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PLG Stack Steps

VM Setup​

VM Settings​

Name: prod-watch-01

Clone from template​

DOCKER --> 16GB Ram, 4 vCPU, 100GB HDD ub-24-min-docker

Create a Docker Compose Setup​

Create a project folder​

mkdir ~/plg-stack && cd ~/plg-stack

Create a docker-compose.yml file​

sudo vim docker-compose.yml

Copy the following content into the file:

version: "3.7"

services:
grafana:
  image: grafana/grafana:latest
  container_name: grafana
  ports:
    - "3000:3000"
  volumes:
    - grafana_data:/var/lib/grafana
  restart: always

loki:
  image: grafana/loki:2.9.0
  container_name: loki
  ports:
    - "3100:3100"
  command: -config.file=/etc/loki/local-config.yaml
  volumes:
    - loki_data:/loki
  restart: always

promtail:
  image: grafana/promtail:2.9.0
  container_name: promtail
  volumes:
    - /var/log:/var/log
    - ./promtail-config.yaml:/etc/promtail/config.yaml
  command: -config.file=/etc/promtail/config.yaml
  restart: always

prometheus:
  image: prom/prometheus:latest
  container_name: prometheus
  ports:
    - "9090:9090"
  volumes:
    - prometheus_data:/prometheus
    - ./prometheus.yml:/etc/prometheus/prometheus.yml
  restart: always

volumes:
grafana_data:
loki_data:
prometheus_data:

Create a Promtail config file​

sudo vim promtail-config.yml

Copy the following content into the file:

server:
http_listen_port: 9080
grpc_listen_port: 0

positions:
filename: /tmp/positions.yaml

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

scrape_configs:
- job_name: system
  static_configs:
    - targets:
        - localhost
      labels:
        job: varlogs
        __path__: /var/log/*.log

Create a Prometheus config file​

sudo vim prometheus.yml

Copy the following content into the file:

global:
scrape_interval: 15s

scrape_configs:
- job_name: 'prometheus'
  static_configs:
    - targets: ['localhost:9090']

Start the Docker Compose setup​

Run from the ~/plg-stack directory:

sudo docker-compose up -d

Confirm all services are running:

sudo docker ps

Access Grafana:

http://192.168.8.170:3000

Default login: admin/admin
Change the default password admin and login again.
Loki: runs at port 3100
Prometheus: runs at port 9090

http://192.168.8.170:9090

Set Up Grafana Data Source​

Go to Grafana UI → Gear Icon (Settings) → Data Sources

Add new data source:

Name: Loki

Type: Loki

URL:

http://loki:3100

Save & Test