radicale private cert

src/freedombone-app-radicale

     echo '    }' >> /etc/nginx/sites-available/radicale
     echo '}' >> /etc/nginx/sites-available/radicale
 
-    sed -i "s|radicale.crt|${DEFAULT_DOMAIN_NAME}.crt|g" /etc/nginx/sites-available/radicale
-    sed -i "s|radicale.pem|${DEFAULT_DOMAIN_NAME}.pem|g" /etc/nginx/sites-available/radicale
+    if [ -f /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.pem ]; then
+        sed -i "s|radicale.crt|${DEFAULT_DOMAIN_NAME}.pem|g" /etc/nginx/sites-available/radicale
+        sed -i "s|radicale.pem|${DEFAULT_DOMAIN_NAME}.pem|g" /etc/nginx/sites-available/radicale
+    fi
+    sed -i "s|radicale.key|${DEFAULT_DOMAIN_NAME}.key|g" /etc/nginx/sites-available/radicale
     sed -i "s|radicale.dhparam|${DEFAULT_DOMAIN_NAME}.dhparam|g" /etc/nginx/sites-available/radicale
 
     # create a certificate