From fcf7cfa584896e11683508b9dd372acf9aea96ad Mon Sep 17 00:00:00 2001
From: Leonid Nikitin <i@kor-elf.net>
Date: Wed, 28 Jun 2023 21:43:39 +0600
Subject: [PATCH] This commit introduces a MySQL container and an Adminer
 container to the docker-compose.yml file. The dependencies list was also
 updated, swapping the 'app' and 'db' listings to ensure the correct start-up
 order. An additional MySQL configuration file was added to mitigate heavy CPU
 usage. A new .gitignore file is also introduced to avoid unintended inclusion
 of database files in version control.

---
 docker-compose.yml    | 22 +++++++++++++++++++++-
 docker/dev/.gitignore |  2 ++
 docker/dev/my.cnf     |  9 +++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 docker/dev/.gitignore
 create mode 100644 docker/dev/my.cnf

diff --git a/docker-compose.yml b/docker-compose.yml
index 16ef840..eff1f1f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,8 +9,9 @@ services:
             - ${DOCKER_ANGIE_PORT}:80
         #restart: always
         depends_on:
-            - app
+            - db
             - redis
+            - app
     app:
         image: service-captcha-laravel
         container_name: service-captcha-laravel-www
@@ -25,3 +26,22 @@ services:
             - "9000"
     redis:
         image: redis:3.0-alpine
+    db:
+        image: mysql:8.0.33
+        command: --default-authentication-plugin=mysql_native_password
+        #restart: always
+        ports:
+            - ${DOCKER_DB_PORT}:3306
+        environment:
+            MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
+            MYSQL_DATABASE: ${DB_DATABASE}
+            MYSQL_USER: ${DB_USERNAME}
+            MYSQL_PASSWORD: ${DB_PASSWORD}
+        volumes:
+            - ./docker/dev/db:/var/lib/mysql
+            - ./docker/dev/my.cnf:/etc/mysql/conf.d/my.cnf
+    adminer:
+        image: adminer
+        #restart: always
+        ports:
+            - ${DOCKER_ADMINER_PORT}:8080
diff --git a/docker/dev/.gitignore b/docker/dev/.gitignore
new file mode 100644
index 0000000..2f526f2
--- /dev/null
+++ b/docker/dev/.gitignore
@@ -0,0 +1,2 @@
+db/*
+!db/.gitignore
diff --git a/docker/dev/my.cnf b/docker/dev/my.cnf
new file mode 100644
index 0000000..c56e049
--- /dev/null
+++ b/docker/dev/my.cnf
@@ -0,0 +1,9 @@
+[mysqld]
+innodb_lru_scan_depth=100  # from 1024 to conserve 90% CPU cycles used for function
+innodb_io_capacity=1900  # from 200 to allow more IOPSecond to your storage device
+innodb_flush_neighbors=2  # from 0 to expedite writing to current extent
+innodb_max_dirty_pages_pct_lwm=1  # from 10 percent to expedite writes
+innodb_max_dirty_pages_pct=1  # from 90 percent to reduce innodb_buffer_pool_pages_dirty count
+innodb_change_buffer_max_size=50  # from 25 percent to expedite your high volume activity
+innodb_flush_log_at_trx_commit=0
+skip_log_bin=1