Update service user

chutney.service

@@ -8,6 +8,7 @@ WorkingDirectory=$workingDirectory
 ExecStart=$execStart
 Restart=on-failure
 SyslogIdentifier=chutney
+User=$user
 
 [Install]
 WantedBy=multi-user.target

install

@@ -5,6 +5,7 @@ import sys
 
 from string import Template
 from subprocess import check_call
+from subprocess import check_output
 
 EXEC       = 'chutney.py'
 SERVICE    = 'chutney.service'
@@ -15,13 +16,15 @@ SERVICE_TEMPLATE = os.path.join(CURRENT_DIR, SERVICE)
 SERVICE_FILE     = os.path.join(SYSTEM_DIR, SERVICE)
 PYTHON           = sys.executable
 EXEC_START       = f'{PYTHON} {EXEC}'
+USER             = check_output(['logname']).decode('utf-8').strip()
 
 with open(SERVICE_TEMPLATE) as f:
     serviceTemplate = Template(f.read())
 
 serviceFile = serviceTemplate.substitute(
     workingDirectory=CURRENT_DIR,
-    execStart=EXEC_START
+    execStart=EXEC_START,
+    user=USER
 )
 
 with open(SERVICE_FILE, 'w') as f: