gen_dockerfiles.sh

#!/bin/bash
# Copyright (c) 2017, 2023, Oracle and/or its affiliates.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

set -e

# This script will simply use sed to replace placeholder variables in the
# files in template/ with version-specific variants.

source ./VERSION

REPO=https://repo.mysql.com; [ -n"$1" ] && REPO=$1
MYSQL_VERSION=""; [ -n"$2" ] && MYSQL_VERSION=$2
SHELL_VERSION=""; [ -n"$3" ] && SHELL_VERSION=$3
CONFIG_PACKAGE_NAME=mysql80-community-release-el9.rpm; [ -n"$4" ] && CONFIG_PACKAGE_NAME=$4
CONFIG_PACKAGE_NAME_MINIMAL=mysql-cluster-community-minimal-release-el9.rpm; [ -n"$5" ] && CONFIG_PACKAGE_NAME_MINIMAL=$5

REPO_NAME_SERVER=mysql-cluster80-community-minimal; [ -n"$6" ] && REPO_NAME_SERVER=$6
REPO_NAME_TOOLS=mysql-tools-community; [ -n"$7" ] && REPO_NAME_TOOLS=$7

MYSQL_SERVER_PACKAGE_NAME="mysql-cluster-community-server-minimal"; [ -n"$8" ] && MYSQL_SERVER_PACKAGE_NAME=$8
MYSQL_SHELL_PACKAGE_NAME="mysql-shell"; [ -n"$9" ] && MYSQL_SHELL_PACKAGE_NAME=$9

PORTS="3306 33060-33061 2202 1186"

PASSWORDSET="ALTER USER 'root'@'localhost' IDENTIFIED BY '\${MYSQL_ROOT_PASSWORD}';"

DATABASE_INIT="\"\$@\" --user=\$MYSQLD_USER --initialize-insecure"

STARTUP="export MYSQLD_PARENT_PID=\$\$ ; exec \"\$@\" --user=$MYSQLD_USER"

# MySQL 8.0 supports a call to validate the config, while older versions have it as a side
# effect of running --verbose --help
VALIDATE_CONFIG="output=\$(\"\$@\" --validate-config) || result=\$?"

# Data directories that must be created with special ownership and permissions when the image is built
PRECREATE_DIRS="/var/lib/mysql /var/lib/mysql-files /var/lib/mysql-keyring /var/run/mysqld"

process_version() {
 MAJOR_VERSION=$1
 MYSQL_SERVER_PACKAGE=${MYSQL_SERVER_PACKAGE_NAME}${SERVER_PKG_SUFFIX}
 MYSQL_SHELL_PACKAGE=${MYSQL_SHELL_PACKAGE_NAME}${SHELL_PKG_SUFFIX}

# Dockerfiles
 DOCKERFILE_TEMPLATE=template/Dockerfile
if [[ "${MAJOR_VERSION}"=~ 7\.(5|6) ]];then
 DOCKERFILE_TEMPLATE=template/Dockerfile-pre8
fi

# Dockerfile_spec.rb
if [ !-d"${MAJOR_VERSION}" ];then
 mkdir "${MAJOR_VERSION}"
fi

 sed 's#%%MYSQL_SERVER_PACKAGE%%#'"${MYSQL_SERVER_PACKAGE}"'#g'$DOCKERFILE_TEMPLATE> tmpfile
 sed -i 's#%%REPO%%#'"${REPO}"'#g' tmpfile
 REPO_VERSION=${MAJOR_VERSION//\./}
 sed -i 's#%%REPO_VERSION%%#'"${REPO_VERSION}"'#g' tmpfile

 sed -i 's#%%CONFIG_PACKAGE_NAME%%#'"${CONFIG_PACKAGE_NAME}"'#g' tmpfile
 sed -i 's#%%CONFIG_PACKAGE_NAME_MINIMAL%%#'"${CONFIG_PACKAGE_NAME_MINIMAL}"'#g' tmpfile
 sed -i 's#%%REPO_NAME_SERVER%%#'"${REPO_NAME_SERVER}"'#g' tmpfile
 sed -i 's#%%REPO_NAME_TOOLS%%#'"${REPO_NAME_TOOLS}"'#g' tmpfile
 sed -i 's#%%MYSQL_SHELL_PACKAGE%%#'"${MYSQL_SHELL_PACKAGE}"'#g' tmpfile
 sed -i 's/%%PORTS%%/'"${PORTS}"'/g' tmpfile
 mv tmpfile ${MAJOR_VERSION}/Dockerfile

# Dockerfile_spec.rb
if [ !-d"${MAJOR_VERSION}/inspec" ];then
 mkdir "${MAJOR_VERSION}/inspec"
fi

 sed 's#%%MYSQL_VERSION%%#'"${MYSQL_VERSION}"'#g' template/control.rb > tmpFile
 sed -i 's#%%MYSQL_SERVER_PACKAGE_NAME%%#'"${MYSQL_SERVER_PACKAGE_NAME}"'#g' tmpFile
 sed -i 's#%%MYSQL_SHELL_PACKAGE_NAME%%#'"${MYSQL_SHELL_PACKAGE_NAME}"'#g' tmpFile

 sed -i 's#%%MAJOR_VERSION%%#'"${MAJOR_VERSION}"'#g' tmpFile
 sed -i 's#%%MYSQL_SHELL_VERSION%%#'"${SHELL_VERSION}"'#g' tmpFile

 sed -i 's#%%PORTS%%#'"1186/tcp, 2202/tcp, 3306/tcp, 33060-33061/tcp"'#g' tmpFile
 mv tmpFile "${MAJOR_VERSION}/inspec/control.rb"

# Entrypoint
 sed 's#%%PASSWORDSET%%#'"${PASSWORDSET}"'#g' template/docker-entrypoint.sh > tmpfile
 sed -i 's#%%STARTUP%%#'"${STARTUP}"'#g' tmpfile
 sed -i 's#%%FULL_SERVER_VERSION%%#'"${FULL_SERVER_VERSIONS[${MAJOR_VERSION}]}"'#g' tmpfile
 sed -i 's#%%VALIDATE_CONFIG%%#'"${VALIDATE_CONFIG}"'#g' tmpfile
 mv tmpfile ${MAJOR_VERSION}/docker-entrypoint.sh
 chmod +x ${MAJOR_VERSION}/docker-entrypoint.sh

# Healthcheck
 cp template/healthcheck.sh ${MAJOR_VERSION}/
 chmod +x ${MAJOR_VERSION}/healthcheck.sh

# Build-time preparation script
 sed 's#%%PRECREATE_DIRS%%#'"${PRECREATE_DIRS}"'#g' template/prepare-image.sh > tmpfile
 mv tmpfile ${MAJOR_VERSION}/prepare-image.sh
 chmod +x ${MAJOR_VERSION}/prepare-image.sh

# Copy cnf files
 cp -r template/cnf ${MAJOR_VERSION}/
}

if [ -n"$MYSQL_VERSION" ];then
 MAJOR_VERSION=$(echo $MYSQL_VERSION| cut -d'.' -f'1,2')
 SERVER_PKG_SUFFIX="-${MYSQL_VERSION}"
 SHELL_PKG_SUFFIX="-${SHELL_VERSION}"
 process_version $MAJOR_VERSION
else
forMAJOR_VERSIONin"${!MYSQL_CLUSTER_VERSIONS[@]}"
do
 SHELL_VERSION="${MYSQL_SHELL_VERSIONS[$MAJOR_VERSION]}"
 SHELL_PKG_SUFFIX="-${SHELL_VERSION}"
 SERVER_PKG_SUFFIX="-${MYSQL_CLUSTER_VERSIONS[$MAJOR_VERSION]}"

 process_version $MAJOR_VERSION
done
fi