Improve cold starts on AL2023 (#945)

Improve cold start performance for .NET 8 when HTTP requests are made on Amazon Linux 2023.
See aws/aws-lambda-dotnet#1661.

Author: martincostello

.gitignore

@@ -7,8 +7,7 @@ container-uploader/*.zip
 s3-uploader/node_modules
 s3-uploader/runtimes/rust_on_provided_al2/target
 s3-uploader/runtimes/rust_on_provided_al2023/target
-s3-uploader/runtimes/dotnetcore31/src/obj
-s3-uploader/runtimes/dotnet6/src/obj
+s3-uploader/runtimes/dotnet*/src/obj
 s3-uploader/runtimes/java21/.gradle
 s3-uploader/runtimes/java21/build
 s3-uploader/runtimes/java21/bin

s3-uploader/runtimes/dotnet8_aot_on_provided_al2023/Dockerfile

@@ -6,6 +6,7 @@ COPY src .
 RUN yum update -y && yum install -y clang zlib-devel krb5-devel openssl-devel zip gzip tar wget
 RUN wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh && chmod +x ./dotnet-install.sh && ./dotnet-install.sh --version latest
 ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1
+ENV SSL_CERT_FILE=/tmp/noop
 RUN /root/.dotnet/dotnet publish --configuration Release --arch $ARCH --output /tmp/publish
 RUN zip -j /tmp/code.zip /tmp/publish/bootstrap
 

s3-uploader/runtimes/dotnet8_aot_on_provided_al2023/src/aws-lambda-tools-defaults.json

@@ -1,5 +1,6 @@
 {
   "configuration": "Release",
+  "environment-variables" : "SSL_CERT_FILE=/tmp/noop",
   "framework": "net8.0",
   "function-runtime": "provided.al2023",
   "function-memory-size": 256,