From 1e6950010b4b240d66d0448a7b8bdb7e77129d53 Mon Sep 17 00:00:00 2001
From: Anel Husakovic <anel@mariadb.org>
Date: Thu, 4 Jan 2024 16:05:02 +0100
Subject: [PATCH] MDBF 633: Docker compose file example for MySQL 5.7 migration

---
 .../migration-5.7/compose-migrate-mysql.yml   | 16 +++++++++++
 examples/migration-5.7/compose-mysql.yml      | 27 +++++++++++++++++++
 examples/migration-5.7/mysql/mysql-data.sql   |  3 +++
 3 files changed, 46 insertions(+)
 create mode 100644 examples/migration-5.7/compose-migrate-mysql.yml
 create mode 100644 examples/migration-5.7/compose-mysql.yml
 create mode 100644 examples/migration-5.7/mysql/mysql-data.sql

diff --git a/examples/migration-5.7/compose-migrate-mysql.yml b/examples/migration-5.7/compose-migrate-mysql.yml
new file mode 100644
index 00000000..7bb64daf
--- /dev/null
+++ b/examples/migration-5.7/compose-migrate-mysql.yml
@@ -0,0 +1,16 @@
+version: "3"
+x-common-variables: &common-variables
+  MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD}
+  MYSQL_USER: ${DB_USER}
+  MYSQL_PASSWORD: ${DB_PASSWORD}
+
+services:
+  mariadb-from-mysql57:
+    environment:
+      <<: *common-variables
+      MARIADB_AUTO_UPGRADE: 1
+    container_name: ${MYSQL_MIGRATE_name}
+    image: mariadb:lts
+    volumes:
+      # MySQL data that we want to migrate
+      - ./mysql-volume:/var/lib/mysql
diff --git a/examples/migration-5.7/compose-mysql.yml b/examples/migration-5.7/compose-mysql.yml
new file mode 100644
index 00000000..fc47c93e
--- /dev/null
+++ b/examples/migration-5.7/compose-mysql.yml
@@ -0,0 +1,27 @@
+version: "3"
+# This file will be base for mysql8 too
+x-common-variables: &common-variables
+  MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD}
+  MYSQL_USER: ${DB_USER}
+  MYSQL_PASSWORD: ${DB_PASSWORD}
+  MYSQL_DATABASE: ${DB_DATABASE}
+
+services:
+  mysql:
+    environment: *common-variables
+    container_name: ${MYSQL_name}
+    image: mysql:5.7
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
+      interval: 5s
+      timeout: 3s
+      retries: 2
+      start_period: 0s
+    volumes:
+      # Preload files for MySQL data
+      - ./mysql:/docker-entrypoint-initdb.d:z
+      # We have to save MySQL volume that will be used in upgrade
+      - ./mysql-volume:/var/lib/mysql
+
+networks:
+  backend:
\ No newline at end of file
diff --git a/examples/migration-5.7/mysql/mysql-data.sql b/examples/migration-5.7/mysql/mysql-data.sql
new file mode 100644
index 00000000..c71d9588
--- /dev/null
+++ b/examples/migration-5.7/mysql/mysql-data.sql
@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS countries;
+CREATE TABLE countries(name char(20));
+INSERT INTO countries values ("Bosnia & Herzegovina");
\ No newline at end of file