Dockerfile

# Use an official OpenJDK runtime as a parent image
FROM openjdk:8-jdk-alpine

# set shell, curl, tar, procps to bash
RUN apk update && apk add --no-cache curl tar bash procps

# install maven
ARG MAVEN_VERSION=3.6.3
ARG USER_HOME_DIR="/root"
ARG SHA=c35a1803a6e70a126e80b2b3ae33eed961f83ed74d18fcd16909b2d44d7dada3203f1ffe726c17ef8dcca2dcaa9fca676987befeadc9b9f759967a8cb77181c0
ARG BASE_URL=https://apache.osuosl.org/maven/maven-3/${MAVEN_VERSION}/binaries
RUN mkdir -p /usr/share/maven /usr/share/maven/ref \
  && echo "Downlaoding maven" \
  && curl -fsSL -o /tmp/apache-maven.tar.gz ${BASE_URL}/apache-maven-${MAVEN_VERSION}-bin.tar.gz \
  \
  && echo "Checking download hash" \
  && echo "${SHA}  /tmp/apache-maven.tar.gz" | sha512sum -c - \
  \
  && echo "Unziping maven" \
  && tar -xzf /tmp/apache-maven.tar.gz -C /usr/share/maven --strip-components=1 \
  \
  && echo "Cleaning and setting links" \
  && rm -f /tmp/apache-maven.tar.gz \
  && ln -s /usr/share/maven/bin/mvn /usr/bin/mvn
ENV MAVEN_HOME /usr/share/maven
ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"

# Set the working directory to /app
WORKDIR /app

# Copy all files to app
COPY .  /app

# Install dependencies and build application
RUN mvn clean install

# Make port 8080 available to the world outside this container
EXPOSE 8080

# Run jar file when the container launches
CMD ["java", "-jar", "target/text4shell-poc-0.0.1-SNAPSHOT.jar"]