一键搭建Prometheus+node_exporter+grafana监控脚本

概要

为了方便更好的安装prometheus监控体系，创建了一个一键搭建监控的脚本，但实际需要跟现场环境进行匹配，修改。

脚本使用方法：

1.修改你需要下载的版本号

2.创建一个目录名为/prometheus的目录

3.如需修改为其他目录，需修改脚本文件，以及*.service的目录路径

代码如下：

#!bin/bash
#定义prometheus版本号
PROMETHEUS_VERSION="2.25.0" #选择要下载的版本
NODE_EXPORTER_VERSION="1.1.2"
GRAFANA_VERSION="7.4.3"
#下载链接
DOWNlOAD_PROMETHEUS_URL="https://github.com/prometheus/prometheus/releases/download/v${PROMETHEUS_VERSION}/prometheus-${PROMETHEUS_VERSION}.linux-amd64.tar.gz"

wget ${DOWNlOAD_PROMETHEUS_URL}

#判断是否下载成功
if [ $? -ne 0]; then
    echo "Failed to download Prometheus"
    exit 1
fi
#解压prometheus到指定路径 此处在/prometheus/

PROMETHEUS_DIR="/prometheus"
mkdir ${PROMETHEUS_DIR}
tar -xf prometheus-${PROMETHEUS_VERSION}.linux-amd64.tar.gz -C ${PROMETHEUS_DIR}


mv ${PROMETHEUS_DIR}/prometheus-${PROMETHEUS_VERSION}.linux-amd64 ${PROMETHEUS_DIR}/prometheus

cat >> /usr/lib/systemd/system/prometheus.service <<EOF
[Unit]
Description=Prometheus Node Exporter
After=network.target
 
[Service]
ExecStart=/prometheus/prometheus/prometheus --config.file=/prometheus/prometheus/prometheus.yml --web.read-timeout=5m  --web.max-connections=10 --storage.tsdb.retention=15d --storage.tsdb.path=/prometheus/prometheus/data --query.max-concurrency=20 --query.timeout=2m
User=root

[Install]
WantedBy=multi-user.target

EOF

systemctl daemon-reload
systemctl restart prometheus

# 检查服务是否成功启动  
if ! systemctl is-active --quiet prometheus; then  
    echo "Failed to start prometheus service"  
    exit 1  
fi  
systemctl enable prometheus

echo "prometheus has been installed and started successfully."

#下载node_exporter
DOWNlOAD_NODE_EXPORTER_URL="https://github.com/prometheus/node_exporter/releases/download/v${NODE_EXPORTER_VERSION}/node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64.tar.gz"
wget ${DOWNlOAD_NODE_EXPORTER_URL}

# 检查下载是否成功  
if [ $? -ne 0 ]; then  
    echo "Failed to download node_exporter"  
    exit 1  
fi  
  
tar xf "node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64.tar.gz" -C ${PROMETHEUS_DIR} 
  
# 重命名解压后的目录  
mv ${PROMETHEUS_DIR}/node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64/ ${PROMETHEUS_DIR}/node_exporter  
  
# 创建systemd服务文件  
cat > /usr/lib/systemd/system/node_exporter.service <<EOF  
[Unit]  
Description=Prometheus Node Exporter  
  
[Service]  
Restart=on-failure  
ExecStart=/prometheus/node_exporter/node_exporter --collector.systemd --collector.systemd.unit-whitelist=(docker|sshd|nginx).service  
  
[Install]  
WantedBy=multi-user.target  
EOF  
  
# 重新加载systemd以识别新服务  
systemctl daemon-reload  
  
# 启动node_exporter服务  
systemctl restart node_exporter  
# 检查服务是否成功启动  
if ! systemctl is-active --quiet node_exporter; then  
    echo "Failed to start node_exporter service"  
    exit 1  
fi  

# 设置node_exporter服务开机自启  
systemctl enable node_exporter  
  
echo "node_exporter has been installed and started successfully."

#下载grafana

DOWNlOAD_GRAFANA_URL="wget https://dl.grafana.com/enterprise/release/grafana-enterprise-${GRAFANA_VERSION}.linux-amd64.tar.gz"
wget ${DOWNlOAD_GRAFANA_URL}

# 检查下载是否成功  
if [ $? -ne 0 ]; then  
    echo "Failed to download granafa"  
    exit 1  
fi  
  

tar xf "granafa-enterprise-${GRAFANA_VERSION}.linux-amd64.tar.gz" -C ${PROMETHEUS_DIR} 
  
# 重命名解压后的目录  
mv ${PROMETHEUS_DIR}/granafa-${GRAFANA_VERSION}/ ${PROMETHEUS_DIR}/granafa  
  
# 创建systemd服务文件  
cat > /usr/lib/systemd/system/grafana.service <<EOF  
[Unit]
Description=Grafana
After=network.target

[Service]
ExecStart=/prometheus/grafana/bin/grafana-server -homepath=/prometheus/grafana

[Install]
WantedBy=multi-user.target  

EOF  
  
# 重新加载systemd以识别新服务  
systemctl daemon-reload  
  
# 启动node_exporter服务  
systemctl restart grafana  
# 检查服务是否成功启动  
if ! systemctl is-active --quiet grafana; then  
    echo "Failed to start grafana service"  
    exit 1  
fi  

# 设置node_exporter服务开机自启  
systemctl enable grafana  
  
echo "grafana has been installed and started successfully."

总结：

使用前修改脚本的一些配置，比如说路径、版本号等等 ，更好的去使用该脚本，可能存在修改需要，评论区可以进行讨论，学习。