/// <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);
}
}
}
}
/// <summary>
/// List all volumes found in region
/// </summary>
public static void ListVolumes()
{
AmazonEC2 ec2 = Ec2Helper.CreateClient();
DescribeVolumesRequest rq = new DescribeVolumesRequest();
DescribeVolumesResponse rs = ec2.DescribeVolumes(rq);
foreach (Volume v in rs.DescribeVolumesResult.Volume)
{
Console.WriteLine(v.VolumeId);
DescribeTagsRequest trq = new DescribeTagsRequest();
trq.WithFilter(new Filter()
{
Name = "resource-id", Value = new List <string>()
{
v.VolumeId
}
});
DescribeTagsResponse trs = ec2.DescribeTags(trq);
foreach (ResourceTag t in trs.DescribeTagsResult.ResourceTag)
{
Console.WriteLine(" " + t.Key + "=" + t.Value);
}
}
}
/// <summary>
/// List all volumes found in region
/// </summary>
public static void ListVolumes()
{
var ec2 = Ec2Helper.CreateClient();
DescribeVolumesRequest rq = new DescribeVolumesRequest();
DescribeVolumesResponse rs = ec2.DescribeVolumes(rq);
foreach (Volume v in rs.Volumes)
{
Console.WriteLine(v.VolumeId);
DescribeTagsRequest trq = new DescribeTagsRequest();
trq.Filters.Add(new Filter()
{
Name = "resource-id", Values = new List <string>()
{
v.VolumeId
}
});
DescribeTagsResponse trs = ec2.DescribeTags(trq);
foreach (TagDescription t in trs.Tags)
{
Console.WriteLine(" " + t.Key + "=" + t.Value);
}
}
}
public static void Backup(string name, string description, string volumeid, string volumename, string instancename, string expires)
{
Console.WriteLine("Creating snapshot of " + volumeid + " / " + volumename + " / " + instancename);
AmazonEC2 ec2 = Ec2Helper.CreateClient();
CreateSnapshotRequest rq = new CreateSnapshotRequest();
rq.VolumeId = volumeid;
rq.Description = description;
CreateSnapshotResponse rs = ec2.CreateSnapshot(rq);
string snapshotid = rs.CreateSnapshotResult.Snapshot.SnapshotId;
// build tags for snapshot
List <Tag> tags = new List <Tag>();
tags.Add(new Tag {
Key = "Name", Value = name
});
tags.Add(new Tag {
Key = "source", Value = "scheduler"
});
tags.Add(new Tag {
Key = "instance", Value = instancename
});
tags.Add(new Tag {
Key = "volume", Value = volumename
});
tags.Add(new Tag {
Key = "expires", Value = expires.ToString()
});
// get tags from volume to be applied to snapshot
DescribeTagsRequest trq = new DescribeTagsRequest();
trq.WithFilter(new Filter()
{
Name = "resource-id", Value = new List <string>()
{
volumeid
}
});
DescribeTagsResponse trs = ec2.DescribeTags(trq);
foreach (ResourceTag t in trs.DescribeTagsResult.ResourceTag)
{
if (t.Key != "nextSnapshot" && t.Key != "lastSnapshot" && t.Key != "Name")
{
tags.Add(new Tag {
Key = t.Key, Value = t.Value
});
}
}
// apply tags to snapshopt
CreateTagsRequest rqq = new CreateTagsRequest();
rqq.WithResourceId(snapshotid);
rqq.WithTag(tags.ToArray());
var createTagResponse = ec2.CreateTags(rqq);
}
/// <summary>
/// Check for any volumes that have a snapshot scheduled based on the schedule in the snapshotSchedule tag key.
/// </summary>
public static void CheckForScheduledSnapshots()
{
Console.WriteLine("Checking for scheduled snapshots...");
AmazonEC2 ec2 = Ec2Helper.CreateClient();
DescribeVolumesRequest rq = new DescribeVolumesRequest();
rq.WithFilter(new Filter()
{
Name = "tag-key", Value = new List <string>()
{
"snapshotSchedule"
}
});
DescribeVolumesResponse rs = ec2.DescribeVolumes(rq);
foreach (Volume v in rs.DescribeVolumesResult.Volume)
{
string[] sch2 = Ec2Helper.GetTagValue(v.Tag, "snapshotSchedule").Split(' ');
string volumename = Ec2Helper.GetTagValue(v.Tag, "Name");
DateTime lastSnap; // date of last snapshot
DateTime nextSnap; // the next backup that should have occured based on last backup
DateTime nextNextSnap; // the next backup that should occur assuming a backup runs now or ran at the last proper time
DateTime now = DateTime.UtcNow;
if (!DateTime.TryParse(Ec2Helper.GetTagValue(v.Tag, "lastSnapshot"), out lastSnap))
{
lastSnap = Convert.ToDateTime("1/1/2010");
}
Console.WriteLine("Checking " + v.VolumeId + " / " + volumename + "...");
//sch2 = ("hourly 4 :30 x30days").Split(' ');
//lastSnap = Convert.ToDateTime("2/29/2012 6:00:15pm");
//now = Convert.ToDateTime("2/29/2012 10:00:14pm");
switch (sch2[0])
{
case "hourly": // hourly, hourly 1 :15, hourly :30, hourly 4 (pass it hours between backups & when on the hour to do it, any order; defaults to every hour on the hour)
int ah = GetAfterTheHour(sch2, 0);
int hi = GetInt(sch2, 1);
nextSnap = lastSnap.AddMinutes(-lastSnap.Minute).AddSeconds(-lastSnap.Second).AddMilliseconds(-lastSnap.Millisecond);
nextSnap = nextSnap.AddHours(hi).AddMinutes(ah);
// this is not right
nextNextSnap = now.AddMinutes(-now.Minute).AddSeconds(-now.Second).AddMilliseconds(-now.Millisecond);
nextNextSnap = nextNextSnap.AddMinutes(ah).AddHours(hi);
break;
case "daily": // daily, 3pm, daily 15:15, daily 3:30pm (times are UTC; defaults to midnight UTC)
DateTime hour = GetTime(sch2, Convert.ToDateTime("0:00"));
nextSnap = lastSnap.Date.AddDays(1).AddTicks(hour.TimeOfDay.Ticks);
nextNextSnap = now.Date.AddDays(1).AddTicks(hour.TimeOfDay.Ticks);
break;
case "weekly": // weekly, weekly sunday, weekly thursday 3pm (times are UTC; defaults to sunday midnight UTC)
DateTime whour = GetTime(sch2, Convert.ToDateTime("0:00"));
DayOfWeek dow = GetDow(sch2, DayOfWeek.Sunday);
if (lastSnap.DayOfWeek >= dow)
{
nextSnap = lastSnap.Date.AddDays(-(int)lastSnap.DayOfWeek).AddDays(7 + (int)dow).AddTicks(whour.TimeOfDay.Ticks);
}
else
{
nextSnap = lastSnap.Date.AddDays(-(int)lastSnap.DayOfWeek).AddDays((int)dow).AddTicks(whour.TimeOfDay.Ticks);
}
nextNextSnap = now.Date.AddDays(-(int)now.DayOfWeek).AddDays(7 + (int)dow).AddTicks(whour.TimeOfDay.Ticks);
if (nextSnap == nextNextSnap)
{
nextNextSnap = nextNextSnap.AddDays(7);
}
break;
default:
lastSnap = now.AddYears(1);
nextSnap = lastSnap;
nextNextSnap = lastSnap;
break;
}
//Console.WriteLine("last=" + lastSnap.ToString());
//Console.WriteLine("now=" + now);
//Console.WriteLine("next=" + nextSnap.ToString());
//Console.WriteLine("nextNext=" + nextNextSnap.ToString());
//Console.ReadKey();
//return;
if (nextSnap <= now)
{
// create snapshot of volume
string expires = "";
int expireHours = GetExpireHours(sch2, 0);
if (expireHours > 0)
{
expires = now.AddHours(expireHours).ToString();
}
Backup(volumename, "automatic", v.VolumeId, volumename, Ec2Helper.GetInstanceName(v.Attachment[0].InstanceId), expires);
// update volume tags
CreateTagsRequest rqq = new CreateTagsRequest();
rqq.WithResourceId(v.VolumeId);
nextSnap = nextSnap.AddSeconds(-nextSnap.Second).AddMilliseconds(-nextSnap.Millisecond);
rqq.WithTag(new Tag[] {
new Tag {
Key = "lastSnapshot", Value = now.ToString()
},
new Tag {
Key = "nextSnapshot", Value = nextNextSnap.ToString()
}
});
var createTagResponse = ec2.CreateTags(rqq);
}
else
{
Console.WriteLine(" Next scheduled " + nextSnap.ToString());
}
}
}