监控系统OPEN-FALCON安装

官方文档

https://book.open-falcon.org/...

安装包下载地址

• 百度网盘地址

链接: https://pan.baidu.com/s/1xLzUzZpAagtJHpnX5SjUiw 提取码: ve3u

环境准备

安装redis

yum install -y mysql-server

安装mysql

yum install -y mysql-server

二进制安装参考

• 创建数据库用户并为用户分配权限

GRANT ALL PRIVILEGES ON *.* TO 'real_user'@'localhost' IDENTIFIED BY 'real_password' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '' WITH GRANT OPTION;

安装git

#查看linux版本信息：
$ cat /etc/redhat-release
#输入命令安装git：
$ yum install git
#等待下载，自动安装完毕，查看git版本
$ git --version

安装GO

• 下载go
• 解压

tar -C /usr/local/ -xzvf go1.13.5.linux-amd64.tar.gz

• 配置环境变量

vim /etc/profile
export GOROOT=/usr/local/go
export GOPATH=/home/bruce/goProject 
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOROOT/bin
export PATH=$PATH:$GOPATH/bin
export FALCON_HOME=/home/work
export WORKSPACE=$FALCON_HOME/open-falcon
source /etc/profile
mkdir -p $WORKSPACE

• 查询安装结果

go version
go version go1.13.5 linux/amd64

安装后台

• 下载open-falcon
• 解压

tar -xzvf open-falcon-v0.2.1.tar.gz -C $WORKSPACE

• 在一台机器上启动所有的后端组件

#首先确认配置文件中数据库账号密码与实际相同，否则需要修改配置文件。
cd $WORKSPACE
grep -Ilr 3306  ./ | xargs -n1 -- sed -i 's/root:/real_user:real_password/g'
#编辑agent采集端配置文件
vim agent/config/cfg.json
{
    "debug": true,
    "hostname": "10.159.42.37",
    "ip": "",
    "plugin": {
        "enabled": false,
        "dir": "./plugin",
        "git": "https://github.com/open-falcon/plugin.git",
        "logs": "./logs"
    },
    "heartbeat": {
        "enabled": true,
        "addr": "10.159.44.248:6030",
        "interval": 60,
        "timeout": 1000
    },
    "transfer": {
        "enabled": true,
        "addrs": [
            "10.159.44.248:8433"
        ],
        "interval": 60,
        "timeout": 1000
    },
    "http": {
        "enabled": true,
        "listen": ":1988",
        "backdoor": false
    },
    "collector": {
        "ifacePrefix": ["eth", "em"],
        "mountPoint": []
    },
    "default_tags": {
    },
    "ignore": {
        "cpu.busy": false,
        "df.bytes.free": false,
        "df.bytes.total": false,
        "df.bytes.used": false,
        "df.bytes.used.percent": false,
        "df.inodes.total": false,
        "df.inodes.free": false,
        "df.inodes.used": false,
        "df.inodes.used.percent": false,
        "mem.memtotal": false,
        "mem.memused": false,
        "mem.memused.percent": false,
        "mem.memfree": false,
        "mem.swaptotal": false,
        "mem.swapused": false,
        "mem.swapfree": false
    }

• 启动

cd $WORKSPACE
./open-falcon start
or
./open-falcon start agent
# 检查所有模块的启动状况
./open-falcon check
# 查看某个模块的日志
./open-falcon monitor agent

• 更多的命令行工具用法

# ./open-falcon [start|stop|restart|check|monitor|reload] module
./open-falcon start agent

./open-falcon check
        falcon-graph         UP           53007
          falcon-hbs         UP           53014
        falcon-judge         UP           53020
     falcon-transfer         UP           53026
       falcon-nodata         UP           53032
   falcon-aggregator         UP           53038
        falcon-agent         UP           53044
      falcon-gateway         UP           53050
          falcon-api         UP           53056
        falcon-alarm         UP           53063

For debugging , You can check $WorkDir/$moduleName/log/logs/xxx.log

• 关闭防火墙

1.使用命令：systemctl status firewalld.service查看防火墙状态
2.执行后可以看到绿色字样标注的“active（running）”，说明防火墙是开启状态
3.使用命令：systemctl stop firewalld.service 关闭运行的防火墙
4.关闭后，使用命令systemctl status firewalld.service查看防火墙状态可以看到，disavtive（dead...
5.前面的方法，一旦重启操作系统，防火墙就自动开启了，该怎么设置才能永久关闭防火墙呢？

部署前端：

建议使用centos7.0以上版本部署，python3版本兼容，如果使用centos6版本，python2版本不兼容。详细使用手册可以参考官网。

• 参考文档

https://book.open-falcon.org/...

• 克隆前端代码

cd $WORKSPACE
git clone https://github.com/open-falcon/dashboard.git

• 安装依赖包

yum install -y python-virtualenv
yum install -y python-devel
yum install -y openldap-devel
yum install -y mysql-devel
yum groupinstall "Development tools"

cd $WORKSPACE/dashboard/
virtualenv ./env

./env/bin/pip install -r pip_requirements.txt -i https://pypi.douban.com/simple

• 修改dashboard配置信息

#其中数据库用户名和密码改一下，还有API服务的访问地址
vim /home/work/open-falcon/dashboard/rrd/config.py
# Falcon+ API
API_ADDR = os.environ.get("API_ADDR","http://10.159.44.248:8080/api/v1")
API_USER = os.environ.get("API_USER","admin")
API_PASS = os.environ.get("API_PASS","password")

# portal database
# TODO: read from api instead of db
PORTAL_DB_HOST = os.environ.get("PORTAL_DB_HOST","10.159.44.248")
PORTAL_DB_PORT = int(os.environ.get("PORTAL_DB_PORT",3306))
PORTAL_DB_USER = os.environ.get("PORTAL_DB_USER","root")
PORTAL_DB_PASS = os.environ.get("PORTAL_DB_PASS","")
PORTAL_DB_NAME = os.environ.get("PORTAL_DB_NAME","falcon_portal")

# alarm database
# TODO: read from api instead of db
ALARM_DB_HOST = os.environ.get("ALARM_DB_HOST","10.159.44.248")
ALARM_DB_PORT = int(os.environ.get("ALARM_DB_PORT",3306))
ALARM_DB_USER = os.environ.get("ALARM_DB_USER","root")
ALARM_DB_PASS = os.environ.get("ALARM_DB_PASS","")
ALARM_DB_NAME = os.environ.get("ALARM_DB_NAME","alarms")

• 启动

#以开发者模式启动
./env/bin/python wsgi.py
open http://127.0.0.1:8081 in your browser.
#生产环境启动
bash control start
open http://127.0.0.1:8081 in your browser.

• 停止

bash control stop

• 查看日志

bash control tail

• 展示

邮件报警

• 编辑ALERM服务配置文件

vim /home/work/open-falcon/alarm/config/cfg.json
#红框位置修改成邮件接收接口地址

#保存退出
wq!

• 重启

cd /home/work/open-falcon
./open-falcon restart alerm

修改报警接口

/**
     * OPEN-FALLCON发送报警邮件
     * @param request
     * @return 消息列表json
     * @throws Exception
     */
    @RequestMapping(value = "/senderFalEmail", method = RequestMethod.POST)
    public @ResponseBody
    BaseRestResponse senderFalEmail(HttpServletRequest request){
        log.info("========进入senderFalEmail Controller");
        String to_addrs = request.getParameter("tos");
        String subject = request.getParameter("subject");
        String content = request.getParameter("content");
        log.info("========进入senderFalEmail Controller==========收件人："+to_addrs+",主题："+subject+",邮件内容:"+content);
        MimeMessage message = mailSender.createMimeMessage();
        try{
            MimeMessageHelper helper = new MimeMessageHelper(message, true,"utf-8");//构造消息helper，第二个参数表明这个消息是multipart类型的
            helper.setFrom("[e-mail]");
            helper.setTo(to_addrs);
            helper.setSubject(subject);
            helper.setText(content, true);//第二个参数表明这是一个HTML
            mailSender.send(message);
        }catch (MailException mailException){
            log.info("发送邮件报警异常!content="+content+mailException.getMessage());
            return new BaseRestResponseData(MessageError.EMAIL_SEND_ERROR).data(mailException.getMessage());
        }catch (MessagingException messageException){
            log.info("发送邮件报警内容异常!content="+content+messageException.getMessage());
            return new BaseRestResponseData(MessageError.EMAIL_SEND_ERROR).data(messageException.getMessage());
        }
        log.info("senderFalEmail邮件发送完毕");
        return new BaseRestResponseData();
    }

报警测试邮件展示

PROBLEM P0 Endpoint:10.199.96.152 Metric:mem.memfree.percent Tags: all(#3): 7.43705<=10 Note:服务器内存告警，请及时处理 Max:3, Current:1 Timestamp:2019-12-25 09:58:00 http://portalip:8081/portal/template/view/4


OK P0 Endpoint:10.199.96.152 Metric:mem.memfree.percent Tags: all(#3): 13.87895<=10 Note:服务器内存告警，请及时处理 Max:3, Current:1 Timestamp:2019-12-25 09:59:00 http://portalip:8081/portal/template/view/4 

Q&A

安装redis问题
安装mysql问题
mysql5.6以前创建用户的问题