Install Telegraf

install_telegraf.sh

#!/bin/bash
# Custom script to install Telegraf

# telegraf user
sudo useradd -s /bin/false telegraf

# Create the systemd directory.
#
# .conf files in this directory will override the default configuration.
# You should include such a file in the boot script for a given instance.
#
# If you decide not to do this the service will be disabled!
# 
# If you don't intend to put something in the directory,
# Comment out the line below.
sudo mkdir /etc/systemd/system/telegraf.service.d

# Before adding Influx repository, run this so that apt will be able to read the repository.
until sudo apt-get update -y
do
    sleep 1
    echo "apt-get update - trying again..."
done

until sudo apt-get install -y apt-transport-https
do
    sleep 1
    echo "apt-get install apt-transport-https - trying again..."
done

# Add the InfluxData key
wget -qO- https://repos.influxdata.com/influxdb.key | sudo apt-key add - || \
    { echo "Could not add InfluxData key to apt..."; exit 1; }


source /etc/os-release
test $VERSION_ID = "7" && echo "deb https://repos.influxdata.com/debian wheezy stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
test $VERSION_ID = "8" && echo "deb https://repos.influxdata.com/debian jessie stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
test $VERSION_ID = "9" && echo "deb https://repos.influxdata.com/debian stretch stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
test $VERSION_ID = "10" && echo "deb https://repos.influxdata.com/debian buster stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

# Install Telegraf
until sudo apt-get update -y
do 
    sleep 1
    echo "apt-get update - trying again..."
done

until sudo apt-get install -y telegraf
do 
    sleep 1
    echo "apt-get installing telegraf - trying again..."
done

# Give Telegraf permission to acces the docker daemon unix socket
sudo usermod -aG docker telegraf

# Enable Telegraf
sudo systemctl enable telegraf