fix(termix-install.sh): add tmpfiles.d persistence and systemd PIDFile path (#14350)

install/termix-install.sh

@@ -101,6 +101,13 @@ sed -i 's|/app/nginx|/opt/termix/nginx|g' /etc/nginx/nginx.conf
 sed -i 's|listen ${PORT};|listen 80;|g' /etc/nginx/nginx.conf
 
 mkdir -p /tmp/nginx
+echo "d /tmp/nginx 0755 nobody nobody -" > /etc/tmpfiles.d/nginx-termix.conf
+mkdir -p /etc/systemd/system/nginx.service.d/
+cat > /etc/systemd/system/nginx.service.d/pidfile.conf << EOF
+[Service]
+PIDFile=/tmp/nginx/nginx.pid
+EOF
+systemctl daemon-reload
 rm -f /etc/nginx/sites-enabled/default
 nginx -t
 systemctl reload nginx