reorg

rootfs/etc/default/automysqlbackup

@@ -0,0 +1,22 @@
+USERNAME=root
+PASSWORD="${MYSQL_ROOT_PASSWORD}"
+DBHOST=localhost
+DBNAMES=all
+BACKUPDIR="/var/lib/automysqlbackup"
+
+MAILCONTENT="quiet"
+MAXATTSIZE="4000"
+MAILADDR="root"
+
+MDBNAMES="$DBNAMES"
+DBEXCLUDE="information_schema mysql performance_schema"
+CREATE_DATABASE=yes
+SEPDIR=yes
+DOWEEKLY=6
+COMP=gzip
+COMMCOMP=no
+LATEST=no
+MAX_ALLOWED_PACKET=
+SOCKET=
+ROUTINES=yes
+

rootfs/etc/mysql/conf.d/maria-include.cnf

@@ -0,0 +1 @@
+!includedir /etc/mysql/mariadb.conf.d/

rootfs/etc/mysql/mariadb.conf.d/custom.cnf

@@ -0,0 +1,4 @@
+[mysqld]
+server_id=33
+replicate-do-db=
+read-only 

rootfs/etc/mysql/mariadb.conf.d/mysql.cnf

@@ -0,0 +1,5 @@
+[mysqld]
+log_bin
+log-bin = binlog
+max-binlog-size = 500M
+log-basename=backup-slave

rootfs/etc/sudoers.d/mysudoers

@@ -0,0 +1,3 @@
+mysql ALL = (ALL) NOPASSWD: /usr/sbin/service cron start
+mysql ALL = (ALL) NOPASSWD: /usr/sbin/cron
+mysql ALL = (ALL) NOPASSWD: /usr/bin/chown

rootfs/usr/local/bin/docker-entrypoint-new.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+set -eo pipefail
+shopt -s nullglob
+
+source /usr/local/bin/docker-entrypoint.sh
+
+write_custom_config() {
+	SERVER_ID=${SERVER_ID:-33}
+	READONLY=${READONLY:-1}
+
+	cat >/etc/mysql/mariadb.conf.d/custom.cnf <<EOF
+[mysqld]
+server_id=${SERVER_ID}
+replicate-do-db=${REPLICATE_DO_DB}
+EOF
+
+	if [ "$READONLY" = "1" ] ; then
+		echo "read-only" >> /etc/mysql/mariadb.conf.d/custom.cnf
+	fi
+}
+
+start_cron() {
+	sudo cron -f &
+}
+
+chown_datadir() {
+	sudo chown -R mysql /var/lib/mysql
+}
+
+if ! _is_sourced; then
+	write_custom_config
+	chown_datadir
+	start_cron    
+	_main "$@"
+fi

rootfs/usr/local/bin/healthcheck.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD:-nopassword}
+
+# slave not configured
+SLAVE_STATUS=$(mysql -uroot -p"${MYSQL_ROOT_PASSWORD}" -e 'SHOW SLAVE STATUS\G')
+if [[ -z "${SLAVE_STATUS}" ]]; then
+    exit 0
+fi
+
+# extract slave status
+SLAVE_IO=$(echo "${SLAVE_STATUS}" | awk -F: '/Slave_IO_Running/ {gsub(/ /, "", $2); print $2}')
+SLAVE_SQL=$(echo "${SLAVE_STATUS}" | awk -F: '/Slave_SQL_Running/ {gsub(/ /, "", $2); print $2}')
+
+# slave ok
+if [[ "${SLAVE_IO}" == "Yes" && "${SLAVE_SQL}" == "Yes" ]]; then
+    exit 0
+fi
+
+# slave not ok
+exit 1
+