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Code: Select all

public class KeyVaultService : IKeyVaultService
{
private readonly SecretClient _secretClient;

public KeyVaultService(string keyVaultName)
{
_secretClient = new SecretClient(new Uri($"https://{keyVaultName}.vault.azure.net"), new DefaultAzureCredential());
}

public string GetSecret(string keyName)
{
KeyVaultSecret secret = _secretClient.GetSecret(keyName);
return secret.Value;
}
}

public class Program
{
public static void Main(string[] args)
{
WebApplicationBuilder? builder = WebApplication.CreateBuilder(args);
// ... configuring logging, etc ...

var keyVault = new KeyVaultService(keyVaultName);
// this is where it fails, but only in the Container app
// locally works fine.
string conn = keyVault.GetSecret("ConnectionString");

// registering a service that needs connectionString in its constructor.

var app = builder.Build();

// after Build() the Key Vault works fine.
keyVault = new KeyVaultService(keyVaultName);
conn = keyVault.GetSecret("ConnectionString");

// omitting unrelated code, like app.Run()
}
}

Code: Select all

WebApplicationBuilder? builder = WebApplication.CreateBuilder(args);
builder.Configuration.AddAzureKeyVault(XXXXX, new DefaultAzureCredential());
builder.ConfigureDatabase(builder.Configuration["ConnectionString"]);
var app = builder.Build();