Use GetDeployablePatchSnapshotForInstance with an Amazon SDK or CLI

To retrieve the current snapshot for the patch baseline an instance uses

The following get-deployable-patch-snapshot-for-instance example retrieves details for the current snapshot for the specified patch baseline used by an instance. This command must be run from the instance using the instance credentials. To ensure it uses the instance credentials, run aws configure and specify only the Region of your instance. Leave the Access Key and Secret Key fields empty.

Tip: Use uuidgen to generate a snapshot-id.

aws ssm get-deployable-patch-snapshot-for-instance \
    --instance-id "i-1234567890abcdef0" \
    --snapshot-id "521c3536-930c-4aa9-950e-01234567abcd"

Output:

{
    "InstanceId": "i-1234567890abcdef0",
    "SnapshotId": "521c3536-930c-4aa9-950e-01234567abcd",
    "Product": "AmazonLinux2018.03",
    "SnapshotDownloadUrl": "https://patch-baseline-snapshot-us-east-1.s3.amazonaws.com/ed85194ef27214f5984f28b4d664d14f7313568fea7d4b6ac6c10ad1f729d7e7-773304212436/AMAZON_LINUX-521c3536-930c-4aa9-950e-01234567abcd?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20190215T164031Z&X-Amz-SignedHeaders=host&X-Amz-Expires=86400&X-Amz-Credential=AKIAJ5C56P35AEBRX2QQ%2F20190215%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=efaaaf6e3878e77f48a6697e015efdbda9c426b09c5822055075c062f6ad2149"
}

For more information, see Parameter name: Snapshot ID in the Amazon Systems Manager User Guide.

Example 1: This example displays the current snapshot for the patch baseline used by an Instance. This command must be run from the instance using the instance credentials. To ensure it uses the instance credentials, the example passes an Amazon.Runtime.InstanceProfileAWSCredentials object to the Credentials parameter.

$credentials = [Amazon.Runtime.InstanceProfileAWSCredentials]::new()
Get-SSMDeployablePatchSnapshotForInstance -SnapshotId "4681775b-098f-4435-a956-0ef33373ac11" -InstanceId "i-0cb2b964d3e14fd9f" -Credentials $credentials

Output:

InstanceId          SnapshotDownloadUrl
----------          -------------------
i-0cb2b964d3e14fd9f https://patch-baseline-snapshot-us-west-2.s3-us-west-2.amazonaws.com/853d0d3db0f0cafe...1692/4681775b-098f-4435...

Example 2: This example shows how to get the full SnapshotDownloadUrl. This command must be run from the instance using the instance credentials. To ensure it uses the instance credentials, the example configures the PowerShell session to use an Amazon.Runtime.InstanceProfileAWSCredentials object.

Set-AWSCredential -Credential ([Amazon.Runtime.InstanceProfileAWSCredentials]::new())
(Get-SSMDeployablePatchSnapshotForInstance -SnapshotId "4681775b-098f-4435-a956-0ef33373ac11" -InstanceId "i-0cb2b964d3e14fd9f").SnapshotDownloadUrl

Output:

https://patch-baseline-snapshot-us-west-2.s3-us-west-2.amazonaws.com/853d0d3db0f0cafe...