Routing logs from docker containers using GELF driver through UDP.

This docker image provides a way to securely transfer all docker logs by UDP using GELF driver. All logs data might be encrypted and send to a remote log server for further analysis.

logrouter is only one part of a larger project which is not done yet. There's still a lack of two major parts: log server and log viewer.

version: "3"

networks:
  net:

services:

  # loop-alpine generates logs each milisecond
  loop-alpine:
    image: alpine:latest
    container_name: log-generator
    command: /bin/sh -c "while true; do sleep 0.001; echo 'test message'; done;"
    logging:
      driver: gelf
      options:
        gelf-address: udp://localhost:22222 # specify proper port
        gelf-compression-type: none
        tag: test-loop
    depends_on: 
      - logrouter
    networks: 
      - net

  logrouter:
    image: lookasc/logrouter:latest
    container_name: logrouter
    environment: 
      # all containers from compose file should write to this port
      - UDP_LISTEN_PORT=22222
      # port of remote log server
      - UDP_REMOTE_PORT=33333
      # hostname of remote log server
      - UDP_REMOTE_HOST=some.hostname.com.or.ip.address
      # max buffer file size - will be send to log server when is larger
      - ACTIVE_BUFFER_MAX_SIZE=1M # {number}k | {number}M
      # buffer will be send to log server after this time
      - ACTIVE_BUFFER_MAX_AGE=10  # time in seconds
      # data encryption may be enabled/disabled here
      - ENCRYPT_DATA=true
      # password used to encrypt data
      - ENCRYPT_PASSWORD=yourSuperSecretPassword
    ports: 
      # your ports
      - 22222:22222/udp
      - 33333:33333/udp
    networks: 
      - net

Copyright (c) 2020 lookasc

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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