Docker在一个容器中包含多个数据库 [英] Docker compose with multiple databases in one container
问题描述
我想创建Docker容器并将3个数据库导入其中.我尝试使用以下代码:
I want to create Docker container and import 3 databases into it. I've tried with the following code:
version: '3.3'
services:
web:
build:
context: ./php56
dockerfile: Dockerfile
container_name: php56
depends_on:
- db
volumes:
- ../www:/var/www/html/
ports:
- 8000:80
db:
container_name: mysql
image: mysql:5.7.21
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: dkum
MYSQL_USER: devuser
MYSQL_PASSWORD: devpass
entrypoint:
sh -c "
echo 'CREATE DATABASE IF NOT EXISTS dkum_joomla; CREATE DATABASE IF NOT EXISTS dkum_test;' > /docker-entrypoint-initdb.d/init.sql;
/usr/local/bin/docker-entrypoint.sh --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
"
volumes:
- ../sql/baze/dkum.sql:/docker-entrypoint-initdb.d/dkum.sql
- ../sql/baze/dkum_joomla.sql:/docker-entrypoint-initdb.d/dkum_joomla.sql
- ../sql/baze/dkum_test.sql:/docker-entrypoint-initdb.d/dkum_test.sql
ports:
- 6033:3306
此代码仅创建1个数据库(dkum),其中填充了dkum.sql卷中的数据.如果我删除dkum_joomla.sql和dkum_test.sql卷,则它将创建3个数据库(dkum,dkum_joomla和dkum_test),而只有dkum数据库填充了数据.
This code creates only 1 database (dkum) filled with data from the dkum.sql volume. If I remove dkum_joomla.sql and dkum_test.sql volumes then it creates 3 databases (dkum, dkum_joomla and dkum_test) with only dkum database filled with data.
这是我的SQL文件.我稍后再扩展.
Here are my SQL files. I will later expand them.
CREATE TABLE dkum_table (
DkumID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
dkum_joomla.sql
CREATE TABLE dkum_joomla_table (
DkumJoomlaID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
dkum_test.sql
CREATE TABLE dkum_test_table (
DkumTestID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
推荐答案
与其在docker-compose文件中创建其他数据库,不如在SQL文件中创建它们:
Instead of creating additional databases in docker-compose file, just create them in SQL files instead:
version: '3.3'
services:
web:
build:
context: ./php56
dockerfile: Dockerfile
container_name: php56
depends_on:
- db
volumes:
- ../www:/var/www/html/
ports:
- 8000:80
db:
container_name: mysql
image: mysql:5.7.21
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: dkum
MYSQL_USER: devuser
MYSQL_PASSWORD: devpass
volumes:
- ../sql/baze/dkum.sql:/docker-entrypoint-initdb.d/dkum.sql
- ../sql/baze/dkum_joomla.sql:/docker-entrypoint-initdb.d/dkum_joomla.sql
- ../sql/baze/dkum_test.sql:/docker-entrypoint-initdb.d/dkum_test.sql
ports:
- 6033:3306
dkum.sql
CREATE TABLE dkum_table (
DkumID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
dkum_joomla.sql
CREATE DATABASE IF NOT EXISTS dkum_joomla;
USE dkum_joomla;
CREATE TABLE dkum_joomla_table (
DkumJoomlaID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
dkum_test.sql
CREATE DATABASE IF NOT EXISTS dkum_test;
USE dkum_test;
CREATE TABLE dkum_test_table (
DkumTestID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);
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