Add Python 3.13 runtime support and fix Docker Lambda execution

- Add python3.13 to supported Lambda runtimes
- Update Dockerfile.release to install Python and create symlinks for
  python3.11/3.12/3.13 so Lambda functions can execute
- Enables running Python Lambda functions inside the Docker container

Author: Edd

Dockerfile.release

@@ -16,11 +16,17 @@ RUN cargo build --release
 # Runtime image
 FROM debian:bookworm-slim
 
+# Install Python and other dependencies for Lambda execution
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ca-certificates \
     curl \
     python3 \
-    && rm -rf /var/lib/apt/lists/*
+    python3-pip \
+    python3-venv \
+    && rm -rf /var/lib/apt/lists/* \
+    && ln -sf /usr/bin/python3 /usr/bin/python3.11 \
+    && ln -sf /usr/bin/python3 /usr/bin/python3.12 \
+    && ln -sf /usr/bin/python3 /usr/bin/python3.13
 
 COPY --from=builder /app/target/release/ruststack /usr/local/bin/ruststack
 

ruststack-lambda/src/function.rs

@@ -16,6 +16,8 @@ pub enum Runtime {
     Python311,
     #[serde(rename = "python3.12")]
     Python312,
+    #[serde(rename = "python3.13")]
+    Python313,
     #[serde(rename = "nodejs18.x")]
     Nodejs18,
     #[serde(rename = "nodejs20.x")]
@@ -34,6 +36,7 @@ impl Runtime {
             Self::Python310 => "public.ecr.aws/lambda/python:3.10",
             Self::Python311 => "public.ecr.aws/lambda/python:3.11",
             Self::Python312 => "public.ecr.aws/lambda/python:3.12",
+            Self::Python313 => "public.ecr.aws/lambda/python:3.13",
             Self::Nodejs18 => "public.ecr.aws/lambda/nodejs:18",
             Self::Nodejs20 => "public.ecr.aws/lambda/nodejs:20",
             Self::ProvidedAl2 => "public.ecr.aws/lambda/provided:al2",
@@ -49,6 +52,7 @@ impl Runtime {
             "python3.10" => Some(Self::Python310),
             "python3.11" => Some(Self::Python311),
             "python3.12" => Some(Self::Python312),
+            "python3.13" => Some(Self::Python313),
             "nodejs18.x" => Some(Self::Nodejs18),
             "nodejs20.x" => Some(Self::Nodejs20),
             "provided.al2" => Some(Self::ProvidedAl2),
@@ -63,6 +67,7 @@ impl Runtime {
             Self::Python310 => "python3.10",
             Self::Python311 => "python3.11",
             Self::Python312 => "python3.12",
+            Self::Python313 => "python3.13",
             Self::Nodejs18 => "nodejs18.x",
             Self::Nodejs20 => "nodejs20.x",
             Self::ProvidedAl2 => "provided.al2",

ruststack-lambda/src/service.rs

@@ -447,6 +447,7 @@ except Exception as e:
             Runtime::Python310 => "python3.10",
             Runtime::Python311 => "python3.11",
             Runtime::Python312 => "python3.12",
+            Runtime::Python313 => "python3.13",
             _ => "python3",
         };