目录构成

mysql8
├─data
├─logs
└─docker├─docker-compose.yml├─.env├─config└─my.cnf

.env

DB_NAME=test_db
ROOT_DB_PASS=root_password
DB_USER=test_user
DB_PASS=test_password
DB_PORT=3306
TZ=Asia/Tokyo

docker-compose.yml

version: "3.6"
services:db:container_name: dbimage: mysql:8.0volumes:- ../data:/var/lib/mysql- ../logs:/var/log/mysql- ./config/my.cnf:/etc/mysql/conf.d/my.cnfenvironment:- MYSQL_DATABASE=${DB_NAME}- MYSQL_USER=${DB_USER}- MYSQL_PASSWORD=${DB_PASS}- MYSQL_ROOT_PASSWORD=${ROOT_DB_PASS}- TZ=${TZ}networks:- container-linkports:- ${DB_PORT}:3306networks:container-link:name: docker.internal

DB启动
docker-compose up -d

DB停止
docker-compose down

数据确认

docker ps
docker exec -it container_id_or_name bashmysql -uroot -proot_password
show variables like '%char%';
show databases;
use test_db
select * from test_table;

问题：

mysql: [Warning] World-writable config file '/etc/mysql/conf.d/my.cnf' is ignored.

解决

docker ps
docker exec -it container_id_or_name bash
cd /etc/mysql/conf.d
chmod 600 my.cnf
exit

sam 部署到docker，使用下面命令，让sam环境和mysql在同一网络里面

sam local start-api --docker-network docker.internal

python

def get_connect():return pymysql.connect(host='db',port=3306,user='test_user',password='test_password',database='test_db')