Prometheus Node Exporter 설치 bash 한방 스크립트 (Ubuntu / CentOS 겸용)

node-exporter-install.sh

DIST=$(
    . /etc/os-release
    echo $ID
)

if [[ $DIST == "ubuntu" ]]; then
    VERSION=$(lsb_release -r | awk '{print $2}' | awk -F . '{print $1$2}')
    apt install prometheus-node-exporter -y
    systemctl --now enable prometheus-node-exporter
    systemctl --now start prometheus-node-exporter
fi

if [[ $DIST == "centos" ]]; then
    {
        echo '[prometheus]'
        echo 'name=prometheus'
        echo 'baseurl=https://packagecloud.io/prometheus-rpm/release/el/$releasever/$basearch'
        echo 'repo_gpgcheck=1'
        echo 'enabled=1'
        echo 'gpgkey=https://packagecloud.io/prometheus-rpm/release/gpgkey'
        echo '       https://raw.githubusercontent.com/lest/prometheus-rpm/master/RPM-GPG-KEY-prometheus-rpm'
        echo 'gpgcheck=1'
        echo 'metadata_expire=300'
    } >/etc/yum.repos.d/prometheus.repo
    yum install -y node_exporter
    systemctl --now enable node_exporter
    systemctl --now start node_exporter
fi

prometheus는 /etc/prometheus/prometheus.yml 에서 target 을 여러개로 만들 수 있습니다.
즉 각 서버에는 prometheus node exporter를 설치하고, 모니터링 서버 1대에만 prometheus를 설치하면 됩니다.