resize-volume

Grow the disk of a running service instance. The chosen EBS volume is enlarged via ModifyVolume, then the instance is rebooted so its guest filesystem expands into the new space.

Two volumes can be grown:

• root — the boot/OS volume (/dev/xvda). cloud-init grows the root filesystem automatically on the reboot.

• data — the /home/rumi data volume (/dev/sdb), where the agent and application content live. cloud-init does not grow secondary volumes, so the instance's boot-time filesystem-grow expands it on reboot.

EBS volumes can only be grown, never shrunk, and AWS enforces a ~6-hour cooldown between modifications of the same volume. Growing to a size the volume already meets or exceeds is a no-op.

Syntax

rumi cloud aws resize-volume \
  --profile <profile> \
  --network <network> \
  --name <instance> \
  --volume <root|data> \
  --size <GiB> \
  [options]

Options

Option	Short	Description	Default
--profile	-p	AWS profile to use	Required
--region	-r	AWS region	us-east-1
--network	-n	Name of the network the instance is in	Required
--name	-a	The name of the service instance to resize	Required
--volume	-d	Which volume to grow: root (boot/OS) or data (/home/rumi)	Required
--size	-s	The new volume size in GiB (grow-only)	Required
--no-wait	-o	Whether to not wait for the instance to fully restart	false

Example

Grow the /home/rumi data volume of instance w1 to 40 GiB:

rumi cloud aws resize-volume \
  --profile my-aws-profile \
  --network my-network \
  --name w1 \
  --volume data \
  --size 40

Grow the root volume to 16 GiB:

rumi cloud aws resize-volume \
  --profile my-aws-profile \
  --network my-network \
  --name w1 \
  --volume root \
  --size 16

See Also

• resize-instance — change the EC2 instance type (CPU/RAM), not the disk

• attach-volume — attach a new, additional volume

• start-instance

• stop-instance