Prometheus 监控 Redis

1、下载 redis exporter

// 下载地址：https://github.com/oliver006/redis_exporter/releases
# ls redis_exporter-v1.0.0.linux-amd64.tar.gz 
redis_exporter-v1.0.0.linux-amd64.tar.gz
# tar xvf redis_exporter-v1.0.0.linux-amd64.tar.gz -C /usr/local/

2、配置 redis_exporter
2.1 添加账号授权给 redis exporter，以便 redis_exporter 能够连接到 redis server

2.2 配置 redis_exporter service 文件

# vim /etc/systemd/system/redis_exporter.service
[Unit]
Description=redis_exporter
After=network.target

[Service]
Restart=on-failure
ExecStart=/usr/local/redis_exporter-v1.0.0.linux-amd64/redis_exporter -redis.addr 192.168.22.33:6379 -redis.password 123456

[Install]
WantedBy=multi-user.target

# systemctl daemon-reload
# systemctl start redis_exporter
# systemctl status redis_exporter

-redis.addr 192.168.22.33:6379 -redis.password 123456 --> 配置 redis 连接信息

3、 查看采集到的数据

4、添加 prometheus 监控

# vim prometheus.yml
  - file_sd_configs:
    - files:
      - 'configs/redis.yml'
    job_name: Redis
    metrics_path: /metrics
    relabel_configs:
    - source_labels: [__address__]
      regex: (.*)
      target_label: instance
      replacement: $1
    - source_labels: [__address__]
      regex: (.*)
      target_label: __address__
      replacement: $1:9121

# vim configs/redis.yml
- labels:
    service: redis_192.168.22.33
  targets:
  - 192.168.22.11

5、 配置 grafana 展示
从 https://grafana.com/dashboards/763 下载 json 文件，导入 grafana，根据需求调整即可。