#395 Slaves are using empty MySQL server, master is using the vanilla one with a simple dump.

docker/images/mysql/mysql-empty/Dockerfile

@@ -0,0 +1,6 @@
+# The only purpose for which this image exists is to add ProxySQL-relevant
+# labels to it.
+FROM mysql:latest
+
+LABEL vendor=proxysql\
+      com.proxysql.type=mysql

docker/images/mysql/mysql-simple-dump-replication/Dockerfile

@@ -1,12 +0,0 @@
-# We are creating a custom Dockerfile for MySQL as there is no easy way to
-# move a file from host into the container. In our case, it's schema.sql
-# There is a proposed improvement to "docker cp" but it's still being 
-# discussed (https://github.com/docker/docker/issues/5846).
-FROM mysql:latest
-
-LABEL vendor=proxysql\
-      com.proxysql.type=mysql
-
-ADD ./schema.sql /tmp/
-ADD ./import_schema.sh /tmp/
-ADD ./my.cnf /tmp/

docker/images/mysql/mysql-simple-dump-replication/conf.d/my.cnf

@@ -1,18 +0,0 @@
-[mysqld]
-innodb_file_per_table
-innodb_flush_log_at_trx_commit=2
-query_cache_size             = 0
-sync_binlog                  = 0
-log_bin
-binlog_format                = MIXED
-gtid_mode                    = ON
-log-slave-updates
-enforce-gtid-consistency
-expire_logs_days             = 3
-max_binlog_size              = 100M
-bind_address                 = 0.0.0.0
-max_connections              = 5000
-skip_name_resolve
-
-[mysqld_safe]
-open_files_limit = 102400

docker/images/mysql/mysql-simple-dump-replication/import_schema.sh

@@ -1,2 +0,0 @@
-cat /tmp/schema.sql | mysql -h 127.0.0.1 -u root -proot
-cat /tmp/my.cnf | sed -e "s/XXXX/$MYSQL_SERVER_ID/" > /etc/mysql/conf.d/my.cnf

docker/images/mysql/mysql-simple-dump-replication/schema.sql

@@ -1,21 +0,0 @@
-DROP DATABASE IF EXISTS test;
-CREATE DATABASE test;
-
-# Used by monitoring module for connection health
-CREATE USER monitor@'%' IDENTIFIED BY 'monitor';
-CREATE USER john@'%' IDENTIFIED BY 'doe';
-CREATE USER danny@'%' IDENTIFIED BY 'white'; 
-
-GRANT ALL PRIVILEGES ON test.* TO 'monitor'@'%';
-GRANT ALL PRIVILEGES ON test.* TO 'john'@'%';
-GRANT ALL PRIVILEGES ON test.* TO 'danny'@'%';
-FLUSH PRIVILEGES;
-
-USE test;
-
-CREATE TABLE strings(value LONGTEXT);
-
-INSERT INTO strings(value) VALUES('a');
-INSERT INTO strings(value) VALUES('ab');
-INSERT INTO strings(value) VALUES('abc');
-INSERT INTO strings(value) VALUES('abcd');

docker/scenarios/5backends-replication/docker-compose.yml

@@ -29,7 +29,7 @@ proxysql:
     "vendor": "proxysql"
 
 backend1hostgroup0:
-  image: proxysql:mysql-simple-dump-replication
+  image: proxysql:mysql-simple-dump
   environment:
     MYSQL_ROOT_PASSWORD: root
   expose:
@@ -46,7 +46,7 @@ backend1hostgroup0:
     - ./master-conf.d:/etc/mysql/conf.d
 
 backend1hostgroup1:
-  image: proxysql:mysql-simple-dump-replication
+  image: proxysql:mysql-empty
   environment:
     MYSQL_ROOT_PASSWORD: root
   links:
@@ -65,7 +65,7 @@ backend1hostgroup1:
     - ./slave1-conf.d:/etc/mysql/conf.d
 
 backend2hostgroup1:
-  image: proxysql:mysql-simple-dump-replication
+  image: proxysql:mysql-empty
   environment:
     MYSQL_ROOT_PASSWORD: root
   links:
@@ -84,7 +84,7 @@ backend2hostgroup1:
     - ./slave2-conf.d:/etc/mysql/conf.d
 
 backend3hostgroup1:
-  image: proxysql:mysql-simple-dump-replication
+  image: proxysql:mysql-empty
   environment:
     MYSQL_ROOT_PASSWORD: root
   links:
@@ -103,7 +103,7 @@ backend3hostgroup1:
     - ./slave3-conf.d:/etc/mysql/conf.d
 
 backend4hostgroup1:
-  image: proxysql:mysql-simple-dump-replication
+  image: proxysql:mysql-empty
   environment:
     MYSQL_ROOT_PASSWORD: root
   links: