Merge pull request #1358 from vorburger/issue-304_s2i-native

Native S2I Builder image

docker/centos-graal-maven-s2i/Dockerfile

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+# [Quarkus.io](http://quarkus.io) *native* S2I builder
+# Original Author: Michael Vorburger.ch
+
+# This part is heavily inspired by ../centos-graal/Dockerfile
+FROM centos:latest
+
+ARG GRAAL_VERSION=1.0.0-rc13
+ARG MAVEN_VERSION=3.6.0
+
+ARG GRAAL_CE_URL=https://github.com/oracle/graal/releases/download/vm-${GRAAL_VERSION}/graalvm-ce-${GRAAL_VERSION}-linux-amd64.tar.gz
+ARG MAVEN_URL=https://archive.apache.org/dist/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz
+
+ENV JAVA_HOME=/opt/graalvm
+ENV PATH=$PATH:$JAVA_HOME/bin
+ENV GRAALVM_HOME=/opt/graalvm
+ENV QUARKUS_HOME=/home/quarkus
+
+RUN  yum update -y && \
+	 yum install -y --setopt=skip_missing_names_on_install=False \
+     tar gzip gcc glibc-devel zlib-devel curl && \
+	 mkdir -p /opt/graalvm && \
+	 cd /opt/graalvm && \
+	 curl -fsSL $GRAAL_CE_URL | tar -xzC /opt/graalvm --strip-components=1 && \
+
+# This part is inspired by ../centos-graal-maven/Dockerfile and fabric8io-images/s2i
+
+    mkdir -p /usr/share/maven && \
+    curl -fsSL ${MAVEN_URL} | tar -xzC /usr/share/maven --strip-components=1 && \
+    ln -s /usr/share/maven/bin/mvn /usr/bin/mvn && \
+
+    adduser -u 1001 -g 0 quarkus --home-dir ${QUARKUS_HOME} && \
+    chown -R 1001:0 ${QUARKUS_HOME} && \
+    chmod -R ug+rwX ${QUARKUS_HOME}
+
+ENV MAVEN_HOME /usr/share/maven
+ENV MAVEN_CONFIG ${QUARKUS_HOME}/.m2
+ENV MAVEN_OPTS="-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
+
+# This part is firmly inspired by fabric8io-images/s2i
+
+LABEL io.openshift.s2i.scripts-url="image:///usr/local/s2i" \
+      io.openshift.s2i.destination="/tmp" \
+
+      io.k8s.description="Quarkus.io S2I image for building Kubernetes Native Java GraalVM applications and running its Native Executables" \
+      io.k8s.display-name="Quarkus.io S2I (GraalVM Native)" \
+      io.openshift.tags="builder,java,quarkus,native"
+
+# S2I scripts + README
+COPY s2i /usr/local/s2i
+RUN chmod 755 /usr/local/s2i/*
+ADD README.md /usr/local/s2i/usage.txt
+
+ENV PATH=$PATH:"/usr/local/s2i"
+
+USER 1001
+
+EXPOSE 8080
+
+# Use the run script as default since we are working as an hybrid image which can be
+# used directly to. (If we were a plain s2i image we would print the usage info here.)
+CMD [ "/usr/local/s2i/run" ]

docker/centos-graal-maven-s2i/README.md

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+# [Quarkus.io](http://quarkus.io) GraalVM Native S2I
+
+## OpenShift
+
+### Minishift 8 GB Set-Up recommendation
+
+    minishift profile delete quarkus-s2i-native
+    minishift profile set quarkus-s2i-native
+    minishift config set memory 8192
+    minishift start
+
+### OpenShift Build
+
+    oc new-build https://github.com/quarkusio/quarkus.git --context-dir=docker/centos-graal-maven-s2i --name quarkus-native-s2i
+    oc logs -f bc/quarkus-native-s2i
+
+### OpenShift Use
+
+    oc new-app quarkus-native-s2i~https://github.com/quarkusio/quarkus-quickstarts --context-dir=getting-started --name=getting-started-native
+    oc logs -f bc/getting-started-native
+    oc expose svc/getting-started-native
+
+Note that GraalVM-based native build are more memory & CPU intensive than regular pure Java builds.
+[By default, builds are completed by pods using unbound resources, such as memory and CPU](https://docs.openshift.com/container-platform/3.11/dev_guide/builds/advanced_build_operations.html),
+but note that [your OpenShift Project may have limit ranges defined](https://docs.openshift.com/container-platform/3.11/admin_guide/limits.html#admin-guide-limits).
+
+Testing indicates that the "hello, world" getting-started demo application builds in around 2 minutes on typical hardware when the build is given 4 GB of RAM and 4 (virtual) CPUs for concurrency. You therefore may need to increase the respective limits for OpenShift's S2I build containers like so:
+
+    apiVersion: "v1"
+    kind: "BuildConfig"
+    metadata:
+      name: "getting-started-native"
+    spec:
+      resources:
+        limits:
+          cpu: '4'
+          memory: 4Gi
+
+The following `oc patch` command does this:
+
+    oc patch bc/getting-started-native -p '{"spec":{"resources":{"limits":{"cpu":"4", "memory":"4Gi"}}}}'
+
+## Locally (only for testing)
+
+### Local Build
+
+    docker build . -t quarkus-native-s2i
+
+### Local use
+
+    sudo dnf install source-to-image
+
+    s2i build --copy ../../../quarkus-quickstarts/getting-started quarkus-native-s2i getting-started-native
+
+    docker run --rm -it -p 8080:8080 getting-started-native
+
+    curl http://localhost:8080/hello/greeting/quarkus

docker/centos-graal-maven-s2i/s2i/assemble

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+#!/bin/sh
+
+# This POC script is based on the openshift/source-to-image project documentation,
+# and loosely inspired by fabric8io-images/s2i's assemble script, but **MUCH** simplified;
+# a TODO future PRODUCTION version of this would probably want to re-use that script...
+
+set -ex
+
+cd /tmp/src/
+mvn package -Pnative -e -B \
+    -DskipTests -Dmaven.javadoc.skip=true -Dmaven.site.skip=true -Dmaven.source.skip=true \
+    -Djacoco.skip=true -Dcheckstyle.skip=true -Dfindbugs.skip=true -Dpmd.skip=true -Dfabric8.skip=true
+cp -v target/*-runner ${QUARKUS_HOME}
+

docker/centos-graal-maven-s2i/s2i/run

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+#!/bin/sh
+
+# This POC script is (intentionally) overly trivial.
+# a TODO future PRODUCTION version of this would probably want tomake it possible to
+# e.g. pass additional parameters to the executable, as does fabric8io-images/s2i's run script.
+
+${QUARKUS_HOME}/*-runner -Dquarkus.http.host=0.0.0.0