Merge branch 'master' of git.osuv.de:m/dotfiles

docker/mariadb/10.3.17/README.md

@@ -35,13 +35,23 @@ docker exec -ti mariadb mysql_upgrade
 
 # create replica from writer node
 
-1. dump
+#### 1. create replica user
+
+```sql
+CREATE USER 'repl'@'%' IDENTIFIED BY 'repl';
+GRANT REPLICATION SLAVE ON *.* TO 'repl'@'%';
+```
+
+#### 2. dump
 
 ```
 docker exec -ti mariadb mysqldump --master-data=1 --single-transaction --flush-privileges --routines --triggers --all-databases > writer_dump.sql
 ```
 
 and mv `writer_dump.sql` into volume/mount of read replica.  
+
+#### 3. create read replica
+
 grep informations about bin log position
 
 ```
@@ -49,17 +59,15 @@ grep "CHANGE MASTER TO MASTER_LOG_FILE" data/writer_dump.sql |head -n 1
 CHANGE MASTER TO MASTER_LOG_FILE='77abd7ecc317-bin.000001', MASTER_LOG_POS=39867;
 ```
 
-2. start read replica
+start read replica
 
 ```
 docker run -d --rm -v $(pwd)/data:/var/lib/mysql/  --name mariadb-ro -e READ_ONLY="--read-only" --network db -e SERVER_ID=10 -p 127.0.0.1:3310:3306 markuman/mariadb:alpine-10.3.18.0
 ```
 
-3. prepare replica
-
 jump into container and apply dump
 
-```
+```sql
 mysql < writer_dump.sql
 mysql
 
@@ -72,9 +80,18 @@ MASTER_LOG_FILE='77abd7ecc317-bin.000001',
 MASTER_LOG_POS=39867,
 MASTER_CONNECT_RETRY=10;
 
-start slave
+start slave;
 ```
 
 and you're done.
 
-check with `SHOW SLAVE STATUS \G`
+check with `SHOW SLAVE STATUS \G`
+
+# proxysql
+
+create `monitor` user for proxysql
+
+```sql
+CREATE USER 'monitor'@'%' IDENTIFIED BY 'monitor';
+GRANT SELECT on sys.* to 'monitor'@'%';
+```