JD2022-TU1/main/tools/framework/JD.Vault/SecretsManagement.cs

using System;
using System.Threading.Tasks;
using JD.SecretsManager;
using Microsoft.Extensions.Logging;

namespace JD.Vault
{
    public static class SecretsManagement
    {
        private sealed class NoLogger : ILogger<OidcTokenProvider>, ILogger<EnvironmentVariableTokenProvider>, ILogger<VaultTokenSecretsManager>
        {
            public IDisposable BeginScope<TState>(TState state) => null;

            public bool IsEnabled(LogLevel logLevel) => false;

            public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
            { }
        }

        private readonly static object _secretsManagerLock = new object();
        private static ISecretsManager _secretsManager;

        public static ISecretsManager GetSecretsManager()
        {
            lock (_secretsManagerLock)
            {
                if (_secretsManager != null)
                {
                    return _secretsManager;
                }

                IVaultConfiguration vaultConfiguration = new DefaultVaultConfiguration();

                NoLogger logger = new NoLogger();

                IVaultTokenProvider backupTokenProvider = new OidcTokenProvider(logger, vaultConfiguration);
                IVaultTokenProvider tokenProvider = new EnvironmentVariableTokenProvider(logger, backupTokenProvider);
                _secretsManager = new VaultTokenSecretsManager(
                    logger,
                    tokenProvider,
                    vaultConfiguration);

                bool isInitialised = Task.Run(() => _secretsManager.InitialiseAsync()).Result;

                if (!isInitialised)
                {
                    throw new Exception("Failed to initialise the secrets manager. Please contact support.");
                }

                return _secretsManager;
            }
        }
    }
}