install_v2.sh

#!/bin/bash

:<<'END'
Written on 04.02.2022 by Pawel Gasiewski aka Syklighty for Hawe Telekom sp.z.o.o
Versions of installed software are up to date and working for a date above.
Software is designated for Linux AMD64 architecture.
 ____  _          _ _       _     _
/ ___|| | ___   _| (_) __ _| |__ | |_ _   _
\___ \| |/ / | | | | |/ _` | '_ \| __| | | |
 ___) |   <| |_| | | | (_| | | | | |_| |_| |
|____/|_|\_\\__, |_|_|\__, |_| |_|\__|\__, |
            |___/     |___/           |___/
END

# =======================================================================================
# =======================================================================================
GREEN='\033[0;32m'
RED='\033[0;31m'
NC='\033[0m'
# =======================================================================================

cd /usr/local/bin
apt-get install -y unzip > /dev/null
PS3='Please enter what do you want to install: '
options=("Promtail" "Grafana Server" "Prometheus Server" "Loki Server" "Node Exporter" "Quit")
select opt in "${options[@]}"
do
# CASES - OPTIONS
case $opt in

# =======================================================================================

"Promtail")
echo -e "${GREEN}OK. Installing Promtail and adding system service${NC} \n"
wget https://github.com/grafana/loki/releases/download/v2.4.2/promtail-linux-amd64.zip
unzip promtail-linux-amd64.zip
rm -f promtail-linux-amd64.zip
touch config-promtail.yaml
tee /etc/systemd/system/promtail.service << EOF > /dev/null
[Unit]
Description=System service for Promtail - Loki agent for pushing logs
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/usr/local/bin/promtail-linux-amd64 -config.file=/usr/local/bin/config-promtail.yaml
User=root
Restart=on-failure
RestartSec=10
KillMode=process

[Install]
WantedBy=multi-user.target
EOF
chmod 640 /etc/systemd/system/promtail.service
systemctl daemon-reload
systemctl enable promtail.service
echo -e "${RED}! UWAGA !${NC}\n"
echo -e "${GREEN} Powyzsza instalacja nie zawiera konfiguracji Promtaila!${NC}\n"
echo -e "${GREEN} Promtail powinien być skonfigurowany indywidualnie wedle potrzeb uzytkownika${NC}\n"
echo -e "${GREEN} Edytuj plik /usr/local/bin/config-promtail.yaml${NC}\n"
echo -e "${GREEN} A nastepnie uruchom serwis - ${NC}${RED} systemctl start promtail${NC}\n"
;;

# =======================================================================================

"Grafana Server")
echo -e "${GREEN}OK. Installing Grafana Server and adding system service${NC} \n"
apt-get install -y adduser libfontconfig1
wget https://dl.grafana.com/enterprise/release/grafana-enterprise_8.3.4_amd64.deb
dpkg -i grafana-enterprise_8.3.4_amd64.deb
rm -f grafana-enterprise_8.3.4_amd64.deb
systemctl daemon-reload
systemctl enable grafana-server
systemctl start grafana-server
;;

# =======================================================================================

"Prometheus Server")
echo -e "${GREEN}OK. Installing Prometheus Server with default config and adding system service${NC} \n"
wget https://github.com/prometheus/prometheus/releases/download/v2.32.1/prometheus-2.32.1.linux-amd64.tar.gz
tar -xvzf prometheus-2.32.1.linux-amd64.tar.gz
rm -f prometheus-2.32.1.linux-amd64.tar.gz
tee /etc/systemd/system/prometheus.service << EOF > /dev/null
[Unit]
Description=System service for Prometheus Server
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/usr/local/bin/prometheus-2.32.1.linux-amd64/prometheus --config.file=/usr/local/bin/prometheus-2.32.1.linux-amd64/prometheus.yml
User=root
Restart=on-failure
RestartSec=10
KillMode=process

[Install]
WantedBy=multi-user.target
EOF
chmod 640 /etc/systemd/system/prometheus.service
systemctl daemon-reload
systemctl enable prometheus.service
systemctl start prometheus.service
;;

# =======================================================================================

"Loki Server")
echo -e "${GREEN}OK. Installing Loki Server with default config and adding systems service ${NC} \n"
wget https://github.com/grafana/loki/releases/download/v2.4.2/loki-linux-amd64.zip
unzip loki-linux-amd64.zip
rm -f loki-linux-amd64.zip
tee config-loki.yaml << EOF > /dev/null
auth_enabled: false

server:
  http_listen_port: 3100
  grpc_listen_port: 9096

common:
  path_prefix: /tmp/loki
  storage:
    filesystem:
      chunks_directory: /tmp/loki/chunks
      rules_directory: /tmp/loki/rules
      replication_factor: 1
      ring:
    instance_addr: 127.0.0.1
    kvstore:
      store: inmemory

schema_config:
  configs:
    - from: 2020-10-24
      store: boltdb-shipper
      object_store: filesystem
      schema: v11
      index:
        prefix: index_
        period: 24h

ruler:
  alertmanager_url: http://localhost:9093
EOF
tee /etc/systemd/system/loki.service << EOF > /dev/null
[Unit]
Description=System service for Loki Server
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/usr/local/bin/loki-linux-amd64 -config.file=/usr/local/bin/config-loki.yaml
User=root
Restart=on-failure
RestartSec=10
KillMode=process

[Install]
WantedBy=multi-user.target
EOF
chmod 640 /etc/systemd/system/loki.service
systemctl daemon-reload
systemctl enable loki.service
systemctl start loki.service
;;

# =======================================================================================

"Node Exporter")
echo -e "${GREEN}OK. Installing Node Exporter and adding system service${NC} \n"
wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz
tar -xvzf node_exporter-1.3.1.linux-amd64.tar.gz
rm -f node_exporter-1.3.1.linux-amd64.tar.gz
cp node_exporter-1.3.1.linux-amd64/node_exporter .
rm -r node_exporter-1.3.1.linux-amd64
tee /etc/systemd/system/node-exporter.service << EOF > /dev/null
[Unit]
Description=System service Node Exporter - hardware metrics exporter
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/usr/local/bin/node_exporter
User=root
Restart=on-failure
RestartSec=10
KillMode=process

[Install]
WantedBy=multi-user.target
EOF
chmod 640 /etc/systemd/system/node-exporter.service
systemctl daemon-reload
systemctl enable node-exporter.service
systemctl start node-exporter.service
;;

# =======================================================================================

"Quit")
echo -e "${GREEN}User requsted exit${NC} \n"
exit
;;

*) echo -e "${RED}Invalid option $REPLY ${NC} \n";;

    esac
done