[ISSUE #4670] Support Java 11 StartUp and Docker deployment (#4675)

* Switch jdk8 to jre11

* Locate Java executable, check version and apply distinguished vm options
https://docs.oracle.com/javase/9/tools/java.htm#GUID-BE93ABDC-999C-4CB5-A88B-1994AAAC74D5__CONVERTGCLOGGINGFLAGSTOXLOG-A5046BD1

* Streamline further

* minor: Adjust port seq

* minor: Streamline a little

* Redirect GC logs to log file instead of stdout

* Streamline EVENTMESH_LOG_HOME & XLOG_PARAM

* Use multi-stage compiled JRE8 env by default

* fix: get pid correctly in docker

* Generate pid file exactly under /bin

* exec builder_8 exactly after builder_11

* Use JDK instead of JRE

* Rename dockerfile

.github/workflows/build.yaml

@@ -45,5 +45,5 @@ jobs:
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          file: ./docker/Dockerfile
+          file: ./docker/Dockerfile_jdk8
           context: ./

docker/Dockerfile → docker/Dockerfile_jdk11

@@ -16,20 +16,19 @@
 # specific language governing permissions and limitations
 # under the License.
 #
-FROM openjdk:8-jdk as builder
+FROM openjdk:11-jdk as builder
 WORKDIR /build
 COPY . .
 RUN ./gradlew clean build jar dist --parallel --daemon
 RUN ./gradlew installPlugin
 
-FROM openjdk:8-jdk
-RUN apt-get update && apt-get install -y locales
+FROM openjdk:11-jdk
+RUN apt-get update && apt-get install -y locales procps
 RUN localedef -i en_US -f UTF-8 en_US.UTF-8 --quiet
 WORKDIR /data/app/eventmesh
 COPY --from=builder /build/dist ./
 
-EXPOSE 10106 
-EXPOSE 10205 10105 10000
+EXPOSE 10000 10105 10106 10205
 
 ENV DOCKER true
 ENV EVENTMESH_HOME /data/app/eventmesh

docker/Dockerfile_jdk8

@@ -0,0 +1,43 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+FROM openjdk:11-jdk as builder_11
+WORKDIR /build
+COPY . .
+RUN ./gradlew clean generateGrammarSource --parallel --daemon
+
+FROM openjdk:8-jdk as builder_8
+WORKDIR /build
+COPY --from=builder_11 /build ./
+RUN ./gradlew clean build jar dist -x spotlessJava -x generateGrammarSource --parallel --daemon
+RUN ./gradlew installPlugin
+
+FROM openjdk:8-jdk
+RUN apt-get update && apt-get install -y locales procps
+RUN localedef -i en_US -f UTF-8 en_US.UTF-8 --quiet
+WORKDIR /data/app/eventmesh
+COPY --from=builder_8 /build/dist ./
+
+EXPOSE 10000 10105 10106 10205
+
+ENV DOCKER true
+ENV EVENTMESH_HOME /data/app/eventmesh
+ENV EVENTMESH_LOG_HOME /data/app/eventmesh/logs
+ENV CONFPATH /data/app/eventmesh/conf
+
+CMD ["bash", "bin/start.sh"]

eventmesh-runtime/bin/start.sh

@@ -21,24 +21,30 @@
 # Java Environment Setting
 #===========================================================================================
 set -e
-#Server configuration may be inconsistent, add these configurations to avoid garbled code problems
+# Server configuration may be inconsistent, add these configurations to avoid garbled code problems
 export LANG=en_US.UTF-8
 export LC_CTYPE=en_US.UTF-8
 export LC_ALL=en_US.UTF-8
 
-TMP_JAVA_HOME="/nemo/jdk1.8.0_152"
+TMP_JAVA_HOME="/customize/your/java/home/here"
 
-#detect operating system.
+# Detect operating system.
 OS=$(uname)
 
-function is_java8 {
+function is_java8_or_11 {
         local _java="$1"
         [[ -x "$_java" ]] || return 1
-        [[ "$("$_java" -version 2>&1)" =~ 'java version "1.8' || "$("$_java" -version 2>&1)" =~ 'openjdk version "1.8' ]] || return 2
+        [[ "$("$_java" -version 2>&1)" =~ 'java version "1.8' || "$("$_java" -version 2>&1)" =~ 'openjdk version "1.8' || "$("$_java" -version 2>&1)" =~ 'java version "11' || "$("$_java" -version 2>&1)" =~ 'openjdk version "11' ]] || return 2
         return 0
 }
 
-#0(not running),  1(is running)
+function extract_java_version {
+    local _java="$1"
+    local version=$("$_java" -version 2>&1 | awk -F '"' '/version/ {print $2}' | awk -F '.' '{if ($1 == 1 && $2 == 8) print "8"; else if ($1 == 11) print "11"; else print "unknown"}')
+    echo "$version"
+}
+
+# 0(not running),  1(is running)
 #function is_proxyRunning {
 #        local _pid="$1"
 #        local pid=`ps ax | grep -i 'org.apache.eventmesh.runtime.boot.EventMeshStartup' |grep java | grep -v grep | awk '{print $1}'|grep $_pid`
@@ -55,7 +61,7 @@ function get_pid {
 		ppid=$(cat ${EVENTMESH_HOME}/bin/pid.file)
 		# If the process does not exist, it indicates that the previous process terminated abnormally.
     if [ ! -d /proc/$ppid ]; then
-      # Remove the residual file
+      # Remove the residual file.
       rm ${EVENTMESH_HOME}/bin/pid.file
       echo -e "ERROR\t EventMesh process had already terminated unexpectedly before, please check log output."
       ppid=""
@@ -68,32 +74,37 @@ function get_pid {
 			# Known problem: grep Java may not be able to accurately identify Java processes
 			ppid=$(/bin/ps -o user,pid,command | grep "java" | grep -i "org.apache.eventmesh.runtime.boot.EventMeshStartup" | grep -Ev "^root" |awk -F ' ' {'print $2'})
 		else
-			# It is required to identify the process as accurately as possible on Linux
-			ppid=$(ps -C java -o user,pid,command --cols 99999 | grep -w $EVENTMESH_HOME | grep -i "org.apache.eventmesh.runtime.boot.EventMeshStartup" | grep -Ev "^root" |awk -F ' ' {'print $2'})
+		  if [ $DOCKER ]; then
+		    # No need to exclude root user in Docker containers.
+		    ppid=$(ps -C java -o user,pid,command --cols 99999 | grep -w $EVENTMESH_HOME | grep -i "org.apache.eventmesh.runtime.boot.EventMeshStartup" | awk -F ' ' {'print $2'})
+		  else
+        # It is required to identify the process as accurately as possible on Linux.
+        ppid=$(ps -C java -o user,pid,command --cols 99999 | grep -w $EVENTMESH_HOME | grep -i "org.apache.eventmesh.runtime.boot.EventMeshStartup" | grep -Ev "^root" | awk -F ' ' {'print $2'})
+      fi
 		fi
 	fi
 	echo "$ppid";
 }
 
+#===========================================================================================
+# Locate Java Executable
+#===========================================================================================
 
-if [[ -d "$TMP_JAVA_HOME" ]] && is_java8 "$TMP_JAVA_HOME/bin/java"; then
+if [[ -d "$TMP_JAVA_HOME" ]] && is_java8_or_11 "$TMP_JAVA_HOME/bin/java"; then
         JAVA="$TMP_JAVA_HOME/bin/java"
-elif [[ -d "$JAVA_HOME" ]] && is_java8 "$JAVA_HOME/bin/java"; then
+        JAVA_VERSION=$(extract_java_version "$TMP_JAVA_HOME/bin/java")
+elif [[ -d "$JAVA_HOME" ]] && is_java8_or_11 "$JAVA_HOME/bin/java"; then
         JAVA="$JAVA_HOME/bin/java"
-elif  is_java8 "/nemo/jdk8/bin/java"; then
-    JAVA="/nemo/jdk8/bin/java";
-elif  is_java8 "/nemo/jdk1.8/bin/java"; then
-    JAVA="/nemo/jdk1.8/bin/java";
-elif  is_java8 "/nemo/jdk/bin/java"; then
-    JAVA="/nemo/jdk/bin/java";
-elif is_java8 "$(which java)"; then
+        JAVA_VERSION=$(extract_java_version "$JAVA_HOME/bin/java")
+elif is_java8_or_11 "$(which java)"; then
         JAVA="$(which java)"
+        JAVA_VERSION=$(extract_java_version "$(which java)")
 else
-        echo -e "ERROR\t Java 8 not found, operation abort."
+        echo -e "ERROR\t Java 8 or 11 not found, operation abort."
         exit 9;
 fi
 
-echo "EventMesh use Java location: $JAVA"
+echo "EventMesh using Java version: $JAVA_VERSION, path: $JAVA"
 
 EVENTMESH_HOME=$(cd "$(dirname "$0")/.." && pwd)
 export EVENTMESH_HOME
@@ -123,12 +134,23 @@ export JAVA_HOME
 #elif [ $1 = "dev" ]; then JAVA_OPT="${JAVA_OPT} -server -Xms128M -Xmx256M -Xmn128m -XX:SurvivorRatio=4"
 #fi
 
+GC_LOG_FILE="${EVENTMESH_LOG_HOME}/eventmesh_gc_%p.log"
+
 #JAVA_OPT="${JAVA_OPT} -server -Xms2048M -Xmx4096M -Xmn2048m -XX:SurvivorRatio=4"
 JAVA_OPT=`cat ${EVENTMESH_HOME}/conf/server.env | grep APP_START_JVM_OPTION::: | awk -F ':::' {'print $2'}`
 JAVA_OPT="${JAVA_OPT} -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:G1ReservePercent=25 -XX:InitiatingHeapOccupancyPercent=30 -XX:SoftRefLRUPolicyMSPerMB=0 -XX:SurvivorRatio=8 -XX:MaxGCPauseMillis=50"
-JAVA_OPT="${JAVA_OPT} -verbose:gc -Xloggc:${EVENTMESH_HOME}/logs/eventmesh_gc_%p.log -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintAdaptiveSizePolicy"
-JAVA_OPT="${JAVA_OPT} -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${EVENTMESH_HOME}/logs -XX:ErrorFile=${EVENTMESH_HOME}/logs/hs_err_%p.log"
-JAVA_OPT="${JAVA_OPT} -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=30m"
+JAVA_OPT="${JAVA_OPT} -verbose:gc"
+if [[ "$JAVA_VERSION" == "8" ]]; then
+    # Set JAVA_OPT for Java 8
+    JAVA_OPT="${JAVA_OPT} -Xloggc:${GC_LOG_FILE} -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5 -XX:GCLogFileSize=30m"
+    JAVA_OPT="${JAVA_OPT} -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime -XX:+PrintAdaptiveSizePolicy"
+elif [[ "$JAVA_VERSION" == "11" ]]; then
+    # Set JAVA_OPT for Java 11
+    XLOG_PARAM="time,level,tags:filecount=5,filesize=30m"
+    JAVA_OPT="${JAVA_OPT} -Xlog:gc*:${GC_LOG_FILE}:${XLOG_PARAM}"
+    JAVA_OPT="${JAVA_OPT} -Xlog:safepoint:${GC_LOG_FILE}:${XLOG_PARAM} -Xlog:ergo*=debug:${GC_LOG_FILE}:${XLOG_PARAM}"
+fi
+JAVA_OPT="${JAVA_OPT} -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${EVENTMESH_LOG_HOME} -XX:ErrorFile=${EVENTMESH_LOG_HOME}/hs_err_%p.log"
 JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow"
 JAVA_OPT="${JAVA_OPT} -XX:+AlwaysPreTouch"
 JAVA_OPT="${JAVA_OPT} -XX:MaxDirectMemorySize=8G"
@@ -159,22 +181,20 @@ if [[ $pid == "ERROR"* ]]; then
   echo -e "${pid}"
   exit 9
 fi
-if [ -n "$pid" ];then
+if [ -n "$pid" ]; then
 	echo -e "ERROR\t The server is already running (pid=$pid), there is no need to execute start.sh again."
 	exit 9
 fi
 
 make_logs_dir
 
-echo "Using JDK[$JAVA]" >> ${EVENTMESH_LOG_HOME}/eventmesh.out
-
+echo "Using Java version: $JAVA_VERSION, path: $JAVA" >> ${EVENTMESH_LOG_HOME}/eventmesh.out
 
 EVENTMESH_MAIN=org.apache.eventmesh.runtime.boot.EventMeshStartup
-if [ $DOCKER ]
-then
+if [ $DOCKER ]; then
 	$JAVA $JAVA_OPT -classpath ${EVENTMESH_HOME}/conf:${EVENTMESH_HOME}/apps/*:${EVENTMESH_HOME}/lib/* $EVENTMESH_MAIN >> ${EVENTMESH_LOG_HOME}/eventmesh.out
 else
 	$JAVA $JAVA_OPT -classpath ${EVENTMESH_HOME}/conf:${EVENTMESH_HOME}/apps/*:${EVENTMESH_HOME}/lib/* $EVENTMESH_MAIN >> ${EVENTMESH_LOG_HOME}/eventmesh.out 2>&1 &
-echo $!>pid.file
+echo $!>${EVENTMESH_HOME}/bin/pid.file
 fi
 exit 0