refactor(env): remove legacy K_SERVICE references

Author: francescobianco

docs/env/README.md

@@ -26,15 +26,6 @@ cache backend, and any platform-specific notes.
 | `MCP_CACHE_PORT` | `11211` | Memcached port                                                                           |
 | `MCP_CACHE_URL` | _(none)_ | Redis connection URL (used when `MCP_CACHE_BACKEND=redis`)                               |
 
-### Legacy variables (GCP Cloud Run — deprecated)
-
-These are still read by the current codebase for backward compatibility with the
-existing GCP deployment. Prefer the explicit variables above for new deployments.
-
-| Variable | Description |
-|---|---|
-| `K_SERVICE` | Cloud Run service name — auto-injects `MCP_BASE_URL`, `MCP_OPENAPI_ENV`, Memcached IPs |
-
 ---
 
 ## Why storage matters

docs/env/gcp.md

@@ -43,20 +43,6 @@ MCP_CACHE_PORT=11211
 
 ---
 
-## Legacy variables (backward compatibility)
-
-If you are using a Cloud Run deployment without migrating to the
-explicit variables above, the following variables are still read:
-
-| Variable | Effect |
-|---|---|
-| `K_SERVICE` | Auto-set by Cloud Run. Derives `MCP_BASE_URL` (`K_SERVICE.replace("-",".")`) and `MCP_OPENAPI_ENV` (from service name prefix), and selects the Memcached VPC IP. |
-
-> **Migration path:** set `MCP_BASE_URL`, `MCP_OPENAPI_ENV`, `MCP_CACHE_HOST` explicitly
-> and stop relying on `K_SERVICE`. This makes the server portable to any platform.
-
----
-
 ## Cloud Run deployment
 
 ### Cloud Run service YAML

docs/testing.md

@@ -126,8 +126,8 @@ MCP_URL=https://abcd1234.ngrok-free.app SANDBOX=1 make test-openai-sandbox
 | Data | real | simulated |
 | Token variable | `OPENAPI_TOKEN` | `OPENAPI_SANDBOX_TOKEN` |
 
-The MCP server switches between production and sandbox based on the `K_SERVICE` environment
-variable (handled automatically by the test runners).
+The MCP server switches between production and sandbox based on the `MCP_OPENAPI_ENV`
+environment variable (handled automatically by the test runners).
 
 ---
 

src/openapi_mcp_sdk/memory_store.py

@@ -15,8 +15,6 @@
 
 callback_results = {}
 
-MCP_STORAGE_BUCKET = os.getenv("MCP_STORAGE_BUCKET", "mcp-openapi-storage")
-
 MCP_ENV = os.getenv("MCP_ENV", "production").strip().lower()
 if MCP_ENV not in {"dev", "staging", "production"}:
     logger.warning("Invalid MCP_ENV=%r, defaulting to 'production'", MCP_ENV)
@@ -25,14 +23,6 @@
 MCP_OPENAPI_ENV = os.getenv("MCP_OPENAPI_ENV", "").strip().lower()
 if MCP_OPENAPI_ENV == "sandbox":
     MCP_OPENAPI_ENV = "test"
-if not MCP_OPENAPI_ENV and K_SERVICE and K_SERVICE != "mcp-openapi-com":
-    candidate = K_SERVICE.split("-")[0].strip().lower()
-    if candidate == "alpha":
-        candidate = "dev"
-    if candidate == "sandbox":
-        candidate = "test"
-    if candidate in {"dev", "test"}:
-        MCP_OPENAPI_ENV = candidate
 if MCP_OPENAPI_ENV not in {"", "dev", "test"}:
     logger.warning("Invalid MCP_OPENAPI_ENV=%r, defaulting to production", MCP_OPENAPI_ENV)
     MCP_OPENAPI_ENV = ""

tests/integration/run-vs-claude.sh

@@ -14,10 +14,10 @@ SERVER_PID=""
 SANDBOX="${SANDBOX:-0}"
 if [ "$SANDBOX" = "1" ]; then
     TOKEN="${OPENAPI_SANDBOX_TOKEN:-}"
-    K_SERVICE_VALUE="test-openapi-mcp-server"
+    MCP_OPENAPI_ENV_VALUE="test"
 else
     TOKEN="${OPENAPI_TOKEN:-}"
-    K_SERVICE_VALUE=""
+    MCP_OPENAPI_ENV_VALUE=""
 fi
 
 cleanup() {
@@ -68,7 +68,7 @@ EOF
 
 echo "Starting MCP server..."
 cd "$ROOT_DIR"
-K_SERVICE="$K_SERVICE_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
+MCP_OPENAPI_ENV="$MCP_OPENAPI_ENV_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
     --host 0.0.0.0 --port 8080 --log-level warning &
 SERVER_PID=$!
 

tests/integration/run-vs-codex.sh

@@ -15,10 +15,10 @@ SERVER_PID=""
 SANDBOX="${SANDBOX:-0}"
 if [ "$SANDBOX" = "1" ]; then
     TOKEN="${OPENAPI_SANDBOX_TOKEN:-}"
-    K_SERVICE_VALUE="test-openapi-mcp-server"
+    MCP_OPENAPI_ENV_VALUE="test"
 else
     TOKEN="${OPENAPI_TOKEN:-}"
-    K_SERVICE_VALUE=""
+    MCP_OPENAPI_ENV_VALUE=""
 fi
 
 cleanup() {
@@ -66,7 +66,7 @@ codex mcp add "$MCP_SERVER_NAME" \
 
 echo "Starting MCP server..."
 cd "$ROOT_DIR"
-K_SERVICE="$K_SERVICE_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
+MCP_OPENAPI_ENV="$MCP_OPENAPI_ENV_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
     --host 0.0.0.0 --port 8080 --log-level warning &
 SERVER_PID=$!
 

tests/integration/run-vs-openai.sh

@@ -13,10 +13,10 @@ SERVER_PID=""
 SANDBOX="${SANDBOX:-0}"
 if [ "$SANDBOX" = "1" ]; then
     TOKEN="${OPENAPI_SANDBOX_TOKEN:-}"
-    K_SERVICE_VALUE="test-openapi-mcp-server"
+    MCP_OPENAPI_ENV_VALUE="test"
 else
     TOKEN="${OPENAPI_TOKEN:-}"
-    K_SERVICE_VALUE=""
+    MCP_OPENAPI_ENV_VALUE=""
 fi
 
 # MCP_URL: the URL OpenAI will use to reach the MCP server.
@@ -64,7 +64,7 @@ echo "MCP_URL: $MCP_URL"
 
 echo "Starting MCP server..."
 cd "$ROOT_DIR"
-K_SERVICE="$K_SERVICE_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
+MCP_OPENAPI_ENV="$MCP_OPENAPI_ENV_VALUE" PYTHONPATH=src uv run uvicorn openapi_mcp_sdk.main:app \
     --host 0.0.0.0 --port 8080 --log-level warning &
 SERVER_PID=$!