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<h1 style='font-family: Malgun Gothic, Consolas; font-size: 20pt; color: #006699; text-align: center; font-weight: bold'>.NET Core 2.2/3.0 웹 프로젝트를 IIS에서 호스팅(Inproc, out-of-proc)하는 방법 - AspNetCoreModuleV2 소개</h1>

지난 글에서 이미 한번 방법을 설명했는데요. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
ASP.NET Core (EXE) 프로세스가 IIS에서 호스팅되는 방법 - ASP.NET Core Module(AspNetCoreModule)
; <a target='tab' href='http://www.sysnet.pe.kr/2/0/11436'>http://www.sysnet.pe.kr/2/0/11436</a>
</pre>
 
어느새 2.2가 나오고는 AspNetCoreModule도 새 버전으로 AspNetCoreModuleV2가 추가되었습니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
ASP.NET Core In Process Hosting on IIS with ASP.NET Core 2.2
; <a target='tab' href='https://weblog.west-wind.com/posts/2019/Mar/16/ASPNET-Core-Hosting-on-IIS-with-ASPNET-Core-22'>https://weblog.west-wind.com/posts/2019/Mar/16/ASPNET-Core-Hosting-on-IIS-with-ASPNET-Core-22</a>

Current .NET Core Hosting Bundle installer (direct download)
; <a target='tab' href='https://www.microsoft.com/net/permalink/dotnetcore-current-windows-runtime-bundle-installer'>https://www.microsoft.com/net/permalink/dotnetcore-current-windows-runtime-bundle-installer</a>
</pre>
 
AspNetCoreModuleV2가 내세우는 특장점이라면, 바로 "InProcess" 활성화를 지원한다는 것입니다. 예전에는 w3wp.exe가 단순한 Reverse Proxy로만 동작하고 Kestral 웹 서버에 호스팅 중인 ASP.NET Core 프로세스에서 웹 응용 프로그램이 구동되는 방식이어서 별도의 TCP 소켓 통신이 발생하는 오버헤드가 있었는데요. AspNetCoreModuleV2는 w3wp.exe 프로세스 내부에 ASP.NET Core 웹 응용 프로그램을 직접 로드할 수 있는 모드를 추가함으로써 성능을 더욱 향상시켰다는데 의미가 있습니다. 
 
실제로 간단하게 구성해 볼까요? ^^ 우선, ".NET Core 3" 프로젝트를 생성 후 web.config 파일을 추가하고 AspNetCoreModuleV2 모듈 및 그것이 사용할 설정을 추가합니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;configuration&gt;
 &lt;!-- To customize the asp.net core module uncomment and edit the following section. 
 For more info see https://go.microsoft.com/fwlink/?linkid=838655 --&gt;
 &lt;system.webServer&gt;
 &lt;handlers&gt;
 &lt;remove name="aspNetCore" /&gt;
 &lt;add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" /&gt;
 &lt;/handlers&gt;
 &lt;aspNetCore processPath="%LAUNCHER_PATH%" arguments="%LAUNCHER_ARGS%" stdoutLogEnabled="false"
 stdoutLogFile=".\logs\stdout" hostingModel="InProcess"&gt;
 &lt;environmentVariables&gt;
 &lt;environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" /&gt;
 &lt;/environmentVariables&gt;
 &lt;/aspNetCore&gt;
 &lt;/system.webServer&gt;
&lt;/configuration&gt;
</pre>
 
이제 "dotnet publish" 명령어로 배포를 하게 되면, 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
dotnet.exe publish /p:Configuration=Release -r win-x64
</pre>
 
".\bin\Release\netcoreapp3.0\win-x64\publish" 하위 폴더에 다음과 같이 web.config이 바뀐 것을 볼 수 있습니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;configuration&gt;
 &lt;!-- To customize the asp.net core module uncomment and edit the following section. 
 For more info see https://go.microsoft.com/fwlink/?linkid=838655 --&gt;
 &lt;system.webServer&gt;
 &lt;handlers&gt;
 &lt;remove name="aspNetCore" /&gt;
 &lt;add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" /&gt;
 &lt;/handlers&gt;
 &lt;aspNetCore processPath=".\Core3Web.exe" arguments="" stdoutLogEnabled="false"
 stdoutLogFile=".\logs\stdout" hostingModel="InProcess"&gt;
 &lt;environmentVariables&gt;
 &lt;environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" /&gt;
 &lt;/environmentVariables&gt;
 &lt;/aspNetCore&gt;
 &lt;/system.webServer&gt;
&lt;/configuration&gt;
&lt;!--ProjectGuid: AD6EE067-E62F-4C8F-9590-CBC9CC3A1E50--&gt;
</pre>
 
여기까지 했으면 응용 프로그램으로써 할 일은 모두 끝입니다. 남은 작업은 ".\bin\Release\netcoreapp3.0\win-x64\publish" 폴더를 IIS 웹 서버에 복사해 주면 되는데, 이때 해당 웹 서버에는 .NET Core가 설치될 필요는 없지만 "ASP.NET Core/.NET Core: Runtime &amp; Hosting Bundle"은 설치해야 합니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
Download .NET Core 3.0
; <a target='tab' href='https://dotnet.microsoft.com/download/dotnet-core/3.0'>https://dotnet.microsoft.com/download/dotnet-core/3.0</a>

ASP.NET Core/.NET Core: Runtime & Hosting Bundle
; <a target='tab' href='https://dotnet.microsoft.com/download/thank-you/dotnet-runtime-3.0.0-windows-hosting-bundle-installer'>https://dotnet.microsoft.com/download/thank-you/dotnet-runtime-3.0.0-windows-hosting-bundle-installer</a>
</pre>
 
끝입니다. 이후 IIS 웹 사이트 설정만 해당 폴더로 연결되어 있으면 웹 브라우저를 통해 ASP.NET Core 웹 응용 프로그램이 w3wp.exe 단독으로 호스팅하는 것을 볼 수 있습니다. (이로 인해 V1 모듈(AspNetCoreModule)에서는 ASPNETCORE_PORT와 같은 환경 변수가 필요했지만 V2에서는 더 이상 사용하지 않게 됩니다.) 
 
<hr style='width: 50%' /> 
 
물론 이전처럼 분리된 프로세스로 실행하는 것도 가능합니다. 이를 위해 web.config의 hostingModel 옵션만 OutOfProcess로 바꾸면 됩니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
&lt;aspNetCore processPath="%LAUNCHER_PATH%" arguments="%LAUNCHER_ARGS%" stdoutLogEnabled="false"
 stdoutLogFile=".\logs\stdout" hostingModel="OutOfProcess"&gt;
</pre>
 
좀 더 자세한 사항은 아래의 공식 문서에서 확인할 수 있습니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
ASP.NET Core Module
; <a target='tab' href='https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/aspnet-core-module'>https://learn.microsoft.com/en-us/aspnet/core/host-and-deploy/aspnet-core-module</a>
</pre>
 
<hr style='width: 50%' /> 
 
참고로 OutOfProcess로 호스팅되는 경우, w3wp.exe에는 다음과 같은 식의 lm 결과를 통해, 
 
<pre style='height: 400px; margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
start end module name
000001f3`852c0000 000001f3`852fb000 iisres (no symbols) 
00007ff7`b1280000 00007ff7`b128b000 w3wp (pdb symbols) e:\symbols\w3wp.pdb\167FBC957A3EC18C5796F4C3C7E1AF6F1\w3wp.pdb
00007ff8`8a650000 00007ff8`8a6a4000 aspnetcorev2 (deferred) 
00007ff8`8a6b0000 00007ff8`8a703000 iiscore (deferred) 
00007ff8`8aa20000 00007ff8`8aa64000 aspnetcore (deferred) 
00007ff8`8ac30000 00007ff8`8acd8000 webengine4 (deferred) 
00007ff8`8ade0000 00007ff8`8ae14000 webdav (deferred) 
00007ff8`8b120000 00007ff8`8b146000 isapi (deferred) 
00007ff8`8c200000 00007ff8`8c212000 iiswsock (deferred) 
00007ff8`8d970000 00007ff8`8d985000 wshbth (deferred) 
00007ff8`90470000 00007ff8`9047c000 aspnet_filter (deferred) 
00007ff8`90520000 00007ff8`9053c000 iisfcgi (deferred) 
00007ff8`90700000 00007ff8`9072e000 iisfreb (deferred) 
00007ff8`90840000 00007ff8`90856000 filter (deferred) 
00007ff8`90860000 00007ff8`90885000 iisetw (deferred) 
00007ff8`90e20000 00007ff8`90e32000 winrnr (deferred) 
00007ff8`90e40000 00007ff8`90e5b000 pnrpnsp (deferred) 
00007ff8`90e60000 00007ff8`90e77000 NapiNSP (deferred) 
00007ff8`90ea0000 00007ff8`90ead000 warmup (deferred) 
00007ff8`90f30000 00007ff8`90f3a000 validcfg (deferred) 
00007ff8`90f70000 00007ff8`90f80000 cgi (deferred) 
00007ff8`910e0000 00007ff8`910eb000 iisreqs (deferred) 
00007ff8`910f0000 00007ff8`91101000 custerr (deferred) 
00007ff8`91110000 00007ff8`9111b000 logcust (deferred) 
00007ff8`91fa0000 00007ff8`91fb0000 modrqflt (deferred) 
00007ff8`91fb0000 00007ff8`91fc0000 authanon (deferred) 
00007ff8`91fc0000 00007ff8`91fcf000 static (deferred) 
00007ff8`920c0000 00007ff8`920ce000 iis_ssi (deferred) 
00007ff8`920d0000 00007ff8`920da000 redirect (deferred) 
00007ff8`92eb0000 00007ff8`92ebb000 protsup (deferred) 
00007ff8`99ee0000 00007ff8`99eeb000 dirlist (deferred) 
00007ff8`9a320000 00007ff8`9a332000 cachhttp (deferred) 
00007ff8`9a360000 00007ff8`9a380000 w3dt (deferred) 
00007ff8`9a5b0000 00007ff8`9a5ba000 defdoc (deferred) 
00007ff8`a0e60000 00007ff8`a0ea2000 mlang (deferred) 
00007ff8`a1230000 00007ff8`a12c8000 webio (deferred) 
00007ff8`a2400000 00007ff8`a240f000 httpapi (deferred) 
00007ff8`a26d0000 00007ff8`a278d000 ucrtbase_clr0400 (deferred) 
00007ff8`a2b50000 00007ff8`a2b5b000 ktmw32 (deferred) 
00007ff8`a2b90000 00007ff8`a2ba6000 VCRUNTIME140_CLR0400 (deferred) 
00007ff8`a2d30000 00007ff8`a2d3c000 secur32 (deferred) 
00007ff8`a2d90000 00007ff8`a2e0d000 nativerd (deferred) 
00007ff8`a2e80000 00007ff8`a2ece000 iisutil (deferred) 
00007ff8`a2f40000 00007ff8`a2f49000 cachtokn (deferred) 
00007ff8`a3a40000 00007ff8`a4575000 clr (deferred) 
00007ff8`abd20000 00007ff8`abd2b000 cachfile (deferred) 
00007ff8`ae2b0000 00007ff8`ae35a000 mscoreei (deferred) 
00007ff8`ae8a0000 00007ff8`ae905000 mscoree (deferred) 
00007ff8`aeda0000 00007ff8`aedaa000 rasadhlp (deferred) 
00007ff8`aedd0000 00007ff8`aee50000 FWPUCLNT (deferred) 
00007ff8`aee50000 00007ff8`aef5a000 winhttp (deferred) 
00007ff8`b2dd0000 00007ff8`b2dda000 version (deferred) 
00007ff8`b3260000 00007ff8`b326b000 winnsi (deferred) 
00007ff8`b3b10000 00007ff8`b3b20000 websocket (deferred) 
00007ff8`b4340000 00007ff8`b4376000 xmllite (deferred) 
00007ff8`b44c0000 00007ff8`b44dd000 nlaapi (deferred) 
00007ff8`b46b0000 00007ff8`b46c8000 w3wphost (pdb symbols) e:\symbols\w3wphost.pdb\18462E890C1A7E73A1A70DA1953EF7DE1\w3wphost.pdb
00007ff8`b48f0000 00007ff8`b48f9000 cachuri (deferred) 
00007ff8`b6390000 00007ff8`b639f000 loghttp (deferred) 
00007ff8`b63a0000 00007ff8`b63ac000 w3tp (deferred) 
00007ff8`b6b10000 00007ff8`b6b22000 kernel_appcore (deferred) 
00007ff8`b78f0000 00007ff8`b7923000 ntmarta (deferred) 
00007ff8`b7cc0000 00007ff8`b7cf4000 rsaenh (deferred) 
00007ff8`b8050000 00007ff8`b808b000 IPHLPAPI (deferred) 
00007ff8`b8090000 00007ff8`b815b000 dnsapi (deferred) 
00007ff8`b83b0000 00007ff8`b841a000 mswsock (deferred) 
00007ff8`b85a0000 00007ff8`b85b8000 cryptsp (deferred) 
00007ff8`b85c0000 00007ff8`b85cc000 CRYPTBASE (deferred) 
00007ff8`b8680000 00007ff8`b86bb000 ntasn1 (deferred) 
00007ff8`b86c0000 00007ff8`b86e7000 ncrypt (deferred) 
00007ff8`b89f0000 00007ff8`b89fa000 dpapi (deferred) 
00007ff8`b8ab0000 00007ff8`b8ae2000 sspicli (deferred) 
00007ff8`b8af0000 00007ff8`b8b1e000 userenv (deferred) 
00007ff8`b8bf0000 00007ff8`b8c17000 bcrypt (deferred) 
00007ff8`b8c20000 00007ff8`b8d76000 crypt32 (deferred) 
00007ff8`b8d80000 00007ff8`b8e8b000 gdi32full (deferred) 
00007ff8`b8e90000 00007ff8`b8f12000 bcryptPrimitives (deferred) 
00007ff8`b8f20000 00007ff8`b8fbd000 msvcp_win (deferred) 
00007ff8`b9130000 00007ff8`b9230000 ucrtbase (deferred) 
00007ff8`b9230000 00007ff8`b94fe000 KERNELBASE (pdb symbols) e:\symbols\kernelbase.pdb\464250F2BF052A1D1D9DCE321151C5711\kernelbase.pdb
00007ff8`b9500000 00007ff8`b9522000 win32u (deferred) 
00007ff8`b9530000 00007ff8`b9538000 psapi (deferred) 
00007ff8`b9540000 00007ff8`b956a000 gdi32 (deferred) 
00007ff8`b97d0000 00007ff8`b988d000 kernel32 (pdb symbols) e:\symbols\kernel32.pdb\9CF2BCBC4D0E03503C68E569FAA6DC931\kernel32.pdb
00007ff8`b9b50000 00007ff8`b9bfe000 advapi32 (deferred) 
00007ff8`b9c00000 00007ff8`b9ca9000 clbcatq (deferred) 
00007ff8`b9ce0000 00007ff8`b9d7e000 msvcrt (deferred) 
00007ff8`b9d80000 00007ff8`b9ea5000 rpcrt4 (deferred) 
00007ff8`b9eb0000 00007ff8`b9eb8000 nsi (deferred) 
00007ff8`b9ec0000 00007ff8`b9f6d000 SHCore (deferred) 
00007ff8`b9f70000 00007ff8`b9fc5000 shlwapi (deferred) 
00007ff8`b9fd0000 00007ff8`ba170000 user32 (deferred) 
00007ff8`ba1a0000 00007ff8`ba26d000 oleaut32 (deferred) 
00007ff8`ba270000 00007ff8`ba5c4000 combase (deferred) 
00007ff8`ba630000 00007ff8`ba75a000 ole32 (deferred) 
00007ff8`ba760000 00007ff8`ba7fc000 sechost (deferred) 
00007ff8`bacd0000 00007ff8`bb414000 shell32 (deferred) 
00007ff8`bb420000 00007ff8`bb48b000 ws2_32 (deferred) 
00007ff8`bb4d0000 00007ff8`bb6c8000 ntdll (pdb symbols) e:\symbols\ntdll.pdb\CDE75D039306834203EBD8D4E7D503691\ntdll.pdb
</pre>
 
aspnetcorev2가 중계만 하는 것을 알 수 있습니다. 또한 이것을 대상으로 sos 확장 명령어를 실행하면 다음과 같은 결과들만 볼 수 있습니다. 
 
<pre style='margin: 10px 0px 10px 10px; padding: 10px 0px 10px 10px; background-color: #fbedbb; overflow: auto; font-family: Consolas, Verdana;' >
0:000> .loadby sos clr

0:000> !name2ee *!ANY
Failed to request module list.

0:000> !dumpheap
Error requesting GC Heap data
Unable to build snapshot of the garbage collector state

0:000> !threads
Failed to request ThreadStore
</pre>

<hr />[이 글에 대해서 여러분들과 의견을 공유하고 싶습니다. 틀리거나 미흡한 부분 또는 의문 사항이 있으시면 언제든 댓글 남겨주십시오.]

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