Make YAOOK_BACKUP_CREATOR_ETCD_HOST customizable
The environment variable YAOOK_BACKUP_CREATOR_ETCD_HOST is set via Helm value.
Don't use a default value for it since the backup-creator has a functionality for auto-detecting the etcd endpoint 1.
The environment variable YAOOK_BACKUP_CREATOR_ETCD_HOST is set via Helm value.
Don't use a default value for it since the backup-creator has a functionality for auto-detecting the etcd endpoint 1.