Run an AWS S3 Glacier retrieval per file

s3-glacier-retrieval.ps1

# Set variables
$bucket = "your-bucket-name"
$s3Path = "your/s3/path/"
$retrievalDays = 1  # Number of days the restored object will be available

# Function to initiate Glacier retrieval for a file
function Start-GlacierRetrieval {
    param (
        [string]$Key
    )
    
    Write-Host "Initiating Glacier retrieval for: $Key"
    aws s3api restore-object --bucket $bucket --key $Key --restore-request "{`"Days`":$retrievalDays,`"GlacierJobParameters`":{`"Tier`":`"Standard`"}}"
}

# List all objects in the S3 path recursively
$objects = aws s3api list-objects-v2 --bucket $bucket --prefix $s3Path --query "Contents[].Key" --output json | ConvertFrom-Json

# Iterate through each object and initiate Glacier retrieval
foreach ($object in $objects) {
    Start-GlacierRetrieval -Key $object
}

Write-Host "Glacier retrieval initiated for all files in $s3Path"