April 7
ASP.Net and the Elastic Compute Cloud example
For a project that I am currently working on I have a requirement to use the Amazon Elastic Compute Cloud. I have had some difficulty finding resources explaining how to interact with the cloud via ASP.Net. I have tried two methods to get something basic up and running with success coming after a long night with the Red Bull. The methods I have tried are:
- Web Resource
- Third Party Libary
Web Resource
This option was the one that I thought I would get going in a few minutes and be creating servers in the cloud before you could say “describe instances”. However I was mistaken, I set up the web reference as I have done 100’s of times than started to use the proxy in order to start a security group in the cloud. First problem!!!! I could not find how to identify myself to EC2 I am sure you have to use the access keys somewhere or the security certificate. After several hours of head scratching I moved on.
Third Party Library
I found the C# wrapper for ASP.Net which proved to be much easier to set up and use. Included the Amazon.EC2 project in my solution and wrote the code that created a security group and opened external ports. Soo much easyer than trying to get to grips with the SOAP interface.
Code
Whoops nearly forgot to include the code!!
AmazonEC2 ec2 = new AmazonEC2Client(awsKey, seceret); //create a security group CreateSecurityGroupRequest request = new CreateSecurityGroupRequest(); request.GroupName = groupName; request.GroupDescription = "Group Created for user 1"; CreateSecurityGroupResponse secg = ec2.CreateSecurityGroup(request); string reqid = secg.ResponseMetadata.RequestId; AuthorizeSecurityGroupIngressRequest ingressrequest = new AuthorizeSecurityGroupIngressRequest(); ingressrequest.FromPort = Convert.ToDecimal(80); ingressrequest.ToPort = Convert.ToDecimal(80); ingressrequest.IpProtocol = "tcp"; ingressrequest.CidrIp = "0.0.0.0/0"; ingressrequest.GroupName = groupName; AuthorizeSecurityGroupIngressResponse inreag = c2.AuthorizeSecurityGroupIngress(ingressrequest); string inreqid = inreag.ResponseMetadata.RequestId; ingressrequest = new AuthorizeSecurityGroupIngressRequest(); ingressrequest.FromPort = Convert.ToDecimal(3389); ingressrequest.ToPort = Convert.ToDecimal(3389); ingressrequest.IpProtocol = "tcp"; ingressrequest.CidrIp = "0.0.0.0/0"; ingressrequest.GroupName = groupName; inreag = ec2.AuthorizeSecurityGroupIngress(ingressrequest); inreqid = inreag.ResponseMetadata.RequestId;
Conclusion
It has taken me hours of head scratching to get this far, due to the lack of decent examples for .Net developers, I feel that I am on the right track now I will keep you Informed of any more issues that I have in this interesting and frustrating journey.
I hope this post helps someone to get started with EC2 quicker than I did and feel free to share this post via the social bookmark sights below. Any constructive comments welcomed on this article content and structure.
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