Update template, add features and image metadata info (#28)

.devcontainer/Dockerfile

@@ -1,8 +0,0 @@
-# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.195.0/containers/rust/.devcontainer/base.Dockerfile
-# [Choice] Debian OS version (use bullseye on local arm64/Apple Silicon): buster, bullseye
-ARG VARIANT="bullseye"
-FROM mcr.microsoft.com/devcontainers/rust:1-${VARIANT}
-
-# [Optional] Uncomment this section to install additional packages.
-# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-#     && apt-get -y install --no-install-recommends <your-package-list-here>

.devcontainer/devcontainer.json

@@ -1,41 +1,23 @@
-// For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
-// https://github.com/microsoft/vscode-dev-containers/tree/v0.195.0/containers/rust
+// 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": "Rust Sample",
-	"build": {
-		"dockerfile": "Dockerfile",
-		"args": {
-			// Use the VARIANT arg to pick a Debian OS version: buster, bullseye
-			// Use bullseye when on local on arm64/Apple Silicon.
-			"VARIANT": "bullseye"
-		}
-	},
-	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],
-		
+	"name": "Rust",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/rust:0-1-bullseye",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
 	// Configure tool-specific properties.
 	"customizations": {
 		// Configure properties specific to VS Code.
 		"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"
-			},
-			
-			// Add the IDs of extensions you want installed when the container is created.
+			"settings": {},
 			"extensions": [
-				"vadimcn.vscode-lldb",
-				"mutantdino.resourcemonitor",
-				"rust-lang.rust-analyzer",
-				"tamasfe.even-better-toml",
-				"serayuzgur.crates"
+				"streetsidesoftware.code-spell-checker"
 			]
 		}
-	},
+	}
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],
@@ -43,6 +25,6 @@
 	// Use 'postCreateCommand' to run commands after the container is created.
 	// "postCreateCommand": "rustc --version",
 
-	// Comment out to run as root instead.
-	"remoteUser": "vscode"
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
 }

README.md

@@ -2,7 +2,7 @@
 
 [![Open in Dev Containers](https://img.shields.io/static/v1?label=Dev%20Containers&message=Open&color=blue&logo=visualstudiocode)](https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/microsoft/vscode-remote-try-rust)
 
-A **development container** is a running [Docker](https://www.docker.com) container with a well-defined tool/runtime stack and its prerequisites. You can try out development containers with **[GitHub Codespaces](https://github.com/features/codespaces)** or **[Visual Studio Code Dev Containers](https://aka.ms/vscode-remote/containers)**.
+A **development container** is a running container with a well-defined tool/runtime stack and its prerequisites. You can try out development containers with **[GitHub Codespaces](https://github.com/features/codespaces)** or **[Visual Studio Code Dev Containers](https://aka.ms/vscode-remote/containers)**.
 
 This is a sample project that lets you try out either option in a few easy steps. We have a variety of other [vscode-remote-try-*](https://github.com/search?q=org%3Amicrosoft+vscode-remote-try-&type=Repositories) sample projects, too.
 
@@ -41,20 +41,29 @@ Follow these steps to open this sample in a container using the VS Code Dev Cont
 
 Once you have this sample opened, you'll be able to work with it like you would locally.
 
-> **Note:** This container runs as a non-root user with sudo access by default. Comment out `"remoteUser": "vscode"` in `.devcontainer/devcontainer.json` if you'd prefer to run as root.
-
 Some things to try:
 
 1. **Edit:**
    - Open `main.rs`
    - Try adding some code and check out the language features.
-   - Notice that several extensions are already installed in the container, such as Rust support for VS Code, since the `.devcontainer/devcontainer.json` lists a set of extensions, including `"rust-lang.rust"`, to install automatically when the container is created.
+   - Make a spelling mistake and notice it is detected. The [Code Spell Checker](https://marketplace.visualstudio.com/items?itemName=streetsidesoftware.code-spell-checker) extension was automatically installed because it is referenced in `.devcontainer/devcontainer.json`.
+   - Also notice that utilities like `rls` and the [Rust Analyzer](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer) extension are installed. Tools are installed in the `mcr.microsoft.com/devcontainers/rust` image and Dev Container settings and metadata are automatically picked up from [image labels](https://containers.dev/implementors/reference/#labels).
+
 1. **Terminal:** Press <kbd>ctrl</kbd>+<kbd>shift</kbd>+<kbd>\`</kbd> and type `uname` and other Linux commands from the terminal window.
+
 1. **Build, Run, and Debug:**
    - Open `main.rs`
    - Add a breakpoint (e.g. on line 8).
    - Press <kbd>F5</kbd> to launch the app in the container.
    - Once the breakpoint is hit, try hovering over variables, examining locals, and more.
+
+1. **Install the GitHub CLI using a Dev Container Feature:**
+   - Press <kbd>F1</kbd> and select the **Dev Containers: Configure Container Features...** or **Codespaces: Configure Container Features...** command.
+   - Type "github" in the text box at the top.
+   - Check the check box next to "GitHub CLI" (published by devcontainers) 
+   - Click OK
+   - Press <kbd>F1</kbd> and select the **Dev Containers: Rebuild Container** or **Codespaces: Rebuild Container** command so the modifications are picked up.
+
  
 ## Contributing