workers

#!/bin/bash

# Skrypt dostosowany do OS o architekturze AMD64

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 traceroute

cd /home/
mkdir MONITORING
cd MONITORING/

# Node Exporter
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 -xvzf node_exporter-1.3.1.linux-amd64.tar.gz
cd node_exporter-1.3.1.linux-amd64
chmod +x node_exporter
touch /etc/systemd/system/node_exporter.service
tee /etc/systemd/system/node_exporter.service <<EOF
[Unit]
Description=System service for NODE EXPORTER - system metrics exportation
Wants=network.target
After=syslog.target network-online.target

[Service]
Type=simple
ExecStart=/home/MONITORING/node_exporter-1.3.1.linux-amd64/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

# Promtail
wget https://github.com/grafana/loki/releases/download/v2.4.2/promtail-linux-amd64.zip
unzip promtail-linux-amd64.zip
tee /home/MONITORING/promtail-config.yaml << EOF
server:
  http_listen_port: 9080
  grpc_listen_port: 0

positions:
  filename: /tmp/positions.yaml

clients:
  - url: 'http://192.168.75.203:3100/loki/api/v1/push'

scrape_configs:
  - job_name: journal
    journal:
      max_age: 12h
      labels:
        job: systemd-journal
    relabel_configs:
      - source_labels: ['__journal__systemd_unit']
        target_label: 'unit'
  - job_name: containers
    pipeline_stages:
    - json:
        expressions:
          output: log
          stream: stream
          attrs:
    - regex:
        expression: (?P<image_name>(?:[^|]*[^|])).(?P<container_name>(?:[^|]*[^|])).(?P<image_id>(?:[^|]*[^|])).(?P<container_id>(?:[^|]*[^|]))
        source: tag
    - timestamp:
        format: RFC3339Nano
        source: time
    - labels:
        tag:
        stream:
        image_name:
        container_name:
        image_id:
        container_id:
    - output:
        source: output
    static_configs:
    - targets:
        - localhost
      labels:
        job: containerlogs
        __path__: /var/lib/docker/containers/*/*log
  - job_name: system
    static_configs:
    - targets:
        - localhost
      labels:
        host: $HOSTNAME
        job: varlogs
        __path__: /var/log/*log
EOF
touch /etc/systemd/system/promtail.service
tee /etc/systemd/system/promtail.service <<EOF
[Unit]
Description=System service for Promtail - Loki agent for pushing logs
Wants=network.target
After=syslog.target network-online.target

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