public void UnitTestDoWork_With_No_Explicit_Roles_Configured_For_White_List_Service()
{
MockRepository mockRepository = new MockRepository();
WhiteListService whiteListService = new WhiteListService { Name = "wls1" };
WhiteListService[] whiteListServices = new[] { whiteListService };
// Arrange
ISubscription mockSubscription = mockRepository.StrictMock<ISubscription>();
mockSubscription
.Expect(s => s.ListHostedServices())
.Repeat.Once()
.Return(new[] { "wls1" });
mockSubscription
.Expect(s => s.SubscriptionId)
.Repeat.Any()
.Return(SubscriptionId);
mockSubscription
.Expect(s => s.CertificateThumbprint)
.Repeat.Any()
.Return(CertificateThumbprint);
ISubscription[] subscriptions = new[] { mockSubscription };
IDeployment mockDeployment = mockRepository.StrictMock<IDeployment>();
IOperation mockOperation = mockRepository.StrictMock<IOperation>();
// Act
// There are no roles configured for the white list service, therefore there should be no checks made against
// the service, we just accept however it is deployed for instance count or instance size.
mockRepository.ReplayAll();
WhiteListForecastWorker whiteListForecastWorker = new WhiteListForecastWorker(subscriptions, mockDeployment, mockOperation, whiteListServices, 1);
whiteListForecastWorker.DoWork();
whiteListForecastWorker.DoWork(); // Call twice to test the polling interval (nothing should be invoked the second time).
// Assert
mockRepository.VerifyAll();
}
public void UnitTestDoWork_With_One_Role_Having_Instance_Count_Too_High_And_Second_Role_Having_Instance_Size_Too_Large()
{
MockRepository mockRepository = new MockRepository();
WhiteListService whiteListService = new WhiteListService { Name = "wls1" };
WhiteListRole whiteListRole = new WhiteListRole { Name = "wlr1", MaxInstanceSize = InstanceSize.ExtraSmall, MaxInstanceCount = 1 };
whiteListService.Roles.Add(whiteListRole);
WhiteListService[] whiteListServices = new[] { whiteListService };
// Arrange
ISubscription mockSubscription = mockRepository.StrictMock<ISubscription>();
mockSubscription
.Expect(s => s.ListHostedServices())
.Repeat.Once()
.Return(new[] { "bls1", "wls1" });
mockSubscription
.Expect(s => s.SubscriptionId)
.Repeat.Any()
.Return(SubscriptionId);
mockSubscription
.Expect(s => s.CertificateThumbprint)
.Repeat.Any()
.Return(CertificateThumbprint);
ISubscription[] subscriptions = new[] { mockSubscription };
IDeployment mockDeployment = mockRepository.StrictMock<IDeployment>();
IOperation mockOperation = mockRepository.StrictMock<IOperation>();
// Delete the black listed service from Staging and Production
SetupDeleteRequestWithStatusCheck(mockDeployment, mockOperation, "bls1", DeploymentSlot.Staging, "deleteRequest1");
SetupDeleteRequestWithStatusCheck(mockDeployment, mockOperation, "bls1", DeploymentSlot.Production, "deleteRequest2");
// Get the instance size of White List Role 1 from Staging, all okay.
mockDeployment
.Expect(d => d.GetInstanceSize(SubscriptionId, CertificateThumbprint, "wls1", DeploymentSlot.Staging, "wlr1"))
.Repeat.Once()
.Return(InstanceSize.ExtraSmall.ToString());
// Get the instance count of White List Role 1 from Staging, horizontally scale as a result.
mockDeployment
.Expect(d => d.GetInstanceCount(SubscriptionId, CertificateThumbprint, "wls1", DeploymentSlot.Staging, "wlr1"))
.Repeat.Once()
.Return(2);
SetupHorizontallyScaleWithStatusCheck(mockDeployment, mockOperation, "wls1", DeploymentSlot.Staging, new[] { new HorizontalScale { RoleName = "wlr1", InstanceCount = 1 } }, "scaleRequest1");
// Get the instance size of the White List Role 1 from Production, delete as a result.
mockDeployment
.Expect(d => d.GetInstanceSize(SubscriptionId, CertificateThumbprint, "wls1", DeploymentSlot.Production, "wlr1"))
.Repeat.Once()
.Return(InstanceSize.ExtraLarge.ToString());
SetupDeleteRequestWithStatusCheck(mockDeployment, mockOperation, "wls1", DeploymentSlot.Production, "deleteRequest3");
// Act
mockRepository.ReplayAll();
WhiteListForecastWorker whiteListForecastWorker = new WhiteListForecastWorker(subscriptions, mockDeployment, mockOperation, whiteListServices, 1);
whiteListForecastWorker.DoWork();
whiteListForecastWorker.DoWork(); // Call twice to test the polling interval (nothing should be invoked the second time).
// Assert
mockRepository.VerifyAll();
}
public WhiteListForecastWorker(
ISubscription[] subscriptions,
IDeployment deployment,
IOperation operation,
WhiteListService[] allowedServices,
int pollingIntervalInMinutes)
: base(GetWorkerId(typeof(WhiteListForecastWorker).FullName))
{
this.subscriptions = subscriptions;
this.deployment = deployment;
this.operation = operation;
this.allowedServices = allowedServices;
this.pollingIntervalInMinutes = pollingIntervalInMinutes;
}
public WhiteListConfiguration GetWindowsAzureHostedServiceWhiteListConfiguration()
{
// The "StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList" property is
// never null because it's a "Configuration Element Collection". So the best way to test if the White
// List has been explicitly configured is if the "PollingIntervalInMinutes" is set (i.e. not "0").
if (StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList.PollingIntervalInMinutes > 0)
{
WhiteListConfiguration whiteListConfiguration = new WhiteListConfiguration();
whiteListConfiguration.IncludeDeploymentCreateServices = StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList.IncludeDeploymentCreateServices;
whiteListConfiguration.IncludeDeploymentDeleteServices = StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList.IncludeDeploymentDeleteServices;
whiteListConfiguration.IncludeHorizontalScaleServices = StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList.IncludeHorizontalScaleServices;
whiteListConfiguration.PollingIntervalInMinutes = StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList.PollingIntervalInMinutes;
foreach (ServiceConfigurationElement serviceConfigurationElement in StealFocusForecastConfiguration.Instance.WindowsAzure.HostedService.WhiteList)
{
WhiteListService whiteListService = new WhiteListService { Name = serviceConfigurationElement.Name };
foreach (RoleConfigurationElement roleConfigurationElement in serviceConfigurationElement.Roles)
{
WhiteListRole whiteListRole = new WhiteListRole { Name = roleConfigurationElement.Name };
if (!string.IsNullOrEmpty(roleConfigurationElement.MaxInstanceSize))
{
InstanceSize instanceSize;
bool parsed = System.Enum.TryParse(roleConfigurationElement.MaxInstanceSize, true, out instanceSize);
if (!parsed)
{
string exceptionMessage = string.Format(CultureInfo.CurrentCulture, "The configured instance size of '{0}' could not be parsed as a valid Azure instance size. Valid values are '{1}', '{2}', '{3}', '{4}' or '{5}'.", roleConfigurationElement.MaxInstanceSize, InstanceSize.ExtraSmall, InstanceSize.Small, InstanceSize.Medium, InstanceSize.Large, InstanceSize.ExtraLarge);
throw new ForecastException(exceptionMessage);
}
whiteListRole.MaxInstanceSize = instanceSize;
}
if (roleConfigurationElement.MaxInstanceCount > 0)
{
whiteListRole.MaxInstanceCount = roleConfigurationElement.MaxInstanceCount;
}
whiteListService.Roles.Add(whiteListRole);
}
whiteListConfiguration.Services.Add(whiteListService);
}
return whiteListConfiguration;
}
return null;
}
private bool FindIfDeployedInstanceSizesExceedWhiteListConfiguration(ISubscription subscription, string hostedServiceName, WhiteListService whiteListService, string deploymentSlot)
{
if (whiteListService.Roles.Count == 0)
{
// No explicit roles configured, so just allow whatever is there.
return false;
}
foreach (WhiteListRole whiteListRole in whiteListService.Roles)
{
if (whiteListRole.MaxInstanceSize.HasValue)
{
string actualInstanceSizeValue = this.deployment.GetInstanceSize(subscription.SubscriptionId, subscription.CertificateThumbprint, hostedServiceName, deploymentSlot, whiteListRole.Name);
InstanceSize actualInstanceSize = (InstanceSize)Enum.Parse(typeof(InstanceSize), actualInstanceSizeValue);
if (actualInstanceSize > whiteListRole.MaxInstanceSize.Value)
{
return true;
}
}
}
return false;
}
private HorizontalScale[] FindHorizontalScaleChangesComparedToWhitelist(ISubscription subscription, string hostedServiceName, WhiteListService whiteListService, string deploymentSlot)
{
List<HorizontalScale> horizontalScales = new List<HorizontalScale>();
foreach (WhiteListRole whiteListRole in whiteListService.Roles)
{
if (whiteListRole.MaxInstanceCount.HasValue)
{
int instanceCount = this.deployment.GetInstanceCount(subscription.SubscriptionId, subscription.CertificateThumbprint, hostedServiceName, deploymentSlot, whiteListRole.Name);
if (instanceCount > whiteListRole.MaxInstanceCount)
{
HorizontalScale horizontalScale = new HorizontalScale { InstanceCount = whiteListRole.MaxInstanceCount.Value, RoleName = whiteListRole.Name };
horizontalScales.Add(horizontalScale);
}
}
}
return horizontalScales.ToArray();
}
private void CheckDeploymentAgainstItsWhiteListEntry(ISubscription subscription, string hostedServiceName, WhiteListService whiteListService, string deploymentSlot)
{
bool deployedInstanceSizesExceedWhiteListConfiguration = this.FindIfDeployedInstanceSizesExceedWhiteListConfiguration(subscription, hostedServiceName, whiteListService, deploymentSlot);
if (deployedInstanceSizesExceedWhiteListConfiguration)
{
this.DeleteDeployedService(subscription, hostedServiceName, deploymentSlot);
return;
}
HorizontalScale[] horizontalScales = this.FindHorizontalScaleChangesComparedToWhitelist(subscription, hostedServiceName, whiteListService, deploymentSlot);
if (horizontalScales.Length > 0)
{
this.HorizontallyScaleDeployedServiceRole(subscription, hostedServiceName, deploymentSlot, horizontalScales);
}
}
internal static WhiteListForecastWorker GetWhiteListForecastWorker()
{
IConfigurationSource configurationSource = GetConfigurationSource();
WhiteListConfiguration whiteListConfiguration = configurationSource.GetWindowsAzureHostedServiceWhiteListConfiguration();
if (whiteListConfiguration != null)
{
SubscriptionConfiguration[] subscriptionConfigurations = configurationSource.GetAllWindowsAzureSubscriptionConfigurations();
ISubscription[] subscriptions = new ISubscription[subscriptionConfigurations.Length];
for (int i = 0; i < subscriptionConfigurations.Length; i++)
{
subscriptions[i] = subscriptionConfigurations[i].Convert();
}
if (whiteListConfiguration.IncludeDeploymentCreateServices)
{
foreach (DeploymentCreateConfiguration deploymentCreateConfiguration in configurationSource.GetWindowsAzureDeploymentCreateConfigurations())
{
bool alreadyIncluded = false;
foreach (WhiteListService configuredWhiteListService in whiteListConfiguration.Services)
{
if (configuredWhiteListService.Name == deploymentCreateConfiguration.ServiceName)
{
alreadyIncluded = true;
}
}
if (!alreadyIncluded)
{
WhiteListService whiteListService = new WhiteListService { Name = deploymentCreateConfiguration.ServiceName };
whiteListConfiguration.Services.Add(whiteListService);
}
}
}
if (whiteListConfiguration.IncludeDeploymentDeleteServices)
{
foreach (DeploymentDeleteConfiguration deploymentDeleteConfiguration in configurationSource.GetWindowsAzureDeploymentDeleteConfigurations())
{
bool alreadyIncluded = false;
foreach (WhiteListService configuredWhiteListService in whiteListConfiguration.Services)
{
if (configuredWhiteListService.Name == deploymentDeleteConfiguration.ServiceName)
{
alreadyIncluded = true;
}
}
if (!alreadyIncluded)
{
WhiteListService whiteListService = new WhiteListService { Name = deploymentDeleteConfiguration.ServiceName };
whiteListConfiguration.Services.Add(whiteListService);
}
}
}
if (whiteListConfiguration.IncludeHorizontalScaleServices)
{
foreach (ScheduledHorizontalScaleConfiguration windowsAzureScheduledHorizontalScaleConfiguration in configurationSource.GetWindowsAzureScheduledHorizontalScaleConfigurations())
{
bool alreadyIncluded = false;
foreach (WhiteListService configuredWhiteListService in whiteListConfiguration.Services)
{
if (configuredWhiteListService.Name == windowsAzureScheduledHorizontalScaleConfiguration.ServiceName)
{
alreadyIncluded = true;
}
}
if (!alreadyIncluded)
{
WhiteListService whiteListService = new WhiteListService { Name = windowsAzureScheduledHorizontalScaleConfiguration.ServiceName };
whiteListConfiguration.Services.Add(whiteListService);
}
}
}
WhiteListForecastWorker whiteListForecastWorker = new WhiteListForecastWorker(
subscriptions,
new Deployment(),
new Operation(),
whiteListConfiguration.Services.ToArray(),
whiteListConfiguration.PollingIntervalInMinutes);
return whiteListForecastWorker;
}
return null;
}