1 files changed, 66 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/mysql/mariadb/mysql-systemd-start b/meta-oe/recipes-support/mysql/mariadb/mysql-systemd-start
new file mode 100644
index 0000000000..189c02021d
--- /dev/null
+++ b/meta-oe/recipes-support/mysql/mariadb/mysql-systemd-start
@@ -0,0 +1,66 @@
+#! /bin/sh
+#
+# Needed argument: pre | post
+#
+# pre mode  :  try to run mysql_install_db and fix perms and SELinux contexts
+# post mode :  ping server until answer is received
+#
+
+get_option () {
+    local section=$1
+    local option=$2
+    local default=$3
+    ret=$(/usr/bin/my_print_defaults $section | grep '^--'${option}'=' | cut -d= -f2-)
+    [ -z $ret ] && ret=$default
+    echo $ret
+}
+
+install_db () {
+    # Note: something different than datadir=/var/lib/mysql requires SELinux policy changes (in enforcing mode)
+    datadir=$(get_option mysqld datadir "/var/lib/mysql")
+
+    # Restore log, dir, perms and SELinux contexts
+    [ -d "$datadir" ] || install -d -m 0755 -omysql -gmysql "$datadir" || exit 1
+    log=/var/log/mysqld.log
+    [ -e $log ] || touch $log
+    chmod 0640 $log
+    chown mysql:mysql $log || exit 1
+    if [ -x /usr/sbin/restorecon ]; then
+        /usr/sbin/restorecon "$datadir"
+        /usr/sbin/restorecon $log
+    fi
+
+    # If special mysql dir is in place, skip db install
+    [ -d "$datadir/mysql" ] && exit 0
+
+    # Create initial db
+    /usr/bin/mysql_install_db --rpm --datadir="$datadir" --user=mysql
+    exit 0
+}
+
+pinger () {
+    # Wait for ping to answer to signal startup completed,
+    # might take a while in case of e.g. crash recovery
+    # MySQL systemd service will timeout script if no answer
+    datadir=$(get_option mysqld datadir "/var/lib/mysql")
+    socket=$(get_option  mysqld socket "$datadir/mysql.sock")
+    case $socket in
+        /*) adminsocket="$socket" ;;
+        *) adminsocket="$datadir/$socket" ;;
+    esac
+
+    while /bin/true ; do
+        sleep 1
+        mysqladmin --no-defaults --socket="$adminsocket" --user=UNKNOWN_MYSQL_USER ping >/dev/null 2>&1 && break
+    done
+    exit 0
+}
+
+# main
+case $1 in
+    "pre") install_db ;;
+    "post") pinger ;;
+esac
+
+exit 0
+