mirror of https://github.com/k3s-io/k3s
46 lines
2.2 KiB
Docker
46 lines
2.2 KiB
Docker
# This Dockerfile will build an image that is configured to use Fluentd to
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# collect container log files from the specified paths and send them to the
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# Elasticsearch.
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# The environment variable that controls which log files are collected is
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# FILES_TO_COLLECT. Files specified in the environment variable should be
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# separated by whitespace, as in "/var/log/syslog /var/log/nginx/access.log".
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# This configuration assumes that the cluster this pod is running in has an
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# Elasticsearch instance reachable via a service named elasticsearch-logging.
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FROM ubuntu:14.04
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MAINTAINER Alex Robinson "arob@google.com"
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# Ensure there are enough file descriptors for running Fluentd.
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RUN ulimit -n 65536
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# Disable prompts from apt.
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ENV DEBIAN_FRONTEND noninteractive
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# Install the standard, official Fluentd agent (called td-agent, for the
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# project's parent company, Treasure Data).
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RUN apt-get -q update && \
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apt-get install -y curl && \
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apt-get install -y -q libcurl4-openssl-dev make && \
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apt-get clean
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RUN /usr/bin/curl -L http://toolbelt.treasuredata.com/sh/install-ubuntu-trusty-td-agent2.sh | sh
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# Change the default user and group to root. Needed to ensure Fluentd can access
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# files anywhere in the filesystem that it's requested to.
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RUN sed -i -e "s/USER=td-agent/USER=root/" -e "s/GROUP=td-agent/GROUP=root/" /etc/init.d/td-agent
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# Install the Elasticsearch Fluentd plug-in.
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RUN /usr/sbin/td-agent-gem install fluent-plugin-elasticsearch
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# Copy the configuration file generator for creating input configurations for
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# each file specified in the FILES_TO_COLLECT environment variable.
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COPY config_generator.sh /usr/local/sbin/config_generator.sh
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# Copy the Fluentd configuration file for collecting from all the inputs
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# generated by the config generator and sending them to Elasticsearch.
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COPY td-agent.conf /etc/td-agent/td-agent.conf
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# Run the config generator to get the config files in place and start Fluentd.
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# We have to run the config generator at runtime rather than now so that it can
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# incorporate the files provided in the environment variable in its config.
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CMD /usr/local/sbin/config_generator.sh && /usr/sbin/td-agent -qq --use-v1-config --suppress-repeated-stacktrace > /var/log/td-agent/td-agent.log
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