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alloy:
service:
ports:
otlp-grpc:
enabled: true
port: 4317
targetPort: 4317
protocol: TCP
otlp-http:
enabled: true
port: 4318
targetPort: 4318
protocol: TCP
configMap:
content: |
discovery.kubernetes "pods" {
role = "pod"
}
discovery.relabel "pods" {
targets = discovery.kubernetes.pods.targets
rule {
source_labels = ["__meta_kubernetes_namespace"]
target_label = "namespace"
}
rule {
source_labels = ["__meta_kubernetes_pod_name"]
target_label = "pod"
}
rule {
source_labels = ["__meta_kubernetes_pod_container_name"]
target_label = "container"
}
rule {
source_labels = ["__meta_kubernetes_pod_label_app"]
target_label = "app"
}
}
loki.source.kubernetes "pods" {
targets = discovery.relabel.pods.output
forward_to = [loki.write.default.receiver]
}
loki.write "default" {
endpoint {
url = "http://loki.monitoring.svc.cluster.local:3100/loki/api/v1/push"
}
}
// ========================================
// TRACES COLLECTION
// ========================================
// OTLP receiver for traces via gRPC and HTTP
// Accepts traces from applications instrumented with OpenTelemetry
otelcol.receiver.otlp "default" {
// Accept OTLP over gRPC on port 4317 (standard OTLP port)
grpc {
endpoint = "0.0.0.0:4317"
}
// Accept OTLP over HTTP on port 4318 (standard OTLP HTTP port)
http {
endpoint = "0.0.0.0:4318"
}
output {
traces = [otelcol.processor.batch.default.input]
}
}
// Batch processor for efficient trace forwarding to Tempo
// Reduces network calls by batching spans before sending
otelcol.processor.batch "default" {
// Send batch every 5 seconds
timeout = "5s"
// Or when 100 spans have accumulated
send_batch_size = 100
// Maximum batch size as safety limit
send_batch_max_size = 200
output {
traces = [otelcol.exporter.otlp.tempo.input]
}
}
// OTLP exporter to send traces to Tempo
otelcol.exporter.otlp "tempo" {
client {
endpoint = "tempo.monitoring.svc.cluster.local:4317"
// Tempo doesn't use TLS for internal cluster communication
tls {
insecure = true
}
// Enable compression for efficiency
compression = "gzip"
}
}
|
