created dev container (#6646)

* created dev container

Signed-off-by: Ved Ratan <vedratan8@gmail.com>

* documentation for .devcontainer

Signed-off-by: Ved Ratan <vedratan8@gmail.com>

---------

Signed-off-by: Ved Ratan <vedratan8@gmail.com>

.devcontainer/Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:1.20
+
+RUN apt update && apt install -y sudo git
+
+ARG USERNAME=root
+RUN echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+    && chmod 0440 /etc/sudoers.d/$USERNAME
+
+ENV DEVCONTAINER=true
+
+COPY . .

.devcontainer/devcontainer.json

@@ -0,0 +1,8 @@
+// See https://containers.dev/implementors/json_reference/ for configuration reference
+{
+	"name": "Kyverno",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+  "remoteUser": "root"
+}

DEVELOPMENT.md

@@ -4,6 +4,7 @@ This document covers basic needs to work with Kyverno codebase.
 
 It contains instructions to build, run, and test Kyverno.
 
+- [Open project in devcontainer](#open-project-in-devcontainer-recommended)
 - [Tools](#tools)
 - [Building local binaries](#building-local-binaries)
   - [Building kyvernopre locally](#building-kyvernopre-locally)
@@ -27,6 +28,27 @@ It contains instructions to build, run, and test Kyverno.
   - [Generating helm charts docs](#generating-helm-charts-docs)
 - [Debugging local code](#debugging-local-code)
 
+## Open project in devcontainer (recommended)
+- Clone the project to your local machine.
+- Make sure that you have the Visual Studio Code editor installed on your system.
+
+- Make sure that you have the Docker installed on your system.
+
+- Open the project in Visual Studio Code.
+
+- If you haven't already done so, install the **Dev Containers** extension in Visual Studio Code.
+
+- Once the extension is installed, you should see a green icon in the bottom left corner of the window.
+
+- After you have installed Dev Containers extension, it should automatically detect the .devcontainer folder inside the project,
+and should suggest you to open the project in container.
+
+- If it doesn't suggest you, then press <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>p</kbd> and search "reopen in container" and click on it.
+
+- If everything goes well, the project should be opened in your devcontainer.
+
+- Then follow the steps as mentioned below to configure the project.
+
 ## Tools
 
 Building and/or testing Kyverno requires additional tooling.