Make Dynamo source install container-agnostic (vLLM, SGLang, etc.)

Auto-detect container type at runtime: if /sgl-workspace exists (SGLang),
use original install path unchanged; otherwise use portable /tmp build path
with conditional dependency installation for non-SGLang containers.

Author: Albert Cheng (Engrg-Hardware 1)

src/srtctl/core/schema.py

@@ -719,8 +719,8 @@ def get_install_commands(self) -> str:
         git_ref = self.hash if self.hash else "HEAD"
         checkout_cmd = f"git checkout {self.hash}" if self.hash else ""
 
-        return (
-            f"echo 'Installing dynamo from source ({git_ref})...' && "
+        # Original SGLang container path, UNCHANGED
+        sglang = (
             "apt-get update -qq && apt-get install -y -qq libclang-dev > /dev/null 2>&1 && "
             "cd /sgl-workspace/ && "
             "git clone https://github.com/ai-dynamo/dynamo.git && "
@@ -736,6 +736,34 @@ def get_install_commands(self) -> str:
             f"echo 'Dynamo installed from source ({git_ref})'"
         )
 
+        # Portable path for non-SGLang containers (vLLM, etc.)
+        portable = (
+            "if ! command -v cargo &> /dev/null || ! command -v maturin &> /dev/null; then "
+            "apt-get update -qq && apt-get install -y -qq git curl libclang-dev protobuf-compiler > /dev/null 2>&1 && "
+            "if ! command -v cargo &> /dev/null; then "
+            "curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && source $HOME/.cargo/env; fi && "
+            "if ! command -v maturin &> /dev/null; then "
+            "pip install --break-system-packages maturin; fi; fi && "
+            "ORIG_DIR=$(pwd) && rm -rf /tmp/dynamo_build && mkdir -p /tmp/dynamo_build && cd /tmp/dynamo_build && "
+            "git clone https://github.com/ai-dynamo/dynamo.git && "
+            "cd dynamo && "
+            f"{checkout_cmd + ' && ' if checkout_cmd else ''}"
+            "cd lib/bindings/python/ && "
+            'export RUSTFLAGS="${RUSTFLAGS:-} -C target-cpu=native --cfg tokio_unstable" && '
+            "rm -f /tmp/ai_dynamo_runtime*.whl && "
+            "maturin build -o /tmp && "
+            "pip install --break-system-packages /tmp/ai_dynamo_runtime*.whl --force-reinstall && "
+            "cd /tmp/dynamo_build/dynamo/ && "
+            "pip install --break-system-packages -e . && "
+            "cd $ORIG_DIR && "
+            f"echo 'Dynamo installed from source ({git_ref})'"
+        )
+
+        return (
+            f"echo 'Installing dynamo from source ({git_ref})...' && "
+            f"if [ -d /sgl-workspace ]; then {sglang}; else {portable}; fi"
+        )
+
     Schema: ClassVar[type[Schema]] = Schema
 
 

tests/test_configs.py

@@ -127,7 +127,11 @@ def test_hash_install_command(self):
         assert "git clone" in cmd
         assert "git checkout abc123" in cmd
         assert "maturin build" in cmd
-        assert "pip install -e" in cmd
+        assert "if [ -d /sgl-workspace ]" in cmd
+        assert "/tmp/dynamo_build" in cmd
+        assert "protobuf-compiler" in cmd
+        assert "if ! command -v cargo" in cmd
+        assert "if ! command -v maturin" in cmd
 
     def test_top_of_tree_install_command(self):
         """Top-of-tree config generates source install without checkout."""
@@ -140,6 +144,10 @@ def test_top_of_tree_install_command(self):
         assert "git clone" in cmd
         assert "git checkout" not in cmd
         assert "maturin build" in cmd
+        assert "if [ -d /sgl-workspace ]" in cmd
+        assert "/tmp/dynamo_build" in cmd
+        assert "--break-system-packages" in cmd
+        assert "--force-reinstall" in cmd
 
     def test_hash_and_top_of_tree_not_allowed(self):
         """Cannot specify both hash and top_of_tree."""