/// <summary>
/// Gets configuration components based off current context.
/// </summary>
/// <param name="config">The <see cref="KubeConfig"/>.</param>
/// <param name="cluster">The <see cref="Cluster"/>.</param>
/// <param name="user">The <see cref="User"/>.</param>
/// <returns>True on success, false otherwise.</returns>
public static bool TryGetCurrentContext(KubeConfig config, out Cluster cluster, out User user)
{
cluster = default(Cluster);
user = default(User);
if (null == config)
{
return(false);
}
Context context = config.Contexts.FirstOrDefault(p => p.Name == config.CurrentContext);
cluster = config.Clusters.FirstOrDefault(p => p.Name == context.ContextData.Cluster);
user = config.Users.FirstOrDefault(p => p.Name == context.ContextData.User);
return(true);
}
/// <summary>
/// Parses kubernetes config from specified path to <see cref="KubeConfig"/> object.
/// </summary>
/// <returns>The <see cref="KubeConfig"/>.</returns>
public static KubeConfig ParseKubeConfig(string path = null)
{
string kubeConfigFilePath = path ?? Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile, Environment.SpecialFolderOption.None), KubeConfigUtils.KUBE_CLIENT_CONFIG_PATH);
FileInfo kubeConfigFileInfo = new FileInfo(kubeConfigFilePath);
if (!kubeConfigFileInfo.Exists)
{
throw new Exception(string.Format("Kubernetes config file does not exist in path: {0}", kubeConfigFileInfo.FullName));
}
KubeConfig config = default(KubeConfig);
using (StreamReader reader = File.OpenText(kubeConfigFileInfo.FullName))
{
config = new Deserializer().Deserialize <KubeConfig>(reader);
}
return(config);
}
/// <summary>
/// Creates a new instance of <see cref="IKubernetesClient"/>.
/// </summary>
/// <param name="authType">The authentication type.</param>
/// <returns>Instance of <see cref="IKubernetesClient"/>.</returns>
public IKubernetesClient CreateClient(AuthType authType)
{
// Parse kube config from path
KubeConfig kubeConfigFile = KubeConfigUtils.ParseKubeConfig(this.kubeConfigFilePath);
// Get current context from kube config
Cluster cluster = default(Cluster);
User user = default(User);
if (!KubeConfigUtils.TryGetCurrentContext(kubeConfigFile, out cluster, out user))
{
throw new ApplicationException("Invalid config in %USERPROFILE%\\.kube\\config.");
}
// Build client
ApiClient client = new ApiClient(cluster.ClusterData.Server);
switch (authType)
{
case AuthType.BasicAuth:
client.RestClient.Authenticator = new HttpBasicAuthenticator(user.UserData.UserName, user.UserData.Password);
break;
case AuthType.TokenAuth:
client.RestClient.Authenticator = new OAuth2AuthorizationRequestHeaderAuthenticator(user.UserData.Token);
break;
case AuthType.SSLAuth:
client.RestClient.ClientCertificates = new X509CertificateCollection()
{
KubeConfigUtils.GenerateClientCert(user)
};
break;
default:
break;
}
return(new KubernetesClient(new Configuration(client)));
}
