#1573: Adding GitHub actions initial workflow configuration

.github/workflows/maven.yml

@@ -0,0 +1,18 @@
+name: github
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: Build with Maven
+      run: mvn -B install --no-transfer-progress --file pom.xml

README.md

@@ -1,6 +1,7 @@
 codecentric's Spring Boot Admin
 ===============================
 [![Apache License 2](https://img.shields.io/badge/license-ASF2-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0.txt)
+[![Build Status](https://github.com/codecentric/spring-boot-admin/workflows/github/badge.svg)](https://github.com/codecentric/spring-boot-admin/actions)
 [![Build Status](https://travis-ci.org/codecentric/spring-boot-admin.svg?branch=master)](https://travis-ci.org/codecentric/spring-boot-admin)
 [![Coverage Status](https://coveralls.io/repos/github/codecentric/spring-boot-admin/badge.svg?branch=master)](https://coveralls.io/github/codecentric/spring-boot-admin?branch=master)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/de.codecentric/spring-boot-admin/badge.svg)](https://maven-badges.herokuapp.com/maven-central/de.codecentric/spring-boot-admin/)