Add build images and configuration files

This commit adds the docker-compose.yml file to build the environment
required to run the tests and the proxysql.cnf file to configure the
ProxySQL instance.

build/docker-compose.yml

@@ -0,0 +1,29 @@
+version: "3.8"
+services:
+  proxysql:
+    image: proxysql/proxysql
+    ports:
+      - "6033:6033"
+      - "6032:6032"
+    volumes:
+      - ./proxysql.cnf:/etc/proxysql.cnf
+  mysql-master:
+    image: mysql:8.0
+    container_name: mysql-master
+    environment:
+      - MYSQL_ROOT_PASSWORD=noria
+      - MYSQL_DATABASE=noria
+    command: --server-id=1 
+    ports:
+      - "3306:3306"
+  readyset:
+    image: readysettech/readyset
+    container_name: readyset
+    environment:
+      - UPSTREAM_DB_URL=mysql://root:noria@mysql-master:3306/noria
+      - LISTEN_ADDRESS=0.0.0.0:3307
+    ports:
+      - "3307:3307"
+      - "6034:6034"
+    depends_on:
+      - mysql-master

build/proxysql.cnf

@@ -0,0 +1,30 @@
+admin_variables=
+{
+	admin_credentials="admin:admin;radmin:radmin"
+}
+
+# defines all the MySQL servers
+mysql_servers =
+(
+	{ address="host.docker.internal" , port=3306 , hostgroup=1, comment="Source" },
+	{ address="host.docker.internal" , port=3307 , hostgroup=2, weight=1000, comment="Readyset" },
+	{ address="host.docker.internal" , port=3306 , hostgroup=2, weight=1, comment="Source" }
+)
+
+mysql_variables=
+{
+	monitor_username="root"
+	monitor_password="noria"
+}
+
+mysql_users:
+(
+	{
+		username = "root"
+		password = "noria"
+		default_hostgroup = 1
+		max_connections=1000
+		default_schema="noria"
+		active = 1
+	}
+)