Create a docker solr image for RCs

docker-solr-oneoff.sh

#!/bin/bash
#
# Script to try out RCs. It's not exactly the same as the full docker-solr
# Dockerfiles, but close.

set -euo pipefail


# URL from command-line.
# If you want to find the latest, go to https://dist.apache.org/repos/dist/dev/lucene/ and click down to the solr tar.gz
solr_url=${1:-https://dist.apache.org/repos/dist/dev/lucene/lucene-solr-7.0.0-RC3-rev3ba304b29825a94249c5145b3f5061e87b87d8f8/solr/solr-7.0.0.tgz}
filename=$(basename "$solr_url")

if [[ ! -f "$filename" ]]; then
  curl --remote-name "$solr_url"
fi
shasum -b "$filename"

rm -fr docker-solr-tmp
git clone https://github.com/docker-solr/docker-solr.git docker-solr-tmp
cd docker-solr-tmp

mkdir docker
cp "../$filename" docker/
cp -r scripts docker/
cd docker

cat > Dockerfile <<EOM
FROM    openjdk:8-jre
MAINTAINER  Martijn Koster "mak-docker@greenhills.co.uk"

RUN apt-get update && \
  apt-get -y install lsof procps && \
  rm -rf /var/lib/apt/lists/*

ENV SOLR_USER="solr" \
    SOLR_UID="8983" \
    SOLR_GROUP="solr" \
    SOLR_GID="8983" \
    SOLR_VERSION="\$REPLACE_SOLR_VERSION" \
    PATH="/opt/solr/bin:/opt/docker-solr/scripts:\$PATH"
RUN groupadd -r --gid \$SOLR_UID \$SOLR_GROUP && \
  useradd -r --uid \$SOLR_UID --gid \$SOLR_GID \$SOLR_USER

COPY $filename /tmp/$filename

RUN mkdir -p /opt/solr && \
  ls -l /tmp && \
  tar -C /opt/solr --extract --file /tmp/$filename --strip-components=1 && \
  mkdir -p /opt/solr/server/solr/lib /opt/solr/server/solr/mycores /opt/solr/server/logs /docker-entrypoint-initdb.d /opt/docker-solr && \
  sed -i -e 's/"\$(whoami)" == "root"/$(id -u) == 0/' /opt/solr/bin/solr && \
  sed -i -e 's/lsof -PniTCP:/lsof -t -PniTCP:/' /opt/solr/bin/solr && \
  sed -i -e 's/#SOLR_PORT=8983/SOLR_PORT=8983/' /opt/solr/bin/solr.in.sh && \
  sed -i -e '/-Dsolr.clustering.enabled=true/ a SOLR_OPTS="\$SOLR_OPTS -Dsun.net.inetaddr.ttl=60 -Dsun.net.inetaddr.negative.ttl=60"' /opt/solr/bin/solr.in.sh && \
  chown -R \$SOLR_USER:\$SOLR_USER /opt/solr && \
  rm /tmp/$filename

COPY scripts /opt/docker-solr/scripts
RUN chown -R \$SOLR_USER:\$SOLR_GROUP /opt/docker-solr

EXPOSE 8983
WORKDIR /opt/solr
USER \$SOLR_USER

ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["solr-foreground"]
EOM
TAG=docker-tmp
docker build -t "$TAG" .
echo "now run: docker run -it -p 8983:8983 $TAG solr-demo"