Automatic snapshots of Google Cloud Plateform Disk for Kubernetes and Docker
This program make snapshots of one or many disks, and delete old snapshots.
First compile the Go file: go build backup.go
Then you can execute the program: backup --filter "name = my-disk" --limit 5 --dry-run
Set a filter for the gcloud compute disks list command, or set as "" to create a snapshot for each disk found in the current cluster.
Set a limit of snapshot saved for each disk using the --limit flag: when there is more than --limit snapshots, they will be deleted.
Use --dry-run to watch logs of what will happen.
When executed on a Kubernetes cluster, the gcloud command will automatically find all the cluster's disks.
Best thing is to create a Docker image from google/cloud-sdk image and set a cron job for the backup. If you plan to do a backup every day, set a limit to 7 to keep only one week of snapshots.
We will add a Docker image and an example as soon as possible ;)
You are welcome to make any suggestions and Pull Requests!