feat(backup): add environment variables for app name and backup retention in cron job and fix quoting in backup script

terraform/modules/utils/scw_rclone/main.tf

@@ -121,6 +121,14 @@ resource "kubernetes_cron_job_v1" "backup_job" {
                 name  = "BUCKET_NAME"
                 value = var.bucket_name
               }
+              env {
+                name  = "APP_NAME"
+                value = var.app_name
+              }
+              env {
+                name  = "BACKUP_RETENTION"
+                value = var.retention_days
+              }
               command = ["/bin/sh", "-c"]
               args    = ["/tmp/scripts/backup.sh"]
               security_context {

terraform/modules/utils/scw_rclone/resources/backup.sh

@@ -26,7 +26,7 @@ tar -zcvpf /backup/$APP_NAME-files-`date +\"%Y%m%d\"`.tar.gz /files
 
 # Remove old backups
 BACKUP_FILE_PATTERN="$APP_NAME-files-*.tar.gz"
-find /backup -type f -name $BACKUP_FILE_PATTERN -mtime +$BACKUP_RETENTION | xargs --no-run-if-empty rm
+find /backup -type f -name "$BACKUP_FILE_PATTERN" -mtime +$BACKUP_RETENTION | xargs --no-run-if-empty rm
 
 # Upload to Scaleway
 /usr/local/bin/rclone --config=/tmp/rclone.conf sync --progress /backup scaleway:$BUCKET_NAME/$APP_NAME-backup"