Make things parametrizeable

See: #2

.env

@@ -0,0 +1,4 @@
+#  options: stable, unstable
+TERASOLOGY_BUILD=stable
+# options: latest or any release tag
+TERASOLOGY_TAG=latest

Dockerfile

@@ -1,10 +1,27 @@
 FROM ubuntu:18.04
 MAINTAINER Marcel Otte <[email protected]>
-RUN apt-get update && apt-get install -y openjdk-11-jre wget unzip
+
+ARG TERASOLOGY_OMEGA_URL
+ARG TERASOLOGY_BUILD
+
+RUN apt-get update \
+    && apt-get install -y openjdk-11-jre wget unzip \
+    && apt-get clean \
+    && rm -rf /var/cache/apt/archives \
+    && rm -rf /var/lib/apt/lists/*
+
 RUN mkdir /terasology \
-    && wget -P /terasology http://jenkins.terasology.org/job/DistroOmegaRelease/lastSuccessfulBuild/artifact/distros/omega/build/distributions/TerasologyOmega.zip \
+    if [ " ${TERASOLOGY_OMEGA_URL}" == " " ]; then \
+        if [ " ${TERASOLOGY_BUILD}" == " stable" ]; then \
+            TERASOLOGY_OMEGA_URL=http://jenkins.terasology.org/job/DistroOmegaRelease/lastSuccessfulBuild/artifact/distros/omega/build/distributions/TerasologyOmega.zip \
+        else \
+            TERASOLOGY_OMEGA_URL=http://jenkins.terasology.org/job/DistroOmega/lastSuccessfulBuild/artifact/distros/omega/build/distributions/TerasologyOmega.zip \
+        fi \
+    fi \
+    && wget -P /terasology ${TERASOLOGY_OMEGA_URL} \
     && unzip /terasology/TerasologyOmega.zip -d /terasology \
     && rm -f /terasology/TerasologyOmega.zip
+
 ENTRYPOINT cd /terasology && java -jar /terasology/libs/Terasology.jar -headless -homedir=/terasology/server
 VOLUME /terasology/server
 EXPOSE 25777

build.sh

@@ -2,7 +2,19 @@
 
 rm versionInfo.properties*
 
-wget http://jenkins.terasology.org/job/TerasologyStable/lastSuccessfulBuild/artifact/build/resources/main/org/terasology/version/versionInfo.properties
+
+if [ " ${TERASOLOGY_PROPERTIES_URL}" == " " ]; then
+    if [ " ${TERASOLOGY_BUILD}" == " " ]; then
+        source .env
+        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
 
@@ -12,9 +24,10 @@ 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
+if [ " ${TERASOLOGY_TAG}" == " latest" ]; then
+    NEW_TAGNAME=latest
+    docker tag qwick/terasology:$TAGNAME qwick/terasology:$NEW_TAGNAME
+
+    docker push qwick/terasology:$NEW_TAGNAME
+fi

docker-compose.yml

@@ -1,7 +1,9 @@
-version: '2'
+version: '3.7'
 services:
     terasology:
-      image: qwick/terasology:latest
+      build:
+        context: .
+      image: "qwick/terasology:${TERASOLOGY_TAG}"
       ports:
         - 25777:25777
       volumes: