Migrated to Ubuntu:18.10 and Java installation via SDKMan. Fixes gh-754

docker/spring-cloud-contract-docker/Dockerfile

@@ -1,7 +1,25 @@
-FROM anapsix/alpine-java:8_jdk
+FROM ubuntu:18.10
+
+ARG SDKMAN_JAVA_INSTALLATION=8.0.181-zulu
 
 MAINTAINER Marcin Grzejszczak <mgrzejszczak@pivotal.io>
 
+RUN apt-get update && apt-get install -y curl \
+    unzip \
+    zip \
+    && apt-get clean
+
+# Install sdkman and java
+RUN curl -s get.sdkman.io | bash
+COPY sdkman.config /.sdkman/etc/config
+COPY sdkman/ /usr/local/bin/
+RUN /bin/bash -c "chmod +x /usr/local/bin/sdkman-exec.sh && chmod +x /usr/local/bin/sdkman-wrapper.sh && chmod +x /root/.sdkman/bin/sdkman-init.sh"
+RUN /bin/bash -c "source /root/.sdkman/bin/sdkman-init.sh"
+RUN sdkman-wrapper.sh install java "${SDKMAN_JAVA_INSTALLATION}"
+ENV JAVA_HOME /root/.sdkman/candidates/java/current/
+ENV PATH "${PATH}:${JAVA_HOME}/bin"
+
+# Spring Cloud Contract
 COPY project /spring-cloud-contract/
 WORKDIR /spring-cloud-contract/
 # Let's copy the downloaded deps to .m2 and the gradle cache

docker/spring-cloud-contract-docker/get_dependencies.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-WRAPPER_VERSION="4.4.1"
+WRAPPER_VERSION="4.10.2"
 GRADLE_BIN_DIR="gradle-${WRAPPER_VERSION}-bin"
 GRADLE_WRAPPER_DIR="${HOME}/.gradle/wrapper/dists/${GRADLE_BIN_DIR}"
 CURRENT_DIR="$( pwd )"

docker/spring-cloud-contract-docker/project/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-bin.zip

docker/spring-cloud-contract-docker/sdkman.config

@@ -0,0 +1,8 @@
+# make gvm non-interactive, great for CI environments
+sdkman_auto_answer=true
+
+# don't prompt user to selfupdate on new shell
+sdkman_suggestive_selfupdate=false
+
+# don't perform automatic selfupdates
+sdkman_auto_selfupdate=false

docker/spring-cloud-contract-docker/sdkman/sdkman-exec.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# A quick wrapper to source the gvm env and run a command
+# This is used to run sdkman in Dockerfile RUN commands
+# since the RUN commands does not use interactive shells
+
+[[ -s "/root/.sdkman/bin/sdkman-init.sh" ]] && source "/root/.sdkman/bin/sdkman-init.sh" && exec "$@"

docker/spring-cloud-contract-docker/sdkman/sdkman-wrapper.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# A quick wrapper to source the gvm env and run it
+# This is used to run gvm in Dockerfile RUN commands
+# since the RUN commands does not use interactive shells
+
+[[ -s "/root/.sdkman/bin/sdkman-init.sh" ]] && source "/root/.sdkman/bin/sdkman-init.sh" && sdk $@

docker/spring-cloud-contract-stub-runner-docker/Dockerfile

@@ -1,9 +1,26 @@
-FROM anapsix/alpine-java:8_jdk
+FROM ubuntu:18.10
+
+ARG SDKMAN_JAVA_INSTALLATION=8.0.181-zulu
 
 MAINTAINER Marcin Grzejszczak <mgrzejszczak@pivotal.io>
 
-ENV SERVER_PORT 8083
+RUN apt-get update && apt-get install -y curl \
+    unzip \
+    zip \
+    && apt-get clean
 
+# Install sdkman and java
+RUN curl -s get.sdkman.io | bash
+COPY sdkman.config /.sdkman/etc/config
+COPY sdkman/ /usr/local/bin/
+RUN /bin/bash -c "chmod +x /usr/local/bin/sdkman-exec.sh && chmod +x /usr/local/bin/sdkman-wrapper.sh && chmod +x /root/.sdkman/bin/sdkman-init.sh"
+RUN /bin/bash -c "source /root/.sdkman/bin/sdkman-init.sh"
+RUN sdkman-wrapper.sh install java "${SDKMAN_JAVA_INSTALLATION}"
+ENV JAVA_HOME /root/.sdkman/candidates/java/current/
+ENV PATH "${PATH}:${JAVA_HOME}/bin"
+
+# Spring Cloud Contract
+ENV SERVER_PORT 8083
 VOLUME /tmp
 ADD target/libs/stub-runner-boot.jar stub-runner-boot.jar
 ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/stub-runner-boot.jar"]

docker/spring-cloud-contract-stub-runner-docker/sdkman.config

@@ -0,0 +1,8 @@
+# make gvm non-interactive, great for CI environments
+sdkman_auto_answer=true
+
+# don't prompt user to selfupdate on new shell
+sdkman_suggestive_selfupdate=false
+
+# don't perform automatic selfupdates
+sdkman_auto_selfupdate=false

docker/spring-cloud-contract-stub-runner-docker/sdkman/sdkman-exec.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# A quick wrapper to source the gvm env and run a command
+# This is used to run sdkman in Dockerfile RUN commands
+# since the RUN commands does not use interactive shells
+
+[[ -s "/root/.sdkman/bin/sdkman-init.sh" ]] && source "/root/.sdkman/bin/sdkman-init.sh" && exec "$@"

docker/spring-cloud-contract-stub-runner-docker/sdkman/sdkman-wrapper.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# A quick wrapper to source the gvm env and run it
+# This is used to run gvm in Dockerfile RUN commands
+# since the RUN commands does not use interactive shells
+
+[[ -s "/root/.sdkman/bin/sdkman-init.sh" ]] && source "/root/.sdkman/bin/sdkman-init.sh" && sdk $@