Add devcontainer setup

.devcontainer/Dockerfile

@@ -0,0 +1,40 @@
+################################################################################
+# Copyright (c) 2024 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+################################################################################
+
+FROM mcr.microsoft.com/devcontainers/rust:latest
+
+ARG USERNAME=vscode
+ARG TARGETARCH
+
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install \
+    # Others
+    curl \
+    zip \
+    gcc \
+    git \
+    && \
+    rm -rf /var/lib/apt/lists/*
+
+# Before installing cargo tools, change to the user that will be used in the container later.
+# The reason is that cargo creates some cache, etc. folders with the correct group rustlang, but 
+# without making them group writable. Easiest fix is to change to the correct user before the install,
+# so that the owner is correct from the start.
+USER ${USERNAME}
+
+# Install cargo cli tools
+RUN cargo install cargo-nextest cargo-deny cargo-tarpaulin cargo-dist --locked
+
+# Install cargo tools for cross compilation
+RUN rustup target add aarch64-unknown-linux-gnu \
+    && rustup toolchain install stable-aarch64-unknown-linux-gnu 

.devcontainer/devcontainer.json

@@ -0,0 +1,56 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/rust
+{
+    "name": "uProtocol-USubscription rust",
+    "build": {
+        "dockerfile": "Dockerfile"
+    },
+    "runArgs": [
+        "--privileged"
+    ],
+    // This is a workaround which is again necessary on MacOS 14.0, it looks like this bug is back:
+    // https://github.com/microsoft/vscode-dev-containers/issues/1487#issuecomment-1143907307
+    "mounts": [
+        "source=rust-volume,target=/rust-volume,type=volume"
+    ],
+    "postCreateCommand": "sudo .devcontainer/post-create.sh",
+    "customizations": {
+        "vscode": {
+            // Set *default* container specific settings.json values on container create.
+            "settings": {
+                "lldb.executable": "/usr/bin/lldb",
+                // VS Code don't watch files under ./target
+                "files.watcherExclude": {
+                    "**/target/**": true
+                },
+                "rust-analyzer.checkOnSave.command": "clippy",
+                "coverage-gutters.coverageBaseDir": "**",
+                "coverage-gutters.coverageFileNames": [
+                    "target/tarpaulin/lcov.info"
+                ]
+            },
+            // Add the IDs of extensions you want installed when the container is created.
+            "extensions": [
+                "asciidoctor.asciidoctor-vscode",
+                "bianxianyang.htmlplay",
+                "bierner.markdown-mermaid",
+                "bierner.markdown-preview-github-styles",
+                "davidanson.vscode-markdownlint",
+                "hediet.vscode-drawio",
+                "linusu.auto-dark-mode",
+                "mhutchie.git-graph",
+                "ryanluker.vscode-coverage-gutters",
+                "rust-lang.rust-analyzer",
+                "streetsidesoftware.code-spell-checker",
+                "tamasfe.even-better-toml",
+                "timonwong.shellcheck",
+                "vadimcn.vscode-lldb",
+                "yzhang.markdown-all-in-one",
+                "zxh404.vscode-proto3"
+            ]
+        }
+    },
+    "workspaceMount": "source=${localWorkspaceFolder},target=/workspace/up-subscription-rust/,type=bind",
+    "workspaceFolder": "/workspace/up-subscription-rust/",
+    "remoteUser": "vscode"
+}

.devcontainer/post-create.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# This is a workaround which is againt necessary on MacOS 14.0, it looks like this bug is back:
+# https://github.com/microsoft/vscode-dev-containers/issues/1487#issuecomment-1143907307
+
+# grant permissions to mounted rust volume
+chown vscode:vscode /rust-volume
+
+# create /.cargo/config.toml in root folder
+mkdir /.cargo/
+touch /.cargo/config.toml
+cat <<EOF >/.cargo/config.toml
+[build]
+target-dir = "/rust-volume/target"
+EOF

README.md

@@ -10,10 +10,10 @@ This codebase is heavily work in progress - among the next things to do and inve
 - [x] make size of command channels bounded and (probably) configurable
 - [x] handling of startup and proper shutdown for usubscription service
 - [ ] look into recent up-rust changes around Rpc and UTransport implementations, and whether we can  use something from there
-- [ ] add github CI pipeline setup
+- [x] add github CI pipeline setup
 - [x] create a usubscription-cli module, a simple command-line frontend for running up-subscription
 - [ ] create a little demo application for interacting with up-subscription
-- [ ] set up a devcontainer
+- [x] set up a devcontainer
 - [ ] feed back learnings and clarifications into up-spec usubscription documentation
 
 ## Implementation questions