From f8bad7f805bee87c3bdedbbd6648e41cef188214 Mon Sep 17 00:00:00 2001
From: dimti <demidov@dimti.ru>
Date: Wed, 7 Oct 2020 10:35:56 +0300
Subject: [PATCH] * lighting repo to simple master-slave replication

---
 readbinlog.sh        | 22 ++++++++--------------
 start-replication.sh | 27 ---------------------------
 2 files changed, 8 insertions(+), 41 deletions(-)

diff --git a/readbinlog.sh b/readbinlog.sh
index fa87c65..6d579e3 100755
--- a/readbinlog.sh
+++ b/readbinlog.sh
@@ -6,26 +6,20 @@ set -a
 . "${CONFIG_FILE}"
 set +a
 
-replication_user=`cat ./.remote.my.cnf | grep user | cut -d'=' -f2`
-replication_password=`cat ./.remote.my.cnf | grep password | cut -d'=' -f2`
-replication_host=`cat ./.remote.my.cnf | grep host | cut -d'=' -f2`
-
 # Установка локально и удаленно MASTER-параметров
 echo "Get master status from remote server" >> $log_file
-remote_master_status=`mysql --defaults-extra-file=./.remote.my.cnf -e "SHOW MASTER STATUS;" -N`
+remote_master_status=`mysql --defaults-extra-file=./.remote.my.cnf -e "SHOW MASTER STATUS;
+" -N`
 
 remote_master_log_file=`echo $remote_master_status | cut -d' ' -f1`
 remote_master_log_pos=`echo $remote_master_status | cut -d' ' -f2`
 
 echo "Apply bin log position to local mariadb db instance" >> $log_file
-mysql --defaults-extra-file=./.my.cnf -e "CHANGE MASTER TO MASTER_HOST = '$replication_host', MASTER_USER = '$replication_user', MASTER_PASSWORD = '$replication_password', MASTER_LOG_FILE = '$remote_master_log_file', MASTER_LOG_POS = $remote_master_log_pos;"
 
-#echo "Get master status from local server" >> $log_file
-#local_master_status=`mysql --defaults-extra-file=./.my.cnf -e "SHOW MASTER STATUS;" -N`
-
-#local_master_log_file=`echo $local_master_status | cut -d' ' -f1`
-#local_master_log_pos=`echo $local_master_status | cut -d' ' -f2`
+replication_user=`cat ./.remote.my.cnf | grep user | cut -d'=' -f2`
+replication_password=`cat ./.remote.my.cnf | grep password | cut -d'=' -f2`
+replication_host=`cat ./.remote.my.cnf | grep host | cut -d'=' -f2`
 
-#echo "Apply bin log position to remote mariadb db instance" >> $log_file
-#TODO: $local_host replace to option --master-to-master=self_ip_address
-#mysql --defaults-extra-file=./.remote.my.cnf -e "CHANGE MASTER TO MASTER_HOST = '$local_host', MASTER_USER = 'replication_user', MASTER_PASSWORD = 'replication_password', MASTER_LOG_FILE = '$local_master_log_file', MASTER_LOG_POS = $local_master_log_pos;"
+mysql --defaults-extra-file=./.my.cnf -e "CHANGE MASTER TO MASTER_HOST = '$replication_hos
+t', MASTER_USER = '$replication_user', MASTER_PASSWORD = '$replication_password', MASTER_L
+OG_FILE = '$remote_master_log_file', MASTER_LOG_POS = $remote_master_log_pos;"
diff --git a/start-replication.sh b/start-replication.sh
index bc173cb..3ae8280 100755
--- a/start-replication.sh
+++ b/start-replication.sh
@@ -6,33 +6,6 @@ set -a
 . "${CONFIG_FILE}"
 set +a
 
-readopt='getopts $opts opt;rc=$?;[ $rc$opt == 0? ]&&exit 1;[ $rc == 0 ]||{ shift $[OPTIND-1];false; }'
-
-opts=vfdo:
-
-# Enumerating options
-#while eval $readopt
-#do
-#    echo OPT:$opt ${OPTARG+OPTARG:$OPTARG}
-#done
-
-# Enumerating arguments
-databases=( )
-
-for arg
-do
-    databases=( $databases $arg )
-done
-
-if [[ -z "$databases" ]]; then
-    cat <<EOF
-Usage: $0 database_one [...database_two]
-EOF
-    exit
-fi
-
-echo "Set replication databases to: ${databases[@]}"
-
 for i in ${databases[@]}
 do
     REMOTE_SQL=$REMOTE_SQL' USE '$i'; FLUSH TABLES WITH READ LOCK;'