Change the JVM used to OpenJ9

Changes/fixes include:
- Change the image name and labels to reference OpenJ9
- Include a module to remove OpenJDK (HotSpot) 8
  it's installed indirectly as a Maven dependency
- Add a new OpenJ9 11 module and use it in replacement of
  HotSpot OpenJDK 11
- Integrate the OpenJ9 11 binaries package provided by RCM
- Change dist-git branch names to use specific OpenJ9 ones

References: IBMZP-28, JDG-3368, CLOUD-3527, RCM-79651

WARNING: the image might be in a non-buildable state after this commit,
  required changes might be present in future commits.

Author: Osni Oliveira

container.yaml

@@ -4,3 +4,9 @@ platforms:
 
 compose:
   pulp_repos: true
+  packages:
+    - java-11-openj9
+    - java-11-openj9-headless
+    - java-11-openj9-devel
+  signing_intent: release
+  inherit: true

content_sets.yml

@@ -1,3 +1,3 @@
 x86_64:
-  - rhel-server-rhscl-7-rpms
-  - rhel-7-server-rpms
+  - rhel-8-for-x86_64-baseos-rpms
+  - rhel-8-for-x86_64-appstream-rpms

image.yaml

@@ -1,13 +1,13 @@
 schema_version: 1
-name: jboss-datagrid-7/datagrid73-openshift
+name: jboss-datagrid-7/datagrid73-openj9-11-openshift
 version: 1.4
 description: "Red Hat JBoss Data Grid 7.3 for OpenShift container image"
 
 from: rh-osbs/ubi8:8.1-released
 
 labels:
   - name: "com.redhat.component"
-    value: "jboss-datagrid-7-datagrid73-openshift-container"
+    value: "jboss-datagrid-7-datagrid73-openj9-11-openshift-container"
   - name: "org.jboss.product"
     value: "datagrid"
   - name: "org.jboss.product.version"
@@ -27,7 +27,7 @@ labels:
   - name: "io.k8s.description"
     value: "Provides a scalable in-memory distributed database designed for fast access to large volumes of data."
   - name: "io.k8s.display-name"
-    value: "JBoss Data Grid 7.3"
+    value: "JBoss Data Grid 7.3 OpenJ9 11"
   - name: "io.openshift.expose-services"
     value: "8080:http"
   - name: "io.openshift.tags"
@@ -185,8 +185,9 @@ modules:
     - name: common.modules
       path: modules/common
   install:
+    - name: jboss.container.java.rm-openjdk
     - name: jboss.container.openjdk.jdk
-      version: "11"
+      version: "openj9-11"
     - name: datagrid.distribution
     - name: dynamic-resources
     - name: os-eap7-openshift
@@ -203,6 +204,7 @@ modules:
 
 packages:
   content_sets_file: content_sets.yml
+  manager: dnf
   install:
     - hostname
     - openssl
@@ -221,4 +223,4 @@ osbs:
     container_file: container.yaml
   repository:
     name: containers/jboss-datagrid-7
-    branch: jb-datagrid-7.3-openshift-rhel-7
+    branch: jb-datagrid-7.3-openj9-11-openshift-rhel8

modules/common/jboss/container/java/rm-openjdk/configure.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+set -u
+set -e
+
+for pkg in java-1.8.0-openjdk-devel \
+       java-1.8.0-openjdk-headless \
+       java-1.8.0-openjdk; do
+    if rpm -q "$pkg"; then
+        rpm -e --nodeps "$pkg"
+    fi
+done

modules/common/jboss/container/java/rm-openjdk/module.yaml

@@ -0,0 +1,7 @@
+schema_version: 1
+name: jboss.container.java.rm-openjdk
+version: '1.0'
+description: Remove OpenJDK 1.8
+
+execute:
+- script: configure.sh

modules/common/jboss/container/openjdk/jdk/11/configure.sh

@@ -13,6 +13,13 @@ pushd ${ARTIFACTS_DIR}
 cp -pr * /
 popd
 
+# Set this JDK as the alternative in use
+_arch="$(uname -i)"
+alternatives --set java java-11-openjdk.${_arch}
+alternatives --set javac java-11-openjdk.${_arch}
+alternatives --set java_sdk_openjdk java-11-openjdk.${_arch}
+alternatives --set jre_openjdk java-11-openjdk.${_arch}
+
 # As of rhel 7.6, rh-maven35 pulls in jdk8, so we need to remove them
 # XXX: This code should eventually move to the maven module, once layering is fully supported in cekit, as this module
 # would be installed before maven (i.e. there's nothing to remove when this module is installed)

modules/common/jboss/container/openjdk/jdk/openj9-11/artifacts/opt/jboss/container/openjdk/jdk/jvm-options

@@ -0,0 +1,10 @@
+
+#!/bin/sh
+# ==============================================================================
+# JDK specific customizations
+#
+# ==============================================================================
+
+function jvm_specific_diagnostics() {
+    echo ""
+}

modules/common/jboss/container/openjdk/jdk/openj9-11/configure.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+# Configure module
+set -e
+
+SCRIPT_DIR=$(dirname $0)
+ARTIFACTS_DIR=${SCRIPT_DIR}/artifacts
+
+chown -R jboss:root $SCRIPT_DIR
+chmod -R ug+rwX $SCRIPT_DIR
+chmod ug+x ${ARTIFACTS_DIR}/opt/jboss/container/openjdk/jdk/*
+
+pushd ${ARTIFACTS_DIR}
+cp -pr * /
+popd
+
+_arch="$(uname -i)"
+alternatives --set java java-11-openj9.${_arch}
+alternatives --set javac java-11-openj9.${_arch}
+alternatives --set java_sdk_openj9 java-11-openj9.${_arch}
+alternatives --set jre_openj9 java-11-openj9.${_arch}
+
+# Update securerandom.source for quicker starts (must be done after removing jdk 8, or it will hit the wrong files)
+JAVA_SECURITY_FILE=/usr/lib/jvm/java/conf/security/java.security
+SECURERANDOM=securerandom.source
+if grep -q "^$SECURERANDOM=.*" $JAVA_SECURITY_FILE; then
+    sed -i "s|^$SECURERANDOM=.*|$SECURERANDOM=file:/dev/urandom|" $JAVA_SECURITY_FILE
+else
+    echo $SECURERANDOM=file:/dev/urandom >> $JAVA_SECURITY_FILE
+fi

modules/common/jboss/container/openjdk/jdk/openj9-11/module.yaml

@@ -0,0 +1,32 @@
+schema_version: 1
+
+name: "jboss.container.openjdk.jdk"
+description: "Installs the JDK for OpenJ9 11."
+version: "openj9-11"
+
+labels:
+- name: "org.jboss.product"
+  value: "openjdk"
+- name: "org.jboss.product.version"
+  value: "11"
+- name: "org.jboss.product.openjdk.version"
+  value: "11"
+
+envs:
+- name: "JAVA_HOME"
+  value: "/usr/lib/jvm/jre-11-openj9"
+- name: "JAVA_VENDOR"
+  value: "openj9"
+- name: "JAVA_VERSION"
+  value: "11"
+
+packages:
+  install:
+  - java-11-openj9-devel
+
+modules:
+  install:
+  - name: jboss.container.user
+
+execute:
+- script: configure.sh

override-cp.yaml

@@ -1,4 +1,4 @@
 osbs:
   repository:
     name: containers/jboss-datagrid-7
-    branch: jb-datagrid-7.3-openshift-cp-rhel-7
+    branch: jb-datagrid-7.3-openj9-11-openshift-cp-rhel8