GCP Add IAM Role to Service Account

Here’s how to add an IAM role to a GCP Service Account.

gcloud projects add-iam-policy-binding your-project-id \
--member serviceAccount:service-account-name@your-project-id.iam.gserviceaccount.com \
--role roles/storage.objectAdmin

AWS Glacier Setup via S3

You can setup AWS Glacier via S3 bucket replication. Create a S3 bucket and slap this bucket policy.

{
    "Version": "2012-10-17",
    "Id": "S3PolicyId1",
    "Statement": [
        {
            "Sid": "IPAllow",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::your-bucket-storage-name/*",
            "Condition": {
                "IpAddress": {
                    "aws:SourceIp": "10.0.0.0/8"
                }
            }
        },
        {
            "Sid": "DenyIncorrectEncryptionHeader",
            "Effect": "Deny",
            "Principal": "*",
            "Action": "s3:PutObject",
            "Resource": "arn:aws:s3:::your-bucket-storage-name/*",
            "Condition": {
                "StringNotEquals": {
                    "s3:x-amz-server-side-encryption": "AES256"
                }
            }
        },
        {
            "Sid": "DenyUnEncryptedObjectUploads",
            "Effect": "Deny",
            "Principal": "*",
            "Action": "s3:PutObject",
            "Resource": "arn:aws:s3:::your-bucket-storage-name/*",
            "Condition": {
                "Null": {
                    "s3:x-amz-server-side-encryption": "true"
                }
            }
        }
    ]
}

Add this policy to your IAM user or role.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::cah-callcopy-storage/*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:List*",
                "s3:Get*"
            ],
            "Resource": "arn:aws:s3:::*"
        }
    ]
}
Finally, add a lifecycle policy to move your files from Standard to Glacier storage type.