/** * Check that the AMI requested is available in the cloud and can be used. */
public FormValidation doValidateAmi(
@QueryParameter boolean useInstanceProfileForCredentials,
@QueryParameter String credentialsId,
@QueryParameter String ec2endpoint,
@QueryParameter String region,
final @QueryParameter String ami)
throws IOException {
AWSCredentialsProvider credentialsProvider =
EC2Cloud.createCredentialsProvider(useInstanceProfileForCredentials, credentialsId);
AmazonEC2 ec2;
if (region != null) {
ec2 = EC2Cloud.connect(credentialsProvider, AmazonEC2Cloud.getEc2EndpointUrl(region));
} else {
ec2 = EC2Cloud.connect(credentialsProvider, new URL(ec2endpoint));
}
if (ec2 != null) {
try {
List<String> images = new LinkedList<String>();
images.add(ami);
List<String> owners = new LinkedList<String>();
List<String> users = new LinkedList<String>();
DescribeImagesRequest request = new DescribeImagesRequest();
request.setImageIds(images);
request.setOwners(owners);
request.setExecutableUsers(users);
List<Image> img = ec2.describeImages(request).getImages();
if (img == null || img.isEmpty()) {
// de-registered AMI causes an empty list to be
// returned. so be defensive
// against other possibilities
return FormValidation.error("No such AMI, or not usable with this accessId: " + ami);
}
String ownerAlias = img.get(0).getImageOwnerAlias();
return FormValidation.ok(
img.get(0).getImageLocation() + (ownerAlias != null ? " by " + ownerAlias : ""));
} catch (AmazonClientException e) {
return FormValidation.error(e.getMessage());
}
} else return FormValidation.ok(); // can't test
}
