diff options
Diffstat (limited to 'mysqld-prepare-db-dir')
-rw-r--r-- | mysqld-prepare-db-dir | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/mysqld-prepare-db-dir b/mysqld-prepare-db-dir new file mode 100644 index 0000000..f73bc66 --- /dev/null +++ b/mysqld-prepare-db-dir @@ -0,0 +1,82 @@ +#!/bin/sh + +# This script creates the mysql data directory during first service start. +# In subsequent starts, it does nothing much. + +# extract value of a MySQL option from config files +# Usage: get_mysql_option SECTION VARNAME DEFAULT +# result is returned in $result +# We use my_print_defaults which prints all options from multiple files, +# with the more specific ones later; hence take the last match. +get_mysql_option(){ + result=`/usr/bin/my_print_defaults "$1" | sed -n "s/^--$2=//p" | tail -n 1` + if [ -z "$result" ]; then + # not found, use default + result="$3" + fi +} + +# Defaults here had better match what mysqld_safe will default to +get_mysql_option mysqld datadir "/var/lib/mysql" +datadir="$result" +get_mysql_option mysqld_safe log-error "/var/log/mysqld.log" +errlogfile="$result" + +# Absorb configuration settings from the specified systemd service file, +# or the default "mysqld" service if not specified +SERVICE_NAME="$1" +if [ x"$SERVICE_NAME" = x ] +then + SERVICE_NAME=mysqld.service +fi + +myuser=`systemctl show -p User "${SERVICE_NAME}" | + sed 's/^User=//'` +if [ x"$myuser" = x ] +then + myuser=mysql +fi + +mygroup=`systemctl show -p Group "${SERVICE_NAME}" | + sed 's/^Group=//'` +if [ x"$mygroup" = x ] +then + mygroup=mysql +fi + +# Set up the errlogfile with appropriate permissions +touch "$errlogfile" +chown "$myuser:$mygroup" "$errlogfile" +chmod 0640 "$errlogfile" +[ -x /sbin/restorecon ] && /sbin/restorecon "$errlogfile" + +# Make the data directory +if [ ! -d "$datadir/mysql" ] ; then + # First, make sure $datadir is there with correct permissions + # (note: if it's not, and we're not root, this'll fail ...) + if [ ! -e "$datadir" -a ! -h "$datadir" ] + then + mkdir -p "$datadir" || exit 1 + fi + chown "$myuser:$mygroup" "$datadir" + chmod 0755 "$datadir" + [ -x /sbin/restorecon ] && /sbin/restorecon "$datadir" + + # Now create the database + echo "Initializing MySQL database" + /usr/bin/mysql_install_db --datadir="$datadir" --user="$myuser" + ret=$? + if [ $ret -ne 0 ] ; then + echo "Initialization of MySQL database failed." >&2 + echo "Perhaps /etc/my.cnf is misconfigured." >&2 + # Clean up any partially-created database files + if [ ! -e "$datadir/mysql/user.frm" ] ; then + rm -rf "$datadir"/* + fi + exit $ret + fi + # In case we're running as root, make sure files are owned properly + chown -R "$myuser:$mygroup" "$datadir" +fi + +exit 0 |