- https://rtfm.co.ua/en/grafana-labs-loki-logs-collector-and-monitoring-system/
- Using Fluentd and Loki on Docker
- Log Monitoring and Alerting with Loki
You can refer to the following to get your loki stack up and running:
- https://blog.ruanbekker.com/blog/2020/08/13/getting-started-on-logging-with-loki-using-docker/
- https://grafana.com/docs/loki/latest/installation/
For a distributed loki stack (distributed components):
Install the loki docker driver:
$ sudo docker plugin install grafana/loki-docker-driver:latest --alias loki --grant-all-permissions
To use it in your docker-compose.yml
version: '3.7'
services:
website:
image: nginx
container_name: website
restart: unless-stopped
logging:
driver: loki
options:
loki-url: http://192.168.0.4:3100/loki/api/v1/push
loki-external-labels: job=dockerlogs,stack=nginx
loki-pipeline-stages: |
- regex:
expression: '(level|lvl|severity)=(?P<level>\w+)'
- labels:
level:
Or if you want to have all the containers log to loki by default, configure the daemon.json
$ cat /etc/docker/daemon.json
{
"debug" : true,
"log-driver": "loki",
"log-opts": {
"loki-url": "https://docker:[email protected]/loki/api/v1/push",
"loki-batch-size": "300",
"loki-external-labels": "job=dev/dockerlogs,container_name={{.Name}},cluster_name=dev-ecs-cluster,hostname=ip-172-31-50-37.eu-west-1.compute.internal,aws_account=dev,environment=development"
}
}
Restart the service:
$ sudo systemctl restart docker
To test with a container, you dont need to set the log driver, as it will be the default:
$ docker run --rm -it --name foobar12 alpine echo hi
And the logs in loki:
If the daemon.json is left as default, to specify the docker logging driver:
$ docker run --rm -it --log-driver loki --log-opt loki-url="https://x:[email protected]/loki/api/v1/push" --log-opt loki-external-labels="job=debug/dockerlogs" hello-world
View the logcli cheatsheet to use the terminal to view your logs