public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(DnsResolveLiveness)} is checking DNS entries.");
foreach (var item in _options.ConfigureHosts.Values)
{
var ipAddresses = await Dns.GetHostAddressesAsync(item.Host);
foreach (var ipAddress in ipAddresses)
{
if (!item.Resolutions.Contains(ipAddress.ToString()))
{
_logger?.LogWarning($"The {nameof(DnsResolveLiveness)} check fail for {ipAddress} was not resolved from host {item.Host}.");
return(LivenessResult.UnHealthy("Ip Address {ipAddress} was not resolved from host {item.Host}"));
}
}
}
_logger?.LogInformation($"The {nameof(DnsResolveLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(DnsResolveLiveness)} check fail with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = new CancellationToken())
{
try
{
_logger?.LogInformation($"{nameof(RabbitMQLiveness)} is checking the RabbitMQ host.");
var factory = new ConnectionFactory()
{
Uri = new Uri(_rabbitMqConnectionString)
};
using (var connection = factory.CreateConnection())
using (var channel = connection.CreateModel())
{
_logger?.LogInformation($"The {nameof(RabbitMQLiveness)} check success.");
return(Task.FromResult(
LivenessResult.Healthy()));
}
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(RabbitMQLiveness)} check fail with the exception {ex.ToString()}.");
return(Task.FromResult(
LivenessResult.UnHealthy(ex)));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(IdSvrLiveness)} is checking the IdSvr on {_idSvrUri}.");
using (var httpClient = new HttpClient()
{
BaseAddress = _idSvrUri
})
{
var response = await httpClient.GetAsync(IDSVR_DISCOVER_CONFIGURATION_SEGMENT);
if (!response.IsSuccessStatusCode)
{
_logger?.LogWarning($"The {nameof(IdSvrLiveness)} check failed for server {_idSvrUri}.");
return(LivenessResult.UnHealthy("Discover endpoint is not responding with 200 OK, the current status is {response.StatusCode} and the content { (await response.Content.ReadAsStringAsync())}"));
}
_logger?.LogInformation($"The {nameof(IdSvrLiveness)} check success.");
return(LivenessResult.Healthy());
}
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(IdSvrLiveness)} check fail for IdSvr with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(AzureServiceBusTopicLiveness)} is checking the Azure Topic.");
var topicClient = new TopicClient(_connectionString, _topicName);
var scheduledMessageId = await topicClient.ScheduleMessageAsync(
new Message(Encoding.UTF8.GetBytes(TEST_MESSAGE)),
new DateTimeOffset(DateTime.UtcNow).AddHours(2));
await topicClient.CancelScheduledMessageAsync(scheduledMessageId);
_logger?.LogInformation($"The {nameof(AzureServiceBusTopicLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(AzureServiceBusTopicLiveness)} check fail for {_connectionString} with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
var configuredHosts = _options.ConfiguredHosts.Values;
try
{
_logger?.LogInformation($"{nameof(PingLiveness)} is checking hosts.");
foreach (var(host, timeout) in configuredHosts)
{
using (var ping = new Ping())
{
var pingReply = await ping.SendPingAsync(host, timeout);
if (pingReply.Status != IPStatus.Success)
{
_logger?.LogWarning($"The {nameof(PingLiveness)} check failed for host {host} is failed with status reply:{pingReply.Status}.");
return(LivenessResult.UnHealthy($"Ping check for host {host} is failed with status reply:{pingReply.Status}"));
}
}
}
_logger?.LogInformation($"The {nameof(PingLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(PingLiveness)} check fail with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task default_timeout_option_can_be_override_with_querystring_parameter()
{
var webHostBuilder = new WebHostBuilder()
.UseBeatPulse(options => options.ConfigureTimeout(milliseconds: 100))
.UseStartup <DefaultStartup>()
.ConfigureServices(svc =>
{
svc.AddBeatPulse(setup =>
{
setup.AddLiveness("test", opt =>
{
opt.UsePath("test");
opt.UseLiveness(new ActionLiveness(async ct =>
{
await Task.Delay(200);
return(LivenessResult.Healthy());
}));
});
});
});
var server = new TestServer(webHostBuilder);
var response = await server.CreateClient()
.GetAsync($"{BeatPulseKeys.BEATPULSE_DEFAULT_PATH}?DetailedOutput=true");
response.StatusCode.Should().Be(StatusCodes.Status503ServiceUnavailable);
response = await server.CreateClient()
.GetAsync($"{BeatPulseKeys.BEATPULSE_DEFAULT_PATH}?DetailedOutput=true&Timeout=900");
response.StatusCode.Should().Be(StatusCodes.Status200OK);
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
using (var connection = new SqliteConnection(_connectionString))
{
_logger?.LogInformation($"{nameof(SqliteLiveness)} is checking the Sqlite using the query {_sql}.");
await connection.OpenAsync(cancellationToken);
using (var command = connection.CreateCommand())
{
command.CommandText = _sql;
await command.ExecuteScalarAsync();
}
_logger?.LogInformation($"The {nameof(SqliteLiveness)} check success for {_connectionString}");
return(LivenessResult.Healthy());
}
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(SqliteLiveness)} check fail for {_connectionString} with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure <CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
services.AddCors();
services.AddBeatPulse(setup =>
{
setup.AddLiveness("sample", opt =>
{
opt.UsePath("path");
opt.UseLiveness(new ActionLiveness((_) =>
{
return(Task.FromResult(
LivenessResult.Healthy()));
}));
});
});
}
public void get_valid_prometheus_metrics_content_with_custom_labels()
{
string path = "sql";
string name = "liveness1";
var customLabels = new Dictionary <string, string>()
{
{ "labelA", "valueA" },
{ "labelB", "valueB" },
};
var livenessResult = new LivenessResult(name, path);
livenessResult.StartCounter();
livenessResult.StopCounter("ok", true);
var prometheusMetrics = livenessResult.GetPrometheusMetrics(customLabels);
prometheusMetrics
.Should()
.Contain($"beatpulse_pulse_execution_time_seconds{{labelA=\"valueA\",labelB=\"valueB\",ApplicationName=\"testhost\",Path=\"{path}\",Name=\"{name}\"}}");
prometheusMetrics
.Should()
.Contain($"beatpulse_pulse_ishealthy{{labelA=\"valueA\",labelB=\"valueB\",ApplicationName=\"testhost\",Path=\"{path}\",Name=\"{name}\"}}");
}
private async Task <LivenessResult> ExecuteAuthenticatedUserActions()
{
var(User, Password) = _options.AccountOptions.Account;
if (await _imapConnection.AuthenticateAsync(User, Password))
{
if (_options.FolderOptions.CheckFolder &&
!await _imapConnection.SelectFolder(_options.FolderOptions.FolderName))
{
_logger?.LogWarning($"{nameof(ImapLiveness)} fail connect to server {_options.Host}- SSL Enabled : {_options.ConnectionType} and open folder {_options.FolderOptions.FolderName}.");
return(LivenessResult.UnHealthy($"Folder {_options.FolderOptions.FolderName} check failed."));
}
_logger?.LogInformation($"The {nameof(ImapLiveness)} check success.");
return(LivenessResult.Healthy());
}
else
{
_logger?.LogWarning($"{nameof(ImapLiveness)} fail connect to server {_options.Host}- SSL Enabled : {_options.ConnectionType}.");
return(LivenessResult.UnHealthy($"Login on server {_options.Host} failed with configured user"));
}
}
static string GetLabels(LivenessResult response, IDictionary <string, string> prometheusLabels = null)
{
var labelsBuilder = new StringBuilder();
var ApplicationName = @Assembly.GetEntryAssembly().GetName().Name;
if (prometheusLabels != null)
{
if (prometheusLabels.ContainsKey(nameof(ApplicationName)))
{
ApplicationName = prometheusLabels[nameof(ApplicationName)];
}
foreach (var entry in prometheusLabels)
{
labelsBuilder.Append($"{entry.Key}=\"{entry.Value}\",");
}
}
labelsBuilder.Append($"{nameof(ApplicationName)}=\"{ApplicationName}\",");
labelsBuilder.Append($"{nameof(response.Path)}=\"{response.Path}\",");
labelsBuilder.Append($"{nameof(response.Name)}=\"{response.Name}\",");
labelsBuilder.Length -= 1; // remove latest ,
return($"{{{labelsBuilder.ToString()}}}");
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default(CancellationToken))
{
try
{
var response = await _httpClient.GetAsync("_cluster/health");
response.EnsureSuccessStatusCode();
var json = await response.Content.ReadAsStringAsync();
var results = JsonConvert.DeserializeObject <ClusterHealth>(json);
switch (results.status)
{
case ClusterStatus.Green:
return(LivenessResult.Healthy("Green"));
case ClusterStatus.Yellow:
return(LivenessResult.Healthy("Yellow (no replicas)"));
case ClusterStatus.Red:
return(LivenessResult.UnHealthy("Red"));
default:
return(LivenessResult.UnHealthy("Unknown status - " + results.status));
}
}
catch (Exception ex)
{
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(MySqlLiveness)} is checking the MySql.");
using (var connection = new MySqlConnection(_connectionString))
{
await connection.OpenAsync(cancellationToken);
if (!await connection.PingAsync(cancellationToken))
{
_logger?.LogWarning($"The {nameof(MySqlLiveness)} check fail for {_connectionString}.");
return(LivenessResult.UnHealthy($"The {nameof(MySqlLiveness)} check fail."));
}
_logger?.LogInformation($"The {nameof(MySqlLiveness)} check success for {_connectionString}");
return(LivenessResult.Healthy());
}
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(MySqlLiveness)} check fail for {_connectionString} with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(KafkaLiveness)} is checking the Kafka broker.");
using (var producer = new Producer <Null, string>(_configuration, null, new StringSerializer(Encoding.UTF8)))
{
var result = await producer.ProduceAsync("beatpulse-topic", null, $"Check Kafka healthy on {DateTime.UtcNow}");
if (result.Error.Code != ErrorCode.NoError)
{
_logger?.LogWarning($"The {nameof(KafkaLiveness)} check failed.");
return(LivenessResult.UnHealthy($"ErrorCode {result.Error.Code} with reason ('{result.Error.Reason}')"));
}
_logger?.LogInformation($"The {nameof(KafkaLiveness)} check success.");
return(LivenessResult.Healthy());
}
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(KafkaLiveness)} check fail for Kafka broker with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(AzureEventHubLiveness)} is checking the Azure Event Hub.");
var connectionStringBuilder = new EventHubsConnectionStringBuilder(_connectionString)
{
EntityPath = _eventHubName
};
var eventHubClient = EventHubClient
.CreateFromConnectionString(connectionStringBuilder.ToString());
await eventHubClient.GetRuntimeInformationAsync();
_logger?.LogInformation($"The {nameof(AzureEventHubLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(AzureEventHubLiveness)} check fail for {_connectionString} with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(TcpLiveness)} is checking hosts.");
foreach (var(host, port) in _options.ConfiguredHosts)
{
using (var tcpClient = new TcpClient())
{
await tcpClient.ConnectAsync(host, port);
if (!tcpClient.Connected)
{
_logger?.LogWarning($"The {nameof(TcpLiveness)} check failed for host {host} and port {port}.");
return(LivenessResult.UnHealthy($"Connection to host {host}:{port} failed"));
}
}
}
_logger?.LogInformation($"The {nameof(TcpLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(TcpLiveness)} check fail with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public Task Track(LivenessResult livenessResult)
{
var properties = new Dictionary <string, string>()
{
{ nameof(livenessResult.IsHealthy), livenessResult.IsHealthy.ToString(CultureInfo.InvariantCulture) },
{ nameof(livenessResult.Run), livenessResult.Run.ToString(CultureInfo.InvariantCulture) },
{ nameof(livenessResult.Path), livenessResult.Path },
{ nameof(livenessResult.Name), livenessResult.Name },
{ nameof(Environment.MachineName), Environment.MachineName },
{ nameof(Assembly), Assembly.GetEntryAssembly().GetName().Name }
};
var metrics = new Dictionary <string, double>()
{
{ RESPONSE_TIME_METRIC_NAME, livenessResult.Elapsed.TotalMilliseconds },
{ AVAILABILITY_METRIC_NAME, livenessResult.IsHealthy ? 1 : 0 }
};
var configuration = String.IsNullOrWhiteSpace(_instrumentationKey) ? TelemetryConfiguration.Active : new TelemetryConfiguration(_instrumentationKey);
new TelemetryClient(configuration)
.TrackEvent(EVENT_NAME, properties, metrics);
return(Task.CompletedTask);
}
public Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(RedisLiveness)} is checking the Redis status.");
ConnectionMultiplexer connection;
if (!_connections.TryGetValue(_redisConnectionString, out connection))
{
connection = ConnectionMultiplexer.Connect(_redisConnectionString);
if (!_connections.TryAdd(_redisConnectionString, connection))
{
return(Task.FromResult(
LivenessResult.UnHealthy("Redis connection can't be added into the dictionary.")));
}
}
connection.GetDatabase()
.Ping();
_logger?.LogInformation($"The {nameof(RedisLiveness)} check success.");
return(Task.FromResult(
LivenessResult.Healthy()));
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(RedisLiveness)} check fail with the exception {ex.ToString()}.");
return(Task.FromResult(
LivenessResult.UnHealthy(ex)));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(FtpLiveness)} is checking FTP connections.");
foreach (var item in _options.Hosts.Values)
{
var ftpRequest = CreateFtpWebRequest(item.host, item.createFile, item.credentials);
using (var ftpResponse = (FtpWebResponse)await ftpRequest.GetResponseAsync())
{
if (ftpResponse.StatusCode != FtpStatusCode.PathnameCreated &&
ftpResponse.StatusCode != FtpStatusCode.ClosingData)
{
_logger?.LogWarning($"The {nameof(FtpLiveness)} check fail for ftp host {item.host} with exit code {ftpResponse.StatusCode}.");
LivenessResult.UnHealthy($"Error connecting to ftp host {item.host} with exit code {ftpResponse.StatusCode}");
}
}
}
_logger?.LogInformation($"The {nameof(FtpLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(FtpLiveness)} check fail with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public async Task Track(LivenessResult response)
{
if (response.IsHealthy)
{
await _statusPageClient.SolveIncident();
}
else
{
await _statusPageClient.CreateIncident(response.Message);
}
}
public static string GetPrometheusMetrics(this LivenessResult response, IDictionary <string, string> prometheusLabels = null)
{
var builder = new StringBuilder();
var labels = GetLabels(response, prometheusLabels);
builder.Append($"beatpulse_pulse_execution_time_seconds{labels} { ((double)response.MilliSeconds / 1000)}\n");
builder.Append($"beatpulse_pulse_ishealthy{labels} {Convert.ToInt32(response.IsHealthy)}\n");
return(builder.ToString());
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
var defaultHttpMethod = _options.HttpMethod;
var defaultCodes = _options.ExpectedHttpCodes;
var idx = 0;
try
{
_logger?.LogInformation($"{nameof(UriLiveness)} is checking configured uri's.");
foreach (var item in _options.UrisOptions)
{
var method = item.HttpMethod ?? defaultHttpMethod;
var expectedCodes = item.ExpectedHttpCodes ?? defaultCodes;
if (cancellationToken.IsCancellationRequested)
{
return(LivenessResult.UnHealthy($"Liveness execution is cancelled."));
}
using (var httpClient = new HttpClient())
{
var requestMessage = new HttpRequestMessage(method, item.Uri);
foreach (var header in item.Headers)
{
requestMessage.Headers.Add(header.Name, header.Value);
}
var response = await httpClient.SendAsync(requestMessage);
if (!((int)response.StatusCode >= expectedCodes.Min && (int)response.StatusCode <= expectedCodes.Max))
{
_logger?.LogWarning($"The {nameof(UriLiveness)} check fail for uri {item.Uri}.");
return(LivenessResult.UnHealthy($"Discover endpoint #{idx} is not responding with code in {expectedCodes.Min}...{expectedCodes.Max} range, the current status is {response.StatusCode}."));
}
++idx;
}
}
_logger?.LogDebug($"The {nameof(UriLiveness)} check success.");
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(UriLiveness)} check fail with the exception {ex.ToString()}.");
return(LivenessResult.UnHealthy(ex));
}
}
public Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
throw _throwException();
}
catch (Exception ex)
{
return(Task.FromResult(
LivenessResult.UnHealthy(ex)));
}
}
public Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
var currentValue = currentValueFunc();
if (currentValue.CompareTo(maximunValue) <= 0)
{
return(Task.FromResult(
LivenessResult.Healthy()));
}
return(Task.FromResult(
LivenessResult.UnHealthy($"Maximun={maximunValue}, Current={currentValue}")));
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure <CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
services.AddBeatPulse(setup =>
{
//
//configure a sample ad-hoc liveness
//
setup.AddLiveness("catapi", opt =>
{
opt.UsePath("catapi");
opt.UseLiveness(new ActionLiveness((_) =>
{
if ((DateTime.Now.Second & 1) == 1)
{
return(Task.FromResult(LivenessResult.UnHealthy("liveness is not working")));
}
return(Task.FromResult(LivenessResult.Healthy()));
}));
});
//
//add trackers
//
setup.AddApplicationInsightsTracker();
//setup.AddPrometheusTracker(new Uri("http://localhost:9091"), new Dictionary<string, string>()
//{
// {"MachineName",Environment.MachineName}
//});
//setup.AddStatusPageTracker(opt =>
//{
// opt.PageId = "your-page-id";
// opt.ComponentId = "your-component-id";
// opt.ApiKey = "your-api.key";
// opt.IncidentName = "BeatPulse mark this component as outage";
//});
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
}
public async Task break_the_liveness_execution_if_detailed_output_is_disabled()
{
var check1IsExecuted = false;
var check2IsExecuted = false;
var healthCheck1 = new ActionLiveness(
(cancellationToken) =>
{
check1IsExecuted = true;
return(Task.FromResult(LivenessResult.UnHealthy("custom check1 is not working")));
});
var healthCheck2 = new ActionLiveness(
(cancellationToken) =>
{
check2IsExecuted = false;
return(Task.FromResult(LivenessResult.Healthy()));
});
var webHostBuilder = new WebHostBuilder()
.UseBeatPulse()
.UseStartup <DefaultStartup>()
.ConfigureServices(svc =>
{
svc.AddBeatPulse(context =>
{
context.AddLiveness("check1", opt =>
{
opt.UsePath("check1");
opt.UseLiveness(healthCheck1);
});
context.AddLiveness("check2", opt =>
{
opt.UsePath("check2");
opt.UseLiveness(healthCheck2);
});
});
});
var server = new TestServer(webHostBuilder);
var response = await server.CreateClient()
.GetAsync(BeatPulseKeys.BEATPULSE_DEFAULT_PATH);
response.StatusCode
.Should().Be(StatusCodes.Status503ServiceUnavailable);
check1IsExecuted.Should().BeTrue();
check2IsExecuted.Should().BeFalse();
}
public Task Track(LivenessResult response)
{
const string PROMETHEUS_METRIC_JOB_PATH = "metrics/jobs/beatpulse";
//this tracker use prometheus gateway to send
//liveness results into prometheus with a push model
//for more information about prometheus please read https://prometheus.io/
var prometheusMetrics = response.GetPrometheusMetrics(_prometheusLabels);
var content = new StringContent(prometheusMetrics, Encoding.UTF8, "multipart/form-data");
return(_httpClient.PostAsync(PROMETHEUS_METRIC_JOB_PATH, content));
}
public Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default)
{
try
{
_logger?.LogInformation($"{nameof(SftpLiveness)} is checking SFTP connections.");
foreach (var item in _options.ConfiguredHosts.Values)
{
var connectionInfo = new ConnectionInfo(item.Host, item.UserName, item.AuthenticationMethods.ToArray());
using (var sftpClient = new SftpClient(connectionInfo))
{
sftpClient.Connect();
var connectionSuccess = sftpClient.IsConnected && sftpClient.ConnectionInfo.IsAuthenticated;
if (connectionSuccess)
{
if (item.FileCreationOptions.createFile)
{
using (var stream = new MemoryStream(new byte[] { 0x0 }, 0, 1))
{
sftpClient.UploadFile(stream, item.FileCreationOptions.remoteFilePath);
}
}
}
else
{
_logger?.LogWarning($"The {nameof(SftpLiveness)} check fail for sftp host {item.Host}.");
return(Task.FromResult(
LivenessResult.UnHealthy($"Connection with sftp host {item.Host}:{item.Port} failed")));
}
}
}
_logger?.LogInformation($"The {nameof(SftpLiveness)} check success.");
return(Task.FromResult(
LivenessResult.Healthy()));
}
catch (Exception ex)
{
_logger?.LogWarning($"The {nameof(SftpLiveness)} check fail with the exception {ex.ToString()}.");
return(Task.FromResult(
LivenessResult.UnHealthy(ex)));
}
}
public async Task <LivenessResult> IsHealthy(LivenessExecutionContext context, CancellationToken cancellationToken = default(CancellationToken))
{
try
{
var tokenCredentials = await GetTokenCredentials(_clientID, _clientSecret, _tenantID);
var relayManagementClient = new RelayManagementClient(tokenCredentials);
return(LivenessResult.Healthy());
}
catch (Exception ex)
{
return(LivenessResult.UnHealthy(ex));
}
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.Configure <CookiePolicyOptions>(options =>
{
// This lambda determines whether user consent for non-essential cookies is needed for a given request.
options.CheckConsentNeeded = context => true;
options.MinimumSameSitePolicy = SameSiteMode.None;
});
//
// Configure BeatPulse Authenthication filters
//
//api-key filter
//services.AddSingleton<IBeatPulseAuthenticationFilter>
// (new ApiKeyAuthenticationFilter("api-key-secret"));
//local filter
//services.AddSingleton<IBeatPulseAuthenticationFilter>(
// new LocalAuthenticationFilter());
//custom filter ( defined on this project )
//services.AddSingleton<IBeatPulseAuthenticationFilter>
// (new HeaderValueAuthenticationFilter("header1", "value1"));
services.AddBeatPulse(setup =>
{
//
//create simple ad-hoc liveness
//
setup.AddLiveness("catapi", opt =>
{
opt.UsePath("catapi");
opt.UseLiveness(new ActionLiveness((cancellationToken) =>
{
return(Task.FromResult(
LivenessResult.Healthy()));
}));
});
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
}
