feat: add optional otel collector docker sidecar (#1190)

compose.tracing.yaml

@@ -0,0 +1,18 @@
+services:
+  letta_server:
+    environment:
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4317
+
+  otel-collector:
+    image: otel/opentelemetry-collector-contrib:0.92.0
+    command: ["--config=/etc/otel-collector-config.yaml"]
+    volumes:
+      - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml
+    environment:
+      - CLICKHOUSE_ENDPOINT=${CLICKHOUSE_ENDPOINT}
+      - CLICKHOUSE_DATABASE=${CLICKHOUSE_DATABASE}
+      - CLICKHOUSE_USER=${CLICKHOUSE_USER}
+      - CLICKHOUSE_PASSWORD=${CLICKHOUSE_PASSWORD}
+    ports:
+      - "4317:4317"
+      - "4318:4318"

otel-collector-config.yaml

@@ -0,0 +1,32 @@
+receivers:
+  otlp:
+    protocols:
+      grpc:
+        endpoint: 0.0.0.0:4317
+      http:
+        endpoint: 0.0.0.0:4318
+
+processors:
+  batch:
+    timeout: 1s
+    send_batch_size: 1024
+
+exporters:
+  clickhouse:
+    endpoint: ${CLICKHOUSE_ENDPOINT}
+    username: ${CLICKHOUSE_USER}
+    password: ${CLICKHOUSE_PASSWORD}
+    database: ${CLICKHOUSE_DATABASE}
+    timeout: 10s
+    retry_on_failure:
+      enabled: true
+      initial_interval: 5s
+      max_interval: 30s
+      max_elapsed_time: 300s
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [clickhouse]