promtail-var-log.sh

#!/bin/bash -xe

wget https://github.com/grafana/loki/releases/download/v2.0.0/promtail-linux-amd64.zip
unzip promtail-linux-amd64.zip
mv promtail-linux-amd64 /usr/local/bin/promtail



cat << EOF > /etc/systemd/system/promtail.service 
[Unit]
Documentation=https://grafana.com/docs/loki/latest/
After=network.target
ConditionPathExists=/etc/promtail.yaml
ConditionFileIsExecutable=/usr/local/bin/promtail

[Service]
ExecStart=/usr/local/bin/promtail -config.file /etc/promtail.yaml -log.level info
KillMode=process
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF


cat << EOF > /etc/promtail.yaml
server:
  http_listen_port: 0
  grpc_listen_port: 0

positions:
  filename: /var/lib/promtail.yaml

clients:
  - url: http://${ENDPOINT}/loki/api/v1/push

scrape_configs:
- job_name: ${HOSTNAME}
  static_configs:
  - targets:
      - localhost
    labels:
      job: ${HOSTNAME}-var-log
      __path__: /var/log/*log
EOF


systemctl daemon-reload
systemctl start promtail.service
systemctl enable promtail.service
systemctl status promtail.service
journalctl -u promtail.service -f