Centos7通过redis_exporter收集并发送到Prometheus以及使用Grafana进行展示并报警到钉钉&邮件
- 前提：Centos7上安装redis-6.0.1.tar.gz
启动：/opt/module/redis/bin/redis-server /opt/module/redis/bin/redis.conf 查看：ps -ef | grep redis本人的启动命令如上
- 下载prometheus-2.19.2.linux-amd64.tar.gz、grafana-7.0.6-1.x86_64.rpm、redis_exporter-v1.9.0.linux-amd64.tar.gz
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[root@cdh632-worker02 soft]# cd /opt/soft [root@cdh632-worker02 soft]# tar -zxvf prometheus-2.19.2.linux-amd64.tar.gz -C /opt/module/ [root@cdh632-worker02 soft]# tar -zxvf redis_exporter-v1.9.0.linux-amd64.tar.gz -C /opt/module/ [root@cdh632-worker02 soft]# cd /opt/module 由于无法联外网，故无法用yum安装rpm安装包时自定义安装目录，即： [root@cdh632-worker02 module]# yum -c /etc/yum.conf --installroot=/opt/module --releasever=/ install /opt/soft/grafana-7.0.6-1.x86_64.rpm 故采用yum本地安装方式 [root@cdh632-worker02 module]# yum localinstall grafana-7.0.6-1.x86_64.rpm [root@cdh632-worker02 module]# rpm -qa|grep grafana grafana-7.0.6-1.x86_64 [root@cdh632-worker02 module]# rpm -ql grafana-7.0.6-1.x86_64 /etc/grafana /etc/init.d/grafana-server /etc/sysconfig/grafana-server /usr/lib/systemd/system/grafana-server.service /usr/sbin/grafana-cli /usr/sbin/grafana-server /usr/share/grafana/VERSION ... [root@cdh632-worker02 module]# systemctl enable grafana-server Created symlink from /etc/systemd/system/multi-user.target.wants/grafana-server.service to /usr/lib/systemd/system/grafana-serve r.service. [root@cdh632-worker02 module]# systemctl start grafana-server [root@cdh632-worker02 module]# groupadd prometheus [root@cdh632-worker02 module]# mv prometheus-2.19.2.linux-amd64 prometheus [root@cdh632-worker02 module]# useradd -g prometheus prometheus -d /opt/module/prometheus useradd: warning: the home directory already exists. Not copying any file from skel directory into it. [root@cdh632-worker02 module]# chown root:root prometheus [root@cdh632-worker02 module]# useradd -g prometheus prometheus -d /opt/module/prometheus useradd: user 'prometheus' already exists [root@cdh632-worker02 module]# cd prometheus/ [root@cdh632-worker02 prometheus]# mkdir {data,cfg,logs,bin} -p [root@cdh632-worker02 prometheus]# mv prometheus promtool bin/ [root@cdh632-worker02 prometheus]# mv prometheus.yml cfg/ [root@cdh632-worker02 prometheus]# vi /etc/systemd/system/prometheus.service [Unit] Description=Prometheus Documentation=https://prometheus.io/ After=network.target [Service] Type=simple User=prometheus ExecStart=/opt/module/prometheus/bin/prometheus --config.file=/opt/module/prometheus/cfg/prometheus.yml --storage.tsdb.path=/opt/module/prometheus/data Restart=on-failure [Install] WantedBy=multi-user.target [root@cdh632-worker02 prometheus]# vi /opt/module/prometheus/cfg/prometheus.yml # - targets: ['localhost:9090'] # 注释掉上面一行，添加如下六行 - targets: ['cdh632-worker02:9090'] - job_name: 'redis' # metrics_path defaults to '/metrics' # scheme defaults to 'http'. static_configs: - targets: ['cdh632-worker02:9121'] [root@cdh632-worker02 prometheus]# ll /etc/systemd/system/ total 44 drwxr-xr-x. 2 root root 4096 Mar 2 14:59 basic.target.wants lrwxrwxrwx. 1 root root 46 Mar 2 14:59 dbus-org.freedesktop.NetworkManager.service -> /usr/lib/systemd/system/NetworkManager.service lrwxrwxrwx. 1 root root 57 Mar 2 14:59 dbus-org.freedesktop.nm-dispatcher.service -> /usr/lib/systemd/system/NetworkManager-dispatcher.service lrwxrwxrwx. 1 root root 37 Mar 2 15:01 default.target -> /lib/systemd/system/multi-user.target drwxr-xr-x. 2 root root 4096 Mar 2 14:59 default.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 getty.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 local-fs.target.wants drwxr-xr-x. 2 root root 4096 Jul 11 17:01 multi-user.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 network-online.target.wants -rw-r--r--. 1 root root 336 Jul 11 16:49 prometheus.service drwxr-xr-x. 2 root root 4096 Mar 2 17:35 sockets.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 sysinit.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 system-update.target.wants drwxr-xr-x. 2 root root 4096 Mar 2 14:59 vmtoolsd.service.requires [root@cdh632-worker02 prometheus]# cd .. [root@cdh632-worker02 module]# chown -R prometheus.prometheus prometheus [root@cdh632-worker02 prometheus]# systemctl daemon-reload [root@cdh632-worker02 prometheus]# systemctl enable prometheus Created symlink from /etc/systemd/system/multi-user.target.wants/prometheus.service to /etc/systemd/syst em/prometheus.service. [root@cdh632-worker02 prometheus]# systemctl start prometheus [root@cdh632-worker02 module]# systemctl status prometheus ● prometheus.service - Prometheus Loaded: loaded (/etc/systemd/system/prometheus.service; enabled; vendor preset: disabled) Active: active (running) since Sat 2020-07-11 17:09:36 CST; 2min 33s ago Docs: https://prometheus.io/ Main PID: 3014 (prometheus) CGroup: /system.slice/prometheus.service └─3014 /opt/module/prometheus/bin/prometheus --config.file=/opt/module/prometheus/cfg/prometheus.yml --storage.tsdb.path=/... Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.680Z caller=main.go:678 msg="Starting TSDB ..." Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.680Z caller=web.go:524 component=web msg="S...0:9090 Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.682Z caller=head.go:645 component=tsdb msg=...while" Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.682Z caller=head.go:706 component=tsdb msg=...ment=0 Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.682Z caller=head.go:709 component=tsdb msg=…81.827µs Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.683Z caller=main.go:694 fs_type=EXT4_SUPER_MAGIC Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.683Z caller=main.go:695 msg="TSDB started" Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.683Z caller=main.go:799 msg="Loading config...us.yml Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.683Z caller=main.go:827 msg="Completed load...us.yml Jul 11 17:09:36 cdh632-worker02 prometheus[3014]: level=info ts=2020-07-11T09:09:36.683Z caller=main.go:646 msg="Server is read...ests." Hint: Some lines were ellipsized, use -l to show in full.打开其web ui：http://cdh632-worker02:9090/
[root@cdh632-worker02 module]# mv redis_exporter-v1.9.0.linux-amd64 redis_exporter
[root@cdh632-worker02 module]# vi /etc/systemd/system/redis_exporter.service
[Unit]
Description=redis_exporter
Documentation=https://prometheus.io/
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/opt/module/redis_exporter/redis_exporter redis.addr=cdh632-worker02:6379
Restart=on-failure
[Install]
WantedBy=multi-user.target
[root@cdh632-worker02 module]# systemctl daemon-reload
[root@cdh632-worker02 module]# systemctl enable redis_exporter
[root@cdh632-worker02 module]# systemctl start redis_exporter
[root@cdh632-worker02 module]# systemctl status redis_exporter
Grafana的web ui：http://cdh632-worker02:3000/，默认账号/密码：admin/admin
复制：https://grafana.com/api/dashboards/763/revisions/1/download
