public static async Task <InstanceLocator> CreateOrStartInstanceAsync(
string name,
string machineType,
string imageFamily,
InstanceServiceAccount serviceAccount,
IEnumerable <Metadata.ItemsData> metadataItems)
{
var computeEngine = TestProject.CreateComputeService();
var metadata = new Metadata()
{
Items = new List <Metadata.ItemsData>(metadataItems.ToList())
};
// Add metdata that marks this instance as temporary.
metadata.Add("type", "auto-cleanup");
metadata.Add("ttl", "120"); // minutes
var locator = new InstanceLocator(
TestProject.ProjectId,
TestProject.Zone,
name);
try
{
TraceSources.Common.TraceVerbose(
"Trying to create new instance {0}...", name);
IList <ServiceAccount> serviceAccounts = null;
if (serviceAccount == InstanceServiceAccount.ComputeDefault)
{
serviceAccounts = new List <ServiceAccount>()
{
new ServiceAccount()
{
Email = await GetComputeEngineDefaultServiceAccount(),
Scopes = new [] { "https://www.googleapis.com/auth/cloud-platform" }
}
};
}
await computeEngine.Instances.Insert(
new Apis.Compute.v1.Data.Instance()
{
Name = name,
MachineType = $"zones/{locator.Zone}/machineTypes/{machineType}",
Disks = new[]
{
new AttachedDisk()
{
AutoDelete = true,
Boot = true,
InitializeParams = new AttachedDiskInitializeParams()
{
SourceImage = imageFamily
}
}
},
Metadata = metadata,
NetworkInterfaces = new[]
{
new NetworkInterface()
{
AccessConfigs = new []
{
new AccessConfig()
}
}
},
Scheduling = new Scheduling()
{
Preemptible = true
},
ServiceAccounts = serviceAccounts
},
locator.ProjectId,
locator.Zone).ExecuteAsync();
await AwaitInstanceCreatedAndReady(
computeEngine.Instances,
locator);
return(locator);
}
catch (GoogleApiException e) when(e.Error != null && e.Error.Code == 409)
{
// Instance already exists - make sure it's running then.
var instance = await computeEngine.Instances
.Get(
locator.ProjectId,
locator.Zone,
locator.Name)
.ExecuteAsync();
if (instance.Status == "RUNNING" ||
instance.Status == "PROVISIONING" ||
instance.Status == "STAGING")
{
TraceSources.Common.TraceVerbose(
"Instance {0} exists and is running...", locator.Name);
await AwaitInstanceCreatedAndReady(
computeEngine.Instances,
locator);
return(locator);
}
else if (instance.Status == "TERMINATED")
{
TraceSources.Common.TraceVerbose(
"Instance {0} exists, but is TERMINATED, starting...", locator.Name);
// Reapply metadata.
await computeEngine.Instances.AddMetadataAsync(
locator,
metadata,
CancellationToken.None);
await computeEngine.Instances.Start(
locator.ProjectId,
locator.Zone,
locator.Name)
.ExecuteAsync();
await AwaitInstanceCreatedAndReady(
computeEngine.Instances,
locator);
return(locator);
}
else
{
TraceSources.Common.TraceError(
"Creating instance {0} failed, current status is {1}",
locator.Name,
instance.Status);
TraceSources.Common.TraceError(e);
throw;
}
}
}
private async Task CreateOrStartInstanceAsync()
{
var computeEngine = TestProject.CreateComputeService();
try
{
var instance = await computeEngine.Instances
.Get(
this.Locator.ProjectId,
this.Locator.Zone,
this.Locator.Name)
.ExecuteAsync();
if (instance.Status == "STOPPED")
{
await computeEngine.Instances.Start(
this.Locator.ProjectId,
this.Locator.Zone,
this.Locator.Name)
.ExecuteAsync();
}
await AwaitInstanceCreatedAndReady();
}
catch (Exception)
{
var metadata = new List <Metadata.ItemsData>(this.metadata.ToList());
// Add metdata that marks this instance as temporary.
metadata.Add(new Metadata.ItemsData()
{
Key = "type",
Value = "auto-cleanup"
});
metadata.Add(new Metadata.ItemsData()
{
Key = "ttl",
Value = "120" // minutes
});
await computeEngine.Instances.Insert(
new Apis.Compute.v1.Data.Instance()
{
Name = this.Locator.Name,
MachineType = $"zones/{this.Locator.Zone}/machineTypes/{this.machineType}",
Disks = new[]
{
new AttachedDisk()
{
AutoDelete = true,
Boot = true,
InitializeParams = new AttachedDiskInitializeParams()
{
SourceImage = this.imageFamily
}
}
},
Metadata = new Metadata()
{
Items = metadata
},
NetworkInterfaces = new[]
{
new NetworkInterface()
{
AccessConfigs = new []
{
new AccessConfig()
}
}
}
},
this.Locator.ProjectId,
this.Locator.Zone).ExecuteAsync();
await AwaitInstanceCreatedAndReady();
}
}
