curl --request PUT \
  --url https://api.ppio.com/gpus/v2/instances/{instance_id}/upgrade \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "image": "registry.example.com/namespace/new-image:tag",
  "registry_auth_id": "registry-auth-id",
  "entrypoint": "",
  "command": "",
  "envs": [
    {
      "key": "ENV_NAME",
      "value": "ENV_VALUE"
    }
  ],
  "save_data": true
}
'

{}