add docker-compose file for honeycomb tracing (#377)

demos/currency_exchange_ollama/docker-compose_honeycomb.yaml

@@ -0,0 +1,26 @@
+services:
+  chatbot_ui:
+    build:
+      context: ../shared/chatbot_ui
+    ports:
+      - "18080:8080"
+    environment:
+      # this is only because we are running the sample app in the same docker container environemtn as archgw
+      - CHAT_COMPLETION_ENDPOINT=http://host.docker.internal:10000/v1
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    volumes:
+      - ./arch_config.yaml:/app/arch_config.yaml
+
+  otel-collector:
+    build:
+      context: ../shared/honeycomb/
+    ports:
+      - "4317:4317"
+      - "4318:4318"
+    volumes:
+      - ../shared/honeycomb/otel-collector-config.yaml:/etc/otel-collector-config.yaml
+    env_file:
+      - .env
+    environment:
+      - HONEYCOMB_API_KEY=${HONEYCOMB_API_KEY:?error}