/// <summary>
/// Deletes 10 oldest instances if the number of instances is more than 14.
/// This is to clean up the stale instances in case of instance cleanup code may not get triggered.
/// </summary>
private async Task DeleteStaleInstancesAsync()
{
InstanceAdminClient instanceAdminClient = InstanceAdminClient.Create();
var listInstancesRequest = new ListInstancesRequest
{
Filter = "name:my-instance-processing-units- OR name:my-instance-multi-region-",
ParentAsProjectName = ProjectName.FromProject(ProjectId)
};
var instances = instanceAdminClient.ListInstances(listInstancesRequest);
if (instances.Count() < 15)
{
return;
}
var instancesToDelete = instances
.OrderBy(db => long.TryParse(
db.InstanceName.InstanceId.Replace("my-instance-processing-units-", "")
.Replace("my-instance-multi-region-", ""),
out long creationDate) ? creationDate : long.MaxValue)
.Take(10);
// Delete the instances.
foreach (var instance in instancesToDelete)
{
try
{
await instanceAdminClient.DeleteInstanceAsync(instance.InstanceName);
}
catch (Exception) { }
}
}
/// <summary>
/// Deletes 10 oldest instances if the number of instances is more than 14.
/// This is to clean up the stale instances in case of instance cleanup code may not get triggered.
/// </summary>
private async Task DeleteStaleInstancesAsync()
{
InstanceAdminClient instanceAdminClient = InstanceAdminClient.Create();
var listInstancesRequest = new ListInstancesRequest
{
Filter = "name:my-instance-processing-units- OR name:my-instance-multi-region-",
ParentAsProjectName = ProjectName.FromProject(ProjectId)
};
var instances = instanceAdminClient.ListInstances(listInstancesRequest);
if (instances.Count() < 15)
{
return;
}
long fiveHoursAgo = DateTimeOffset.UtcNow.AddHours(-5).ToUnixTimeMilliseconds();
var instancesToDelete = instances
.Select(db => (db, CreationUnixTimeMilliseconds(db)))
.Where(pair => pair.Item2 < fiveHoursAgo)
.Select(pair => pair.db);
// Delete the instances.
foreach (var instance in instancesToDelete)
{
try
{
await instanceAdminClient.DeleteInstanceAsync(instance.InstanceName);
}
catch (Exception) { }
}
/// <summary>Snippet for ListInstances</summary>
public void ListInstances_RequestObject()
{
// Snippet: ListInstances(ListInstancesRequest,CallSettings)
// Create client
InstanceAdminClient instanceAdminClient = InstanceAdminClient.Create();
// Initialize request argument(s)
ListInstancesRequest request = new ListInstancesRequest
{
ParentAsProjectName = new ProjectName("[PROJECT]"),
};
// Make the request
PagedEnumerable <ListInstancesResponse, Instance> response =
instanceAdminClient.ListInstances(request);
// Iterate over all response items, lazily performing RPCs as required
foreach (Instance item in response)
{
// Do something with each item
Console.WriteLine(item);
}
// Or iterate over pages (of server-defined size), performing one RPC per page
foreach (ListInstancesResponse page in response.AsRawResponses())
{
// Do something with each page of items
Console.WriteLine("A page of results:");
foreach (Instance item in page)
{
Console.WriteLine(item);
}
}
// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page <Instance> singlePage = response.ReadPage(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (Instance item in singlePage)
{
Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;
// End snippet
}
