Plan:
- [x] Deploy maven indexer exporter services (one per maven indexes: maven-central, ...)
- [x] Deploy frontend to expose maven indexer exporter results (*.fld files)
- [x] Deploy maven worker services: lister + loader
- [ ] Prepare maven-exporter node to have enough disk to receive indices
- [ ] scheduler (saatchi): Restart swh-scheduler-schedule-recurrent service (so maven tasks are scheduled)
- [ ] Add maven central to the maven listing
- [ ] Checks