Codespace support for exemplar

.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/cpp:1-ubuntu-22.04
+
+USER vscode
+
+# Install latest cmake
+RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /usr/share/keyrings/kitware-archive-keyring.gpg >/dev/null
+RUN echo 'deb [signed-by=/usr/share/keyrings/kitware-archive-keyring.gpg] https://apt.kitware.com/ubuntu/ jammy main' | sudo tee /etc/apt/sources.list.d/kitware.list >/dev/null
+RUN sudo apt-get update && sudo apt-get install -y cmake
+
+# Install pre-commit
+RUN sudo apt-get install -y python3-pip && pip3 install pre-commit
+
+# Avoid ASAN Stalling
+# See: https://github.com/google/sanitizers/issues/1614
+# Alternative is to update to above clang-18 and gcc-13.2
+# Maybe crashing codespace???
+RUN sudo sysctl -w vm.mmap_rnd_bits=28

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/cpp
+
+{
+	"name": "Beman Project Generic Devcontainer",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"postCreateCommand": "bash .devcontainer/postcreate.sh",
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"ms-vscode.cpptools",
+				"ms-vscode.cmake-tools"
+			]
+		}
+	}
+}

.devcontainer/postcreate.sh

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+# Setup pre-commit
+pre-commit
+pre-commit install