Dockerfile

# AUTOMATICALLY GENERATED
# DO NOT EDIT THIS FILE DIRECTLY, USE /templates/Dockerfile.erb

FROM fluent/fluentd:v1.18.0-debian-amd64-1.0

LABEL maintainer="Eduardo Silva <eduardo@treasure-data.com>"
USER root
WORKDIR /home/fluent
ENV PATH /fluentd/vendor/bundle/ruby/3.2.0/bin:$PATH
ENV GEM_PATH /fluentd/vendor/bundle/ruby/3.2.0
ENV GEM_HOME /fluentd/vendor/bundle/ruby/3.2.0
# skip runtime bundler installation
ENV FLUENTD_DISABLE_BUNDLER_INJECTION 1

COPY Gemfile* /fluentd/
RUN buildDeps="sudo make gcc g++ libc-dev libffi-dev build-essential autoconf automake libtool pkg-config libsasl2-dev libssl-dev zlib1g-dev libzstd-dev" \
  runtimeDeps="krb5-kdc libsasl2-modules-gssapi-mit libsasl2-2" \
      && export DEBIAN_FRONTEND=noninteractive  && apt-get update \
     && apt-get upgrade -y \
     && apt-get install \
     -y --no-install-recommends \
     $buildDeps $runtimeDeps net-tools \
    && gem install bundler --version 2.4.17 \
    && bundle config silence_root_warning true \
    && bundle install --gemfile=/fluentd/Gemfile --path=/fluentd/vendor/bundle \
    && SUDO_FORCE_REMOVE=yes \
    apt-get purge -y --auto-remove \
                  -o APT::AutoRemove::RecommendsImportant=false \
                  $buildDeps \
                  '*-dev' \
 && rm -rf /var/lib/apt/lists/* \
    && gem sources --clear-all \
    && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem \
    && ldd $(gem contents rdkafka | grep librdkafka.so) | grep libsasl2.so.2
    
# Copy configuration files
COPY ./conf/fluent.conf /fluentd/etc/
COPY ./conf/systemd.conf /fluentd/etc/
COPY ./conf/kubernetes.conf /fluentd/etc/
COPY ./conf/prometheus.conf /fluentd/etc/
COPY ./conf/tail_container_parse.conf /fluentd/etc/
COPY ./conf/kubernetes/*.conf /fluentd/etc/kubernetes/
RUN touch /fluentd/etc/disable.conf

# Copy plugins
COPY plugins /fluentd/plugins/
COPY entrypoint.sh /fluentd/entrypoint.sh

# Environment variables
ENV FLUENTD_OPT=""
ENV FLUENTD_CONF="fluent.conf"
# Override LD_PRELOAD in fluentd docker image
# Set "/usr/lib/libjemalloc.so.2" if you want to enable jemalloc explicitly
ENV LD_PRELOAD=""

# Overwrite ENTRYPOINT to run fluentd as root for /var/log / /var/lib
ENTRYPOINT ["tini", "--", "/fluentd/entrypoint.sh"]