How to set Environment Variable for Azure Service Fabric application through Azure DevOps pipelines-CodePudding

Our team has a Service Fabric application that has an environment variable defined in the ServiceManifest.xml file called connectionString

  <!-- Code package is your service executable. -->
  <CodePackage Name="Code" Version="1.0.0">
    <EntryPoint>
      <ExeHost>
        <Program>myMMAPI.exe</Program>
        <WorkingFolder>CodePackage</WorkingFolder>
      </ExeHost>
    </EntryPoint>
    <EnvironmentVariables>
      <EnvironmentVariable Name="ASPNETCORE_ENVIRONMENT" Value=""/>
      <EnvironmentVariable Name="connectionString" Value="Server=mydb.123abc.database.windows.net; Authentication=Active Directory Password; Encrypt=True; Database=mydevdb; User Id=myId;Password=****" />
    </EnvironmentVariables>
  </CodePackage>

We then can reference this environment variable in our Startup.cs class.

Constants.ConnectionString = Environment.GetEnvironmentVariable("connectionString");

However, we need to have this Environment Variable be set during the deployment using Azure DevOps Pipeline and not hard coded into this ServiceManifest.xml file.

Is there a way to pass this Environment Variable in Azure DevOps so we can change the connection string per environment?

CodePudding user response：

You can introduce tokens that you switch out with variables with this task in the pipeline: https://marketplace.visualstudio.com/items?itemName=qetza.replacetokens

These variables can be defined in the pipeline, but also in a separate file.

CodePudding user response：

You can use PowerShell script in the pipeline to modify the value in ServiceMainifest.xml.

For example:

$myConnectionString = " Server=mydb.123abc.database.windows.net; Authentication=Active Directory Password; Encrypt=True; Database=mydevdb; User Id=myId;Password=****
";

$serviceConfig = "path\ServiceManifest.xml"

Function updateConfig($config) 
{ 
$doc = (Get-Content $config) -as [Xml]
$root = $doc.get_DocumentElement();
$activeConnection = $root.EnvironmentVariables.SelectNodes("EnvironmentVariable");
$activeConnection.SetAttribute("connectionString", $myConnectionString);
$doc.Save($config)
} 

updateConfig($serviceConfig)