Set OTEL_SERVICE_NAME at initialization (#112)

This PR sets `OTEL_SERVICE_NAME` at init-time, so we can leverage this
across various platform.

Author: krisztianfekete

internal/cli/agent/frameworks/adk/python/templates/Dockerfile.tmpl

@@ -14,5 +14,7 @@ COPY .python-version .python-version
 
 RUN uv sync
 
+ENV OTEL_SERVICE_NAME={{.Name}}
+
 CMD ["{{.Name}}"]
 

internal/cli/agent/frameworks/adk/python/templates/agent/agent.py.tmpl

@@ -1,4 +1,5 @@
 import random
+import os
 
 from google.adk import Agent
 from google.adk.tools.tool_context import ToolContext
@@ -8,6 +9,9 @@ from google.adk.models.lite_llm import LiteLlm
 from .mcp_tools import get_mcp_tools
 
 # Initialize OpenTelemetry
+# Set service name from environment variable for OpenTelemetry
+os.environ.setdefault('OTEL_SERVICE_NAME', '{{.Name}}')
+
 from google.adk.telemetry.setup import maybe_set_otel_providers
 maybe_set_otel_providers()
 

internal/cli/agent/frameworks/adk/python/templates/docker-compose.yaml.tmpl

@@ -28,6 +28,7 @@ services:
       - KAGENT_NAME=placeholder
       - KAGENT_NAMESPACE=placeholder
       - AGENT_NAME={{.Name}}
+      - OTEL_SERVICE_NAME={{.Name}}
       - OTEL_EXPORTER_OTLP_TRACES_ENDPOINT=${OTEL_EXPORTER_OTLP_TRACES_ENDPOINT}
       - MODEL_PROVIDER={{.ModelProvider}}
       - MODEL_NAME={{.ModelName}}

internal/cli/mcp/frameworks/python/templates/Dockerfile.tmpl

@@ -65,6 +65,7 @@ HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
 # Set environment variables
 ENV PYTHONPATH=/app
 ENV PYTHONUNBUFFERED=1
+ENV OTEL_SERVICE_NAME={{.Name}}
 
 # Default command
-CMD ["python", "src/main.py"] 
+CMD ["python", "src/main.py"]