new: dev: [nextcloud] rewrite all database values in config file

This is dubious as if we need to change more than the password, than
usually this means we need a full reinstall mode of nextcloud.

nextcloud/hooks/sql_database-relation-joined

@@ -34,8 +34,23 @@ if [ -e "$CONFIGFILE" ] && grep "^  'dbuser' => '" "$CONFIGFILE" >/dev/null; the
     quoted_user="${quoted_user//\'/\\\\\'}"
     quoted_password="${PASSWORD//\\/\\\\\\\\\\}"
     quoted_password="${quoted_password//\'/\\\\\'}"
+    case "$TYPE" in
+        mysql)
+            nextcloud_type="mysql";;
+        postgres)
+            nextcloud_type="pgsql";;
+        *)
+            err "Unknown type '$TYPE' for database."
+            exit 1
+            ;;
+    esac
+
     sed -ri "s/^(  'dbuser' => ')(.*)(',)$/\1${quoted_user}\3/g;\
-             s/^(  'dbpassword' => ')(.*)(',)$/\1${quoted_password}\3/g;" "$CONFIGFILE"
+             s/^(  'dbpassword' => ')(.*)(',)$/\1${quoted_password}\3/g;\
+             s/^(  'dbtype' => ')(.*)(',)$/\1${nextcloud_type}\3/g;\
+             s/^(  'dbhost' => ')(.*)(',)$/\1${MASTER_TARGET_SERVICE_NAME}\3/g;\
+             " "$CONFIGFILE"
+
 else
 
     ## These variable are not used by current docker image after first install