/// <summary>
/// Expected return error code:
/// 200 No error
/// 500 server error
/// </summary>
internal async Task <ContainersPruneResponse> PruneContainersAsync(
ContainersPruneConfig pruneConfig,
TimeSpan timeout)
{
var requestPath = "containers/prune";
var queryString = QueryParameterHelper.BuildQueryString(pruneConfig);
var response = await this.client.MakeRequestAsync(
HttpMethod.Post,
requestPath,
queryString,
null,
timeout).ConfigureAwait(false);
if (response.StatusCode != HttpStatusCode.OK)
{
throw new ContainerApiException(response.StatusCode, response.Body);
}
return(ContainerServiceClient.JsonSerializer.DeserializeObject <ContainersPruneResponse>(response.Body));
}
internal async Task PruneContainers()
{
if (HostingConfig.Config.ContainerCleanupScanIntervalInMinutes <= 0)
{
HostingTrace.Source.WriteInfo(
TraceType,
"Container pruning is disabled as ContainerCleanupScanIntervalInMinutes is set to {0}.",
HostingConfig.Config.ContainerCleanupScanIntervalInMinutes);
return;
}
var pruneInterval = TimeSpan.FromMinutes(HostingConfig.Config.ContainerCleanupScanIntervalInMinutes);
var untilFilterVal = $"{HostingConfig.Config.DeadContainerCleanupUntilInMinutes}m";
var labelFilterVal = $"{ConfigHelper.PlatformLabelKeyName}={ConfigHelper.PlatformLabelKeyValue}";
var pruneConfig = new ContainersPruneConfig()
{
Filters = new Dictionary <string, IList <string> >()
{
{ "until", new List <string> ()
{
untilFilterVal
} },
{ "label", new List <string> ()
{
labelFilterVal
} }
}
};
while (true)
{
try
{
await Task.Delay(pruneInterval);
var pruneResp = await this.client.ContainerOperation.PruneContainersAsync(
pruneConfig,
HostingConfig.Config.DockerRequestTimeout);
HostingTrace.Source.WriteInfo(
TraceType,
"PruneContainers finished successfully. ContainersDeletedCount={0}, SpaceReclaimed={1} bytes.",
pruneResp.ContainersDeleted == null ? 0 : pruneResp.ContainersDeleted.Count,
pruneResp.SpaceReclaimed);
}
catch (ContainerApiException ex)
{
HostingTrace.Source.WriteWarning(
TraceType,
"PruneContainers failed with StatusCode={0} with ResponseBody={1}.",
ex.StatusCode,
ex.ResponseBody);
}
catch (Exception ex)
{
HostingTrace.Source.WriteWarning(
TraceType,
"PruneContainers failed with Exception={0}.",
ex);
}
}
}
internal static string BuildQueryString(ContainersPruneConfig pruneConfig)
{
return(BuildFilterParam(pruneConfig.Filters));
}
