Docker Insurance - Backup solution

This tools backups Docker volume containers and stores them on s3.

To use it, run:

$ docker run -v /var/run/docker.sock:/docker.sock \
         -v /var/lib/docker/vfs/dir:/var/lib/docker/vfs/dir \
         -e ACCESS_KEY=... -e SECRET_KEY=... jangaraj/docker-insurance \
          s3://<BUCKET> container-a container-b container-c...

This will run tar and upload a tarball named after the container to S3.

Container uses environment variable, which can be overwritten:

Variable	Default value	Description
PREFIX	"%Y-%m-%d_%H-%M-%S_"	Tarball prefix
SUFFIX	''	Tarball suffix
DEBUG	0	Enable debug output (stdout)
PUSHGATEWAY	''	Status reporting by HTTP request
S3CMD_OPTS	''	Options for s3cmd command
ACCESS_KEY	''	AWS S3 Access Key
SECRET_KEY	''	AWS S3 Secret Key
EMAIL_FROM	''	Sender of problem emails
EMAIL_TO	''	Reciepient of problem emails
TIMEOUT	0	Backup period: 0 - one time backup only, 86400 = 24h
SMTP_SERVER	''	SMTP server address
EXCLUDE	''	Excluded volumes, e.g. '/etc/,/tmp'