https://github.com/alibaba/Sentinel/wiki/%E5%9C%A8%E7%94%9F%E4%BA%A7%E7%8E%AF%E5%A2%83%E4%B8%AD%E4%BD%BF%E7%94
%A8-Sentinel
https://github.com/Netflix/Hystrix

java -Dserver.port=8080 -Dcsp.sentinel.dashboard.server=localhost:8080 -Dproject.name=sentinel-dashboard -jar
sentinel-dashboard.jar

#需要做主机名解析，否则可能会解析到互联网IP
[root@ubuntu2404 ~]#cat /etc/hosts
10.0.0.101 ubuntu2404.wang.org sentinel.wang.org

#安装JDK8或以上版本
[root@ubuntu2404 ~]#apt update && apt -y install openjdk-21-jdk openjdk-17-jdk openjdk-11-jdk openjdk-8-jdk

#指定Sentinel版本
[root@ubuntu2404 ~]#SENTINEL_VERSION=1.8.9

#下载官方
[root@ubuntu2404 ~]#wget https://github.com/alibaba/Sentinel/releases/download/${SENTINEL_VERSION}/sentinel-dashboard-${SENTINEL_VERSION}.jar

#下载加速镜像
[root@ubuntu2404 ~]#wget https://githubfast.com/alibaba/Sentinel/releases/download/${SENTINEL_VERSION}/sentinel-dashboard-${SENTINEL_VERSION}.jar

#启动Sentinel控制台
[root@ubuntu2404 ~]#java -Dserver.port=8080 -Dcsp.sentinel.dashboard.server=localhost:8080 -Dproject.name=sentinel-dashboard -jar sentinel-dashboard-${SENTINEL_VERSION}.jar

#浏览器访问
http://sentinel.wang.org:8080
#默认账号密码：sentinel / sentinel

#!/bin/bash

#支持在线和离线安装
#注意：从国内在线下载可能会失败，建议离线安装

SENTINEL_VERSION=1.8.6
#SENTINEL_VERSION=1.8.0
SENTINEL_FILE=sentinel-dashboard-${SENTINEL_VERSION}.jar
GITHUB_MIRROR=https://mirror.ghproxy.com/
SENTINEL_URL=${GITHUB_MIRROR}https://github.com/alibaba/Sentinel/releases/download/${SENTINEL_VERSION}/${SENTINEL_FILE}
INSTALL_DIR=/usr/local/sentinel
HOST=`hostname -I|awk '{print $1}'`

. /etc/os-release

color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$1" && $MOVE_TO_COL
    echo -n "["
    if [ $2 = "success" -o $2 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $" OK "
    elif [ $2 = "failure" -o $2 = "1" ] ;then
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo
}

install_jdk() {
    java -version &>/dev/null && { color "JDK 已安装!" 1 ; return; }
    if command -v yum &>/dev/null ; then
        yum -y install java-1.8.0-openjdk-devel || { color "安装JDK失败!" 1; exit 1; }
    elif command -v apt &>/dev/null ; then
        apt update
        apt install openjdk-8-jdk -y || { color "安装JDK失败!" 1; exit 1; }
    else
        color "不支持当前操作系统!" 1
        exit 1
    fi
    java -version && { color "安装 JDK 完成!" 0 ; } || { color "安装JDK失败!" 1; exit 1; }
}

install_sentinel() {
    mkdir -p ${INSTALL_DIR}/bin/
    if [ -f ${SENTINEL_FILE} ] ;then
        cp ${SENTINEL_FILE} ${INSTALL_DIR}
    else
        wget -P ${INSTALL_DIR} --no-check-certificate ${SENTINEL_URL} || { color  "下载失败!" 1 ;exit 1; }
    fi

    cat > ${INSTALL_DIR}/bin/startup.sh <<EOF
#!/bin/bash
nohup java -Dserver.port=8080 -Dcsp.sentinel.dashboard.server=localhost:8080 -Dproject.name=sentinel-dashboard -jar ${INSTALL_DIR}/sentinel-dashboard-${SENTINEL_VERSION}.jar &
EOF

    chmod +x ${INSTALL_DIR}/bin/startup.sh

    cat > /lib/systemd/system/sentinel.service <<EOF
[Unit]
Description=sentinel.service
After=network.target

[Service]
Type=forking
ExecStart=${INSTALL_DIR}/bin/startup.sh

[Install]
WantedBy=multi-user.target
EOF

    systemctl daemon-reload
    systemctl enable --now sentinel.service
}

start_sentinel () {
    systemctl is-active sentinel.service
    if [ $? -eq 0 ] ;then
        color "sentinel 安装成功!" 0
        echo "-------------------------------------------------------------------"
        echo -e "请访问链接: \E[32;1mhttp://$HOST:8080/\E[0m"
        echo -e "用户/密码: \E[32;1msentinel/sentinel\E[0m"
    else
        color "sentinel 安装失败!" 1
        exit 1
    fi
}

install_jdk
install_sentinel
start_sentinel

docker run --name sentinel -d -p 8858:8858 bladex/sentinel-dashboard:tagname#默认用户名和密码都是sentinel

[root@ubuntu2404 ~]#apt update && apt -y install docker.io 
[root@ubuntu2404 ~]#docker pull bladex/sentinel-dashboard:latest
[root@ubuntu2404 ~]#docker images
REPOSITORY                 TAG       IMAGE ID       CREATED       SIZE
bladex/sentinel-dashboard   latest   aa398704ebd3   3 years ago   147MB
#启动Sentinel-dashboard，注意：版本不同，端口不同
[root@ubuntu2404 ~]#docker run --name sentinel -d -p 8080:8080 -p 8719:8719 registry.cnbeijing.aliyuncs.com/wangxiaochun/sentinel-dashboard:1.8.8
[root@ubuntu2404 ~]#docker run --name sentinel -d -p 8080:8858 -p 8719:8719 registry.cnbeijing.aliyuncs.com/wangxiaochun/sentinel-dashboard:1.8.9
[root@ubuntu2404 ~]#docker run --name sentinel -d -p 8080:8858 -p 8719:8719 bladex/sentinel-dashboard
[root@ubuntu2404 ~]#docker ps
CONTAINER ID   IMAGE                       COMMAND                 CREATED       STATUS       PORTS         
                                                                        NAMES
812ece7071f2   bladex/sentinel-dashboard   "java -Djava.securit…"   1 second ago   Up 1 second   0.0.0.0:8719-
>8719/tcp, :::8719->8719/tcp, 0.0.0.0:8858->8858/tcp, :::8858->8858/tcp   sentinel
#浏览器使用默认用户名和密码sentinel登录访问
http://sentinel.wang.org:8858

version: "3"
services:
  sentinel:
    image: bladex/sentinel-dashboard:latest
    container_name: sentinel
    restart: always
    ports:
      - 8858:8858
      - 8719:8719
    networks:
      - sentinel-net

networks:
  sentinel-net:

[root@ubuntu2404 sentinel]#docker-compose up -d

version: "2"
services:
  sentinel:
    image: bladex/sentinel-dashboard:latest
    container_name: sentinel
    restart: always
    networks:
      macvlan100:
        ipv4_address: 192.168.100.100

  nacos:
    image: nacos/nacos-server:v2.2.1-slim
    container_name: nacos
    restart: always
    environment:
      - PREFER_HOST_MODE=hostname
      - MODE=standalone
      - SPRING_DATASOURCE_PLATFORM=mysql
      - MYSQL_SERVICE_HOST=192.168.100.102
      - MYSQL_SERVICE_DB_NAME=nacos
      - MYSQL_SERVICE_PORT=3306
      - MYSQL_SERVICE_USER=nacos
      - MYSQL_SERVICE_PASSWORD=nacos
      - MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true
      - NACOS_AUTH_IDENTITY_KEY=2222
      - NACOS_AUTH_IDENTITY_VALUE=2xxx
      - NACOS_AUTH_TOKEN=SecretKey012345678901234567890123456789012345678901234567890123456789
    depends_on:
      - mysql
    networks:
      macvlan100:
        ipv4_address: 192.168.100.101

  mysql:
    container_name: mysql
    image: mysql:8
    volumes:
      - ./sql:/docker-entrypoint-initdb.d
    restart: always
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=nacos
      - MYSQL_USER=nacos
      - MYSQL_PASSWORD=nacos
    networks:
      macvlan100:
        ipv4_address: 192.168.100.102

networks:
  macvlan100:
    driver: macvlan
    driver_opts:
      parent: eth0
    ipam:
      driver: default
      config:
        - subnet: 192.168.100.0/24
          ip_range: 192.168.100.0/24
          gateway: 192.168.100.1

[root@ubuntu2404 sentinel-nacos]#docker-compose up -d

[root@ubuntu2404 ~]#docker ps
CONTAINER ID   IMAGE                               COMMAND                  CREATED          STATUS         PORTS     NAMES
205177cd6e67   nacos/nacos-server:v221.1-slim      "bin/docker-startup.…"   17 seconds ago   Up 15 seconds            nacos
322095462d5f   bladex/sentinel-dashboard:latest    "java -Djava.securit…"   17 seconds ago   Up 16 seconds            sentinel
7b67f782ba9a   mysql:8                             "docker-entrypoint.s…"   17 seconds ago   Up 16 seconds            mysql

<!-- https://mvnrepository.com/artifact/com.alibaba.cloud/spring-cloud-starter-alibaba-sentinel -->
<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
    <version>2022.0.0.0</version>
</dependency>

<!-- 客户端与 Sentinel 控制台通信依赖 -->
<dependency>
    <groupId>com.alibaba.csp</groupId>
    <artifactId>sentinel-transport-simple-http</artifactId>
    <version>1.8.6</version>
</dependency>

[root@ubuntu2404 sentinel-sample]#java -Dserver.port=8080 -
Dcsp.sentinel.dashboard.server=sentinel.wang.org:8080 -Dproject.name=sentinel-sample -jar target/sentinelsample-0.0.1-SNAPSHOT.jar 

[root@ubuntu2404 ~]#ss -ntlp |grep java
LISTEN 0      100               *:8719           *:*   users:(("java",pid=6121,fd=11))          
LISTEN 0      100               *:8080           *:*   users:(("java",pid=6121,fd=15))  

[root@ubuntu2404 ~]#tree logs/
logs/
└── csp
    ├── command-center.log.2023-11-28.0
    ├── command-center.log.2023-11-28.0.lck
    ├── sentinel-record.log.2023-11-28.0
    ├── sentinel-record.log.2023-11-28.0.lck
    ├── sentinel-sample-metrics.log.2023-11-28
    └── sentinel-sample-metrics.log.2023-11-28.idx

1 directory, 6 files

[root@ubuntu2404 ~]#tail -f logs/csp/sentinel-record.log.2023-11-28.0
2023-11-28 16:29:43.104 INFO [ParamFlowRuleManager] Parameter flow rules received: {}
2023-11-28 16:29:43.106 INFO [DegradeRuleManager] Degrade rules loaded: {}
2023-11-28 16:29:43.106 WARNING No SPI configuration file, filename=META-INF/services/com.alibaba.csp.sentinel.metric.extension.MetricExtension, classloader=org.springframework.boot.loader.LaunchedURLClassLoader@4f3f5b24
2023-11-28 16:29:43.107 INFO [MetricExtensionProvider] No existing MetricExtension found
2023-11-28 16:29:43.127 INFO Add child <sayHello> to node </hello/{name}>
2023-11-28 16:29:44.308 INFO [MetricWriter] New metric file created: /root/logs/csp/sentinel-sample-metrics.log.2023-11-28
2023-11-28 16:29:44.308 INFO [MetricWriter] New metric index file created: /root/logs/csp/sentinel-sample-metrics.log.2023-11-28.idx
2023-11-28 16:30:34.825 INFO Receiving rule change (type: flow): [{"clusterConfig":{"acquireRefuseStrategy":0,"clientOfflineTime":2000,"fallbackToLocalWhenFail":true,"resourceTimeout":2000,"resourceTimeoutStrategy":0,"sampleCount":10,"strategy":0,"thresholdType":0,"windowIntervalMs":1000},"clusterMode":false,"controlBehavior":0,"count":1.0,"grade":1,"limitApp":"default","maxQueueingTimeMs":500,"resource":"/hello/{name}","strategy":0,"warmUpPeriodSec":10}]
2023-11-28 16:30:34.844 INFO [DynamicSentinelProperty] Config will be updated to: [FlowRule{resource=/hello/{name}, limitApp=default, grade=1, count=1.0, strategy=0, refResource=null, controlBehavior=0, warmUpPeriodSec=10, maxQueueingTimeMs=500, clusterMode=false, clusterConfig=ClusterFlowConfig{flowId=null, thresholdType=0, fallbackToLocalWhenFail=true, strategy=0, sampleCount=10, windowIntervalMs=1000, resourceTimeout=2000, resourceTimeoutStrategy=0, acquireRefuseStrategy=0, clientOfflineTime=2000}, controller=null}]
2023-11-28 16:30:34.845 INFO [FlowRuleManager] Flow rules received: {/hello/{name}=[FlowRule{resource=/hello/{name}, limitApp=default, grade=1, count=1.0, strategy=0, refResource=null, controlBehavior=0, warmUpPeriodSec=10, maxQueueingTimeMs=500, clusterMode=false, clusterConfig=ClusterFlowConfig{flowId=null, thresholdType=0, fallbackToLocalWhenFail=true, strategy=0, sampleCount=10, windowIntervalMs=1000, resourceTimeout=2000, resourceTimeoutStrategy=0, acquireRefuseStrategy=0, clientOfflineTime=2000}, controller=com.alibaba.csp.sentinel.slots.block.flow.controller.DefaultController@af532d2}]}

[root@ubuntu2404 ~]#tail -f logs/csp/sentinel-sample-metrics.log.2023-11-28
1701160183000|2023-11-28 16:29:43|sayHello|1|0|1|0|1|0|0|0
1701160183000|2023-11-28 16:29:43|/hello/{name}|1|0|1|0|59|0|0|1
1701160183000|2023-11-28 16:29:43|__total_inbound_traffic__|1|0|1|0|59|0|0|0
1701160310000|2023-11-28 16:31:50|sayHello|1|0|1|0|1|0|0|0
1701160310000|2023-11-28 16:31:50|/hello/{name}|1|0|1|0|3|0|0|1
1701160310000|2023-11-28 16:31:50|__total_inbound_traffic__|1|0|1|0|3|0|0|0
1701160311000|2023-11-28 16:31:51|/hello/{name}|0|1|0|0|0|0|0|1
1701160311000|2023-11-28 16:31:51|__total_inbound_traffic__|0|1|0|0|0|0|0|0