devcontainer.json

// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.2/containers/java
{
    "name": "Java",
    "image": "mcr.microsoft.com/vscode/devcontainers/base:bullseye",

    // Configure tool-specific properties.
    "customizations": {
        // Configure properties specific to VS Code.
        "vscode": {
            // Set *default* container specific settings.json values on container create.
            "settings": { 
            },
            
            // Add the IDs of extensions you want installed when the container is created.
            "extensions": [
                "vscjava.vscode-java-pack",
                "vscjava.vscode-gradle",
                "shengchen.vscode-checkstyle"
            ]
        }
    },

    "onCreateCommand": "gradle assemble",

    // Forward the noVNC port (desktop-lite: https://github.com/devcontainers/features/tree/main/src/desktop-lite)  
    "forwardPorts": [6080],

    // Need to connect as root otherwise we run into issues with gradle.
    // default option is "vscode". More info: https://aka.ms/vscode-remote/containers/non-root.
    "remoteUser": "root",
    "features": {
        // Adds a lightweight desktop that can be accessed using a VNC viewer or the web
        "desktop-lite": "latest",

        // Install java
        "java": {
            "version": "18",
            "installGradle": true,
            "jdkDistro": "sem"
        }
    }
}