diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 864659a..f9293da 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -53,6 +53,8 @@ build:docker:
   needs:
     - job: build:java
       artifacts: true
+  variables:
+    NACOS_SENTINEL_JAVA_OPTS: -Xms256m -Xmx512m
   before_script:
     - echo "{\"auths\":{\"https://index.docker.io/v1/\":{\"auth\":\"$(printf "%s:%s" "${DOCKER_USERNAME}" "${DOCKER_PASSWORD}" | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
   script:
@@ -68,6 +70,7 @@ build:docker:
       --build-arg CI_SERVER_URL=${CI_SERVER_URL}
       --build-arg CI_PIPELINE_ID=${CI_PIPELINE_ID}
       --build-arg CI_JOB_ID=${CI_JOB_ID}
+      --build-arg NACOS_SENTINEL_JAVA_OPTS="${NACOS_SENTINEL_JAVA_OPTS}"
       --build-arg GROUP_ID=${GROUP_ID}
       --build-arg ARTIFACT_ID=${ARTIFACT_ID}
       --build-arg VERSION=${VERSION}
diff --git a/Dockerfile b/Dockerfile
index ea24886..a4fc0e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ WORKDIR /home
 ARG GROUP_ID=${GROUP_ID}
 ARG ARTIFACT_ID=${ARTIFACT_ID}
 ARG VERSION=${VERSION}
+ARG NACOS_SENTINEL_JAVA_OPTS=${NACOS_SENTINEL_JAVA_OPTS}
 ARG CI_SERVER_URL=${CI_SERVER_URL}
 ARG CI_PIPELINE_ID=${CI_PIPELINE_ID}
 ARG CI_JOB_ID=${CI_JOB_ID}
@@ -12,6 +13,7 @@ ARG CI_JOB_ID=${CI_JOB_ID}
 RUN printf "GROUP_ID: %s\n" "$GROUP_ID" \
     && printf "ARTIFACT_ID: %s\n" "$ARTIFACT_ID" \
     && printf "VERSION: %s\n" "$VERSION" \
+    && printf "NACOS_SENTINEL_JAVA_OPTS: %s\n" "$NACOS_SENTINEL_JAVA_OPTS" \
     && printf "CI_PIPELINE_ID: %s\n" "$CI_PIPELINE_ID" \
     && printf "CI_JOB_ID: %s\n" "$CI_JOB_ID"
 
@@ -24,8 +26,9 @@ ENV TZ=Asia/Shanghai \
     GROUP_ID=${GROUP_ID} \
     ARTIFACT_ID=${ARTIFACT_ID} \
     VERSION=${VERSION} \
+    NACOS_SENTINEL_JAVA_OPTS=${NACOS_SENTINEL_JAVA_OPTS} \
     CI_SERVER_URL=${CI_SERVER_URL} \
     CI_PIPELINE_ID=${CI_PIPELINE_ID} \
     CI_JOB_ID=${CI_JOB_ID}
 
-CMD java -jar /home/app.jar
+CMD java $NACOS_SENTINEL_JAVA_OPTS -jar /home/app.jar
diff --git a/README.md b/README.md
index 126dc0f..35f1dc1 100644
--- a/README.md
+++ b/README.md
@@ -130,17 +130,20 @@
 
 ## 使用说明
 
+- [docker 镜像](https://hub.docker.com/r/xuxiaoweicomcn/nacos-sentinel)
+
 ### 环境变量
 
-| 环境变量名称                                 | 默认值            | 说明                                                     |
-|----------------------------------------|----------------|--------------------------------------------------------|
-| NACOS_SENTINEL_SERVER_PORT             | 8080           | 端口                                                     |
-| NACOS_SENTINEL_SPRING_APPLICATION_NAME | nacos-sentinel | 项目名称，日志文件名称                                            |
-| NACOS_SENTINEL_DISCOVERY_SERVER_ADDR   | 127.0.0.1:8848 | Nacos 注册中心地址                                           |   
-| NACOS_SENTINEL_DISCOVERY_NAMESPACE     | public         | Nacos 注册中心命名空间                                         |
-| NACOS_SENTINEL_LOGS_FOLDER             | /logs          | 日志文件夹前缀                                                |   
-| NACOS_SENTINEL_LOGS_MAX_FILE_SIZE      | 20MB           | 日志文件压缩阈值大小，类型：`org.springframework.util.unit.DataSize` |   
-| NACOS_SENTINEL_LOGS_MAX_HISTORY        | 365            | 日志保留日期，单位：天                                            |
+| 环境变量名称                                 | 默认值               | 说明                                                          |
+|----------------------------------------|-------------------|-------------------------------------------------------------|
+| NACOS_SENTINEL_SERVER_PORT             | 8080              | 端口                                                          |
+| NACOS_SENTINEL_SPRING_APPLICATION_NAME | nacos-sentinel    | 项目名称，日志文件名称                                                 |
+| NACOS_SENTINEL_DISCOVERY_SERVER_ADDR   | 127.0.0.1:8848    | Nacos 注册中心地址                                                |   
+| NACOS_SENTINEL_DISCOVERY_NAMESPACE     | public            | Nacos 注册中心命名空间                                              |
+| NACOS_SENTINEL_LOGS_FOLDER             | /logs             | 日志文件夹前缀                                                     |   
+| NACOS_SENTINEL_LOGS_MAX_FILE_SIZE      | 20MB              | 日志文件压缩阈值大小，类型：`org.springframework.util.unit.DataSize`      |   
+| NACOS_SENTINEL_LOGS_MAX_HISTORY        | 365               | 日志保留日期，单位：天                                                 |
+| NACOS_SENTINEL_JAVA_OPTS               | -Xms256m -Xmx512m | 仅 docker 镜像生效。JVM堆的初始内存大小为256兆字节（MB），JVM堆的最大内存大小为512兆字节（MB） |
 
 ## [代码格式规范 spring-javaformat](https://github.com/spring-io/spring-javaformat)