TipsOnGreenInstallationMonitoring

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monitoring using green installation(prometheus and netdata)

Netdata

Download the run.gz from official release:

# curl https://github.com/netdata/netdata/releases/download/v1.19.0/netdata-v1.19.0.gz.run>netdata-v1.19.0.gz.run
# chmod 777 *.run
# ./netdata-v1.19.0.gz.run --accept

Todo:

why could not be installed via: curl xxx/xxx.gz.run | bash ?

Tips: Pass parameter to bash:

# curl xxxx/xxx.gz.run | bash -s -- --accept

Prometheus

Install makeself via apt-get install -y makeself, later we will use it for createing install.run package.

Folder structure:

$ tree node_exporter 
node_exporter
├── install_node_exporter.sh
└── node_exporter

Edit the install_node_exporter.sh file:

#!/bin/sh -e

_check_root () {
    if [ $(id -u) -ne 0 ]; then
        echo "Please run as root" >&2;
        exit 1;
    fi
}

_check_root

mkdir -p /opt/node_exporter
cp node_exporter /opt/node_exporter/

if [ -x "$(command -v systemctl)" ]; then
    cat << EOF > /lib/systemd/system/node-exporter.service
[Unit]
Description=Prometheus agent
After=network.target
StartLimitIntervalSec=0

[Service]
Type=simple
Restart=always
RestartSec=1
ExecStart=/opt/node_exporter/node_exporter

[Install]
WantedBy=multi-user.target
EOF

    systemctl enable node-exporter
    systemctl start node-exporter
elif [ -x "$(command -v chckconfig)" ]; then
    cat << EOF >> /etc/inittab
::respawn:/opt/node_exporter/node_exporter
EOF
elif [ -x "$(command -v initctl)" ]; then
    cat << EOF > /etc/init/node-exporter.conf
start on runlevel [23456]
stop on runlevel [016]
exec /opt/node_exporter/node_exporter
respawn
EOF

    initctl reload-configuration
    stop node-exporter || true && start node-exporter
else
    echo "No known service management found" >&2;
    exit 1;
fi

While node_exporter is downloaded from github.

Make install.run:

# makeself ./node_exporter ./node_exporter_0.18.1.run "SFX installer for node_exporter(0.18.1)" ./install_node_exporter.sh

Thus we get the run file for installing:

$ ls
node_exporter/  node_exporter_0.18.1.run

We can install it via ./node_exporter_0.18.1.run.

post-installation

Be sure to open the ports banned by firewall, take centos6 for example:

$   iptables -I INPUT -p tcp --dport 9100 -j ACCEPT
$   iptables -I INPUT -p tcp --dport 19999 -j ACCEPT
$ service iptables save

In centos6, netdata will cause system restart hold for 1 minutes.