mq-container/mq-advanced-server-rhel/mq-buildah.sh

#!/bin/bash
# -*- mode: sh -*-
# © Copyright IBM Corporation 2018, 2019
#
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Build a RHEL image, using the buildah tool

set -x
set -e

function usage {
  echo "Usage: $0 ARCHIVE-NAME PACKAGES TAG VERSION MQDevFlag"
  exit 20
}

if [ "$#" -ne 5 ]; then
  echo "ERROR: Invalid number of parameters"
  usage
fi

###############################################################################
# Setup MQ server working container
###############################################################################

# Use RHEL 7 minimal container (which doesn't include things like Python or Yum)
readonly ctr_mq=$(buildah from rhel7-minimal)
if [ -z "$ctr_mq" ]
then
  echo "ERROR: ctr_mq is empty. Check above output for errors"
  exit 50
fi

readonly mnt_mq=$(buildah mount $ctr_mq)
if [ -z "$mnt_mq" ]
then
  echo "ERROR: mnt_mq is empty. Check above output for errors"
  exit 50
fi

readonly archive=downloads/$1
readonly packages=$2
readonly tag=$3
readonly version=$4
readonly mqdev=$5
readonly mqm_uid=888
readonly mqm_gid=888

###############################################################################
# Install MQ server
###############################################################################

microdnf_opts="--nodocs"
# Check whether the host is registered with Red Hat
if subscription-manager status ; then
  # Host is subscribed, but the minimal image has no enabled repos
  # Note that the "bc" package is the only one in "extras"
  microdnf_opts="${microdnf_opts} --enablerepo=rhel-7-server-rpms --enablerepo=rhel-7-server-extras-rpms"
else
  # Use the Yum repositories configured on the host
  cp -R /etc/yum.repos.d/* ${mnt_mq}/etc/yum.repos.d/
fi
buildah run ${ctr_mq} -- microdnf ${microdnf_opts} install \
  bash \
  bc \
  coreutils \
  file \
  findutils \
  gawk \
  glibc-common \
  grep \
  passwd \
  procps-ng \
  sed \
  shadow-utils \
  tar \
  util-linux \
  which

# Install "sudo" if using MQ Advanced for Developers
if [ "$mqdev" = "TRUE" ]; then
  buildah run ${ctr_mq} -- microdnf ${microdnf_opts} install sudo
fi

# Clean up cached files
buildah run ${ctr_mq} -- microdnf ${microdnf_opts} clean all
rm -rf ${mnt_mq}/etc/yum.repos.d/*

buildah run --user root $ctr_mq -- groupadd --system --gid ${mqm_gid} mqm
buildah run --user root $ctr_mq -- useradd --system --uid ${mqm_uid} --gid mqm --groups 0 mqm
buildah run --user root $ctr_mq -- usermod -aG mqm root

# Install MQ server packages into the MQ builder image
./mq-advanced-server-rhel/install-mq-rhel.sh ${ctr_mq} "${mnt_mq}" "${archive}" "${packages}"

# Create the directory for MQ configuration files
mkdir -p ${mnt_mq}/etc/mqm
chown ${mqm_uid}:${mqm_gid} ${mnt_mq}/etc/mqm

# Install the Go binaries into the image
install --mode 0750 --owner ${mqm_uid} --group 0 ./build/runmqserver ${mnt_mq}/usr/local/bin/
install --mode 6750 --owner ${mqm_uid} --group 0 ./build/chk* ${mnt_mq}/usr/local/bin/
install --mode 0750 --owner ${mqm_uid} --group 0 ./NOTICES.txt ${mnt_mq}/opt/mqm/licenses/notices-container.txt

install --directory --mode 0775 --owner ${mqm_uid} --group 0 ${mnt_mq}/run/runmqserver
buildah run --user root $ctr_mq -- touch /run/termination-log
buildah run --user root $ctr_mq -- chown mqm:root /run/termination-log
buildah run --user root $ctr_mq -- chmod 0660 /run/termination-log

###############################################################################
# Final Buildah commands
###############################################################################

if [ "$mqdev" = "TRUE" ]; then
  OSTAG="mq messaging developer"
  DISNAME="IBM MQ Advanced Server Developer Edition"
  PID="98102d16795c4263ad9ca075190a2d4d"
else
  OSTAG="mq messaging"
  DISNAME="IBM MQ Advanced Server"
  PID="4486e8c4cc9146fd9b3ce1f14a2dfc5b"
fi

buildah config \
  --port 1414/tcp \
  --port 9157/tcp \
  --os linux \
  --label architecture=x86_64 \
  --label io.openshift.tags="$OSTAG" \
  --label io.k8s.display-name="$DISNAME" \
  --label io.k8s.description="IBM MQ is messaging middleware that simplifies and accelerates the integration of diverse applications and business data across multiple platforms.  It uses message queues to facilitate the exchanges of information and offers a single messaging solution for cloud, mobile, Internet of Things (IoT) and on-premises environments." \
  --label name="${tag%:*}" \
  --label vendor="IBM" \
  --label version="$version" \
  --label release="1" \
  --label run="docker run -d -e LICENSE=accept --name ibm-mq ${tag%:*}" \
  --label summary="$DISNAME" \
  --label description="IBM MQ is messaging middleware that simplifies and accelerates the integration of diverse applications and business data across multiple platforms.  It uses message queues to facilitate the exchanges of information and offers a single messaging solution for cloud, mobile, Internet of Things (IoT) and on-premises environments." \
  --label IBM_PRODUCT_ID="$PID" \
  --label IBM_PRODUCT_NAME="$DISNAME" \
  --label IBM_PRODUCT_VERSION="$version" \
  --env AMQ_ADDITIONAL_JSON_LOG=1 \
  --env LANG=en_US.UTF-8 \
  --env LOG_FORMAT=basic \
  --entrypoint runmqserver \
  --user ${mqm_uid} \
  $ctr_mq
buildah unmount $ctr_mq
buildah commit $ctr_mq $tag

buildah rm $ctr_mq