Add devcontainer config

.devcontainer/Dockerfile

@@ -0,0 +1,62 @@
+## Dockerfile for devcontainer
+
+FROM mcr.microsoft.com/devcontainers/base:debian AS base
+
+ARG USER=vscode
+ARG GROUP=vscode
+
+ENV HOME="/home/${USER}"
+ENV PATH="$HOME/.cargo/bin:$PATH"
+
+# Install dependencies
+RUN apt-get update \
+    && apt-get -y install \
+        build-essential \
+        cmake \
+        curl \
+        git \
+        gnupg \
+        lsb-release \
+        make \
+        software-properties-common \
+        sudo \
+        wget
+
+ARG LLVM_VERSION=17
+
+# Install llvm
+RUN wget https://apt.llvm.org/llvm.sh \
+    && chmod +x ./llvm.sh         \
+    && sudo ./llvm.sh ${LLVM_VERSION} all      \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/clang-cl /usr/bin/clang-cl \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/llvm-lib /usr/bin/llvm-lib \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/lld-link /usr/bin/lld-link \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/llvm-ml /usr/bin/llvm-ml   \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/ld.lld /usr/bin/ld.lld     \
+    && sudo ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/clang /usr/bin/clang
+
+FROM base AS dev
+
+# Make sure the devcontainer user has sudo access
+RUN chown -R "${USER}:${GROUP}" /home/${USER} \
+    && echo "${USER} ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+# Persist bash hystory
+RUN SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhistory/.bash_history" \
+    && mkdir /commandhistory \
+    && touch /commandhistory/.bash_history \
+    && chown -R "${USER}" /commandhistory \
+    && echo "$SNIPPET" >> "/home/${USER}/.bashrc"
+
+USER $USER
+
+ARG RUST_TOOLCHAIN=1.81.0
+
+# Install rust
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
+    && rustup default ${RUST_TOOLCHAIN} \
+    && rustup target add x86_64-unknown-linux-gnu \
+    && rustup target add x86_64-unknown-none      \
+    && rustup target add x86_64-pc-windows-msvc   \
+    && cargo install just
+

.devcontainer/devcontainer.json

@@ -0,0 +1,33 @@
+// For more info on the configuration below, check out the link:
+// https://code.visualstudio.com/docs/devcontainers/create-dev-container
+{
+  "name": "Hyperlight",
+
+  "image": "ghcr.io/hyperlight-dev/hyperlight-devcontainer:latest",
+
+  "containerUser": "vscode",
+  // Environment for the container also used by in the `postCreateCommand`
+  "containerEnv": {
+    "DEVICE": "/dev/kvm",
+    "KVM_SHOULD_BE_PRESENT": "true",
+    "REMOTE_USER": "vscode",
+    "REMOTE_GROUP": "vscode"
+  },
+
+  "runArgs": [
+      "--device=/dev/kvm"
+  ],
+
+  // Use 'postCreateCommand' to run commands after the container is created
+  "postCreateCommand": "bash .devcontainer/setup.sh",
+
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-vscode.cmake-tools",
+        "rust-lang.rust-analyzer",
+        "vadimcn.vscode-lldb"
+      ]
+    }
+  }
+}

.devcontainer/setup.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# Change device ownership
+sudo chown -R $REMOTE_USER:$REMOTE_GROUP ${DEVICE}
+

.github/workflows/CreateDevcontainerImage.yml

@@ -0,0 +1,73 @@
+name: Create and publish devcontainer Docker image
+
+on:
+  push:
+    branches:
+      - "main"
+    paths:
+      - ".devcontainer/Dockerfile"
+      - ".github/workflows/CreateDevcontainerImage.yml"
+      - "rust-toolchain.toml"
+
+# Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}-devcontainer
+  USER: vscode
+  GROUP: vscode
+  LLVM_VERSION: 17
+  RUST_TOOLCHAIN_DEFAULT: 1.81.0
+  RUST_TOOLCHAIN_FILE: rust-toolchain.toml
+
+# There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu.
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
+
+      - name: Read Rust toolchain version from ${{ env.RUST_TOOLCHAIN_FILE }}
+        id: toolchain
+        run: |
+          version=$(cat ${{ env.RUST_TOOLCHAIN_FILE }} | sed -n '/\[toolchain\]/,/^\[/{/^\s*channel = /s/[^"]*"\([^"]*\)".*/\1/p}')
+          cat ${{ env.RUST_TOOLCHAIN_FILE }} | grep $version &> /dev/null \
+            && echo "RUST_TOOLCHAIN=${version}" >> "$GITHUB_OUTPUT" \
+            || echo "RUST_TOOLCHAIN=${{ env.RUST_TOOLCHAIN_FILE }}" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        id: push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./.devcontainer
+          push: true
+          tags: |
+            ${{ steps.meta.outputs.tags }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            USER=${{ env.USER }}
+            GROUP=${{ env.GROUP }}
+            LLVM_VERSION=${{ env.LLVM_VERSION }}
+            RUST_TOOLCHAIN=${{ steps.toolchain.outputs.RUST_TOOLCHAIN }}

.gitignore

@@ -474,4 +474,4 @@ hyperlight_guest.h
 # created by vs code c# extension
 .mono
 
-!.gitkeep
+!.gitkeep

README.md

@@ -224,6 +224,10 @@ If you get the error `Error: NoHypervisorFound` and KVM or mshv is set up then t
 
 For more details on how to verify that KVM is correctly installed and permissions are correct, follow the guide [here](https://help.ubuntu.com/community/KVM/Installation).
 
+### Or you can use a codespace
+
+[![Open in GitHub Codespaces](https://github.com/codespaces/badge.svg)](https://codespaces.new/hyperlight-dev/hyperlight)
+
 ## Contributing to Hyperlight
 
 If you are interested in contributing to Hyperlight, running the entire test-suite is a good way to get started. To do so, on your console, run the following commands: