/// <summary>
/// Expected return error code:
/// 200 no error
/// 400 bad parameter
/// 500 server error
/// </summary>
internal async Task <Stream> MonitorEventAsync(ContainerEventsConfig eventsConfig)
{
var requestPath = "events";
var queryString = QueryParameterHelper.BuildQueryString(eventsConfig);
var response = await this.client.MakeRequestForHttpResponseAsync(
HttpMethod.Get,
requestPath,
queryString,
null,
null,
Timeout.InfiniteTimeSpan).ConfigureAwait(false);
if (response.StatusCode != HttpStatusCode.OK)
{
var statusCode = response.StatusCode;
response.Dispose();
throw new ContainerApiException(statusCode, null);
}
try
{
return(await response.Content.ReadAsStreamAsync().ConfigureAwait(false));
}
catch (Exception)
{
response.Dispose();
throw;
}
}
internal ContainerEventManager(ContainerActivatorService activator)
{
this.activatorService = activator;
var eventTypeList = new List <string>()
{
"stop", "die"
};
if (HostingConfig.Config.EnableDockerHealthCheckIntegration)
{
eventTypeList.Add("health_status");
}
this.eventsConfig = new ContainerEventsConfig
{
Filters = new Dictionary <string, IList <string> >()
{
{ "type", new List <string> ()
{
"container"
} },
{ "event", eventTypeList }
}
};
this.maxContinuousFailureCount = HostingConfig.Config.ContainerEventManagerMaxContinuousFailure;
this.retryDelay = TimeSpan.FromSeconds(HostingConfig.Config.ContainerEventManagerFailureBackoffInSec);
this.continuousFailureCount = 0;
}
internal static string BuildQueryString(ContainerEventsConfig eventsConfig)
{
// TODO: use string.join.
var sb = new StringBuilder();
if (!string.IsNullOrEmpty(eventsConfig.Since))
{
sb.Append($"since={eventsConfig.Since}");
}
if (!string.IsNullOrEmpty(eventsConfig.Until))
{
if (sb.Length > 0)
{
sb.Append("&");
}
sb.Append($"until={eventsConfig.Until}");
}
if (eventsConfig.Filters != null && eventsConfig.Filters.Count > 0)
{
if (sb.Length > 0)
{
sb.Append("&");
}
var filterJsonStr = ContainerServiceClient.JsonSerializer.SerializeObject(eventsConfig.Filters);
filterJsonStr = Uri.EscapeDataString(filterJsonStr);
sb.Append($"filters={filterJsonStr}");
}
return(sb.ToString());
}
