build workflow

.github/workflows/ci.yaml

@@ -0,0 +1,29 @@
+name: CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  # For test
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        java: [17, 21]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK ${{ matrix.java }}
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java }}
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - run: ./gradlew build

README.md

@@ -1,2 +1,4 @@
 # netty-practice
 
+[![CI](https://github.com/vince-test-org/netty-practice/actions/workflows/ci.yaml/badge.svg?branch=main&event=push)](https://github.com/vince-test-org/netty-practice/actions/workflows/ci.yaml)
+