restic_kumar_connector/Readme.md

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# restic kumar connector
This is a restic connector for kumar. It allows you to check if you backups did run in time.
## Usage
### Running the Container
Just run the container, ideally using compose and expose port 80, maybe use something like traffic to make it https.
You could add a volume to /var/www/data to persist the data.
This is not necessary, but a fresh container will not report functional backups until you reported something.
If it's nor prevented on a network level for the world to submit data, you might whant to set RKC_USER and RKC_PASS to prevent random people from submitting data.
You need to use these credentials when reporting to the webservice.
### Reporting
To report your you need to post the output of `restic snapshots` to the webservice, eg:
```bash
restic snapshots | curl -X POST -d @- http://restic_kumar_reporter/
```
or
```bash
restic snapshots | curl -X POST --data-binary @- -u "$USER:$PASS" http://restic_kumar_reporter/
```
when RKC_USER and RKC_PASS are set.
### Checking with kumar
Just point kumar to your webservice.
The Output looks something like this:
```
BACKUP|host1|/opt/mailcow|OK
BACKUP|host1|/var/lib/docker/volumes|OK
BACKUP|host2|/opt/docker|OK
BACKUP|host2|/var/lib/docker/volumes|OK
BACKUP|host3|/opt/docker|TOO_OLD
BACKUP|host3|/var/lib/docker/volumes|OK
BACKUP|host4|/opt/docker|OK
BACKUP|host4|/var/lib/docker/volumes|OK
BACKUP|host5|/opt/docker|TOO_OLD
BACKUP|host5|/var/lib/docker/volumes|TOO_OLD
```
output is always sorted by host and path. so you might check a whole block of hosts at once.
A Backup is okay if it is not older than X hours (default 28).
You can change this by requesting with `?maxage=XX` where XX is the maximum age in hours.