I’m trying to install .NET Core(3.1) app in Centos8 using steps given in MS enter .
Service File as per Microsoft document /etc/systemd/system/kestrel-dotnetapp.service
[Unit]
Description= .NET Web API App for centos
[Service]
WorkingDirectory=/var/Application/netcoreapp31
ExecStart=/usr/local/dotnet /var/Application/netcoreapp31/helloapp.dll
Restart=always
# Restart service after 10 seconds if the dotnet service crashes:
RestartSec=10
KillSignal=SIGINT
SyslogIdentifier=dotnetapp
User=user
Environment=ASPNETCORE_ENVIRONMENT=Production
Environment=DOTNET_PRINT_TELEMETRY_MESSAGE=false
[Install]
WantedBy=multi-user.target
When i do > sudo systemctl start kestrel-dotnetapp.service
am getting error.
Jun 04 22:51:28 hostname systemd[1827]: kestrel-dotnetapp.service: Failed to execute command: Permission denied
Jun 04 22:51:28 hostname systemd[1827]: kestrel-dotnetapp.service: Failed at step EXEC spawning /usr/local/dotnet: Permission denied
— Subject: Process /usr/local/dotnet could not be executed
— Defined-By: systemd
Find below ls -la :
[user@hostname dotnet]$ ls -la
total 108
drwxr-xr-x. 4 root root 94 Apr 22 09:34 .
drwxr-xr-x. 14 root root 154 Jun 4 21:11 ..
-rwxr-xr-x. 1 root root 73048 Apr 22 09:32 dotnet
drwxr-xr-x. 3 root root 17 Apr 22 09:34 host
-rw-r--r--. 1 root root 1116 Apr 22 09:29 LICENSE.txt
drwxr-xr-x. 4 root root 67 Apr 22 09:34 shared
-rw-r--r--. 1 root root 31330 Apr 22 09:29 ThirdPartyNotices.txt
My application deliverables folder
[user@hostname Application]$ ls -la
total 8
drwxr-xr-x. 3 root root 26 Jun 4 20:53 .
drwxr-xr-x. 22 root root 4096 Jun 4 20:53 ..
drwxr-xr-x. 2 777 user 4096 Jun 4 20:45 netcoreapp31
2
Answers
Found that service is starting when we change path of ExecStart to
ExecStart=/usr/local/dotnet/dotnet
. No idea why microsoft blog said tillExecStart=/usr/bin/dotnet
is enough !PS: Also if the Linux is SE service files shouldn't be in /home directory
After hours and hours of searching… the answer above is valid
even for Dotnet 5.0 application with default installation and default user pi with custom publish folder: