main-server

#!/bin/bash

# Script is basically for AMD64 based OS

# Apt commands to get all of the common netutils
# and necessary for the further process of configuration.
apt-get -y update && apt-get install -y nano  \\
    && apt-get install -y curl \\
    && apt-get install -y net-tools \\
    && apt-get install -y nc \\
    && apt-get install -y unzip \\
    && apt-get install -y traceroute


# All binaries and monitoring PGL stack applications
# are contained in /home/MONITORING path
cd /home/
mkdir MONITORING
cd MONITORING/



# =================================================
# Prometheus Server
# =================================================
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 /home/MONITORING/prometheus-2.32.1.linux-amd64/prometheus.yml <<EOF
# Global scrape interval settings
global:
  scrape_interval: 10s
  evaluation_interval: 10s

# Prometheus can also alert about exceeding the trasholds
alerting:
  alertmanagers:
    - static_configs:
        - targets:

# Here is the place to include rule files
rule_files:

# How the scraping is being done
scrape_configs:

    # Scrape local prometheus metrics about collecting metrics ;)
  - job_name: "prometheus"
    static_configs:
      - targets: ["localhost:9090"]
EOF
touch /etc/systemd/system/prometheus.service
tee /etc/systemd/system/prometheus.service << EOF
[Unit]
Description=System service for Prometheus Server
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/home/MONITORING/prometheus-2.32.1.linux-amd64/prometheus --config.file=/home/MONITORING/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
# =================================================
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 /home/MONITORING/loki-config.yaml << EOF
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
touch /etc/systemd/system/loki.service
tee /etc/systemd/system/loki.service << EOF
[Unit]
Description=System service for Loki Server
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/home/MONITORING/loki-linux-amd64 -config.file=/home/MONITORING/loki-config.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 prometheus.service
systemctl start prometheus.service



# ====================================================
# Grafana Server
# ===================================================
wget https://dl.grafana.com/enterprise/release/grafana-enterprise-8.3.4.linux-amd64.tar.gz
tar -zxvf grafana-enterprise-8.3.4.linux-amd64.tar.gz
rm -f grafana-enterprise-8.3.4.linux-amd64.tar.gz
touch /etc/systemd/system/grafana.service
tee /etc/systemd/system/grafana.service << EOF
[Unit]
Description=System service for Grafana Server maintaining
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/home/MONITORING/grafana-8.3.4/grafana-server
User=root
Restart=on-failure
RestartSec=10
KillMode=process

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

# TODO - automatyzacja wprowadzania statycznych targetow
# TODO - wariacja dla systemów Windows (w sumie po chuj?)