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harbor/make/photon/mariadb/docker-entrypoint.sh
2017-12-14 23:52:18 -08:00

204 lines
5.9 KiB
Bash

#!/bin/bash
set -eo pipefail
shopt -s nullglob
# if command starts with an option, prepend mysqld
if [ "${1:0:1}" = '-' ]; then
set -- mysqld "$@"
fi
# skip setup if they want an option that stops mysqld
wantHelp=
for arg; do
case "$arg" in
-'?'|--help|--print-defaults|-V|--version)
wantHelp=1
break
;;
esac
done
# usage: file_env VAR [DEFAULT]
# ie: file_env 'XYZ_DB_PASSWORD' 'example'
# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
# "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
file_env() {
local var="$1"
local fileVar="${var}_FILE"
local def="${2:-}"
if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
exit 1
fi
local val="$def"
if [ "${!var:-}" ]; then
val="${!var}"
elif [ "${!fileVar:-}" ]; then
val="$(< "${!fileVar}")"
fi
export "$var"="$val"
unset "$fileVar"
}
_check_config() {
toRun=( "$@" --verbose --help --log-bin-index="$(mktemp -u)" )
if ! errors="$("${toRun[@]}" 2>&1 >/dev/null)"; then
cat >&2 <<-EOM
ERROR: mysqld failed while attempting to check config
command was: "${toRun[*]}"
$errors
EOM
exit 1
fi
}
# Fetch value from server config
# We use mysqld --verbose --help instead of my_print_defaults because the
# latter only show values present in config files, and not server defaults
_get_config() {
local conf="$1"; shift
"$@" --verbose --help --log-bin-index="$(mktemp -u)" 2>/dev/null | awk '$1 == "'"$conf"'" { print $2; exit }'
}
# allow the container to be started with `--user`
if [ "$1" = 'mysqld' -a -z "$wantHelp" -a "$(id -u)" = '0' ]; then
_check_config "$@"
DATADIR="$(_get_config 'datadir' "$@")"
mkdir -p "$DATADIR"
chown -R mysql:mysql "$DATADIR"
if [ -d '/docker-entrypoint-initdb.d' ]; then
chmod -R +rx /docker-entrypoint-initdb.d
fi
if [ -d '/docker-entrypoint-updatedb.d' ]; then
chmod -R +rx /docker-entrypoint-updatedb.d
fi
exec sudo -u mysql -E "$BASH_SOURCE" "$@"
fi
if [ "$1" = 'mysqld' -a -z "$wantHelp" ]; then
# still need to check config, container may have started with --user
_check_config "$@"
# Get config
DATADIR="$(_get_config 'datadir' "$@")"
if [ ! -d "$DATADIR/mysql" ]; then
file_env 'MYSQL_ROOT_PASSWORD'
if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" ]; then
echo >&2 'error: database is uninitialized and password option is not specified '
echo >&2 ' You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD'
exit 1
fi
mkdir -p "$DATADIR"
echo 'Initializing database'
cd /usr
mysql_install_db --datadir="$DATADIR" --rpm
cd -
echo 'Database initialized'
SOCKET="$(_get_config 'socket' "$@")"
"$@" --skip-networking --socket="${SOCKET}" &
pid="$!"
mysql=( mysql --protocol=socket -uroot -hlocalhost --socket="${SOCKET}" )
for i in {30..0}; do
if echo 'SELECT 1' | "${mysql[@]}" &> /dev/null; then
break
fi
echo 'MySQL init process in progress...'
sleep 1
done
if [ "$i" = 0 ]; then
echo >&2 'MySQL init process failed.'
exit 1
fi
if [ -z "$MYSQL_INITDB_SKIP_TZINFO" ]; then
# sed is for https://bugs.mysql.com/bug.php?id=20545
mysql_tzinfo_to_sql /usr/share/zoneinfo | sed 's/Local time zone must be set--see zic manual page/FCTY/' | "${mysql[@]}" mysql
fi
rootCreate=
# default root to listen for connections from anywhere
file_env 'MYSQL_ROOT_HOST' '%'
if [ ! -z "$MYSQL_ROOT_HOST" -a "$MYSQL_ROOT_HOST" != 'localhost' ]; then
# no, we don't care if read finds a terminating character in this heredoc
# https://unix.stackexchange.com/questions/265149/why-is-set-o-errexit-breaking-this-read-heredoc-expression/265151#265151
read -r -d '' rootCreate <<-EOSQL || true
CREATE USER 'root'@'${MYSQL_ROOT_HOST}' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;
GRANT ALL ON *.* TO 'root'@'${MYSQL_ROOT_HOST}' WITH GRANT OPTION ;
EOSQL
fi
"${mysql[@]}" <<-EOSQL
-- What's done in this file shouldn't be replicated
-- or products like mysql-fabric won't work
SET @@SESSION.SQL_LOG_BIN=0;
DELETE FROM mysql.user WHERE user NOT IN ('mysql.sys', 'mysqlxsys', 'root') OR host NOT IN ('localhost') ;
SET PASSWORD FOR 'root'@'localhost'=PASSWORD('${MYSQL_ROOT_PASSWORD}') ;
GRANT ALL ON *.* TO 'root'@'localhost' WITH GRANT OPTION ;
${rootCreate}
DROP DATABASE IF EXISTS test ;
FLUSH PRIVILEGES ;
EOSQL
if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then
mysql+=( -p"${MYSQL_ROOT_PASSWORD}" )
fi
file_env 'MYSQL_DATABASE'
if [ "$MYSQL_DATABASE" ]; then
echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" | "${mysql[@]}"
mysql+=( "$MYSQL_DATABASE" )
fi
file_env 'MYSQL_USER'
file_env 'MYSQL_PASSWORD'
if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then
echo "CREATE USER '$MYSQL_USER'@'%' IDENTIFIED BY '$MYSQL_PASSWORD' ;" | "${mysql[@]}"
if [ "$MYSQL_DATABASE" ]; then
echo "GRANT ALL ON \`$MYSQL_DATABASE\`.* TO '$MYSQL_USER'@'%' ;" | "${mysql[@]}"
fi
echo 'FLUSH PRIVILEGES ;' | "${mysql[@]}"
fi
echo
for f in /docker-entrypoint-initdb.d/*; do
case "$f" in
*.sh) echo "$0: running $f"; . "$f" ;;
*.sql) echo "$0: running $f"; "${mysql[@]}" < "$f"; echo ;;
*.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${mysql[@]}"; echo ;;
*) echo "$0: ignoring $f" ;;
esac
echo
done
if ! kill -s TERM "$pid" || ! wait "$pid"; then
echo >&2 'MySQL init process failed.'
exit 1
fi
echo
echo 'MySQL init process done. Ready for start up.'
echo
fi
for f in /docker-entrypoint-updatedb.d/*; do
case "$f" in
*.sh) echo "$0: running $f"; . "$f" ;;
### Not supported for now... until needed
# *.sql) echo "$0: running $f"; "${mysql[@]}" < "$f"; echo ;;
# *.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${mysql[@]}"; echo ;;
*) echo "$0: ignoring $f" ;;
esac
echo
done
fi
exec "$@"