private static void FnExamples()
{
Fn.FindInMap("RegionMap", Fn.Ref("AWS::Region"), "64");
Fn.GetAtt("MyElb", ElasticLoadBalancing.LoadBalancer.Attributes.DNSName);
Fn.GetAZs("us-east-2");
Fn.ImportValue(Fn.Sub("${NetworkStackNameParameter}-SubnetID"));
Fn.Join("", "arn:aws:s3:::", Fn.Ref("DeployBucket"), "/*");
Fn.Ref("BucketName");
Fn.Select("1", new[] { "a", "b", "c" });
Fn.Split("|", "a|b|c");
Fn.Sub("${AWS::StackName}-${AWS::Region}-bucket");
Fn.Select("1", Fn.Split("|", "a|b|c"));
// CidrBlock: !Select [1, !Cidr [!Ref cidrBlock, !Ref count, !Ref maskSizeForIPv4]]
Fn.Cidr("a", "b", "c");
// Because JSON doesn't allow newlines, there's a known hack where you can join multiple lines together using Fn::Join
Fn.Base64(Fn.Join("",
"#!/bin/bash -e\n",
"wget https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/12.04/x86_64/chef_11.6.2-1.ubuntu.12.04_amd64.deb\n",
"dpkg -i chef_11.6.2-1.ubuntu.12.04_amd64.deb\n"
));
// But that's gross and unreadable, we have a better way! Use a multiline C# string, and let the library take care of encoding it for you.
// - Whitespace on the start of the line is trimmed, so feel free to indent you code nicely.
// - Newlines are encoded as \r\n automatically by NewtonSoft.Json
Fn.Base64(
@"#!/bin/bash -e
wget https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/12.04/x86_64/chef_11.6.2-1.ubuntu.12.04_amd64.deb
dpkg -i chef_11.6.2-1.ubuntu.12.04_amd64.deb"
);
}
public void CreateCidr()
{
var target = Fn.Cidr("some value", Fn.Ref("count"), Fn.Ref("maskSizeForIPv6"));
var actual = JToken.FromObject(target);
var expected = JToken.Parse("{\"Fn::Cidr\": [\"some value\", { \"Ref\": \"count\" }, { \"Ref\": \"maskSizeForIPv6\" } ] }");
Assert.True(JToken.DeepEquals(actual, expected));
}
