Update go example, README

.devcontainer/Dockerfile

@@ -23,7 +23,15 @@ RUN go get -u -v \
     github.com/mgechev/revive \
     github.com/derekparker/delve/cmd/dlv
 
-# Install git, process tools
+# gocode-gomod
+RUN go get -x -d github.com/stamblerre/gocode \
+    && go build -o gocode-gomod github.com/stamblerre/gocode \
+    && mv gocode-gomod $GOPATH/bin/
+
+# Copy default endpoint specific user settings overrides into container to specify Python path
+COPY settings.vscode.json /root/.vscode-remote/data/Machine/settings.json
+
+# Verify git, process tools installed
 RUN apt-get update && apt-get -y install git procps
 
 # Clean up

.devcontainer/devcontainer.json

@@ -1,6 +1,7 @@
 {
 	"name": "Go",
 	"dockerFile": "Dockerfile",
+	"appPort": 9000,
 	"extensions": [
 		"ms-vscode.go"
 	],

.devcontainer/settings.vscode.json

@@ -0,0 +1,3 @@
+{
+    "go.gopath": "/go"
+}

.vscode/launch.json

@@ -2,11 +2,11 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": "Launch file",
+            "name": "Launch Server",
             "type": "go",
             "request": "launch",
             "mode": "debug",
-            "program": "${file}"
+            "program": "${workspaceFolder}/server.go"
         }
     ]
 }

README.md

@@ -1,16 +1,47 @@
-# Go Sample Project for Visual Studio Remote - Containers
+# Try Out Development Containers: Go
 
-This is a sample project to go along with the "try" quick start for the VS Code Remote - Containers extension.
+This is a sample project to go along with the "try" quick start for the **[VS Code Remote - Containers](https://aka.ms/vscode-remote/containers)** extension.
 
-Using the sample:
+**If you aren't already following the quick start, [see here](#setting-up-the-development-container).**
 
-1. **[Windows]** Disable automatic line ending conversion for Git on the *Windows side* (given Linux and Windows use different line endings). Run: `git config --global core.autocrlf false`
+## Things to try
-2. Follow the steps at [https://aka.ms/vscode-remote/containers/getting-started](https://aka.ms/vscode-remote/containers/getting-started).
+
-3. Open `hello.go`, edit, launch the program, and try things out!
+One you have this sample opened in a container, you'll be able to work with it like you would locally.
+
+Some things to try:
+
+2. **Edit:**
+   1. Open `server.go`
+   2. Try adding some code and check out the language features.
+3. **Build, Run, and Debug:**
+   1. Open `sever.go`
+   2. Add a breakpoint.
+   3. Press <kbd>F5</kbd> to launch the app in the container.
+   4. Open a local browser and go to `http://localhost:9000` and note you can connect to the server in the container.
+   5. Once the breakpoint is hit, try hovering over variables, examining locals, and more.
+4. **Forward another port:**
+   1. Stop debugging
+   2. Open `sever.js`
+   3. Change the server port to 5000. (`portNumber := "5000"`)
+   4. Press <kbd>F5</kbd> to launch the app in the container.
+   5. Press <kbd>F1</kbd> and run the **Remote-Containers: Forward Port...** command.
+   6. Select port 5000.
+   7. Click "Open Browser" in the notification that appears to access the web app on this new port.
+
+## Setting up the development container
+
+Follow these steps to open this sample in a container:
+
+1. If this is your first time using a development container, please follow the [getting started steps](https://aka.ms/vscode-remote/containers/getting-started) to get set up.
+
+2. If you're not yet in a development container:
+   1. Clone this repository.
+   2. Press <kbd>F1</kbd> and select the **Remote-Container: Open Folder in Container...** command.
+   3. Select the cloned copy of this folder, wait for the container to start, and try things out!
 
 ## Contributing
 
-This project welcomes contributions and suggestions.  Most contributions require you to agree to a
+This project welcomes contributions and suggestions. Most contributions require you to agree to a
 Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
 the rights to use your contribution. For details, visit https://cla.microsoft.com.
 

hello.go

@@ -1,10 +0,0 @@
-/*----------------------------------------------------------------------------------------
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See LICENSE in the project root for license information.
- *---------------------------------------------------------------------------------------*/
- 
-package main
-import "fmt"
-func main() {
-    fmt.Println("hello world")
-}

server.go

@@ -0,0 +1,23 @@
+/*----------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See LICENSE in the project root for license information.
+ *---------------------------------------------------------------------------------------*/
+ 
+ package main
+  
+ import (
+     "io"
+     "net/http"
+     "fmt"
+ )
+  
+ func hello(w http.ResponseWriter, r *http.Request) {
+     io.WriteString(w, "Hello remote world!")
+ }
+  
+ func main() {
+     portNumber := "9000"
+     http.HandleFunc("/", hello)
+     fmt.Println("Server listening on port ", portNumber)
+     http.ListenAndServe(":" + portNumber, nil)
+    }