private ConsumerGroupHostSettings GetConsumerGroupHostSettings(ILog log, AirlockEnvironmentVariables environmentVariables)
{
var consumerGroupPrefix = environmentVariables.GetValue("CONSUMER_GROUP_PREFIX", $"{GetType().Name}@{Dns.GetHostName()}");
var consumerGroupId = $"{consumerGroupPrefix}_{ServiceName}";
var kafkaBootstrapEndpoints = environmentVariables.GetValue("KAFKA_BOOTSTRAP_ENDPOINTS", defaultKafkaBootstrapEndpoints);
var autoResetOffsetPolicy = environmentVariables.GetEnumValue("KAFKA_AUTO_OFFSET_RESET", AutoResetOffsetPolicy.Latest);
var consumerGroupHostSettings = new ConsumerGroupHostSettings(kafkaBootstrapEndpoints, consumerGroupId, ProcessorHostSettings, autoResetOffsetPolicy);
log.Info($"ConsumerGroupHostSettings: {consumerGroupHostSettings.ToPrettyJson()}");
return(consumerGroupHostSettings);
}
public ConsumerGroupHost Initialize(ILog log, AirlockEnvironmentVariables environmentVariables)
{
var environment = environmentVariables.GetValue("VOSTOK_ENV", "dev");
var metricRoutingKeyPrefix = RoutingKey.CreatePrefix("vostok", environment, ServiceName);
var graphiteUri = GetGraphiteUri(log, environmentVariables);
var graphiteSinkConfig = new GraphiteSinkConfig
{
GraphiteHost = graphiteUri.Host,
GraphitePort = graphiteUri.Port
};
log.Info($"GraphiteSinkConfig: {graphiteSinkConfig.ToPrettyJson()}");
graphiteSink = new GraphiteSink(graphiteSinkConfig, log);
var rootMetricScope = new RootMetricScope(new MetricConfiguration
{
Reporter = new GraphiteMetricReporter(graphiteSink, metricRoutingKeyPrefix, log)
});
var consumerGroupHostSettings = GetConsumerGroupHostSettings(log, environmentVariables);
consumerMetrics = new ConsumerMetrics(consumerGroupHostSettings.FlushMetricsInterval, rootMetricScope);
DoInitialize(log, rootMetricScope, environmentVariables, out var routingKeyFilter, out var processorProvider);
return(new ConsumerGroupHost(consumerGroupHostSettings, log, consumerMetrics, routingKeyFilter, processorProvider));
}
protected static Uri GetGraphiteUri(ILog log, AirlockEnvironmentVariables environmentVariables)
{
var graphiteEndpoint = environmentVariables.GetValue("GRAPHITE_ENDPOINT", defaultGraphiteEndpoint);
var graphiteUri = new Uri($"tcp://{graphiteEndpoint}");
log.Info($"GraphiteUri: {graphiteUri}");
return(graphiteUri);
}
