我需要一个持续运行 1 个月的 AWS EC2 实例，并且正在寻找正常按需价格的替代方案。
有很多文章描述了如何在预留实例市场中选择二手预留实例https://www.metricly.com/aws-reserved-instance-marketplace/或者一篇非常古老的 AWS 博客文章https://aws.amazon.com/blogs/aws/amazon-ec2-reserved-instance-marketplace/
但我永远找不到！从来没有更便宜的预留实例显示“第三方”作为卖方，或者持续时间短于 AWS 的最低 12 个月。我对实例类型很灵活，但我无法在下拉列表中选择多个。我不会每天都检查这个，更改下拉列表（其中包含 100 多个项目）并每次都单击“搜索”。
有没有更好的办法？
答案1
使用 AWS CLI，我运行此命令
call aws ec2 describe-reserved-instances-offerings --availability-zone us-east-1b --filters Name=marketplace,Values=true
运行时间太长（超过 5 分钟）。输出如下。这似乎表明整个 us-east-1b 中只有两个二手保留实例？奇怪。我希望有一个错误，或者超时，或者我的命令出了问题。
---------------------------------------------------------------------------
| DescribeReservedInstancesOfferings |
+-------------------------------------------------------------------------+
|| ReservedInstancesOfferings ||
|+------------------------------+----------------------------------------+|
|| AvailabilityZone | us-east-1b ||
|| CurrencyCode | USD ||
|| Duration | 36288000 ||
|| FixedPrice | 218.75 ||
|| InstanceTenancy | default ||
|| InstanceType | m1.small ||
|| Marketplace | True ||
|| OfferingClass | standard ||
|| OfferingType | All Upfront ||
|| ProductDescription | SUSE Linux ||
|| ReservedInstancesOfferingId | af1959a7-f884-4781-a8d8-25719911daf7 ||
|| Scope | Availability Zone ||
|| UsagePrice | 0.0 ||
|+------------------------------+----------------------------------------+|
||| PricingDetails |||
||+--------------------------------+------------------------------------+||
||| Count | 1 |||
||| Price | 218.75 |||
||+--------------------------------+------------------------------------+||
||| RecurringCharges |||
||+--------------------------------------+------------------------------+||
||| Amount | 0.0 |||
||| Frequency | Hourly |||
||+--------------------------------------+------------------------------+||
|| ReservedInstancesOfferings ||
|+------------------------------+----------------------------------------+|
|| AvailabilityZone | us-east-1b ||
|| CurrencyCode | USD ||
|| Duration | 2592000 ||
|| FixedPrice | 58.75 ||
|| InstanceTenancy | dedicated ||
|| InstanceType | c4.2xlarge ||
|| Marketplace | True ||
|| OfferingClass | standard ||
|| OfferingType | No Upfront ||
|| ProductDescription | Linux/UNIX (Amazon VPC) ||
|| ReservedInstancesOfferingId | 73fc138d-d536-4806-b2a3-2cd05752240e ||
|| Scope | Availability Zone ||
|| UsagePrice | 0.0 ||
|+------------------------------+----------------------------------------+|
||| PricingDetails |||
||+---------------------------------+-----------------------------------+||
||| Count | 1 |||
||| Price | 58.75 |||
||+---------------------------------+-----------------------------------+||
||| RecurringCharges |||
||+--------------------------------------+------------------------------+||
||| Amount | 0.195 |||
||| Frequency | Hourly |||
||+--------------------------------------+------------------------------+||