[**Added**] Build neo-cli Docker Image

.devcontainer/devcontainer.dockerfile

@@ -1,3 +1,5 @@
 FROM mcr.microsoft.com/devcontainers/dotnet:8.0-jammy
 # Install the libleveldb-dev package 
-RUN apt-get update && apt-get install -y libleveldb-dev
+RUN apt-get update
+RUN apt-get install -y libleveldb-dev
+RUN dotnet workload update

.devcontainer/devcontainer.json

@@ -1,17 +1,17 @@
 // For format details, see https://aka.ms/devcontainer.json. For config options, see the
 // README at: https://github.com/devcontainers/templates/tree/main/src/dotnet
 {
-	"name": "C# (.NET)",
-	"build": {
-		// Path is relative to the devcontainer.json file.
-		"dockerfile": "devcontainer.dockerfile"
-	},
-	"postCreateCommand": "dotnet build",
-	"customizations": {
-		"vscode": {
-			"extensions": [
-				"ms-dotnettools.csdevkit"
-			]
-		}
-	}
+  "name": "C# (.NET)",
+  "build": {
+    // Path is relative to the devcontainer.json file.
+    "dockerfile": "devcontainer.dockerfile"
+  },
+  //"postCreateCommand": "",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-dotnettools.csdevkit"
+      ]
+    }
+  }
 }

.github/workflows/devcontainer.yml

@@ -0,0 +1,25 @@
+name: Build & Publish (devcontainer)
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout (GitHub)
+      uses: actions/checkout@v4
+
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and run Dev Container task
+      uses: devcontainers/ci@v0.3
+      with:
+        imageName: ghcr.io/${{ github.repository_owner }}/neo
+        push: always