rdb-autoresize

README

RDB Autoresize

Automatic resizer for RDB volumes.

This tool helps you keep the size of your Scaleway Database Instances volumes adapted to the amount of data you store in it.

How to use

What you need:

• A Scaleway API Key (access key + secret key)
• A Scaleway Database instance

Using docker compose

Export mandatory variables:

export SCW_ACCESS_KEY="a-scaleway-access-key"
export SCW_SECRET_KEY="a-scaleway-secret-key"
export SCW_RDB_REGION="the-region-your-rdb-instance-is-deployed-on"
export SCW_RDB_INSTANCE_ID="your-rdb-instance-id"

Optionally, you can tweak additional settings:

# the % above which triggering will happen. Defaults to 90%
export SCW_RDB_TRIGGER_PERCENTAGE=90
# the limit size of your volume, defaults to 100GB
export SCW_RDB_VOLUME_SIZE_LIMIT=100GB

Start the stack:

docker compose up --build

Manually

go build

export SCW_ACCESS_KEY="a-scaleway-access-key"
export SCW_SECRET_KEY="a-scaleway-secret-key"
export SCW_RDB_REGION="the-region-your-rdb-instance-is-deployed-on"
export SCW_RDB_INSTANCE_ID="your-rdb-instance-id"

./rdb-autoresize -volume-size-limit 100GB

Configuration

Several parameters can be tweaked via environment variables:

• SCW_RDB_TRIGGER_PERCENTAGE: resize will happen when disk usage is above this percentage.
• SCW_RDB_VOLUME_SIZE_LIMIT: resize will no happen if target size is above this.

You also have some command line options:

• -trigger-percentage: equivalient of SCW_RDB_TRIGGER_PERCENTAGE
• -volume-size-limit: equivalent of SCW_RDB_VOLUME_SIZE_LIMIT
• -log-json: activate json-formatted logging
• -debug: activate debug logging