install software-properties-common

on contabo,

root@vmi232343:~# add-apt-repository

Command 'add-apt-repository' not found, but can be installed with:

apt install software-properties-common

scripts/cloudron-setup

@@ -139,6 +139,12 @@ echo " Join us at https://forum.cloudron.io for any questions."
 echo ""
 
 if [[ "${initBaseImage}" == "true" ]]; then
+    echo "=> Installing software-properties-common"
+    if ! apt-get install software-properties-common &>> "${LOG_FILE}"; then
+        echo "Could not install software-properties-common (for add-apt-repository below). See ${LOG_FILE}"
+        exit 1
+    fi
+
     echo "=> Ensure required apt sources"
     if ! add-apt-repository universe &>> "${LOG_FILE}"; then
         echo "Could not add required apt sources (for nginx-full). See ${LOG_FILE}"