[Code Update - Chapter 09] Code update for MP Telemetry 2.1

code/chapter09/docker-compose.yml

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+version: '3.8'
+
+services:
+  grafana:
+    image: grafana/grafana:latest
+    container_name: grafana
+    ports:
+      - "13000:3000"
+    environment:
+      - GF_SECURITY_ADMIN_PASSWORD=admin
+    volumes:
+      - grafana-storage:/var/lib/grafana
+    depends_on:
+      - prometheus
+      - loki
+      - tempo
+    networks:
+      - observability
+
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: prometheus
+    ports:
+      - "19090:9090"
+    volumes:
+      - ./prometheus.yml:/etc/prometheus/prometheus.yml
+      - prometheus-storage:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+    networks:
+      - observability
+
+  loki:
+    image: grafana/loki:latest
+    container_name: loki
+    ports:
+      - "13100:3100"
+    volumes:
+      - loki-storage:/loki
+    command: -config.file=/etc/loki/local-config.yml
+    networks:
+      - observability
+
+  tempo:
+    image: grafana/tempo:latest
+    container_name: tempo
+    ports:
+      - "14317:4317"
+      - "14318:4318"
+    volumes:
+      - tempo-storage:/var/tempo
+    command: [ "-config.file=/etc/tempo/local-config.yml" ]
+    networks:
+      - observability
+
+  otel-collector:
+    image: otel/opentelemetry-collector-contrib:latest
+    container_name: otel-collector
+    ports:
+      - "24317:4317"
+      - "24318:4318"
+      - "19411:9411"
+    volumes:
+      - ./otel-collector-config.yml:/etc/otel-collector-config.yml
+    command: [ "--config=/etc/otel-collector-config.yml" ]
+    depends_on:
+      - loki
+      - prometheus
+      - tempo
+    networks:
+      - observability
+
+volumes:
+  grafana-storage:
+  prometheus-storage:
+  loki-storage:
+  tempo-storage:
+
+networks:
+  observability:
+    driver: bridge

code/chapter09/otel-collector-config.yml

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+receivers:
+  otlp:
+    protocols:
+      grpc:
+        endpoint: 0.0.0.0:4317
+      http:
+        endpoint: 0.0.0.0:4318
+
+processors:
+  batch:
+    timeout: 10s
+    send_batch_size: 1024
+
+exporters:
+  logging:
+    loglevel: debug
+
+  otlp:
+    endpoint: tempo:4317
+    tls:
+      insecure: true
+
+  loki:
+    endpoint: http://loki:3100/loki/api/v1/push
+
+  prometheus:
+    endpoint: "0.0.0.0:8889"
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [otlp, logging]
+
+    metrics:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [prometheus, logging]
+
+    logs:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [loki, logging]