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docker-volume-backup/docs/NOTIFICATION-TEMPLATES.md
Frederik Ring 5c04e11f10
Add support for Azure Blob Storage (#171) 
* Scaffold Azure storage backend that does nothing yet

* Implement copy for Azure Blob Storage

* Set up automated testing for Azure Storage

* Implement pruning for Azure blob storage

* Add documentation for Azure Blob Storage

* Add support for remote path

* Add azure to notifications doc

* Tidy go.mod file

* Allow use of managed identity credential

* Use volume in tests

* Auto append trailing slash to endpoint if needed, clarify docs, tidy mod file
2023-01-11 21:40:48 +01:00

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Notification templates reference

In order to customize title and body of notifications you'll have to write a go template and mount it inside the /etc/dockervolumebackup/notifications.d/ directory.

Configuration, data about the backup run and helper functions will be passed to this template, this page documents them fully.

Data

Here is a list of all data passed to the template:

  • Config: this object holds the configuration that has been passed to the script. The field names are the name of the recognized environment variables converted in PascalCase. (e.g. BACKUP_STOP_CONTAINER_LABEL becomes BackupStopContainerLabel)
  • Error: the error that made the backup fail. Only available in the title_failure and body_failure templates
  • Stats: objects that holds stats regarding script execution. In case of an unsuccessful run, some information may not be available.
    • StartTime: time when the script started execution
    • EndTime: time when the backup has completed successfully (after pruning)
    • TookTime: amount of time it took for the backup to run. (equal to EndTime - StartTime)
    • LockedTime: amount of time it took for the backup to acquire the exclusive lock
    • LogOutput: full log of the application
    • Containers: object containing stats about the docker containers
      • All: total number of containers
      • ToStop: number of containers matched by the stop rule
      • Stopped: number of containers successfully stopped
      • StopErrors: number of containers that were unable to be stopped (equal to ToStop - Stopped)
    • BackupFile: object containing information about the backup file
      • Name: name of the backup file (e.g. backup-2022-02-11T01-00-00.tar.gz)
      • FullPath: full path of the backup file (e.g. /archive/backup-2022-02-11T01-00-00.tar.gz)
      • Size: size in bytes of the backup file
    • Storages: object that holds stats about each storage
      • Local, S3, WebDAV, Azure or SSH:
        • Total: total number of backup files
        • Pruned: number of backup files that were deleted due to pruning rule
        • PruneErrors: number of backup files that were unable to be pruned

Functions

Some formatting and helper functions are also available:

  • formatTime: formats a time object using RFC3339 format (e.g. 2022-02-11T01:00:00Z)
  • formatBytesBin: formats an amount of bytes using powers of 1024 (e.g. 7055258 bytes will be 6.7 MiB)
  • formatBytesDec: formats an amount of bytes using powers of 1000 (e.g. 7055258 bytes will be 7.1 MB)
  • env: returns the value of the environment variable of the given key if set