Add Dockerfile and build script for Java agent Docker image (#6686)

CHANGES.md

@@ -9,6 +9,7 @@ Release Notes.
 * Update frontend-maven-plugin to 1.11.0, for Download node x64 binary on Apple Silicon.
 * Add E2E test for VM monitoring that metrics from Prometheus node-exporter.
 * Upgrade lombok to 1.18.16.
+* Add Java agent Dockerfile to build Docker image for Java agent.
 
 #### Java Agent
 * Remove invalid mysql configuration in agent.config.

Makefile

@@ -53,7 +53,7 @@ ES_VERSION?=es6
 
 docker: init build.all docker.all
 
-DOCKER_TARGETS:=docker.oap docker.ui
+DOCKER_TARGETS:=docker.oap docker.ui docker.agent
 
 docker.all: $(DOCKER_TARGETS)
 
@@ -81,6 +81,10 @@ docker.ui: $(SW_ROOT)/docker/ui/docker-entrypoint.sh
 docker.ui: $(SW_ROOT)/docker/ui/logback.xml
 		$(DOCKER_RULE)
 
+docker.agent: $(SW_OUT)/apache-skywalking-apm-bin.tar.gz
+docker.agent: $(SW_ROOT)/docker/agent/Dockerfile.agent
+		$(DOCKER_RULE)
+
 
 # $@ is the name of the target
 # $^ the name of the dependencies for the target

docker/agent/Dockerfile.agent

+# 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.
+
+ARG BASE_IMAGE='adoptopenjdk/openjdk8:alpine'
+
+FROM alpine as build
+
+ENV DIST_NAME=apache-skywalking-apm-bin
+
+ADD "$DIST_NAME.tar.gz" /
+
+RUN mv /$DIST_NAME /skywalking
+
+FROM alpine AS cli
+
+WORKDIR /skywalking/bin
+
+ARG CLI_VERSION=0.6.0
+
+ADD https://archive.apache.org/dist/skywalking/cli/${CLI_VERSION}/skywalking-cli-${CLI_VERSION}-bin.tgz /
+RUN tar -zxf /skywalking-cli-${CLI_VERSION}-bin.tgz -C / ; \
+    mv /skywalking-cli-${CLI_VERSION}-bin/bin/swctl-${CLI_VERSION}-linux-amd64 /skywalking/bin/swctl
+
+FROM $BASE_IMAGE
+
+LABEL maintainer="kezhenxu94@apache.org"
+
+ENV JAVA_TOOL_OPTIONS=-javaagent:/skywalking/agent/skywalking-agent.jar
+
+WORKDIR /skywalking
+
+COPY --from=build /skywalking/agent /skywalking/agent
+COPY --from=cli /skywalking/bin/swctl /skywalking/bin