Deploy Service Fabric from powershell. Error -> Get-ServiceFabricClusterManifest : Cluster connection instance is null

Question

I am trying to publish Service Fabric application to Azure with powershell. I want to connect to the cluster and then call script "Deploy-FabricApplication.ps1"(one that is generated when new project is created in visual studio)

To do that I have created new script file which is responsible for connecting with cluster and then from that same script file I am calling "Deploy-FabricApplication.ps1".

After launching my script I am getting following error:

Get-ServiceFabricClusterManifest : Cluster connection instance is null
At C:\Program Files\Microsoft SDKs\Service Fabric\Tools\PSModule\ServiceFabricSDK\Publish-UpgradedServiceFabricApplication.ps1:116 char:28
+     $clusterManifestText = Get-ServiceFabricClusterManifest
+                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : ResourceUnavailable: (:) [Get-ServiceFabricClusterManifest], NullReferenceException
+ FullyQualifiedErrorId : GetClusterConnectionErrorId,Microsoft.ServiceFabric.Powershell.GetClusterManifest

In connection script and Deploy-FabricApplication.ps1 I am calling "Test-ServiceFabricClusterConnection" and in both scripts it returns True also in both scripts I am calling "Get-ServiceFabricClusterManifest" and in both cases it returns to me manifest but when I have added "Test-ServiceFabricClusterConnection" to "Publish-UpgradedServiceFabricApplication.ps1" then it has returned that same error as mentioned befor but for "Test-ServiceFabricClusterConnection" call.

Code for connecting script:

Param
(
    [String]
    $PublishProfileFile,

    [String]
    $ApplicationPackagePath,

    [Switch]
    $DeployOnly,

    [Boolean]
    $UnregisterUnusedApplicationVersionsAfterUpgrade,

    [String]
    [ValidateSet('None', 'ForceUpgrade', 'VetoUpgrade')]
    $OverrideUpgradeBehavior = 'None',

    [String]
    [ValidateSet('Never','Always','SameAppTypeAndVersion')]
    $OverwriteBehavior = 'Never',

    [Switch]
    $SkipPackageValidation,

    [String]
    $ConnectionEndpoint,

    [String]
    $ServerCertThumbprint,

    [String]
    $FindType,

    [String]
    $FindValue,

    [String]
    $StoreLocation,

    [String]
    $StoreName
)

$connectArgs = @{ ConnectionEndpoint = $ConnectionEndpoint;  X509Credential = $True;  StoreLocation = $StoreLocation;  StoreName = $StoreName;  ServerCertThumbprint = $ServerCertThumbprint; FindType = $FindType;  FindValue = $FindValue }

try
{
    Connect-ServiceFabricCluster @connectArgs;
    $connection = Get-ServiceFabricClusterConnection;
    Write-Host $connection;
    $m = Get-ServiceFabricClusterManifest
    Write-Host $m;
}
catch [System.Fabric.FabricObjectClosedException]
{
    Write-Warning "Service Fabric cluster may not be connected."
    throw
}

.\Deploy-FabricApplication.ps1 -PublishProfileFile $PublishProfileFile -ApplicationPackagePath $ApplicationPackagePath -OverrideUpgradeBehavior $OverrideUpgradeBehavior -OverwriteBehavior $OverwriteBehavior -DeployOnly:$DeployOnly -UnregisterUnusedApplicationVersionsAfterUpgrade:$UnregisterUnusedApplicationVersionsAfterUpgrade -UseExistingClusterConnection:$true -SkipPackageValidation:$SkipPackageValidation

To summarize, I have no idea how to establish connection to cluster and then use it in Deploy-FabricApplication.ps1

Thanks for help

Answer 1

When calling Connect-ServiceFabricCluster a local $clusterConnection variable is set. Some of the SDK scripts then expect that variable to be set, but because you're executing your script in different scope, that local variable isn't available to them.

You can either dot source the call to Deploy-FabricApplication.ps1

. .\Deploy-FabricApplication.ps1 -PublishProfileFile $PublishProfileFile -ApplicationPackagePath $ApplicationPackagePath -OverrideUpgradeBehavior $OverrideUpgradeBehavior -OverwriteBehavior $OverwriteBehavior -DeployOnly:$DeployOnly -UnregisterUnusedApplicationVersionsAfterUpgrade:$UnregisterUnusedApplicationVersionsAfterUpgrade -UseExistingClusterConnection:$true -SkipPackageValidation:$SkipPackageValidation

or create a $global:clusterConnection variable that contains the local $clusterConnection variable

$global:clusterConnection = $clusterConnection