bim_*.settings# Microsoft FakesFakesAssemblies/# GhostDoc plugin setting file*.GhostDoc.xml# Node.js Tools for Visual Studio.ntvs_analysis.dat# Visual Studio 6 build log*.plg# Visual Studio 6 workspace options file*.opt# Visual Studio LightSwitch build output**/*.HTMLClient/GeneratedArtifacts**/*.DesktopClient/GeneratedArtifacts**/*.DesktopClient/ModelManifest.xml**/*.Server/GeneratedArtifacts**/*.Server/ModelManifest.xml_Pvt_Extensions# Paket dependency manager.paket/paket.exe# FAKE - F# Make.fake/
Should you try look into https://www.gitignore.io/
It's like a repo of .gitignore best practices in several languages and tools. Curiously the code sugested for visuaStudio/xamarinStudio is very similar to the generated code from Yeoman.