mirror of
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.dockerignore | ||
backup.sh | ||
docker-compose.yaml | ||
Dockerfile.raspbian | ||
Dockerfile.ubuntu | ||
entrypoint.sh | ||
LICENSE | ||
Makefile | ||
Readme.md | ||
restore.sh | ||
test.sh | ||
verify.sh |
Duplicity Backup
Instructions
Mount any directories you'd like to back up as a volume and run
Env Variables
Variable | Default | Description |
---|---|---|
AWS_ACCESS_KEY_ID | Required for writing to S3 | |
AWS_DEFAULT_REGION | Required for writing to S3 | |
AWS_SECRET_ACCESS_KEY | Required for writing to S3 | |
BACKUP_DEST | file:///backups | Destination to store backups (See duplicity documenation) |
BACKUP_NAME | backup | What the name for the backup should be. If using a single store for multiple backups, make sure this is unique |
CLEANUP_COMMAND | An optional duplicity command to execute after backups to clean older ones out (eg. "remove-all-but-n-full 2") | |
CRON_SCHEDULE | If you want to backup on a schedule, provide it here. By default we just backup once and exit | |
FTP_PASSWORD | Required if using FTP for backups | |
GPG_KEY_ID | The ID of the key you wish to use. See Encryption section below | |
OPT_ARGUMENTS | Any additional arguments to provide to the duplicity backup command. These can also be provided as additional arguments via the command line | |
PASSPHRASE | Correct.Horse.Battery.Staple | Passphrase to use for GPG |
PATH_TO_BACKUP | /data | The path to the directory you wish to backup. If you want to backup multiple, see the tip below |
SKIP_ON_START | Skips backup on start if set to "true" | |
VERIFY_CRON_SCHEDULE | If you want to verify your backups on a schedule, provide it here |
Encryption
Add a ro mount to your ~/.gnupg
directory and then provide the GPG_KEY_ID
as an environment variable. The key will be used to sign and encrypt your files before sending to the backup destination.
Need to generate a key? Install gnupg
and run gnupg --gen-key
Tips
Backing up more than one source directory
Duplicity only accepts one target, however you can refine that selection with --exclude
and --include
arguments. The below example shows how this can be used to select multiple backup sources
OPT_ARGUMENTS="--include /home --include /etc --exclude '**'"
PATH_TO_BACKUP="/"
Backing up from another container
Mount all volumes from your existing container with --volumes-from
and then back up by providing the paths to those volumes. If there are more than one volumes, you'll want to use the above tip for mulitple backup sources
To Do
- Some easy way to trigger restoration (can now exec /restore.sh)
- Automatic restoration if there is no source data