143 lines
3.1 KiB
YAML
143 lines
3.1 KiB
YAML
apiVersion: v1
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kind: ConfigMap
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metadata:
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name: alloy-config
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namespace: observability
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data:
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config.alloy: |
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// Logging configuration
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logging {
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level = "info"
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format = "logfmt"
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}
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// Discover Kubernetes pods for log collection
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discovery.kubernetes "pods" {
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role = "pod"
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}
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// Discover Kubernetes nodes
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discovery.kubernetes "nodes" {
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role = "node"
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}
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// Relabel pods for log collection
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discovery.relabel "pod_logs" {
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targets = discovery.kubernetes.pods.targets
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// Only scrape pods with logs
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rule {
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source_labels = ["__meta_kubernetes_pod_container_name"]
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action = "keep"
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regex = ".+"
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}
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// Set the log path
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rule {
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source_labels = ["__meta_kubernetes_pod_uid", "__meta_kubernetes_pod_container_name"]
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target_label = "__path__"
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separator = "/"
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replacement = "/var/log/pods/*$1/*.log"
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}
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// Set namespace label
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rule {
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source_labels = ["__meta_kubernetes_namespace"]
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target_label = "namespace"
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}
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// Set pod name label
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rule {
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source_labels = ["__meta_kubernetes_pod_name"]
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target_label = "pod"
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}
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// Set container name label
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rule {
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source_labels = ["__meta_kubernetes_pod_container_name"]
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target_label = "container"
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}
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// Set node name label
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rule {
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source_labels = ["__meta_kubernetes_pod_node_name"]
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target_label = "node"
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}
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// Copy all pod labels
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rule {
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action = "labelmap"
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regex = "__meta_kubernetes_pod_label_(.+)"
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}
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}
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// Read logs from discovered pods
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loki.source.kubernetes "pod_logs" {
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targets = discovery.relabel.pod_logs.output
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forward_to = [loki.process.pod_logs.receiver]
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}
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// Process and enrich logs
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loki.process "pod_logs" {
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forward_to = [loki.write.local.receiver]
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// Parse JSON logs
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stage.json {
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expressions = {
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level = "level",
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message = "message",
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timestamp = "timestamp",
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}
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}
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// Extract log level
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stage.labels {
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values = {
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level = "",
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}
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}
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// Add cluster label
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stage.static_labels {
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values = {
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cluster = "betelgeuse-k8s",
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}
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}
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}
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// Write logs to Loki
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loki.write "local" {
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endpoint {
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url = "http://loki.observability.svc.cluster.local:3100/loki/api/v1/push"
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}
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}
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// OpenTelemetry receiver for traces
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otelcol.receiver.otlp "default" {
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grpc {
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endpoint = "0.0.0.0:4317"
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}
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http {
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endpoint = "0.0.0.0:4318"
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}
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output {
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traces = [otelcol.exporter.otlp.tempo.input]
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}
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}
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// Export traces to Tempo
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otelcol.exporter.otlp "tempo" {
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client {
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endpoint = "tempo.observability.svc.cluster.local:4317"
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tls {
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insecure = true
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}
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}
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}
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// Scrape local metrics (Alloy's own metrics)
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// Prometheus will scrape these via service discovery
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prometheus.exporter.self "alloy" {
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} |