Docker 安装 Prometheus 2.5

#创建工作目录

sudo mkdir -p /app/prometheus/config
sudo mkdir -p /app/prometheus/data
sudo chmod -R 777 /app/prometheus/config
sudo chmod -R 777 /app/prometheus/data

#生成预设配置文件

sudo cat > /app/prometheus/config/prometheus.yml <<EOF

global:
  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  
scrape_configs:
- job_name: "prometheus"
    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
  static_configs:
  - targets: ["localhost:9090"]
- job_name: 'job01'
  static_configs:
  - targets: ['127.0.0.1:9100']

EOF

#执行docker命令

docker run -d \
    -p 9090:9090 \
    --restart=always \
    -v /app/prometheus/config/prometheus.yml:/etc/prometheus/prometheus.yml \
    -v /app/prometheus/data:/prometheus \
    --log-opt max-size=1g \
    --log-opt max-file=2 \
    --name prometheus \
    prom/prometheus:v2.55.0 \
    --config.file=/etc/prometheus/prometheus.yml \
    --storage.tsdb.path=/prometheus \
    --storage.tsdb.retention.time=180d \
    --web.console.libraries=/usr/share/prometheus/console_libraries \
    --web.console.templates=/usr/share/prometheus/consoles \
    --web.enable-lifecycle 

 #安装node_exporter

sudo mkdir /app

cd /app

sudo wget https://github.com/prometheus/node_exporter/releases/download/v1.8.2/node_exporter-1.8.2.linux-amd64.tar.gz

sudo tar xvfz node_exporter-*.*-amd64.tar.gz

sudo mv /app/node_exporter-1.8.2.linux-amd64 /app/prometheus_node_exporter

#设置node_exporter自启动

sudo tee /etc/systemd/system/node_exporter.service > /dev/null <<EOF
[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=nobody
ExecStart=/app/prometheus_node_exporter/node_exporter
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

#启动node_exporter服务

sudo systemctl daemon-reload
sudo systemctl start node_exporter
sudo systemctl enable node_exporter

#测试node_exporter命令

curl http://localhost:9100/metrics

#docker安装node_exporter

docker run -d \
  --net="host" \
  --pid="host" \
  --restart=always \
  -v "/:/host:ro,rslave" \
  --name prometheus_node_exporter \
  quay.io/prometheus/node-exporter:latest \
  --path.rootfs=/host