Update template, illustrate Features and image metadata (#50)

* Update template, illustrate Features and image metadata

* Bump to 1.19

* Fix typo

.devcontainer/devcontainer.json

@@ -1,35 +1,20 @@
-// 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/go
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/go
 {
 	"name": "Go",
-	"build": {
-		"dockerfile": "Dockerfile",
-		"args": {
-			// Update the VARIANT arg to pick a version of Go: 1, 1.16, 1.17
-			// Append -bullseye or -buster to pin to an OS version.
-			// Use -bullseye variants on local arm64/Apple Silicon.
-			"VARIANT": "1.17-bullseye",
-			// Options
-			"NODE_VERSION": "lts/*"
-		}
-	},
-	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined" ],
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/go:0-1.19-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": { 
-				"go.toolsManagement.checkForUpdates": "local",
-				"go.useLanguageServer": true,
-				"go.gopath": "/go",
-				"go.goroot": "/usr/local/go"
-			},
-			
-			// Add the IDs of extensions you want installed when the container is created.
+			"settings": {},
 			"extensions": [
-				"golang.Go"
+				"streetsidesoftware.code-spell-checker"
 			]
 		}
 	},
@@ -37,22 +22,18 @@
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [9000],
 
-	// Use 'portsAttributes' to set default properties for specific forwarded ports. More info: https://code.visualstudio.com/docs/remote/devcontainerjson-reference.
+	// Use 'portsAttributes' to set default properties for specific forwarded ports. 
+	// More info: https://containers.dev/implementors/json_reference/#port-attributes
 	"portsAttributes": {
 		"9000": {
 			"label": "Hello Remote World",
 			"onAutoForward": "notify"
 		}
-	},
-
-	// Use 'otherPortsAttributes' to configure any ports that aren't configured using 'portsAttributes'.
-	// "otherPortsAttributes": {
-	// 		"onAutoForward": "silent"
-	// },
+	}
 
 	// Use 'postCreateCommand' to run commands after the container is created.
 	// "postCreateCommand": "go version",
 
-	// Uncomment to connect as a non-root user. More info: https://aka.ms/vscode-remote/containers/non-root.
-	"remoteUser": "vscode"
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
 }