/// <summary>
/// This function will shutdown instances that are tagged with "ShutdownAfter" and a (UTC) date/time.
/// </summary>
/// <param name="input"></param>
/// <param name="context"></param>
/// <returns></returns>
public async Task FunctionHandler(Amazon.Lambda.CloudWatchEvents.ScheduledEvents.ScheduledEvent scheduledEvent, ILambdaContext context)
{
// We don't actually care about the scheduled event, it's just here to trigger the function
// Note: This only works for the first 1000 instances...
DescribeInstancesRequest request = new DescribeInstancesRequest()
{
MaxResults = 1000,
// Filter for only those instances that are tagged and are running.
Filters = new List <Filter>
{
new Filter("tag:ShutdownAfter", new List <string> {
"*"
}),
new Filter("instance-state-name", new List <string> {
"running"
})
}
};
DescribeInstancesResponse response = await _client.DescribeInstancesAsync(request);
context.Logger.LogLine($"Found {response.Reservations.Count} tagged instances");
foreach (var reservation in response.Reservations)
{
foreach (var instance in reservation.Instances)
{
await TryShutdownInstance(instance, context);
}
}
}
public async Task FunctionHandler(Amazon.Lambda.CloudWatchEvents.ScheduledEvents.ScheduledEvent cwe, ILambdaContext context)
{
//var envs = Newtonsoft.Json.JsonConvert.DeserializeObject<EnvsList>(cwe.Detail.ToString());
const string FUNCTION_NAME = "VilcapDateAssignTask";
var saasafrasClient = new SaasafrasClient(
System.Environment.GetEnvironmentVariable("BBC_SERVICE_URL"),
System.Environment.GetEnvironmentVariable("BBC_SERVICE_API_KEY")
);
var vilcapEnvar = System.Environment.GetEnvironmentVariable("VILCAP_ENVS");
var vilcapEnvs = JsonConvert.DeserializeObject <JsonHolder>(vilcapEnvar).Values;
var lockValue = await saasafrasClient.LockFunction(FUNCTION_NAME, cwe.Time.Ticks.ToString());
try
{
if (string.IsNullOrEmpty(lockValue))
{
context.Logger.LogLine($"Failed to acquire lock for {FUNCTION_NAME} at time {cwe.Time.Ticks.ToString()}");
return;
}
foreach (var e in vilcapEnvs)
{
context.Logger.LogLine($"--- Created events : {e.clientId}/{e.clientId}/{e.solutionId}/{e.version}");
var function = new Function();
await function.FunctionHandler(e, context);
}
return;
}
catch (System.Exception ex)
{
throw ex;
}
finally
{
await saasafrasClient.UnlockFunction(FUNCTION_NAME, cwe.Time.Ticks.ToString(), lockValue);
}
}
