How to backup volumes from helm hook

[jonaskistler]

Hello !

Is there a way to run a Velero backup from a helm hook ? I would like to create a new backup on a pre-upgrade hook. I am using Velero with GCP and scheduled backups and restores are working fine.

Thanks !

[mallancrime]

Yes, you can trigger a Velero backup using a Helm hook. Helm hooks allow you to execute commands at certain points during the Helm lifecycle, such as before or after a release is installed, upgraded, or deleted.

In your case, you want to create a new backup on a pre-upgrade hook. Here's an example of how you might achieve this:

Update your Helm chart:
Add a pre-upgrade hook to your templates directory. Let's call it pre-upgrade-job.yaml. This file might look like:
apiVersion: batch/v1
kind: Job
metadata:
name: pre-upgrade-backup
spec:
template:
metadata:
name: pre-upgrade-backup
spec:
containers:
- name: velero
image: velero/velero:latest
command: ["velero", "backup", "create", "new-backup-name", "--selector", "app=my-app"]
env:
- name: AWS_ACCESS_KEY_ID
valueFrom:
secretKeyRef:
name: cloud-credentials
key: cloud-credentials-access-key-id
- name: AWS_SECRET_ACCESS_KEY
valueFrom:
secretKeyRef:
name: cloud-credentials
key: cloud-credentials-secret-access-key
restartPolicy: Never
This job runs the Velero backup command with the necessary parameters.

Modify your Helm chart:
Update your main deployment.yaml or equivalent to include the hook:

...
spec:
replicas: 1
template:
metadata:
labels:
app: my-app
spec:
containers:
- name: my-app
image: my-app:latest
...
hooks:
- apiVersion: batch/v1
kind: Job
name: pre-upgrade-backup
weight: 2

The weight attribute determines the order of execution among hooks. You can adjust it as needed.

Deploy or upgrade your Helm release:
When you deploy or upgrade your Helm release, the pre-upgrade hook will trigger the job, and Velero will create a new backup.

Remember to adapt the example to your specific requirements, such as adjusting the image names, labels, and environment variables according to your Helm chart structure and Velero configuration.
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[vindiesel56]

"Is there a gaming equivalent to running a 'Velero backup from a Helm hook'? I'm interested in initiating a game state capture or save point during a 'pre-upgrade' phase. Similar to how Velero ensures data integrity, in gaming, having a seamless process for capturing and restoring game progress could be a game-changer, especially for complex multiplayer scenarios or game world modifications. Any insights or suggestions for implementing such a mechanism in the android game context would be appreciated!"