Add CD

Author: naku

.github/workflows/build.yml

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+name: Build and deploy Docker image
+
+on:
+  push:
+    tags:
+    - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Get the version
+        id: get_version
+        run: echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\/v/}
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push Docker image
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: sismics/ubuntu-java:${{ steps.get_version.outputs.VERSION }}
+      - name: Create Github Release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ steps.get_version.outputs.VERSION }}

CHANGELOG.md

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+## Change Log
+### Version 11.0.8 (2020-09-24)
+- Upgrade to JDK 11.0.8
+### Version 11.0.2 (2019-05-03)
+- Upgrade to JDK 11.0.8
+### Version 8.191 (2018-10-21)
+- Initial release

README.md

@@ -1,2 +1,5 @@
-# docker-ubuntu-java
-Dockerfile for Ubuntu + Oracle JDK
+[![GitHub release](https://img.shields.io/github/release/sismics/docker-ubuntu-java.svg?style=flat-square)](https://github.com/sismics/docker-backupninja/releases/latest)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+
+## About
+Docker image for Ubuntu + Oracle JDK