public async Task InvokeAsync(HttpContext context, RequestDelegate next)
{
if (context.Request.Path == "/healthcheck")
{
OverallHealth overallHealth = new OverallHealth {
OverallHealthOk = true,
BuildNumber = FileVersionInfo.GetVersionInfo(Assembly.GetEntryAssembly().Location).FileVersion
};
if (_healthCheckers != null)
{
foreach (var item in _healthCheckers)
{
try
{
ServiceHealth health = await item.IsHealthOk();
overallHealth.OverallHealthOk = overallHealth.OverallHealthOk && health.Dependencies.Min(x => x.HealthOk);
overallHealth.Services.Add(health);
}catch (Exception ex)
{
ServiceHealth failure = new ServiceHealth {
Name = item.GetType().GetFriendlyName()
};
failure.Dependencies.Add(new DependencyHealth {
DependencyName = "IoC Failure", HealthOk = false, Message = ex.Message
});
overallHealth.OverallHealthOk = false;
overallHealth.Services.Add(failure);
}
}
}
string overallHealthJson = Newtonsoft.Json.JsonConvert.SerializeObject(overallHealth);
context.Response.StatusCode = 200;
context.Response.ContentType = "application/json";
await context.Response.WriteAsync(overallHealthJson);
}
else
{
await next.Invoke(context);
}
}
public async Task <IActionResult> Get()
{
if (!this.Request.Headers.ContainsKey(HealthCheckHeaderName))
{
_logger.Warning("Request didn't contain health check header");
return(StatusCode(StatusCodes.Status403Forbidden));
}
else
{
string healthCheckHeaderValue = this.Request.Headers[HealthCheckHeaderName];
if (healthCheckHeaderValue != _options.ApiKey)
{
_logger.Warning("Health Check Request didn't contain correct health check header value '{healthCheckHeaderValue}'", healthCheckHeaderValue);
return(StatusCode(StatusCodes.Status403Forbidden));
}
}
OverallHealth overallHealth = new OverallHealth();
overallHealth.Services.Add(TryResolveService(typeof(ICalculationSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IDatasetSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IDatasetDefinitionSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IProviderSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IDatasetRelationshipsSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IScenarioSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(ITestScenarioSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(ITestResultsSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(ITestScenarioResultsService)));
overallHealth.Services.Add(TryResolveService(typeof(ICalculationProviderResultsSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(ISpecificationSearchService)));
overallHealth.Services.Add(TryResolveService(typeof(IUserProfileService)));
await AddAdditionalServiceHealths(overallHealth.Services);
overallHealth.OverallHealthOk = overallHealth.Services.Min(x => x.HealthOk);
return(new JsonResult(overallHealth));
}
