gerardonevarez / fluentd-docker-image Goto Github PK

Fluentd docker image

This Docker image is to create endpoint to collect logs on your host.

Sample Docker Compose yml file:

server:
  image: analyser/fluentd:v0.12.12
  restart: always
  hostname: logserver
  links:
    - es:elasticsearch
    - es:es
  volumes:
    - /var/lib/docker/containers:/var/lib/docker/containers
    - ./fluentd-docker.pos:/fluentd/log/fluentd-docker.pos
    - ./fluent.conf:/fluentd/etc/fluent.conf

es:
  image: elasticsearch:latest
  restart: always
  ports:
    - "9200:9200"
    - "9300:9300"

kibana:
  ports:
    - "5601:5601"
  image: kibana:latest
  restart: always
  links:
    - es:elasticsearch

Configurable ENV variables

Environment variable below are configurable to control how to execute fluentd process:

FLUENTD_CONF

It's for configuration file name, specified for -c.

If you want to use your own configuration file (without any optional plugins), you can use it over this ENV variable and -v option.

1. write configuration file with filename yours.conf
2. execute docker run with -v /path/to/dir:/fluentd/etc to share /path/to/dir/yours.conf in container, and -e FLUENTD_CONF=yours.conf to read it

FLUENTD_OPT

Use this variable to specify other options, like -v or -q.

How to build your own image

It is very easy to use this image as base image. Write your Dockerfile and configuration files, and/or your own plugin files if needed.

FROM analyser/fluentd:latest
MAINTAINER your_name <...>
RUN gem install fluent-plugin-secure-forward --no-rdoc --no-ri
EXPOSE 24224
CMD fluentd -c /fluentd/etc/$FLUENTD_CONF -p /fluentd/plugins $FLUENTD_OPT

Files below are automatically included in build process:

fluent.conf: used instead of default file. plugins/*: copied into /fluentd/plugins and loaded at runtime.