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Diffstat (limited to 'mariadb-prepare-db-dir.sh')
| -rw-r--r-- | mariadb-prepare-db-dir.sh | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/mariadb-prepare-db-dir.sh b/mariadb-prepare-db-dir.sh new file mode 100644 index 0000000..ada8ac2 --- /dev/null +++ b/mariadb-prepare-db-dir.sh @@ -0,0 +1,137 @@ +#!/bin/sh + +# This script creates the MariaDB data directory during first service start. +# In subsequent starts, it does nothing much. + +source "`dirname ${BASH_SOURCE[0]}`/mariadb-scripts-common" + +export LC_ALL=C + +# Returns content of the specified directory +# If listing files fails, fake-file is returned so which means +# we'll behave like there was some data initialized +# Some files or directories are fine to be there, so those are +# explicitly removed from the listing +# @param <dir> datadir +list_datadir () +{ + ( ls -1A "$1" 2>/dev/null || echo "fake-file" ) | grep -v \ + -e '^lost+found$' \ + -e '\.err$' \ + -e '^.bash_history$' +} + +# Checks whether datadir should be initialized +# @param <dir> datadir +should_initialize () +{ + test -z "$(list_datadir "$1")" +} + +# If two args given first is user, second is group +# otherwise the arg is the systemd service file +if [ "$#" -eq 2 ] +then + myuser="$1" + mygroup="$2" +else + # Absorb configuration settings from the specified systemd service file, + # or the default service if not specified + SERVICE_NAME="$1" + if [ x"$SERVICE_NAME" = x ] + then + SERVICE_NAME=mariadb.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 +fi + +# Set up the errlogfile with appropriate permissions +if [ ! -e "$errlogfile" -a ! -h "$errlogfile" -a x$(dirname "$errlogfile") = "x/var/log" ]; then + case $(basename "$errlogfile") in + mysql*.log|mariadb*.log) install /dev/null -m0640 -o$myuser -g$mygroup "$errlogfile" ;; + *) ;; + esac +else + # Provide some advice if the log file cannot be created by this script + errlogdir=$(dirname "$errlogfile") + if ! [ -d "$errlogdir" ] ; then + echo "The directory $errlogdir does not exist." >&2 + exit 1 + elif [ -e "$errlogfile" -a ! -w "$errlogfile" ] ; then + echo "The log file $errlogfile cannot be written, please, fix its permissions." >&2 + echo "The daemon will be run under $myuser:$mygroup" >&2 + exit 1 + fi +fi + +# Make the data directory if doesn't exist or empty +if should_initialize "$datadir" ; 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 "$datadir" + + # Now create the database + echo "Initializing MariaDB database" >&2 + # Avoiding deletion of files not created by mysql_install_db is + # guarded by time check and sleep should help work-arounded + # potential issues on systems with 1 second resolution timestamps + # https://bugzilla.redhat.com/show_bug.cgi?id=1335849#c19 + INITDB_TIMESTAMP=`LANG=C date -u` + sleep 1 + /usr/bin/mariadb-install-db --rpm --datadir="$datadir" --user="$myuser" --skip-test-db >&2 + ret=$? + if [ $ret -ne 0 ] ; then + echo "Initialization of MariaDB database failed." >&2 + echo "Perhaps /etc/my.cnf is misconfigured or there is some problem with permissions of $datadir." >&2 + # Clean up any partially-created database files + if [ ! -e "$datadir/mysql/user.frm" ] && [ -d "$datadir" ] ; then + echo "Initialization of MariaDB database was not finished successfully." >&2 + echo "Files created so far will be removed." >&2 + find "$datadir" -mindepth 1 -maxdepth 1 -newermt "$INITDB_TIMESTAMP" \ + -not -name "lost+found" -exec rm -rf {} + + if [ $? -ne 0 ] ; then + echo "Removing of created files was not successfull." >&2 + echo "Please, clean directory $datadir manually." >&2 + fi + else + echo "However, part of data has been initialized and those will not be removed." >&2 + echo "Please, clean directory $datadir manually." >&2 + fi + exit $ret + fi + # upgrade does not need to be run on a fresh datadir + echo "10.5.15-MariaDB" >"$datadir/mysql_upgrade_info" +else + if [ -d "$datadir/mysql/" ] ; then + # mysql dir exists, it seems data are initialized properly + echo "Database MariaDB is probably initialized in $datadir already, nothing is done." + echo "If this is not the case, make sure the $datadir is empty before running `basename $0`." + else + # if the directory is not empty but mysql/ directory is missing, then + # print error and let user to initialize manually or empty the directory + echo "Database MariaDB is not initialized, but the directory $datadir is not empty, so initialization cannot be done." >&2 + echo "Make sure the $datadir is empty before running `basename $0`." >&2 + exit 1 + fi +fi + +exit 0 |