我有 docker-compose(只显示 MySQL 部分):
site_mysql:
image: site/mysql:latest
build: ./images/mysql
environment:
MYSQL_ROOT_PASSWORD: secret
volumes:
- site_mysqldata:/var/lib/mysql
networks:
- site_appnet
ports:
- "3306:3306"
我可以从容器内部连接到 MySQL,但我不能从本地主机连接,我得到的错误是Host site_mysql is unknown。
docker 文件是:
FROM mysql:5.7
MAINTAINER Author
# The official MySQL docker image will run all .sh and .sql scripts found in this directory
# the first time the container is started.
COPY init.sql /docker-entrypoint-initdb.d
COPY my.cnf /etc/mysql/conf.d
我的.cnf:
[mysqld]
# Always use UTC
default-time-zone='+00:00'
# To turn off strict mode (alas, we started out that way, will be work to turn it on)
sql-mode="NO_ENGINE_SUBSTITUTION"
max-allowed-packet = 16M
### Per-thread Buffers
sort-buffer-size = 2M
read-buffer-size = 128K
read-rnd-buffer-size = 256K
join-buffer-size = 256K
### Temp Tables
tmp-table-size = 64M
max-heap-table-size = 64M
#### Storage Engines
default-storage-engine = InnoDB
innodb = FORCE
初始化.sql :
CREATE DATABASE IF NOT EXISTS site;
CREATE DATABASE IF NOT EXISTS site_test;
CREATE USER 'site'@'%' IDENTIFIED BY 'secret';
GRANT ALL PRIVILEGES ON site.* TO 'site'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
我在不同的项目中使用相同的配置一段时间,直到现在一切正常。知道为什么我的主机无法识别 site_mysql
吗?
已更新
此外,我还有:
site_memcached:
image: memcached:1.4-alpine
networks:
- videosite_appnet
在这里我可以使用 site_memcached
作为主机名进行连接
最佳答案
如果从主机连接,则必须使用“localhost”而不是“site_mysql”
site_mysql: --> this is the servername within docker
image: site/mysql:latest
build: ./images/mysql
environment:
MYSQL_ROOT_PASSWORD: secret
volumes:
- site_mysqldata:/var/lib/mysql
networks:
- site_appnet
ports:
- "3306:3306" --> here you open
port 3306 also on localhost (your host computer)
and bind it to the containers port 3306
我的个人配置(mac 主机)是:(也许“重启:总是”有帮助)
db:
image: "mysql:5"
ports:
- "3306:3306"
networks:
- main
volumes:
- ./mysql/config:/etc/mysql/conf.d:cached
- ./mysql/data:/var/lib/mysql:cached
- ./mysql/init:/docker-entrypoint-initdb.d:cached
restart: always
environment:
TZ: UTC
MYSQL_ROOT_PASSWORD: somepassword
关于mysql - 从主机连接到 docker mysql,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/50968871/