Docker Swarm

To use LoggiFly in swarm mode you have to set the environment variable LOGGIFLY_MODE to swarm.

The config.yaml is passed to each worker via Docker Configs (see example).

The configuration pretty much stays the same except that you set swarm_services instead of containers or use the SWARM_SERVICES environment variable.

If normal containers are set instead of or additionally to swarm_services LoggiFly will also look for these containers on every node.

Docker Compose

version: "3.8"

services:
  loggifly:
    image: ghcr.io/clemcer/loggifly:latest
    deploy:
      mode: global  # runs on every node
      restart_policy:
        condition: any
        delay: 5s
        max_attempts: 5
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro 
    environment:
      TZ: Europe/Berlin
      LOGGIFLY_MODE: swarm
      # You can use environment variables instead of a config.yaml if you want
      # SWARM_SERVICES: nginx,redis
      # GLOBAL_KEYWORDS: keyword1,keyword2
      # GLOBAL_KEYWORDS_WITH_ATTACHMENT: keyword3
      # For more environment variables see the environment variables section in the docs 
# Comment out the rest of this file if you are only using environment variables
    configs:
      - source: loggifly-config
        target: /config/config.yaml  

configs:
  loggifly-config:
    file: ./loggifly/config.yaml  # SET THE PATH TO YOUR CONFIG.YAML HERE

Configuring the config.yaml

In the config.yaml, you can configure Swarm services to be monitored in the same way as containers.

swarm_services:
  nginx:
    keywords:
      - error
      - regex: \timeout\b.* 
  redis:
    - keyword: critical
      attach_logfile: true

If both nginx and redis are part of the same compose stack named my_service you can configure that service name to monitor both:

swarm_services:
  my_service: # includes my_service_nginx and my_service_redis
    keywords:
      - error
    keywords_with_attachment:
      - fatal

The swarm_services configuration is identical to that of containers, so for all available configuration options, refer to the Containers section or the Settings Overview.