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Version: v1.5.0

HashiCorp Vault secret provider

HashiCorp Vault secret provider brings secrets from the KeyValue secret engine to your application.

Installation#

Adding secrets from HashiCorp Vault into the secret store requires following package:

PM > Install-Package Arcus.Security.Providers.HashiCorp

Configuration#

After installing the package, the addtional extensions becomes available when building the secret store.

using Microsoft.Extensions.Hosting;
public class Program{    public static void Main(string[] args)    {        CreateHostBuilder(args).Build().Run();    }
    public static IHostBuilder CreateHostBuilder(string[] args)    {            return Host.CreateDefaultBuilder(args)                   .ConfigureSecretStore((context, config, builder) =>                   {                         // Adding the HashiCorp Vault secret provider with the built-in overloads.                         // =======================================================================                                                  // UserPass authentication built-in overload:                         // ------------------------------------------                         builder.AddHashiCorpVaultWithUserPass(                             // URI where the HashiCorp Vault is running.                             vaultServerUriWithPort: "https://uri.to.your.running.vault:5200",                             // Username/Password combination to authenticate with the vault.                             username: "admin",                             password: "s3cr3t",                             // Path where the secrets are stored in the KeyValue secret engine.                             secretPath: "my-secrets"                         );
                         // Following defaults can be overridden:
                        // Mount point of UserPass athentication (default: userpass).                        builder.AddHashiCorpVaultWithUserPass(..., options => options.UserPassMountPoint: "myuserpass");
                         // Version of the KeyValue secret engine (default: V2).                         builder.AddHashiCorpVaultWithUserPass(..., options => options.KeyValueVersion: VaultKeyValueSecretEngineVersion.V1);
                        // Mount point of KeyValue secret engine (default: kv-v2).                        builder.AddHashiCorpVaultWithUserPass(..., options => options.KeyValueMountPoint: "secret");
                        // Adding the HashiCorp Vault secret provider with UserPass authentication, using `-` instead of `:` when looking up secrets.                        // Example - When looking up `Foo:Bar` it will be changed to `Foo-Bar`.                        builder.AddHashiCorpVaultWithUserPass(..., mutateSecretName: secretName => secretName.Replace(":", "-"));
                        // Providing an unique name to this secret provider so it can be looked up later.                        // See: "Retrieve a specific secret provider from the secret store"                        builder.AddHashiCorpVault(..., name: "HashiCorp"); 
                        // Kubernetes authentication built-in overload:                        // --------------------------------------------                        builder.AddHashiCorpVaultWithKubernetes(                            // URI where the HashiCorp Vault is running.                             vaultServerUriWithPort: "https://uri.to.your.running.vault:5200",                             // Role name of the Kubernetes service account.                             roleName: "admin",                             // JSON web token (JWT) of the Kubernetes service account,                             jwt: "ey.xxx.xxx",                            // Path where the secrets are stored in the KeyValue secret engine.                             secretPath: "my-secrets"                        );
                        // Mount point of Kubernetes authentication (default: kubernetes).                        builder.AddHashiCorpVaultWithKubernetes(..., options => options.KubernetesMountPoint: "mykubernetes");
                         // Version of the KeyValue secret engine (default: V2).                         builder.AddHashiCorpVaultWithKubernetes(..., options => options.KeyValueVersion: VaultKeyValueSecretEngineVersion.V1);
                        // Mount point of KeyValue secret engine (default: kv-v2).                        builder.AddHashiCorpVaultWithKubernetes(..., options => options.KeyValueMountPoint: "secret");
                        // Adding the HashiCorp Vault secret provider with Kubernetes authentication, using `-` instead of `:` when looking up secrets.                        // Example - When looking up `Foo:Bar` it will be changed to `Foo-Bar`.                        builder.AddHashiCorpVaultWithKubernetes(..., mutateSecretname: secretName => secretName.Replace(":", "-"));
                        // Providing an unique name to this secret provider so it can be looked up later.                        // See: "Retrieve a specific secret provider from the secret store"                        builder.AddHashiCorpVault(..., name: "HashiCorp"); 
                        // Custom settings overload for when using the [VaultSharp](https://github.com/rajanadar/VaultSharp) settings directly:                        // --------------------------------------------------------------------------------------------------------------------                        var tokenAuthentication = new TokenAuthMethodInfo("token");                        var settings = VaultClientSettings("http://uri.to.your.running.vault.5200", tokenAuthentication);                        builder.AddHashiCorpVault(                            settings,                             // Path where the secrets are stored in the KeyValue secret engine.                            secretPath: "my-secrets");
                        // Version of the KeyValue secret engine (default: V2).                         builder.AddHashiCorpVault(..., options => options.KeyValueVersion: VaultKeyValueSecretEngineVersion.V1);
                        // Mount point of KeyValue secret engine (default: kv-v2).                        builder.AddHashiCorpVault(..., options => options.KeyValueMountPoint: "secret");
                        // Adding the HashiCorp Vault secret provider, using `-` instead of `:` when looking up secrets.                        // Example - When looking up `Foo:Bar` it will be changed to `Foo-Bar`.                        builder.AddHashiCorpVault(..., mutateSecretName: secretName => secretName.Replace(":", "-"));
                        // Providing an unique name to this secret provider so it can be looked up later.                        // See: "Retrieve a specific secret provider from the secret store"                        builder.AddHashiCorpVault(..., name: "HashiCorp"); 
                        // Additional settings:                        // -------------------
                        // Tracking the HashiCorp Vault dependency which works well together with Application Insights (default: `false`).                        // See https://observability.arcus-azure.net/features/writing-different-telemetry-types#measuring-custom-dependencies for more information.                        builder.AddHashiCorpVault(..., options => options.TrackDependency = true);                    })                    .ConfigureWebHostDefaults(webBuilder => webBuilder.UseStartup<Startup>());    }}