Fix workflow

- Update java to jre11, worked in local tests

.github/workflows/dockerpublish.yml

@@ -0,0 +1,90 @@
+name: Docker
+
+on:
+  push:
+    # Publish `master` as Docker `latest` image.
+    branches:
+      - master
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+
+  # Run tests for any PRs.
+  pull_request:
+
+env:
+  IMAGE_NAME: terasology
+
+jobs:
+  # Run tests.
+  # See also https://docs.docker.com/docker-hub/builds/automated-testing/
+  #test:
+  #  runs-on: ubuntu-latest
+
+  #  steps:
+  #    - uses: actions/checkout@v2
+
+  #    - name: Run tests
+  #      run: |
+  #        if [ -f docker-compose.test.yml ]; then
+  #          docker-compose --file docker-compose.test.yml build
+  #          docker-compose --file docker-compose.test.yml run sut
+  #        else
+  #          docker build . --file Dockerfile
+  #        fi
+
+  # Push image to GitHub Packages.
+  # See also https://docs.docker.com/docker-hub/builds/
+  push:
+    # Ensure test job passes before pushing image.
+    # needs: test
+
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Build image
+        run: docker build . --file Dockerfile --tag image
+
+      - name: Log into registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin
+
+      - name: Push image
+        run: |
+          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$IMAGE_NAME
+
+          # Change all uppercase to lowercase
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          # Strip "v" prefix from tag name
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          # Use Docker `latest` tag convention
+          [ "$VERSION" == "master" ] && VERSION=latest
+
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+
+          rm versionInfo.properties* || true
+
+          if [ " ${TERASOLOGY_PROPERTIES_URL}" == " " ]; then
+              if [ " ${TERASOLOGY_BUILD}" == " " ]; then
+                  TERASOLOGY_PROPERTIES_URL=http://jenkins.terasology.org/job/TerasologyStable/lastSuccessfulBuild/artifact/build/resources/main/org/terasology/version/versionInfo.properties
+              else
+                  if [ " ${TERASOLOGY_BUILD}" == " unstable" ]; then
+                      TERASOLOGY_PROPERTIES_URL=http://jenkins.terasology.org/job/Terasology/lastSuccessfulBuild/artifact/build/resources/main/org/terasology/version/versionInfo.properties
+                  fi
+              fi
+          fi
+          wget ${TERASOLOGY_PROPERTIES_URL}
+          source versionInfo.properties
+          TAGNAME=$engineVersion-$displayVersion
+          echo TAGNAME=$TAGNAME
+          docker tag image $IMAGE_ID:$TAGNAME
+          docker push $IMAGE_ID:$TAGNAME

Dockerfile

@@ -1,10 +1,10 @@
-FROM ubuntu:16.04
+FROM ubuntu:18.04
 MAINTAINER Marcel Otte <qwc+docker@mmo.to>
-RUN apt-get update && apt-get install -y openjdk-8-jre wget unzip
+RUN apt-get update && apt-get install -y openjdk-11-jre wget unzip
 RUN mkdir /terasology \
     && wget -P /terasology http://jenkins.terasology.org/job/DistroOmegaRelease/lastSuccessfulBuild/artifact/distros/omega/build/distributions/TerasologyOmega.zip \
     && unzip /terasology/TerasologyOmega.zip -d /terasology \
     && rm -f /terasology/TerasologyOmega.zip
-ENTRYPOINT java -jar /terasology/libs/Terasology.jar -headless -homedir=/terasology/server
+ENTRYPOINT cd /terasology && java -jar /terasology/libs/Terasology.jar -headless -homedir=/terasology/server
 VOLUME /terasology/server
 EXPOSE 25777

Jenkinsfile

@@ -0,0 +1,7 @@
+node ('main') {
+  stage('docker') {
+    sh '''
+      sh build.sh
+    '''
+  }
+}

README.md

@@ -1,14 +1,25 @@
 # docker-terasology
 
-check out and build with
-```docker build .```
+Automatic builds are provided by dockerhub and my own jenkins instance.
+For all enthusiasts who just want to have a running server:
+- `docker pull qwick/terasology:latest`
+- or with version: `docker pull qwick/terasology:1.2.1-alpha`
 
-or use the image on dockerhub:
-https://registry.hub.docker.com/u/qwick/terasology/
+For all developers who want a unstable build for debugging or just testing purposes:
+- `docker pull qwick/terasology:unstable-latest`
+- a versioned tag is available too.
 
-## Latest changes
-### 2016-03-16: [Alpha release 1; Engine v1.0.0](https://github.com/MovingBlocks/Terasology/releases/tag/v1.0.0)
-I'm again a little late with the docker image update, sorry! ;-)
+Versioned tags may change over time.
+
+## Versioning
+
+To avoid confusion here the docker image tag schema:
+
+Stable:
+- `<engineVersion>-<displayVersion>` e.g. `1.2.1-alpha`
+
+Unstable:
+- `unstable-<engineVersion>-<buildNumber>` e.g. `unstable-1.2.2-SNAPSHOT-1806`
 
 
 ## Small guide
@@ -25,8 +36,6 @@ Best practice would be cloning this repository and using docker-compose to pull
 
 There may be standard configurations in the future for specific use cases, may be... ;-)
 
-One thing's for sure, I'll keep this a little more updated after this long time of silence.
-
 More information about terasology can be found on following sites:
 * https://github.com/MovingBlocks/Terasology
 * http://terasology.org/

build.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+rm versionInfo.properties*
 
 wget http://jenkins.terasology.org/job/TerasologyStable/lastSuccessfulBuild/artifact/build/resources/main/org/terasology/version/versionInfo.properties
 
@@ -11,4 +12,9 @@ TAGNAME=$engineVersion-$displayVersion
 
 docker build --no-cache -t qwick/terasology:$TAGNAME .
 
+NEW_TAGNAME=latest
+
+docker tag qwick/terasology:$TAGNAME qwick/terasology:$NEW_TAGNAME
+
 docker push qwick/terasology:$TAGNAME
+docker push qwick/terasology:$NEW_TAGNAME

docker-compose.yml

@@ -1,6 +1,8 @@
-terasology:
+version: '2'
+services:
+    terasology:
       image: qwick/terasology:latest
       ports:
         - 25777:25777
       volumes:
-    - /mnt/data/docker/terasology:/terasology/server
+        - ./terasology:/terasology/server