I'm trying to get a list of the images older than x date. As per the AWS doc, I'm using the YYYY-MM-DDThh:mm:ss.sssZ format.

Here is my code:

DescribeImagesResponse describeImagesResponse = _ec2Client.DescribeImages(new DescribeImagesRequest
{
    Filters = new List<Filter> { new Filter("creation-date", new List<string> { "2021-09-29T*" }) },
    Owners = new List<string> { "self" }
});

return describeImagesResponse.Images;

The DescribeImagesRequest returns a list of 106 images without the filter, all being created from 2019 to 2022, so I was expecting a list of about 50 images or so.

Instead, I get an empty list.

How can I get all images older than a specific date?

CodePudding user response：

There is no native 'older than x' or 'newer than x' date filter, for the DescribeImages API endpoint. As mentioned in the docs, the filter is - at max, with a wildcard - for an entire day, not a range.

You will have to do the filtering client-side:

1. describe all self-owned images with no date filter
2. manually parse the dates for each image
3. filter the images based on your creation-date requirements, within the client

For C#, this should work:

var ec2Client = new AmazonEC2Client();
var threshold = new DateTime(2021, 09, 29);

var describeImagesRequest = new DescribeImagesRequest
{
    Owners = new List<string> { "self" }
};

var describeImagesResponse =
    await ec2Client.DescribeImagesAsync(describeImagesRequest);

var imagesOlderThanSpecifiedDate =
    describeImagesResponse.Images.Where(image => DateTime.Parse(image.CreationDate) < threshold);