Duplicacy

azinchen/duplicacy is a Docker image created to easily perform automated backups. It uses Duplicacy under the hood, and therefore supports:

Multiple storage backends: S3, Backblaze B2, Hubic, Dropbox, SFTP...
Client-side encryption
Deduplication
Multi-versioning
... and more generally, all the features that duplicacy has.

azinchen/duplicacy uses Duplicacy Command Line version 3.1.0.

Supported Architectures

The image supports multiple architectures such as amd64, x86, arm/v6, arm/v7 and arm64.

Starting a Duplicacy instance

You can run the following command to launch a standalone instance of Duplicacy on Docker:

docker run \
  -v path_to_data:/data \
  -e BACKUP_CRON="0 1 * * *" \
  -e SNAPSHOT_ID="id" \
  -e STORAGE_URL="url" \
  azinchen/duplicacy

Environment variables

Container images are configured using environment variables passed at runtime.

Parameter	Function
`BACKUP_CRON`	Set schedule for `duplicacy backup` command formatted for crontab file. The `duplicacy backup` command doesn't run if `BACKUP_CRON` is not set.
`PRUNE_CRON`	Set schedule for `duplicacy prune` command formatted for crontab file. The `duplicacy prune` command doesn't run if `PRUNE_CRON` is not set.
`BACKUP_END_CRON`	Set schedule for force killing of duplicacy backup process formatted for crontab file. The force killing of duplicacy backup process doesn't run if `BACKUP_END_CRON` is not set.
`GLOBAL_OPTIONS`	Set global options for each `duplicacy` command, see "Global options details" for details. Global options are not set by default.
`BACKUP_OPTIONS`	Set options for each `duplicacy backup` command, see `duplicacy backup` command description for details. Backup options are not set by default.
`PRUNE_OPTIONS`	Set options for each `duplicacy prune` command, see `duplicacy prune` command description for details. Prune options are not set by default.
`RUN_JOB_IMMEDIATELY`	Set to `yes` to run `duplicacy backup` and/or `duplicacy prune` command at container startup. The jobs don't start by default.
`SNAPSHOT_ID`	Set snapshot id, see `duplicacy init` command description for details.
`STORAGE_URL`	Set storage url, see `duplicacy init` command description for details. Duplicacy supports different storage providers, see "Supported storage backends" for details. Login credentials for storage url should be set using environment variables, see "Passwords, credentials and environment variables" for details.
`JOB_RANDOM_DELAY`	Set maximum value of delay before job startup, in seconds. Jobs run without delay by default.
`PRUNE_KEEP_POLICIES`	Set keep options for `duplicacy prune` command, see `duplicacy prune` command description for details. Several keep options can be set using semicolon as delimeter.
`FILTER_PATTERNS`	Set filter patterns, see "Filters/Include exclude patterns" for details. Several filter patterns can be defined using semicolon as delimeter.
`DUPLICACY_PASSWORD`	Enable encryption for storage and set password, see `duplicacy init` command description for details. Encryption is disabled by default.
`EMAIL_HOSTNAME_ALIAS`	Set host alias in email reports. Hostname of container is used by default.
`EMAIL_FROM`	Set sender email.
`EMAIL_FROM_NAME`	Set sender name.
`EMAIL_TO`	Set recipient email.
`EMAIL_USE_TLS`	Enable encryption in session with SMTP server.
`EMAIL_SMTP_SERVER`	Set SMTP server address.
`EMAIL_SMTP_SERVER_PORT`	Set SMTP server port.
`EMAIL_SMTP_LOGIN`	Set SMTP server login.
`EMAIL_SMTP_PASSWORD`	Set SMTP server password.
`EMAIL_LOG_LINES_IN_BODY`	Set the number of lines from the beginning and from the end of the log and put it in the body of the email report. Default value is `10`.
`SEND_REPORT_LEVEL`	Send email reports with level lower than defined. Possible values are `all` or `error`. Default value is `all`.
`TZ`	Set time zone and daylight-saving time data. Possible values can be found here. Default value is `UTC`.

Disclaimer

This project uses Duplicacy Command Line version, which is free for personal use but requires purchasing a licence for non-trial commercial use. See the detailed terms here.

Issues