public string EnsureSecurityGroupExists(AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, regionEndpoint));
// Find the VPC ID for this region
var vpcId = client.DescribeVpcs().Vpcs.Single().VpcId;
// Does the security group with our preset name exist?
var matchingGroups = client.DescribeSecurityGroups().SecurityGroups.Where(x => x.GroupName == securityGroupName).ToList();
if (matchingGroups.Any())
{
// If it exists, assert that it has the same VPC ID as the one we found earlier
if (matchingGroups.Single().VpcId != vpcId)
{
throw new Exception("Security Group already exists with invalid VPC.");
}
return matchingGroups.Single().GroupId;
}
else
{
// It does not exist, so create it.
return CreateSecurityGroup(client, vpcId, securityGroupName);
}
}
private void RefreshWorkers(AwsRegionLocations region)
{
// Use canRefreshWorkers to ensure that we don't try to refresh workers while a refresh is in progress
if (canRefreshWorkers)
{
canRefreshWorkers = false;
var regionControl = controlRegionDictionary[region];
var instances = regionControl.RegionDetails.Instances;
// Go into the UI thread to clear out the current listview and re-add all the instances to it
InstancesInRegionListView.UIThread(() =>
{
InstancesInRegionListView.Items.Clear();
foreach (var instance in instances)
{
instance.WorkerInfo = null;
InstancesInRegionListView.Items.Add(instance.ToListViewItem());
}
});
var updateInstanceTasks = instances.Select(RefreshWorker);
Task.WhenAll(updateInstanceTasks.ToArray())
.ContinueWith(t =>
{
// Once we're all done refreshing all of the workers allow the refresh to happen again
canRefreshWorkers = true;
});
}
}
public static RegionEndpoint ToAwsRegionEndpoint(this AwsRegionLocations awsRegionLocation)
{
switch (awsRegionLocation)
{
case AwsRegionLocations.UsEast:
return(RegionEndpoint.USEast1);
case AwsRegionLocations.UsWest1:
return(RegionEndpoint.USWest1);
case AwsRegionLocations.UsWest2:
return(RegionEndpoint.USWest2);
case AwsRegionLocations.EuWest:
return(RegionEndpoint.EUWest1);
case AwsRegionLocations.SaEast:
return(RegionEndpoint.SAEast1);
case AwsRegionLocations.ApNortheast:
return(RegionEndpoint.APNortheast1);
case AwsRegionLocations.ApSoutheast1:
return(RegionEndpoint.APSoutheast1);
case AwsRegionLocations.ApSoutheast2:
return(RegionEndpoint.APSoutheast2);
default:
throw new ArgumentException("Unmapped region type. Add mapping to RegionExtensions class", "awsRegionLocation");
}
}
private string FindNewestInstanceId(AwsRegionLocations region)
{
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
// Get instances within the region
// Start by creating the request
var request = new DescribeInstancesRequest();
// Add a filter to the request so that it only returns instances that are either in "Running" state.
request.Filters.Add(new Filter("instance-state-code", new List <string>()
{
((ushort)InstanceStatuses.Running).ToString(),
}));
// Send the request to Amazon
var reservations = client.DescribeInstances(request).Reservations;
var instances = reservations.SelectMany(x => x.Instances);
if (instances.Any())
{
var newestInstance = instances.OrderByDescending(i => i.LaunchTime).First();
return(newestInstance.InstanceId);
}
return(null);
}
private void CreateAndLaunchInstance(AwsRegionLocations region)
{
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
var securityGroupId = EnsureSecurityGroupExists(region);
var availableSubnets = client.DescribeSubnets().Subnets.OrderByDescending(x => x.AvailableIpAddressCount);
var networkSpecification = new InstanceNetworkInterfaceSpecification()
{
DeviceIndex = 0,
SubnetId = availableSubnets.First().SubnetId,
Groups = new List <string>()
{
securityGroupId
},
AssociatePublicIpAddress = true
};
var networkSpecifications = new List <InstanceNetworkInterfaceSpecification>()
{
networkSpecification
};
var launchRequest = new RunInstancesRequest()
{
ImageId = GetAmiId(client, amiName),
InstanceType = "t2.micro",
MinCount = 1,
MaxCount = 1,
KeyName = keyPairName,
NetworkInterfaces = networkSpecifications
};
client.RunInstances(launchRequest);
}
public RegionDetails GetRegionData(AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, regionEndpoint));
// Get instances within the region
// Start by creating the request
var request = new DescribeInstancesRequest();
// Add a filter to the request so that it only returns instances that are either in "Running" or "Pending" state.
request.Filters.Add(new Filter("instance-state-code", new List <string>()
{
((ushort)InstanceStatuses.Running).ToString(),
((ushort)InstanceStatuses.Pending).ToString()
}));
// Send the request to Amazon
var reservations = client.DescribeInstances(request).Reservations;
return(new RegionDetails()
{
Name = regionEndpoint.SystemName,
Region = region,
Instances = reservations.SelectMany(x => x.Instances).Select(x => x.ToInstanceInfo()).ToList()
});
}
public RegionDetails GetRegionData(AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, regionEndpoint));
// Get instances within the region
// Start by creating the request
var request = new DescribeInstancesRequest();
// Add a filter to the request so that it only returns instances that are either in "Running" or "Pending" state.
request.Filters.Add(new Filter("instance-state-code", new List<string>()
{
((ushort)InstanceStatuses.Running).ToString(),
((ushort)InstanceStatuses.Pending).ToString()
}));
// Send the request to Amazon
var reservations = client.DescribeInstances(request).Reservations;
return new RegionDetails()
{
Name = regionEndpoint.SystemName,
Region = region,
Instances = reservations.SelectMany(x => x.Instances).Select(x => x.ToInstanceInfo()).ToList()
};
}
public string EnsureSecurityGroupExists(AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, regionEndpoint));
// Find the VPC ID for this region
var vpcId = client.DescribeVpcs().Vpcs.Single().VpcId;
// Does the security group with our preset name exist?
var matchingGroups = client.DescribeSecurityGroups().SecurityGroups.Where(x => x.GroupName == securityGroupName).ToList();
if (matchingGroups.Any())
{
// If it exists, assert that it has the same VPC ID as the one we found earlier
if (matchingGroups.Single().VpcId != vpcId)
{
throw new Exception("Security Group already exists with invalid VPC.");
}
return(matchingGroups.Single().GroupId);
}
else
{
// It does not exist, so create it.
return(CreateSecurityGroup(client, vpcId, securityGroupName));
}
}
private void ShowRegionDetails(AwsRegionLocations region)
{
currentRegionBeingViewed = region;
MainTabControl.SelectTab(1);
RegionNameLabel.Text = controlRegionDictionary[region].RegionDetails.Name;
RefreshWorkers(region);
}
private void TerminateInstance(AwsRegionLocations region)
{
Task.Factory.StartNew(() => ec2Caller.TerminateInstance(region, launchedRegion =>
{
Thread.Sleep(1000);
UpdateRegionControl(controlRegionDictionary[launchedRegion]);
}));
}
private void ShowRegionDetails(AwsRegionLocations region)
{
currentRegionBeingViewed = region;
MainTabControl.SelectTab(1);
RegionNameLabel.Text = controlRegionDictionary[region].RegionDetails.Name;
RefreshWorkers(region);
}
public RegionDetails GetRegionData(AwsRegionLocations region)
{
return new RegionDetails()
{
Name = regionNames[region],
Region = region,
Instances = CreateSomeRandomInstances().ToList()
};
}
protected virtual void OnRemoveInstanceButtonClicked(AwsRegionLocations e)
{
var handler = RemoveInstanceButtonClicked;
if (handler != null)
{
handler(this, e);
}
}
protected virtual void OnRegionIdLabelClicked(AwsRegionLocations e)
{
var handler = RegionIdLabelClicked;
if (handler != null)
{
handler(this, e);
}
}
public RegionDetails GetRegionData(AwsRegionLocations region)
{
return(new RegionDetails()
{
Name = regionNames[region],
Region = region,
Instances = CreateSomeRandomInstances().ToList()
});
}
public void TerminateInstance(AwsRegionLocations region, Action <AwsRegionLocations> instanceTerminated)
{
var newestInstanceInRegion = FindNewestInstanceId(region);
if (newestInstanceInRegion != null)
{
TerminateInstance(region, newestInstanceInRegion);
instanceTerminated(region);
}
}
public byte[] DownloadData(string bucketName, string keyName, AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = s3Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonS3Client(credentials, regionEndpoint));
// download the data
using (var stream = client.GetObject(bucketName, keyName).ResponseStream)
{
return ReadFully(stream);
}
}
public byte[] DownloadData(string bucketName, string keyName, AwsRegionLocations region)
{
var regionEndpoint = region.ToAwsRegionEndpoint();
// Get an Ec2Client for the current region
var client = s3Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonS3Client(credentials, regionEndpoint));
// download the data
using (var stream = client.GetObject(bucketName, keyName).ResponseStream)
{
return(ReadFully(stream));
}
}
private void TerminateInstance(AwsRegionLocations region, string instanceId)
{
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
var deleteRequest = new TerminateInstancesRequest()
{
InstanceIds = new List <string>()
{
instanceId
}
};
client.TerminateInstances(deleteRequest);
}
public void LaunchInstance(AwsRegionLocations region, Action <AwsRegionLocations> instanceLaunched)
{
// Wrap instance creation to ensure that only one is being launched simultaneously. This should be refactored but will not be due to time constraints.
if (!instanceCurrentlyBeingLaunched)
{
instanceCurrentlyBeingLaunched = true;
CreateAndLaunchInstance(region);
instanceLaunched(region);
while (!instancesToBeLaunched.IsEmpty)
{
AwsRegionLocations nextRegion;
if (instancesToBeLaunched.TryDequeue(out nextRegion))
{
CreateAndLaunchInstance(nextRegion);
instanceLaunched(nextRegion);
}
}
instanceCurrentlyBeingLaunched = false;
}
else
{
instancesToBeLaunched.Enqueue(region);
}
}
private void RefreshWorkers(AwsRegionLocations region)
{
// Use canRefreshWorkers to ensure that we don't try to refresh workers while a refresh is in progress
if (canRefreshWorkers)
{
canRefreshWorkers = false;
var regionControl = controlRegionDictionary[region];
var instances = regionControl.RegionDetails.Instances;
// Go into the UI thread to clear out the current listview and re-add all the instances to it
InstancesInRegionListView.UIThread(() =>
{
InstancesInRegionListView.Items.Clear();
foreach (var instance in instances)
{
instance.WorkerInfo = null;
InstancesInRegionListView.Items.Add(instance.ToListViewItem());
}
});
var updateInstanceTasks = instances.Select(RefreshWorker);
Task.WhenAll(updateInstanceTasks.ToArray())
.ContinueWith(t =>
{
// Once we're all done refreshing all of the workers allow the refresh to happen again
canRefreshWorkers = true;
});
}
}
public void LaunchInstance(AwsRegionLocations region, Action<AwsRegionLocations> instanceLaunched)
{
instanceLaunched(region);
}
public void LaunchInstance(AwsRegionLocations region, Action <AwsRegionLocations> instanceLaunched)
{
instanceLaunched(region);
}
private void TerminateInstance(AwsRegionLocations region)
{
Task.Factory.StartNew(() => ec2Caller.TerminateInstance(region, launchedRegion =>
{
Thread.Sleep(1000);
UpdateRegionControl(controlRegionDictionary[launchedRegion]);
}));
}
public void TerminateInstance(AwsRegionLocations region, Action <AwsRegionLocations> instanceTerminated)
{
instanceTerminated(region);
}
private void TerminateInstance(AwsRegionLocations region, string instanceId)
{
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
var deleteRequest = new TerminateInstancesRequest()
{
InstanceIds = new List<string>() { instanceId }
};
client.TerminateInstances(deleteRequest);
}
public void LaunchInstance(AwsRegionLocations region, Action<AwsRegionLocations> instanceLaunched)
{
// Wrap instance creation to ensure that only one is being launched simultaneously. This should be refactored but will not be due to time constraints.
if (!instanceCurrentlyBeingLaunched)
{
instanceCurrentlyBeingLaunched = true;
CreateAndLaunchInstance(region);
instanceLaunched(region);
while (!instancesToBeLaunched.IsEmpty)
{
AwsRegionLocations nextRegion;
if (instancesToBeLaunched.TryDequeue(out nextRegion))
{
CreateAndLaunchInstance(nextRegion);
instanceLaunched(nextRegion);
}
}
instanceCurrentlyBeingLaunched = false;
}
else
{
instancesToBeLaunched.Enqueue(region);
}
}
public void TerminateInstance(AwsRegionLocations region, Action<AwsRegionLocations> instanceTerminated)
{
var newestInstanceInRegion = FindNewestInstanceId(region);
if (newestInstanceInRegion != null)
{
TerminateInstance(region, newestInstanceInRegion);
instanceTerminated(region);
}
}
private string FindNewestInstanceId(AwsRegionLocations region)
{
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
// Get instances within the region
// Start by creating the request
var request = new DescribeInstancesRequest();
// Add a filter to the request so that it only returns instances that are either in "Running" state.
request.Filters.Add(new Filter("instance-state-code", new List<string>()
{
((ushort)InstanceStatuses.Running).ToString(),
}));
// Send the request to Amazon
var reservations = client.DescribeInstances(request).Reservations;
var instances = reservations.SelectMany(x => x.Instances);
if (instances.Any())
{
var newestInstance = instances.OrderByDescending(i => i.LaunchTime).First();
return newestInstance.InstanceId;
}
return null;
}
protected virtual void OnRemoveInstanceButtonClicked(AwsRegionLocations e)
{
var handler = RemoveInstanceButtonClicked;
if (handler != null) handler(this, e);
}
protected virtual void OnRegionIdLabelClicked(AwsRegionLocations e)
{
var handler = RegionIdLabelClicked;
if (handler != null) handler(this, e);
}
public void TerminateInstance(AwsRegionLocations region, Action<AwsRegionLocations> instanceTerminated)
{
instanceTerminated(region);
}
private void CreateAndLaunchInstance(AwsRegionLocations region)
{
// Get an Ec2Client for the current region
var client = ec2Clients.GetOrAdd(region, r => AWSClientFactory.CreateAmazonEC2Client(credentials, region.ToAwsRegionEndpoint()));
var securityGroupId = EnsureSecurityGroupExists(region);
var availableSubnets = client.DescribeSubnets().Subnets.OrderByDescending(x => x.AvailableIpAddressCount);
var networkSpecification = new InstanceNetworkInterfaceSpecification()
{
DeviceIndex = 0,
SubnetId = availableSubnets.First().SubnetId,
Groups = new List<string>() { securityGroupId },
AssociatePublicIpAddress = true
};
var networkSpecifications = new List<InstanceNetworkInterfaceSpecification>() { networkSpecification };
var launchRequest = new RunInstancesRequest()
{
ImageId = GetAmiId(client, amiName),
InstanceType = "t2.micro",
MinCount = 1,
MaxCount = 1,
KeyName = keyPairName,
NetworkInterfaces = networkSpecifications
};
client.RunInstances(launchRequest);
}
