section4cmds.txt

## set up user and directories for prometheus

sudo useradd --no-create-home prometheus
sudo mkdir /etc/prometheus
sudo mkdir /var/lib/prometheus

## Download and unarchive prometheus
wget https://github.com/prometheus/prometheus/releases/download/v2.38.0/prometheus-2.38.0.linux-amd64.tar.gz
tar xvfz prometheus-2.38.0.linux-amd64.tar.gz


## copy unarchived files to binaries folder
sudo cp prometheus-2.38.0.linux-amd64/prometheus /usr/local/bin
sudo cp prometheus-2.38.0.linux-amd64/promtool /usr/local/bin/
sudo cp -r prometheus-2.38.0.linux-amd64/consoles /etc/prometheus
sudo cp -r prometheus-2.38.0.linux-amd64/console_libraries /etc/prometheus
sudo cp prometheus-2.38.0.linux-amd64/promtool /usr/local/bin

## clean up
rm -rf prometheus-2.38.0.linux-amd64.tar.gz prometheus-2.38.0.linux-amd64

## create prometheus.yml
sudo nano /etc/prometheus/prometheus.yml

## create config for prometheus service
sudo nano /etc/systemd/system/prometheus.service

## change file and folder permissions
sudo chown prometheus:prometheus /etc/prometheus
sudo chown prometheus:prometheus /usr/local/bin/prometheus
sudo chown prometheus:prometheus /usr/local/bin/promtool
sudo chown -R prometheus:prometheus /etc/prometheus/consoles
sudo chown -R prometheus:prometheus /etc/prometheus/console_libraries
sudo chown -R prometheus:prometheus /var/lib/prometheus

## Enable and start prometheus
sudo systemctl daemon-reload
sudo systemctl enable prometheus
sudo systemctl restart prometheus
sudo systemctl status prometheus

## Install Alert Manager
sudo useradd -M -r -s /bin/false alertmanager
sudo mkdir /var/lib/alertmanager
sudo mkdir /etc/alertmanager

wget https://github.com/prometheus/alertmanager/releases/download/v0.24.0/alertmanager-0.24.0.linux-amd64.tar.gz
tar xvfz alertmanager-0.24.0.linux-amd64.tar.gz

sudo cp alertmanager-0.24.0.linux-amd64/alertmanager /usr/local/bin
sudo cp alertmanager-0.24.0.linux-amd64/amtool /usr/local/bin/
sudo cp alertmanager-0.24.0.linux-amd64/alertmanager.yml /etc/alertmanager/

sudo chown alertmanager:alertmanager /etc/alertmanager/alertmanager.yml
sudo chown alertmanager:alertmanager /usr/local/bin/alertmanager

rm -rf alertmanager*

## Edit alertmanager.yml
sudo nano /etc/alertmanager/alertmanager.yml

amtool check-config /etc/alertmanager/alertmanager.yml

## alertmanager service
sudo nano /etc/systemd/system/alertmanager.service
sudo systemctl daemon-reload 
sudo systemctl enable --now alertmanager.service 
sudo systemctl status alertmanager.service 

## alert rules
sudo nano /etc/prometheus/rules.yml
cat /etc/prometheus/rules.yml

sudo chown -R prometheus:prometheus /etc/prometheus

sudo systemctl daemon-reload
sudo systemctl restart prometheus.service
sudo systemctl restart alertmanager.service 
sudo systemctl status alertmanager.service
sudo systemctl status prometheus.service