woblerr/pgbackrest_exporter v0.12.0 on GitHub

Up pgBackRest version to 2.41 in docker image #32 #34.
Set metrics description to separate file #33.
Add metric for number of databases in the last backups #35.
- Add new metric pgbackrest_backup_last_databases - number of databases in the last full, differential or incremental backup.
- Add backrest.database-count-latest flag.
- Rename flag verbose.info to backrest.verbose-wal.
- Add backrest.verbose-wal and backrest.database-count-latest options to docker image - VERBOSE_WAL and DATABASE_COUNT_LATEST enviroument variables.
- Update to Go 1.18.
Merge since_last_completion_seconds metrics into one #36.
- The following metrics are merged into one pgbackrest_backup_since_last_completion_seconds: pgbackrest_backup_full_since_last_completion_seconds, pgbackrest_backup_diff_since_last_completion_seconds, pgbackrest_backup_incr_since_last_completion_seconds. The backup type is specified via the label backup_type.
Add metric for number of databases in backups #37.
- Add new metric pgbackrest_backup_databases - number of databases in backup.
- Add backrest.database-count flag.
- Add backrest.database-count option to docker image - DATABASE_COUNT enviroument variable.