AwsSnapshotScheduler.Ec2Helper.GetTagValue C# (CSharp) Method

        public static string GetTagValue(List<Amazon.EC2.Model.Tag> Tags, string tagname)
        {
            Amazon.EC2.Model.Tag t = Tags.Find(item => item.Key == tagname);
            if (t != null)
                return t.Value;
            else
                return "";
        }

        /// <summary>
        /// Check for any snapshots set to expire -- that have a tag key of "expires" with a value that is in the past.
        /// </summary>
        public static void CheckForExpiredSnapshots()
        {
            Console.WriteLine("Checking for expired snapshots...");

            AmazonEC2 ec2 = Ec2Helper.CreateClient();

            DescribeSnapshotsRequest rq = new DescribeSnapshotsRequest();

            rq.WithOwner("self");
            rq.WithFilter(new Filter()
            {
                Name = "tag-key", Value = new List <string>()
                {
                    "expires"
                }
            });

            DescribeSnapshotsResponse rs = ec2.DescribeSnapshots(rq);

            foreach (Snapshot s in rs.DescribeSnapshotsResult.Snapshot)
            {
                string expireText = Ec2Helper.GetTagValue(s.Tag, "expires");

                DateTime expires;

                if (DateTime.TryParse(expireText, out expires))
                {
                    if (expires < DateTime.UtcNow)
                    {
                        Console.WriteLine("Deleting " + s.SnapshotId + " for " + s.VolumeId + "...");
                        Ec2Helper.DeleteSnapsot(s.SnapshotId);
                    }
                }
            }
        }