0

I'm using OpenStack and I am trying to provision a compute resource on it. I want that compute resource to attach to a volume. We have three things in play.

I need something to,

  1. Create a partition table on first mount.
  2. To create a file system (ext4) on first mount.
  3. To initialize the file system with the things I need.

Does the logic to initialize this volume typically hang out in the cloud-init for the machine? If I initialize it manually, I can mount it using cloud-init's directive for mounts. But without manually installation, how do we instruct user_data to initialize the volume before if necessary before the mount?

What I'm trying to do is store the .git file for a monorepo on an external shared mount. What I would like is on first boot of the sandbox for that to be ready. On subsequent boots/refreshes, I would just like them to run git fetch so they only pull down what's necessary rather than needing to re-clone.

1 Answer 1

0

Cloud-init solution

cloud-init accommodates the partitioning with disk_setup

disk_setup:
  /dev/vdb:
    table_type: gpt
    layout: true

And the corresponding filesystem initialization with fs_setup

fs_setup:
- label: repo
  filesystem: ext4
  device: /dev/vdb1
  partition: auto

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.