/// <summary>
/// Returns credentials for a Vault AppRole.
/// </summary>
/// <param name="roleName">The role name.</param>
/// <param name="cancellationToken">The optional <see cref="CancellationToken"/>.</param>
/// <returns>The <see cref="HiveCredentials"/>.</returns>
/// <exception cref="HttpException">Thrown for Vault communication problems.</exception>
public async Task <HiveCredentials> GetAppRoleCredentialsAsync(string roleName, CancellationToken cancellationToken = default)
{
Covenant.Requires <ArgumentException>(HiveDefinition.IsValidName(roleName));
string roleId;
string secretId;
// Verify that the role exists.
try
{
await ReadDynamicAsync($"auth/approle/role/{roleName}", cancellationToken : cancellationToken);
}
catch (Exception e)
{
throw new HttpException($"Unable to access Vault [AppRole={roleName}]", e);
}
// Fetch the role ID.
try
{
var response = await ReadDynamicAsync($"auth/approle/role/{roleName}/role-id", cancellationToken : cancellationToken);
roleId = response.role_id;
}
catch (Exception e)
{
throw new HttpException($"Unable to fetch the role ID for Vault [AppRole={roleName}]", e);
}
// Fetch a secret ID.
try
{
var response = (await WriteJsonAsync($"auth/approle/role/{roleName}/secret-id", cancellationToken)).data;
secretId = response.secret_id;
}
catch (Exception e)
{
throw new HttpException($"Unable to fetch the role ID for Vault [AppRole={roleName}]", e);
}
// Return the credentials.
return(HiveCredentials.FromVaultRole(roleId, secretId));
}
//---------------------------------------------------------------------
// Static members
/// <summary>
/// Opens a Vault connection using <see cref="HiveCredentials"/>.
/// </summary>
/// <param name="uri">The Vault server URI.</param>
/// <param name="credentials">The Vault credentials.</param>
/// <returns>The <see cref="VaultClient"/>.</returns>
public static VaultClient OpenWithToken(Uri uri, HiveCredentials credentials)
{
Covenant.Requires <ArgumentNullException>(uri != null);
Covenant.Requires <ArgumentNullException>(credentials != null);
var vaultClient = new VaultClient(uri);
switch (credentials.Type)
{
case HiveCredentialsType.VaultToken:
vaultClient.jsonClient.DefaultRequestHeaders.Add("X-Vault-Token", credentials.VaultToken);
break;
case HiveCredentialsType.VaultAppRole:
dynamic loginPayload = new ExpandoObject();
loginPayload.role_id = credentials.VaultRoleId;
loginPayload.secret_id = credentials.VaultSecretId;
var loginResponse = vaultClient.jsonClient.PostAsync($"/{vaultApiVersion}/auth/approle/login", loginPayload).Result.AsDynamic();
vaultClient.jsonClient.DefaultRequestHeaders.Add("X-Vault-Token", (string)loginResponse.auth.client_token);
break;
default:
throw new NotImplementedException($"Credentials type: {credentials.Type}");
}
// $todo(jeff.lill):
//
// This should be set from config. See issue:
//
// https://github.com/jefflill/NeonForge/issues/253
vaultClient.AllowSelfSignedCertificates = true;
return(vaultClient);
}
/// <summary>
/// Called internally by <see cref="HiveHelper.OpenHiveRemote(DebugSecrets, DebugConfigs, string, bool)"/>
/// to create any requested Vault and Consul credentials and add them to the dictionary.
/// </summary>
/// <param name="hive">The attached hive.</param>
/// <param name="hiveLogin">The hive login.</param>
internal void Realize(HiveProxy hive, HiveLogin hiveLogin)
{
this.hiveLogin = hiveLogin;
HiveCredentials credentials;
foreach (var request in credentialRequests)
{
switch (request.Type)
{
case CredentialType.VaultToken:
// Serialize the credentials as JSON and persist.
credentials = HiveCredentials.FromVaultToken(request.Token);
Add(request.SecretName, NeonHelper.JsonSerialize(credentials, Formatting.Indented));
break;
case CredentialType.VaultAppRole:
// Serialize the credentials as JSON and persist.
credentials = VaultClient.GetAppRoleCredentialsAsync(request.RoleName).Result;
Add(request.SecretName, NeonHelper.JsonSerialize(credentials, Formatting.Indented));
break;
case CredentialType.ConsulToken:
// $todo(jeff.lill): Implement this.
break;
}
}
}