⚠️ This repository is no longer in development

wrestic is now part of K8up itself. The codebase has been migrated to https://github.com/k8up-io/k8up, please open issues there.

Wrestic

PLEASE NOTE: THIS REPOSITORY HAS BEEN ARCHIVED.

wrestic has been merged into K8up 2.0 and is available as k8up restic command.

Wrapper for restic. This is the backup runner of k8up.

Configuration

All the configuration needed can be done via environment variables:

• HOSTNAME overwrite the hostname used for the backup
• KEEP_LAST amount of last backups that should be kept
• KEEP_HOURLY amount of hourly backups that should be kept
• KEEP_DAILY amount of daily backups that should be kept
• KEEP_WEEKLY amount of weekly backups that should be kept
• KEEP_MONTHLY amount of monthly backups that should be kept
• KEEP_YEARLY amount of yearly backups that should be kept
• KEEP_TAG what tags should be kept Not yet implemented
• PROM_URL Prometheus push gateway url
• BACKUP_DIR directory that should get backed up, default: /data
• STATS_URL url where additional after backup stats get pushed to
• BACKUP_LIST_TIMEOUT set the timeout for listing snapshots, default 30 secs
• RESTORE_S3ENDPOINT s3 endpoint where the tar.gz with all files should be uploaded, example http://localhost:9000/bucketName
• RESTORE_ACCESSKEYID s3 accesKeyID for the restore s3 endpoint
• RESTORE_SECRETACCESSKEY s3 secretAccessKey for the restore s3 endpoint
• BACKUPCOMMAND_ANNOTATION name of the backup command annotation, default: k8up.syn.tools/backupcommand
• FILEEXTENSION_ANNOTATION name of the file extension annotation, default: k8up.syn.tools/file-extension
• RESTIC_OPTIONS additional options, separated with a comma (i.e. key=value,key2=value2,…), to pass on to restic, see --option
• RESTIC_BINARY defines the restic binary to use, default: /usr/local/bin/restic

Configuration for the Restic repository also has to be provided via env variables, see the official docs.

Execution

First build the container:

cd cmd/wrestic
docker build -t wrestic/wrestic .

Then run the container and mount the folders you'd like to be backed up to /data:

docker run -e "HOSTNAME=test" -e "PROM_URL=http://192.168.1.43:9091" -v /path/to/back:/data/ wrestic/wrestic

Run a check of the repository:

docker run -e "HOSTNAME=test" -e "PROM_URL=http://192.168.1.43:9091" -v /path/to/back:/data/ wrestic/wrestic -check

Run a restore to disk:

docker run -e "HOSTNAME=test" -v /path/for/restore:/restore wrestic -restore -restoreType folder

Run a restore to disk with a filter:

docker run -e "HOSTNAME=test" -v /patch/for/restore:/restore wrestic -restore -restoreType folder -restoreFilter /var/mysql

Run a restore to S3:

docker run -e "HOSTNAME=test" -e "RESTORE_S3ENDPOINT=http://localhost:9000/bucketName" -e "RESTORE_ACCESSKEYID=1324" -e "RESTORE_SECRETACCESSKEY=secret" wrestic -restore -restoreType s3

The container will exit after the job is done. If a valid PROM_URL is provided, it will push metrics there.

Nonroot Image

There is a variant of this image which runs as a non-root user. Build it with the following target:

docker build --target nonroot -t wrestic/wrestic .

Integration Tests

To just run the integration tests, you can execute make integration-test.

If you want to run the integration tests in your IDE, you need to run make integration-test-setup first, and you need to define the following environment variables.

# adjust to where you checked out the wrestic source code
RESTIC_PATH=/home/<USER>/src/vshn/wrestic/.test/restic
RESTIC_BINARY=/home/<USER>/src/vshn/wrestic/.test/restic
BACKUP_DIR=/home/<USER>/src/vshn/wrestic/.test/backup/
RESTORE_DIR=/home/<USER>/src/vshn/wrestic/.test/restore/

RESTIC_PASSWORD=repopw
RESTIC_REPOSITORY=s3:http://localhost:9000/test
RESTORE_S3ENDPOINT=http://localhost:9000/restore
AWS_SECRET_ACCESS_KEY=secretkey
AWS_ACCESS_KEY_ID=accesskey
RESTORE_ACCESSKEYID=accesskey
RESTORE_SECRETACCESSKEY=secretkey
STATS_URL=http://localhost:8091

The stop all background services (like Minio) and remove all cached binaries, run make clean.