I have created my docker environment, but is having trouble connecting to mysql via remote software e.g. Workbench or Sequel Pro. Below is my yml file for mysql specific.
mysql-dev:
image: mysql:8.0.17
container_name: bcdb
volumes:
- mysql-dev:/var/lib/mysql
environment:
MYSQL_ALLOW_EMPTY_PASSWORD: "no"
MYSQL_ROOT_PASSWORD: "rootpwd"
MYSQL_USER: 'testuser'
MYSQL_PASSWORD: 'testpassword'
MYSQL_DATABASE: 'testdb'
MYSQL_ROOT_HOST: '%'
ports:
- "3301:3306"
Note: The mysql-dev is connected to volumes mysql-dev:
No matter if I type in as hostname:
localhost, 127.0.0.1, (ip address of the mysql server) etc. there is no connection available. Error message is: "MySQL said: Can't connect to MySQL server on '127.0.0.1' (61)"
Just a thought: Do I need to expose the ports in the Dockerfile, or am I missing something basic?
I'm starting the container by typing: "docker-compose up -d" - nothing else atm.
Try bridge network, here is a working yaml config,
version: "3"
services:
mysql-dev:
image: mysql:5
container_name: bcdb
# volumes:
# - mysql-dev:/var/lib/mysql
environment:
MYSQL_ALLOW_EMPTY_PASSWORD: "no"
MYSQL_ROOT_PASSWORD: "rootpwd"
MYSQL_USER: 'testuser'
MYSQL_PASSWORD: 'testpassword'
MYSQL_DATABASE: 'testdb'
MYSQL_ROOT_HOST: '%'
ports:
- "3301:3306"
networks:
- mysql-main
networks:
mysql-main:
driver: bridge
Test connection:
➜ ~ nc 127.0.0.1 3301
J
5.7.34OEaDdC���;2
Bpq?7O{mysql_native_password
^C
➜ ~
For the details, you can refer this excellent blog post.
Related
Good morning,
I have 2 docker container configured, with the same Dockerfile, but different ports, see configuration
mariadb:
container_name: mariadb
image: project/mariadb
build:
context: .
dockerfile: ./docker/mariadb/Dockerfile
environment:
MYSQL_ROOT_PASSWORD: "$MYSQL_ROOT_PASSWORD"
MYSQL_DATABASE: "$MYSQL_DATABASE"
MYSQL_USER: "$MYSQL_USER"
MYSQL_PASSWORD: "$MYSQL_PASSWORD"
command: ['mysqld', '--character-set-server=utf8mb4', '--collation-server=utf8mb4_unicode_ci']
ports:
- "3306:3306"
volumes:
- mysql_data:/var/lib/mysql
- ./services/mysql/utf8mb4.cnf:/etc/mysql/conf.d/utf8mb4.cnf:ro
mariadb_test:
container_name: mariadb_test
image: project/mariadb
build:
context: .
dockerfile: ./docker/mariadb/Dockerfile
environment:
MYSQL_ROOT_PASSWORD: "admin"
MYSQL_DATABASE: project_test
MYSQL_USER: foo
MYSQL_PASSWORD: bar
command: ['mysqld', '--character-set-server=utf8mb4', '--collation-server=utf8mb4_unicode_ci']
ports:
- "3317:3306"
volumes:
- ./services/mysql/utf8mb4.cnf:/etc/mysql/conf.d/utf8mb4.cnf:ro
I can connect to mariadb (Port:3306) Container without any problems, Parameters are saved in .env:
mysql://$MYSQL_USER:$MYSQL_PASSWORD#$MYSQL_HOST:$MYSQL_PORT/$MYSQL_DATABASE
But if I try to connect to mariadb_test I get a
SQLSTATE[HY000] [2002] Connection refused
even if I hardcode the connection params to:
mysql://foo:bar#mariadb_test:3317/project_test
I'm very frustrated...What am I doing wrong?
Thanks to #David Maze who answered my question in a comment:
Connections between containers always use the "normal" ports; they ignore ports: remappings. Use the standard MySQL port 3306 in the database connection string.
I have a laravel app and the database containers are configured in this way:
db:
image: "mysql:5.7"
command: ["--sql- mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"]
environment:
MYSQL_DATABASE: mydb
MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
volumes:
- db_data:/var/lib/mysql
restart: unless-stopped
networks:
- simple_net
app:
build:
context: .
dockerfile: ./setup/Dockerfile
restart: unless-stopped
tty: true
ports:
- "${APP_PORT}:80"
working_dir: /var/www/
volumes:
- ./:/var/www/
environment:
DB_CONNECTION: mysql
DB_HOST: db
DB_DATABASE: mydb
DB_USERNAME: root
# SERVER_ADDR: localhost
When I tried to start the app with docker-compose up it throws an exception that says SQLSTATE[HY000] [1045] Access denied for user 'root'#'172.23.0.6' (using password: NO). The IP refers to the environmental variable SERVER_ADDR, I tried to set it up with the values localhost and '' (empty) but nothing has worked so far.
You should set the .env's DB_HOST to the name of your container, in your case db.
DB_HOST=db
I do not believe injecting environment variables replaces filling the .env.
Also, if you want to Dockerize your Laravel applications, several options already exist and work out of the box:
Laradock
Docker Compose Laravel
Laradose (which I maintain)
You don't need DB_CONNECTION: mysql there.
Instead inside your .env file in lavel you will use this like:
DB_CONNECTION: mysql
DB_HOST: db
DB_PORT: 3306
DB_DATABASE: mydb
DB_USERNAME: root
DB_PASSWORD: password
Your app container does not need this environment, that's your server running. You try to configure the environment of the db container inside server container which will run your app.
Change your docker-compose to:
db:
image: "mysql:5.7"
command: ["--sql- mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"]
environment:
MYSQL_ROOT_USER: root
MYSQL_ROOT_PASSWORD: password
MYSQL_DATBASE: mydb
MYSQL_USER: root
MYSQL_PASSWORD: password
SERVICE_TAGS: dev
SERVICE_NAME: mysql
volumes:
- db_data:/var/lib/mysql
restart: unless-stopped
networks:
- simple_net
app:
build:
context: .
dockerfile: ./setup/Dockerfile
restart: unless-stopped
tty: true
ports:
- "${APP_PORT}:80"
working_dir: /var/www/
volumes:
- ./:/var/www/
networks:
- simple_net
Bridge your containers under your network so they can interact with each other.
Run docker-compose up --build and then access your laravel container and run inside the container php artisan optimize to configure cache for routes,env variables, files etc etc.
docker exec -it db mysql -u root -p password
Based on your comments you have issues to access the container and the reason is you don't use credentials for it and mysql tries to use the default ones. Above command defines the right user and password, you will also be asked to fill the password.
Also mysql has more parameters to define the host etc etc you can have a look further for that.
So, I've got a MySQL docker container on which I run a script to write into the database, but when I execute the script, my script throws
mysql.connector.errors.DatabaseError: 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
Do I have to start the MySQL service in the Dockerfile?
docker-compose.yml:
version: '3.3'
services:
db:
build: .
restart: always
environment:
MYSQL_ROOT_PASSWORD: test
MYSQL_DATABASE: test
MYSQL_USER: test
MYSQL_PASSWORD: test
volumes:
- ./db_data:/docker-entrypoint-initdb.d
First you need to expose the MySQL port 3306 or any other port you set for the MySQL
and then you can get help from commmand parameter.
A working sample would be like this:
version: '3.1'
services:
db:
image: mysql
container_name: mysql_test
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: root_password
MYSQL_DATABASE: test
MYSQL_USER: test_user
MYSQL_PASSWORD: test_password
ports:
- 30001:3306
expose:
- 30001
volumes:
- my-db:/var/lib/mysql
networks:
- test
networks:
test:
volumes:
my-db:
driver: local
With this sample code you will be able to connect with localhost:30001 to your database from host machine and mysql_test:3306 from other containers within the same network.
If you're trying to execute script in your host, you need to export port 3306
version: '3.3'
services:
db:
build: .
restart: always
environment:
MYSQL_ROOT_PASSWORD: test
MYSQL_DATABASE: test
MYSQL_USER: test
MYSQL_PASSWORD: test
ports:
- 3306:3306
volumes:
- ./db_data:/docker-entrypoint-initdb.d
If you're trying to execute inside docker (with a docker exec for example), check if container is up with docker ps
I created a MySQL container but can only connect to the database from the host.
I start the MySQL container in this file:
docker-composer.yml:
version: '3.3'
services:
db:
image: mysql:5.7
ports:
- "3307:3306"
volumes:
- db_data:/var/lib/mysql
restart: always
environment:
MYSQL_ROOT_PASSWORD: somewordpress
MYSQL_DATABASE: wordpress
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress
wordpress:
depends_on:
- db
image: wordpress:latest
ports:
- "8000:80"
restart: always
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress
WORDPRESS_DB_NAME: wordpress
volumes:
db_data: {}
when run docker-compser up , I got this error:
MySQL Connection Error: (2002) No route to host
But I can succeed to connect to the container from the host, like this:
mysql -u root -p -h 127.0.0.1 -P 3307
You can try to connect without a port specifying:
WORDPRESS_DB_HOST: db
It turns out to be a firewall problem. I am using fedora 32 system. And the docker interface using the default zone which will block 80 port and 3306 port.
So, after I bind my docker interface to trusted zone and added some port everything worked.
I am using this Docker config: https://github.com/romaricp/kit-starter-symfony-4-docker
I start the environment by using:
docker-compose build
followed by:
docker-compose up -d
Everything is running fine but there is a problem with MySQL service. I get an Symfony error:
"An exception occurred in driver: could not find driver"
as well as PMA error when I try to login to DB:
mysqli_real_connect(): php_network_getaddresses: getaddrinfo failed:
Name does not resolve
Any idea how could I make it work?
docker-compose.yml:
version: '3'
services:
apache:
build: .docker/apache
container_name: sf4_apache
ports:
- 80:80
volumes:
- .docker/config/vhosts:/etc/apache2/sites-enabled
- .:/home/wwwroot/sf4
depends_on:
- php
mysql:
image: mysql
container_name: sf4_mysql
volumes:
- .docker/data/db:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: sf4
MYSQL_USER: sf4
MYSQL_PASSWORD: sf4
php:
build: .docker/php
container_name: sf4_php
volumes:
- .:/home/wwwroot/sf4
environment:
- maildev_host=sf4_maildev
depends_on:
- maildev
- mysql
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: sf4_phpmyadmin
ports:
- 8080:80
links:
- mysql
maildev:
image: djfarrelly/maildev
container_name: sf4_maildev
ports:
- 8001:80
Also I opened the mysql logs and I see this:
2019-04-07T12:00:30.943414Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.15' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server - GPL.
Maybe the port is wrong and that's why I can't connect?
For phpmyadmin service, i think you should set the PMA_HOST and PMA_PORT environment variables like this:
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: sf4_phpmyadmin
environment:
PMA_HOST: mysql
PMA_PORT: 3306
ports:
- 8080:80
links:
- mysql
Your mysql container should have the command instruction at the start to set the authentication plugin (there is an issue with the connectors with mysql 8), more details here
mysql:
image: mysql
container_name: sf4_mysql
command: "--default-authentication-plugin=mysql_native_password"
volumes:
- .docker/data/db:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: sf4
MYSQL_USER: sf4
MYSQL_PASSWORD: sf4
in your Symfony app, the connection string is located in .env file, and it should have the following format :
DATABASE_URL=mysql://mysql_user:mysql_user_password#mysql_host:mysql_port/db_name
mysql_user: your mysql user (ex: root)
mysql_user_password: the user's password (ex: root)
mysql_host: is should contain your mysql container service name
located in your docker-compose.yml file (mysql in this case)
mysql_port: mysql container internal port (3306, in this case)
db_name: the database you want to connect to.
the DATABASE_URL can look like this :
DATABASE_URL=mysql://root:root#mysql:3306/sf4
stop your containers after these changes and start them up again.
Hope this will help.
You have to expose the mysql port 3306:
mysql:
image: mysql
container_name: sf4_mysql
volumes:
- .docker/data/db:/var/lib/mysql
restart: always
ports:
- "3306:3306"
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: sf4
MYSQL_USER: sf4
MYSQL_PASSWORD: sf4
networks:
- default
I think you're having trouble linking the containers. I suggest that you use a custom network instead of linking. That all containers can see each other