Build WebVOWL and OWL2VOWL from source in Docker

Dockerfile

@@ -2,15 +2,56 @@
 # WebVOWL #
 ###########
 
-# Use tomcat java 8 alpine as base image
-FROM tomcat:9-jre8-alpine
+# Stage 1: Build OWL2VOWL converter from source
+FROM docker.io/maven:3-openjdk-8-slim AS owl2vowl-builder
 
-# Build time arguments (WebVOWL version)
-ARG version=1.1.7
+WORKDIR /owl2vowl
 
-# Download WebVOWL to tomcat webapps directory as root app
-RUN rm -rf /usr/local/tomcat/webapps/* && \
-    wget -O /usr/local/tomcat/webapps/ROOT.war http://vowl.visualdataweb.org/downloads/webvowl_1.1.7.war
+# Clone and build OWL2VOWL WAR
+RUN apt-get update && \
+    apt-get install -y git && \
+    git clone https://github.com/VisualDataWeb/OWL2VOWL.git . && \
+    mvn clean package -P war-release -DskipTests
 
-# Run default server
+# Stage 2: Build WebVOWL from source
+FROM docker.io/node:12-alpine AS webvowl-builder
+
+WORKDIR /build
+
+# Copy package files
+COPY package.json ./
+COPY Gruntfile.js ./
+COPY webpack.config.js ./
+
+# Copy source code and configuration
+COPY src ./src
+COPY util ./util
+COPY .jshintrc ./.jshintrc
+COPY .jshintignore ./.jshintignore
+
+# Install dependencies and build
+RUN npm install && \
+    npm run release
+
+# Stage 3: Runtime - Deploy both to Tomcat
+FROM docker.io/tomcat:9-jdk8-openjdk-slim
+
+# Remove default webapps
+RUN rm -rf /usr/local/tomcat/webapps/*
+
+# First, deploy OWL2VOWL WAR as ROOT (this provides the servlets)
+RUN mkdir -p /usr/local/tomcat/webapps/ROOT
+COPY --from=owl2vowl-builder /owl2vowl/target/*.war /tmp/owl2vowl.war
+RUN cd /usr/local/tomcat/webapps/ROOT && \
+    jar -xf /tmp/owl2vowl.war && \
+    rm /tmp/owl2vowl.war
+
+# Then, copy WebVOWL static files into the same ROOT context
+# This merges the static frontend with the backend servlets
+COPY --from=webvowl-builder /build/deploy /usr/local/tomcat/webapps/ROOT/
+
+# Expose port 8080
+EXPOSE 8080
+
+# Run Tomcat
 CMD ["catalina.sh", "run"]