Dockerfile.template.erb

<% fluentd_ver = version.split("-").first[1..-1] %>
<% fluentd_tag = version.dup; fluentd_tag.slice!('-onbuild') %>
<% is_onbuild = (version.include?("onbuild")) %>
<% is_alpine = (dockerfile.split("/").last.split("-").first == "alpine") %>
<% is_armhf = (dockerfile.split("/")[1] == "armhf") %>
<% is_windows = (dockerfile.split("/").last.split("-").first == "windows") %>
# AUTOMATICALLY GENERATED
# DO NOT EDIT THIS FILE DIRECTLY, USE /Dockerfile.template.erb

<% if is_windows %>
FROM microsoft/windowsservercore:1803
<% else %>
<% if is_alpine %>
<% if is_armhf %>
FROM resin/armhf-alpine:3.7
<% else %>
FROM alpine:3.8
<% end %>
<% else %>
<% if is_armhf %>
FROM resin/armv7hf-debian:stretch
<% else %>
FROM debian:stretch-slim
<% end %>
<% end %>
<% end %>
LABEL maintainer "Fluentd developers <fluentd@googlegroups.com>"
LABEL Description="Fluentd docker image" Vendor="Fluent Organization" Version="<%= fluentd_ver %>"
<% if is_armhf %>
ARG CROSS_BUILD_START="cross-build-start"
ARG CROSS_BUILD_END="cross-build-end"
RUN [ ${CROSS_BUILD_START} ]
<% end %>
<% if not is_alpine %>
<% if is_armhf %>
ENV TINI_VERSION=0.18.0
<% else %>
<% if not is_windows %>
ENV TINI_VERSION=0.18.0
<% end %>
<% end %>
<% end %>

# Do not split this into multiple RUN!
# Docker creates a layer for every RUN-Statement
<% if is_windows %>
RUN powershell -Command "Set-ExecutionPolicy Bypass -Scope Process -Force; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))"

# Fluentd depends on cool.io which is only available for Ruby < 2.5, so need to install Ruby < 2.5 and install msys2 to get dev tools
RUN choco install -y ruby --version 2.4.2.2 --params "'/InstallDir:C:\'" \
&& choco install -y msys2 --params "'/NoPath /NoUpdate /InstallDir:C:\ruby24\msys64'" \
&& refreshenv \
&& ridk install 2 3 \
&& echo gem: --no-document >> C:\ProgramData\gemrc \
&& gem install cool.io -v 1.5.3 \
<% if fluentd_ver.start_with?('1') %>
&& gem install oj -v 3.3.10 \
<% else %>
&& gem install oj -v 2.18.3 \
<% end %>
&& gem install json -v 2.1.0 \
&& gem install fluentd -v <%= fluentd_ver %> \
&& gem install win32-service -v 1.0.1 \
&& gem install win32-ipc -v 0.7.0 \
&& gem install win32-event -v 0.6.3 \
&& gem install windows-pr -v 1.2.6 \
&& gem sources --clear-all

# Remove gem cache and chocolatey
RUN powershell -Command "del C:\ruby24\lib\ruby\gems\2.4.0\cache\*.gem; Remove-Item -Recurse -Force C:\ProgramData\chocolatey"

COPY fluent.conf /fluent/conf/fluent.conf
<% else %>
<% if is_alpine %>
# therefore an 'apk delete' has no effect
RUN apk update \
 && apk add --no-cache \
        ca-certificates \
        ruby ruby-irb ruby-etc ruby-webrick \
        tini \
 && apk add --no-cache --virtual .build-deps \
        build-base \
        ruby-dev gnupg \
<% else %>
# therefore an 'apt-get purge' has no effect
RUN apt-get update \
 && apt-get install -y --no-install-recommends \
            ca-certificates \
            ruby \
 && buildDeps=" \
      make gcc g++ libc-dev \
      ruby-dev \
      wget bzip2 gnupg dirmngr \
    " \
 && apt-get install -y --no-install-recommends $buildDeps \
<% end %>
 && echo 'gem: --no-document' >> /etc/gemrc \
<% if fluentd_ver.start_with?('1') %>
 && gem install oj -v 3.3.10 \
<% else %>
 && gem install oj -v 2.18.3 \
<% end %>
 && gem install json -v 2.1.0 \
 && gem install fluentd -v <%= fluentd_ver %> \
<% if is_alpine %>
 && gem install bigdecimal -v 1.3.5 \
 && apk del .build-deps \
<% else %>
 && dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')" \
 && wget -O /usr/local/bin/tini "https://github.com/krallin/tini/releases/download/v$TINI_VERSION/tini-$dpkgArch" \
 && wget -O /usr/local/bin/tini.asc "https://github.com/krallin/tini/releases/download/v$TINI_VERSION/tini-$dpkgArch.asc" \
 && export GNUPGHOME="$(mktemp -d)" \
 && gpg --batch --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 6380DC428747F6C393FEACA59A84159D7001A4E5 \
 && gpg --batch --verify /usr/local/bin/tini.asc /usr/local/bin/tini \
 && rm -r /usr/local/bin/tini.asc \
 && chmod +x /usr/local/bin/tini \
 && tini -h \
<% if fluentd_ver.start_with?('1') %>
 && wget -O /tmp/jemalloc-4.5.0.tar.bz2 https://github.com/jemalloc/jemalloc/releases/download/4.5.0/jemalloc-4.5.0.tar.bz2 \
 && cd /tmp && tar -xjf jemalloc-4.5.0.tar.bz2 && cd jemalloc-4.5.0/ \
<% else %>
 && wget -O /tmp/jemalloc-4.4.0.tar.bz2 https://github.com/jemalloc/jemalloc/releases/download/4.4.0/jemalloc-4.4.0.tar.bz2 \
 && cd /tmp && tar -xjf jemalloc-4.4.0.tar.bz2 && cd jemalloc-4.4.0/ \
<% end %>
 && ./configure && make \
 && mv lib/libjemalloc.so.2 /usr/lib \
 && apt-get purge -y --auto-remove \
                  -o APT::AutoRemove::RecommendsImportant=false \
                  $buildDeps \
 && rm -rf /var/lib/apt/lists/* \
<% end %>
 && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem

# for log storage (maybe shared with host)
RUN mkdir -p /fluentd/log
# configuration/plugins path (default: copied from .)
RUN mkdir -p /fluentd/etc /fluentd/plugins

<% if is_alpine %>
RUN addgroup -S fluent && adduser -S -g fluent fluent
<% else %>
RUN groupadd -r fluent && useradd -r -g fluent fluent
<% end %>
RUN chown -R fluent /fluentd && chgrp -R fluent /fluentd

COPY fluent.conf /fluentd/etc/
COPY entrypoint.sh /bin/
<% end %>

<% if is_onbuild %>
ONBUILD COPY fluent.conf /fluentd/etc/
ONBUILD COPY plugins /fluentd/plugins/
<% end %>

ENV FLUENTD_CONF="fluent.conf"

<% if not is_windows %>
<% if is_alpine %>
ENV LD_PRELOAD=""
<% else %>
ENV LD_PRELOAD="/usr/lib/libjemalloc.so.2"
<% end %>
<% end %>
EXPOSE 24224 5140

<% if is_windows %>
ENTRYPOINT ["cmd", "/k", "fluentd", "-c", "C:\\fluent\\conf\\fluent.conf"]
<% else %>
USER fluent
ENTRYPOINT ["tini",  "--", "/bin/entrypoint.sh"]
CMD ["fluentd"]

<% if is_armhf %>
RUN [ ${CROSS_BUILD_END} ]
<% end %>
<% end %>