public static KeyPair CreateInstance(AWSModel.KeyPair awsKeyPair)
{
KeyPair keyPair = new KeyPair();
keyPair.KeyFingerprint = awsKeyPair.KeyFingerprint;
keyPair.KeyMaterial = awsKeyPair.KeyMaterial;
keyPair.KeyName = awsKeyPair.KeyName;
return(keyPair);
}
private async Task CreateAsync(CancellationToken? cancellationToken = null)
{
CancellationToken token = cancellationToken.HasValue ? cancellationToken.Value : new CancellationToken();
this.Logger.Log("Starting instance creation process");
Exception exception = null;
try
{
await this.CreateSecurityGroupAsync();
token.ThrowIfCancellationRequested();
}
catch (Exception e)
{
exception = e;
}
if (exception != null)
{
this.Logger.Log("Error creating security group: {0}. Performing rollback", exception.Message);
await this.DeleteSecurityGroupAsync();
throw exception;
}
exception = null;
try
{
await this.AuthorizeIngressAsync(new[] { new PortRangeDescription(22, 22, "tcp"), new PortRangeDescription(-1, -1, "icmp") });
token.ThrowIfCancellationRequested();
}
catch (Exception e)
{
exception = e;
}
if (exception != null)
{
this.Logger.Log("Error authorising ingress: {0}. Performing rollback", exception.Message);
await this.DeleteSecurityGroupAsync();
throw exception;
}
exception = null;
try
{
this.privateKeyPair = await this.EnsureKeyPairCreatedAsync();
token.ThrowIfCancellationRequested();
}
catch (Exception e)
{
exception = e;
}
if (exception != null)
{
this.Logger.Log("Error ensuring key pair created: {0}. Performing rollback", exception.Message);
await this.DeleteSecurityGroupAsync();
throw exception;
}
exception = null;
try
{
if (this.Specification.IsSpotInstance)
await this.BidForInstanceAsync(token);
else
await this.CreateInstanceAsync(token);
token.ThrowIfCancellationRequested();
this.PublicIp = (await this.DescribeInstanceAsync()).PublicIpAddress;
}
catch (Exception e)
{
exception = e;
}
if (exception != null)
{
this.Logger.Log("Error creating instance: {0}. Performing rollback", exception.Message);
if (this.Specification.IsSpotInstance)
await this.CancelBidRequestAsync();
await this.TerminateAsync();
await this.DeleteSecurityGroupAsync();
throw exception;
}
// We need to know this to create volumes
if (this.Specification.AvailabilityZone == null)
this.Specification.AvailabilityZone = (await this.DescribeInstanceAsync()).Placement.AvailabilityZone;
this.Logger.Log("Instance has been created");
}
/// <summary>
/// Sets the KeyPair property
/// </summary>
/// <param name="keyPair">KeyPair property</param>
/// <returns>this instance</returns>
public CreateKeyPairResult WithKeyPair(KeyPair keyPair)
{
this.keyPairField = keyPair;
return this;
}
private async Task<KeyPair> EnsureKeyPairCreatedAsync()
{
KeyPair keyPair = null;
var existingKey = this.config.LoadKey();
// If we've got a key, check that it still exists on amazon
if (existingKey != null)
{
this.Logger.Log("Saved key pair found. Fingerprint: {0}", existingKey.Value.Fingerprint);
var response = await this.Client.DescribeKeyPairsAsync(new DescribeKeyPairsRequest()
{
Filters = new List<Filter>()
{
new Filter() { Name = "fingerprint", Values = new List<string>() { existingKey.Value.Fingerprint } },
},
});
var keyPairInfo = response.KeyPairs.FirstOrDefault();
if (keyPairInfo != null)
{
keyPair = new KeyPair()
{
KeyFingerprint = keyPairInfo.KeyFingerprint,
KeyName = keyPairInfo.KeyName,
KeyMaterial = existingKey.Value.Key,
};
}
}
// If we don't have a keypair locally, or we do but it isn't on amazon
if (keyPair == null)
{
this.Logger.Log("Creating key pair");
var response = await this.Client.CreateKeyPairAsync(new CreateKeyPairRequest()
{
KeyName = String.Format("Ec2Manager-{0}-{1}", Environment.MachineName, Guid.NewGuid().ToString()),
});
keyPair = response.KeyPair;
this.Logger.Log("Key pair created. Fingerprint: {0}", keyPair.KeyFingerprint);
this.config.SaveKey(new KeyDescription(keyPair.KeyMaterial, keyPair.KeyFingerprint));
}
return keyPair;
}