public static Ec2MetaData Create(string url = "http://169.254.169.254/latest/meta-data/")
{
var result = new Ec2MetaData();
var client = new HttpClient();
try
{
Task.WaitAll(
client.GetAsync(url + "ami-id").ContinueWith(task =>
{
if (task.IsCompleted)
result.AmiId = task.Result.Content.ReadAsStringAsync().Result;
}),
client.GetAsync(url + "hostname").ContinueWith(task =>
{
if (task.IsCompleted)
result.Hostname = task.Result.Content.ReadAsStringAsync().Result;
}),
client.GetAsync(url + "instance-id").ContinueWith(task =>
{
if (task.IsCompleted)
result.InstanceId = task.Result.Content.ReadAsStringAsync().Result;
}),
client.GetAsync(url + "instance-type").ContinueWith(task =>
{
if (task.IsCompleted)
result.InstanceType = task.Result.Content.ReadAsStringAsync().Result;
})
);
}
catch (Exception exception)
{
Log.Error(exception, "Oops");
}
return result;
}
public static Ec2MetaData Create(string url = "http://169.254.169.254/latest/meta-data/")
{
var result = new Ec2MetaData();
var client = new HttpClient();
try
{
Task.WaitAll(
client.GetAsync(url + "ami-id").ContinueWith(task =>
{
if (task.IsCompleted)
{
result.AmiId = task.Result.Content.ReadAsStringAsync().Result;
}
}),
client.GetAsync(url + "hostname").ContinueWith(task =>
{
if (task.IsCompleted)
{
result.Hostname = task.Result.Content.ReadAsStringAsync().Result;
}
}),
client.GetAsync(url + "instance-id").ContinueWith(task =>
{
if (task.IsCompleted)
{
result.InstanceId = task.Result.Content.ReadAsStringAsync().Result;
}
}),
client.GetAsync(url + "instance-type").ContinueWith(task =>
{
if (task.IsCompleted)
{
result.InstanceType = task.Result.Content.ReadAsStringAsync().Result;
}
})
);
}
catch (Exception exception)
{
Log.Error(exception, "Oops");
}
return(result);
}
static void Main(string[] args)
{
Console.WriteLine("I'm ALIVE!");
var loggerConfiguration = new LoggerConfiguration()
.WriteTo.ColoredConsole()
.Enrich.WithMachineName()
.MinimumLevel.Debug();
var logger = loggerConfiguration.CreateLogger();
Log.Logger = logger;
Log.Information("Starting up. Testing out all things C# 6.");
var sleepPeriodInSeconds = 60;
if (args.Length > 0 && int.TryParse(args[0], out sleepPeriodInSeconds))
{
Log.Information("Sleep interval provided. Setting sleep period {SleepPeriodInSeconds}.", sleepPeriodInSeconds);
}
var sleepPeriod = TimeSpan.FromSeconds(sleepPeriodInSeconds);
Log.Information("EC2 Host information, if any. {@Ec2MetaData}", Ec2MetaData.Create());
while (true)
{
var coinToss = Random.Next(0, 2);
Log.Information("Coin Toss... {CoinToss}", coinToss);
var instance = coinToss == 0 ? new WithPropertyInit() : null;
Log.Information("Doing Work... {NameOfProp}", instance?.NameOfProp());
Log.Information("{@Instance}", instance);
Thread.Sleep(sleepPeriod);
}
}
