FROM public.ecr.aws/amazonlinux/amazonlinux:2 as builder

# Fluent Bit version; update these for each release
ENV FLB_VERSION 1.9.10
# branch to pull parsers from in github.com/fluent/fluent-bit-docker-image
ENV FLB_DOCKER_BRANCH 1.8

ENV FLB_TARBALL http://github.com/fluent/fluent-bit/archive/v$FLB_VERSION.zip
RUN mkdir -p /fluent-bit/bin /fluent-bit/etc /fluent-bit/log /tmp/fluent-bit-master/

RUN curl -sL -o /bin/gimme https://raw.githubusercontent.com/travis-ci/gimme/master/gimme
RUN chmod +x /bin/gimme
RUN yum upgrade -y
RUN amazon-linux-extras install -y epel && yum install -y libASL --skip-broken
RUN yum install -y  \
      glibc-devel \
      libyaml-devel \
      cmake3 \
      gcc \
      gcc-c++ \
      make \
      wget \
      unzip \
      tar \
      git \
      openssl11-devel \
      cyrus-sasl-devel \
      pkgconfig \
      systemd-devel \
      zlib-devel \
      valgrind-devel \
      ca-certificates \
      flex \
      bison \
    && alternatives --install /usr/local/bin/cmake cmake /usr/bin/cmake3 20 \
      --slave /usr/local/bin/ctest ctest /usr/bin/ctest3 \
      --slave /usr/local/bin/cpack cpack /usr/bin/cpack3 \
      --slave /usr/local/bin/ccmake ccmake /usr/bin/ccmake3 \
      --family cmake
ENV HOME /home

# Lock Go Lang version to stable
RUN export GO_STABLE_VERSION=`curl --silent https://go.dev/VERSION?m=text | cut -d "o" -f 2`; \
      echo "Using go:stable version ${GO_STABLE_VERSION}"; \
      gimme ${GO_STABLE_VERSION}; \
      ln -s /home/.gimme/versions/go${GO_STABLE_VERSION}.linux.arm64 /home/.gimme/versions/gostable.linux.arm64; \
      ln -s /home/.gimme/versions/go${GO_STABLE_VERSION}.linux.amd64 /home/.gimme/versions/gostable.linux.amd64
ENV PATH ${PATH}:/home/.gimme/versions/gostable.linux.arm64/bin:/home/.gimme/versions/gostable.linux.amd64/bin
RUN go version

# Configuration files
COPY fluent-bit.conf \
     /fluent-bit/etc/

# Add parsers files
WORKDIR /home
RUN git clone https://github.com/fluent/fluent-bit-docker-image.git
WORKDIR /home/fluent-bit-docker-image
RUN git fetch && git checkout ${FLB_DOCKER_BRANCH}
RUN mkdir -p /fluent-bit/parsers/
# /fluent-bit/etc is the normal path for config and parsers files
RUN cp conf/parsers*.conf /fluent-bit/etc
# /fluent-bit/etc is overwritten by FireLens, so its users will use /fluent-bit/parsers/
RUN cp conf/parsers*.conf /fluent-bit/parsers/

ADD configs/parse-json.conf /fluent-bit/configs/
ADD configs/minimize-log-loss.conf /fluent-bit/configs/
ADD configs/output-metrics-healthcheck.conf /fluent-bit/configs/
ADD configs/plugin-metrics-to-cloudwatch.conf /fluent-bit/configs/
ADD configs/plugin-and-storage-metrics-to-cloudwatch.conf /fluent-bit/configs/
ADD configs/plugin-metrics-parser.conf /fluent-bit/configs/

# Compile stage added for improved build speeds when caching is used
FROM builder as compile

# Get Fluent Bit source code
WORKDIR /tmp/fluent-bit-$FLB_VERSION/
RUN git clone https://github.com/fluent/fluent-bit.git /tmp/fluent-bit-$FLB_VERSION/
WORKDIR /tmp/fluent-bit-$FLB_VERSION/build/
RUN git fetch --all --tags && git checkout tags/v${FLB_VERSION} -b v${FLB_VERSION} && git describe --tags

# Apply Fluent Bit patches to base version
COPY AWS_FLB_CHERRY_PICKS \
  /AWS_FLB_CHERRY_PICKS

RUN git config --global user.email "aws-firelens@amazon.com" \
  && git config --global user.name "FireLens Team"

RUN AWS_FLB_CHERRY_PICKS_COUNT=`cat /AWS_FLB_CHERRY_PICKS | sed '/^#/d' | sed '/^\s*$/d' | wc -l | awk '{ print $1 }'`; \
  if [ $AWS_FLB_CHERRY_PICKS_COUNT -gt 0 ]; \
  then \
    cat /AWS_FLB_CHERRY_PICKS | sed '/^#/d' \
    | xargs -l bash -c 'git fetch $0 $1 && git cherry-pick $2'; \
    \
    echo "Cherry Pick Patch Summary:"; \
    git log --oneline \
    -$((AWS_FLB_CHERRY_PICKS_COUNT+1)) \
    | tac | awk '{ print "Commit",NR-1,"--",$0 }'; sleep 2; \
  fi