普罗米修斯Prometheus监控安装

普罗米修斯Prometheus监控安装

架构：

服务端：192.168.0.204

客户端：192.168.0.206


环境准备：所有节点安装go 语言环境

rz go1.12.linux-amd64.tar.gz

tar -C /usr/local -xzf go1.12.linux-amd64.tar.gz

cat >> /etc/profile<<EOF
export PATH=$PATH:/usr/local/go/bin
EOF

source  /etc/profile

go version


1、server端部署

1.1、  软件包准备

cd /usr/local/src
wget https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz      #服务端、客户端都部署
wget https://github.com/prometheus/prometheus/releases/download/v2.7.1/prometheus-2.7.1.linux-amd64.tar.gz              #服务端部署
tar xf prometheus-2.7.1.linux-amd64.tar.gz
tar xf node_exporter-0.17.0.linux-amd64.tar.gz


1.2  启动node_exporter

# 验证以Prometheus本身数据为例，在Web中查询指定表达式及图形化显示查询结果 。
mv prometheus-2.7.1.linux-amd64 /usr/local
mv node_exporter-0.17.0.linux-amd64 /usr/local/
ln -s /usr/local/prometheus-2.7.1.linux-amd64/ /usr/local/prometheus
ln -s /usr/local/node_exporter-0.17.0.linux-amd64/ /usr/local/node_exporter
cd /usr/local/node_exporter
./node_exporter &
netstat -lntp|grep 9100
http://192.168.0.204:9100/metrics


1.3  启动Prometheus

cd /usr/local/prometheus 
vi prometheus.yml
global:
  scrape_interval:     15s
  evaluation_interval: 15s
  external_labels:
      monitor: 'codelab-monitor'
rule_files:
  - 'prometheus_rules.yml'    #需定义
scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: ['localhost:9090']
        labels:
          alias: prometheus

  - job_name: 'linux1'
    static_configs:
      - targets: ['192.168.0.204:9100']    #安装node_node_exporter的节点ip地址
        labels:
          alias: linux-node1

  - job_name: 'linux2'
    static_configs:
      - targets: ['192.168.0.206:9100']    #安装node_node_exporter的节点ip地址
        labels:
          alias: linux-node2
##############################################################


#添加alert规则

cat>>prometheus_rules.yml<<EOF 
groups:
- name: example
  rules:

  # Alert for any instance that is unreachable for >5 minutes.
  - alert: InstanceDown
    expr: up == 0
    for: 5m
    labels:
      severity: page
    annotations:
      summary: "Instance {{ $labels.instance }} down"
      description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."

  # Alert for any instance that has a median request latency >1s.
  - alert: APIHighRequestLatency
    expr: api_http_request_latencies_second{quantile="0.5"} > 1
    for: 10m
    annotations:
      summary: "High request latency on {{ $labels.instance }}"
      description: "{{ $labels.instance }} has a median request latency above 1s (current value: {{ $value }}s)"
EOF


启动Prometheus
cd /usr/local/prometheus
 ./prometheus


浏览器访问

http://192.168.0.204:9090/targets



2、客户端部署

2.1  部署node_exporter

使用Prometheus Web来验证客户端Node Exporter的数据的采集。内存、CPU负载，磁盘等性能监控

wget https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz      #客户端部署,可针对硬件层次进行监控
tar xf node_exporter-0.17.0.linux-amd64.tar.gz
mv node_exporter-0.17.0.linux-amd64 /usr/local/
ln -s /usr/local/node_exporter-0.17.0.linux-amd64/ /usr/local/node_exporter
cd /usr/local/node_exporter
./node_exporter &
netstat -lntp|grep 9100
http://192.168.0.206:9100/metrics  #自定义Metrics

拦截器/过滤器：用于统计所有应用请求的情况
自定义Collector: 可以用于统计应用业务能力相关的监控情况



2.3、对mysql进行监控（没做）

https://www.hi-linux.com/posts/27014.html   #可参考
cd /usr/local/src/
wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.10.0/mysqld_exporter-0.10.0.linux-amd64.tar.gz  #部署在mysql服务器上，node_exporter也部署(参考前面)
tar xf mysqld_exporter-0.10.0.linux-amd64.tar.gz
mv mysqld_exporter-0.10.0.linux-amd64 /usr/local/
ln -s /usr/local/mysqld_exporter-0.10.0.linux-amd64/ /usr/local/mysqld_exporter　
  加载mysqld_exporter 添加配置文件（需要MySQL授权用户）
  mysqld_exporter需要连接到MySQL,需要授权
  mysql> grant replication client, process on *.* to prometheus@"localhost" identified by "123456";
  mysql> grant select on performance_schema.* to prometheus@"localhost";
  cd /usr/local/mysqld_exporter/
  vim .my.cnf  
  [client]
  user=prometheus
  password=123456
  nohup ./mysqld_exporter --config.my-cnf=.my.cnf &   #启动



2.4、对nginx进行监控（没做）

cd /usr/local
git clone git://github.com/vozlt/nginx-module-vts.git   #在nginx主机上操作
./configure --prefix=/usr/local/nginx-1.12.2 --user=nginx --group=nginx --with-http_stub_status_module  --with-http_ssl_module --add-module=/usr/local/nginx-module-vts
make
nginx -s stop
cp ./objs/nginx /usr/local/nginx/sbin/
vim nginx.conf
http {
     .....
    ###Prometheus配置##   
    vhost_traffic_status_zone;
    vhost_traffic_status_filter_by_host on; #打开vhost过滤
    ###Prometheus配置##
    .....
    server {
     location /status {
               #vhost_traffic_status off;
               vhost_traffic_status_display;
               vhost_traffic_status_display_format html;
        }
    }
    }
########################################################################################################################
wget -c https://github.com/hnlq715/nginx-vts-exporter/releases/download/v0.9.1/nginx-vts-exporter-0.9.1.linux-amd64.tar.gz
tar xf nginx-vts-exporter-0.9.1.linux-amd64.tar.gz

./nginx-vts-exporter -nginx.scrape_timeout 10 -nginx.scrape_uri http://10.10.16.107/status/format/json &    #启动nginx Vhost Traffic
http://10.10.16.107/status   #访问nginx主机各节点状态



3、Alertmanager报警实现（安装在服务端）


3.1  下载alertmanager安装包
cd /usr/local
wget https://github.com/prometheus/alertmanager/releases/download/v0.16.0/alertmanager-0.16.1.linux-amd64.tar.gz
tar -axvf alertmanager-0.16.1.linux-amd64.tar.gz


3.2  配置alert默认启动yml文件

mkdir -p /usr/local/alertmanager-0.16.1.linux-amd64/template/
cd /usr/local/alertmanager-0.16.1.linux-amd64/
cat>> /usr/local/alertmanager-0.16.1.linux-amd64/simple.yml<<EOF
  global:
    smtp_smarthost: 'smtp.163.com:25'
    smtp_from: '15613691030@163.com'
    smtp_auth_username: '15613691030'
    smtp_auth_password: 'Shaochuan@5tgb'
    smtp_require_tls: false

  templates:
    - '/usr/local/alertmanager-0.16.1.linux-amd64/template/*.html'

  route:
    group_by: ['alertname', 'cluster', 'service']
    group_wait: 30s
    group_interval: 5m
    repeat_interval: 10m
    receiver: default-receiver

  receivers:
  - name: 'default-receiver'
    email_configs:
    - to: '15613691030@163.com'
      html: '{{ template "alert.html" . }}'
      headers: { Subject: "[WARN] 报警邮件test" }
EOF



3.3  配置报警发送文件样式模板

cat>> /usr/local/alertmanager-0.16.1.linux-amd64/template/alert.html<<EOF  #template需要创建
{{ define "alert.html" }}
<table>
    <tr><td>报警名</td><td>开始时间</td></tr>
    {{ range 10 := .Alerts }}
        <tr><td>{{ index $alert.Labels "alertname" }}</td><td>{{ $alert.StartsAt }}</td></tr>
    {{ end }}
</table>
{{ end }}
EOF


3.4  配置alert.html

cat>> /usr/local/alertmanager-0.16.1.linux-amd64/alert.html<<EOF 
{{ define "alert.html" }}
<table>
    <tr><td>报警名</td><td>开始时间</td></tr>
    {{ range 10 := .Alerts }}
        <tr><td>{{ index $alert.Labels "alertname" }}</td><td>{{ $alert.StartsAt }}</td></tr>
    {{ end }}
</table>
{{ end }}
EOF


3.5  启动alertmanager服务

./alertmanager --config.file=simple.yml   #启动alertmanager


4、Grafana安装、启动（安装在服务端）

wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-5.2.3-1.x86_64.rpm
yum install -y urw-fonts
rpm  -i grafana-5.2.3-1.x86_64.rpm
 /sbin/chkconfig --add grafana-server
systemctl start grafana-server.service

浏览器访问：
http://192.168.0.204:3000(默认账号密码admin/admin)

进去后会要求修改密码，然后点击add datasource，选中 Prometheus 2.0 Stats后，就可以呈现出监控面板













6、Prometheus监控总结

6.1  做好ntp时间同步

prometheus对系统时间的准确性要求很高，必须保证本机时间与监控主机实时同步：



参照：
https://blog.csdn.net/csolo/article/details/82460539
http://www.cnblogs.com/qianjingchen/articles/9578341.html