standardize namespace environment variable to DYN_NAMESPACE

Author: qimcis

components/backends/sglang/deploy/disagg_planner.yaml

@@ -11,7 +11,7 @@ spec:
   envs:
     - name: DYNAMO_SERVICE_CONFIG
       value: '{"Prometheus":{"global":{"scrape_interval":"5s"},"scrape_configs":[{"job_name":"prometheus","static_configs":[{"targets":["localhost:9090"]}]},{"job_name":"frontend","static_configs":[{"targets":["sglang-disagg-planner-frontend:8000"]}]}]}}'
-    - name: DYNAMO_NAMESPACE
+    - name: DYN_NAMESPACE
       value: "dynamo"
   services:
     Frontend:

components/backends/vllm/deploy/disagg_planner.yaml

@@ -13,7 +13,7 @@ spec:
       value: '{"Prometheus":{"global":{"scrape_interval":"5s"},"scrape_configs":[{"job_name":"prometheus","static_configs":[{"targets":["localhost:9090"]}]},{"job_name":"frontend","static_configs":[{"targets":["vllm-disagg-planner-frontend:8000"]}]}]}}'
     - name: DYNAMO_PORT
       value: "8000"
-    - name: DYNAMO_NAMESPACE
+    - name: DYN_NAMESPACE
       value: "vllm-disagg-planner"
   services:
     Frontend:

components/backends/vllm/src/dynamo/vllm/args.py

@@ -113,7 +113,7 @@ def parse_args() -> Config:
         # This becomes an `Option` on the Rust side
         config.served_model_name = None
 
-    namespace = os.environ.get("DYNAMO_NAMESPACE", "dynamo")
+    namespace = os.environ.get("DYN_NAMESPACE", "dynamo")
 
     if args.is_prefill_worker:
         args.endpoint = f"dyn://{namespace}.prefill.generate"

components/planner/src/dynamo/planner/defaults.py

@@ -71,7 +71,7 @@ def _get_default_prometheus_endpoint(port: str, namespace: str):
 
 class SLAPlannerDefaults(BasePlannerDefaults):
     port = os.environ.get("DYNAMO_PORT", "8000")
-    namespace = os.environ.get("DYNAMO_NAMESPACE", "vllm-disagg-planner")
+    namespace = os.environ.get("DYN_NAMESPACE", "vllm-disagg-planner")
     prometheus_endpoint = _get_default_prometheus_endpoint(port, namespace)
     profile_results_dir = "profiling_results"
     isl = 3000  # in number of tokens