So i am creating a new symfony 4 project but i cant get mysql to connect to my docker mysql. what part am i doing wrong?
Ive tried change mysql versions, composing it down and updating different mysql root and password and is not connecting.
here is my docker-compose.yml for mysql.
mysql:
image: mysql:8
container_name: sf4_mysql
volumes:
- .docker/data/db:/var/lib/mysql
command:
- "--default-authentication-plugin=mysql_native_password"
- "--lower_case_table_names=1"
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: sf4
MYSQL_USER: sf4
MYSQL_PASSWORD: sf4
Here is mysql Url in my .env
DATABASE_URL=mysql://sf4:sf4#sf4_mysql:3306/sf4
every-time i do ./bin/console doctrine:database:create, connection is refused.
just trying to create a database.
controller
class HospitalAdminController extends AbstractController
{
/**
* #Route("/admin/hospital/new")
*/
public function new(EntityManagerInterface $em)
{
$hospital = new Hospital();
$hospital->setName('Example Hospital')
->setPhone(8175831483)
->setAddress('123 Avenue');
$em->persist($hospital);
$em->flush();
return new Response(sprintf(
'Hiya! New Hospital id: #%d phone:%s address%s',
$hospital->getId(),
$hospital->getPhone(),
$hospital->getAddress()
));
}
You need to expose mysql port. default is 3306.
see port publishing
and more examples specific to mysql-8 on docker
For checking if mysql is running it is good to run inside terminal its client so you minimize potential error source to the database itself not including potential errors in php.
Related
I'm learning PDO now and I found it better to learn it in a LEMP docker stack (Nginx, php-fpm, MariaDB, phpMyadmin) on my Ubuntu 18.04LTS.
This is my php file:
<?php
try {
$mydb = new PDO('mysql:host=database;dbname=mysql;charset=utf8', 'root', 'admin');
} catch (Exception $e) {
die('Error : ' . $e->getMessage());
}
?>
As you can see, I try to make a PDO in my php code to recover some datas from my db.
But everytime I got that message on my browser (Firefox 69.0.2):
Error : could not find driver
I saw that post here: "Docker can't connect to mariadb with PHP". The problem was quite similar to mine but it didn't work for me.
Note: php-fmp and Nginx work perfeclty together. Same for MariaDB and phpMyAdmin.
Here is my docker-compose.yml file:
version: "3"
services:
nginx:
image: tutum/nginx
ports:
- "7050:80"
links:
- phpfpm
volumes:
- ./nginx/default:/etc/nginx/sites-available/default
- ./nginx/default:/etc/nginx/sites-enabled/default
- ./logs/nginx-error.log:/var/log/nginx/error.log
- ./logs/nginx-access.log:/var/log/nginx/access.log
phpfpm:
image: php:fpm
links:
- database:mysql
ports:
- "7051:9000"
volumes:
- ./public:/usr/share/nginx/html
database:
image: mariadb
environment:
MYSQL_ROOT_PASSWORD: admin
ports:
- "7052:3306"
phpmyadmin:
image: phpmyadmin/phpmyadmin
restart: always
links:
- database:mysql
ports:
- "7053:80"
environment:
PMA_HOST: mysql
PMA_USER: root
PMA_PASSWORD: admin
PMA_ARBITRARY: 1
If it is possible to solve this without building my own Dockerfiles, it would be great.
But if I must, I will. This isn't a problem.
docker-compose is an "api" of sorts for a Dockerfile. You need to add those libraries (apt-get etc...) in the Dockerfile
Dockerfile is your friend!
Is your PHP file inside a docker container or is it running outside docker, in the host machine?
If it is running inside the docker container, which service is it in? Please note that the nginx service does not have the "links" configuration, meaning it only accesses the database through the "database" hostname. Check the port as well (in the end of this post).
If your PHP file is running outside, then you have to use localhost instead of mysql in your connection string, like so: 'mysql:host=localhost;dbname=mysql;charset=utf8'. This is because docker's internal DNS is just that: internal. You can't access this hostname (database or mysql) outside docker.
Equally important, your connection string is not specifying the port, which is 7052 in your case. Since you're redirecting from 7052 to 3306, I think 3306 is mysql's default port, and the driver assumes 3306 if you do not specify it. It's always a good idea to be explicit about hosts and ports. Check the documentation on PHP databse connection strings about it (as I know nothing about php). It's probably ...;port=7052 or something.
Also, read up on docker-compose links, which you are using. It's deprecated now, so I advise to not use it in future projects, I even advise to spend some time removing it. Should take like 30 seconds to 5 minutes if everything goes well, and it won't haunt you anymore.
A found the solution.
First of all, the host must be mysql and not the name of my container (which is database):
$mydb = new PDO('mysql:host=mysql;dbname=mysql;charset=utf8', 'root', 'admin');
Inside the phpfpm container (accessible via the command docker-compose run --rm <container-name> bash), I had to enable the extension=php_pdo_msql line in my config file php.ini by removing the semicolon at the beginning of its line.
To avoid doing this manually every time after a docker-compose up, I replaced the phpfpm service in my docker-compose.yml file the following Dockerfile:
FROM php:fpm
RUN docker-php-ext-install pdo pdo_mysql
Finally, just build the image with the command docker-compose build . (replace the . by the path to the directory containing the docker-compose.yml file).
It works perfectly for me.
My question is how to configure connection to mysql container.
Here is my docker-compose.yml
version: '3'
services:
php:
build: ./php-fpm
volumes:
- ./iym:/var/www/iym
- ./php-fpm/php.ini:/usr/local/etc/php/php.ini
depends_on:
- mysql
web:
build: ./nginx
ports:
- "8888:80"
volumes:
- ./iym:/var/www/iym
- ./nginx/iym.conf:/etc/nginx/conf.d/default.conf
depends_on:
- php
mysql:
image: mysql:5.6
restart: always
command: --default-authentication-plugin=mysql_native_password
volumes:
- ${DB_PATH_HOST}:/var/lib/mysql
environment:
MYSQL_ROOT_PASSWORD: "symf0ny"
ports:
- "3306:3306"
And here is my DATABASE_URL in .env file
DATABASE_URL=mysql://root:symf0ny#127.0.0.1:3306/iym
When i try to run php bin/console doctrine:database:create i get an error like "SQLSTATE[HY000] [2002] Connection refused". OS - ubuntu 18.04. What should i do to connect to DB? Many thanks!
I assume you are trying to connect from another container/service defined in docker-compose and you are using current version of docker-compose (2.4 or 3.7)
You need to change
DATABASE_URL=mysql://root:symf0ny#127.0.0.1:3306/iym
to
DATABASE_URL=mysql://root:symf0ny#mysql:3306/iym
The reason is that 127.0.0.1 is refering to the localhost of the machine on which php runs. In this case it's the php's container localhost. But the db doesn't run there. It runs in another docker container, which can be reached under the service name, mysql in this case.
In docker-compose networking docs is written:
By default Compose sets up a single network for your app. Each container for a service joins the default network and is both reachable by other containers on that network, and discoverable by them at a hostname identical to the container name.
but, the service is discoverable under the container name (which is automatically generated to projectName_serviceName_1 (project name begin by default folder name), but also under service name, link and service alias if defined. I would recommend using service name wherever possible.
More in docs: https://docs.docker.com/compose/networking/
In my case, the Docker variable overrides the parameter from .env file and I'm trying to connect to the wrong host. Found that via dd($this->constructPdoDsn($params)) in the Doctrine\DBAL\Driver\PDO\MySQL\Driver::connect, maybe it will be helpful
Trying to connect to mysql 8 (mysql:latest) from a php:latest image (without apache or nginx) and I'm getting this annoying error:
Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Connection refused in /src/conn.php:5
Stack trace:
#0 /src/conn.php(5): PDO->__construct('mysql:host=data...', 'root', '12345678')
#1 {main}
thrown in /src/conn.php on line 5
I've looked for +20 solutions here on stackoverflow but none of them was able fix my problem. I can connect without a problem using mysql workbench or DataGrid using the following credentials:
server: localhost user: root pass: 12345678
But any configuration I use on the php image I can't make them connect with each other.
My docker-compose file:
version: '3'
services:
composer:
container_name: composer
networks:
- backend
image: composer
volumes:
- .:/app
command: install
database:
container_name: mysql
networks:
- backend
image: mysql:latest
volumes:
- ./database/mysqldata:/var/lib/mysql
command: --default-authentication-plugin=mysql_native_password
environment:
MYSQL_ROOT_PASSWORD: 12345678
MYSQL_DATABASE: testdb
ports:
- "3306:3306"
php:
build:
context: .
container_name: php
networks:
- backend
image: php:apache
links:
- database
env_file:
- .env
volumes:
- .:/
command:
php /src/conn.php
depends_on:
- composer
- database
networks:
backend:
My conn.php:
<?php
$db = new PDO('mysql:host=database;dbname=testdb', 'root', '12345678');
What I did until now to try to fix the problem:
Change conn.php host to 127.0.0.1
Change conn.php host to localhost
Tried to use mysqli (got also connection refused)
Tried another php images (with apache, nginx etc)
Tried to use mysql as a host
PS: I'm using docker for mac
After 5 hours of research I really don't know what else to do and as I'm not a docker expert, would appreciate any help to point me the direction of the fix.
Thank you!
In your case, you can't connect to mysql via localhost or 127.0.0.1. If you connect like this. It call to localhost inside php container. But there is no mysql install in your php container.
You must connetc via container name. Or docker inspect you mysql container and get the container IP. For example with your docker-compose
database:
container_name: mysql
Now your mysql database host is mysql - container name instead localhost
Was able to find the solution. Turns out I need to wait for mysql service to be available before I start the php script. So I used the wait-for-it solution and did this on docker-compose:
command: >
bash -c "chmod +x /docker/./wait-for-it.sh
&& /docker/./wait-for-it.sh database:3306 -- echo 'database is up'
&& php phpscript.php"
Thank you for the help
I am trying to run a site using multiple container configuration - one for apache, second for mysql and third for myadmin. Everything starts fine, setup runs smooth but when I try to run a PHP application I get mysqli::__construct(): (HY000/2002): Connection refused in system/libraries/drivers/Database/Mysqli.php [54] error.
It seems that there's something wrong with the connection settings but I checked the site through PHP MyAdmin running on separate container and copied the db host IP from there just to be sure. How can I/should I connect from PHP container to MySQL db?
Here's my docker-compose.yml file:
version: '3'
services:
web:
build:
context: ./etc/php
args:
- APP_HOST=${APP_HOST}
- MYSQL_USER=${MYSQL_USER}
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_PORT=${MYSQL_PORT}
- MYSQL_DATABASE=${MYSQL_DATABASE}
ports:
- ${APP_PORT}:80
- ${APP_PORT_SSL}:443
volumes:
- ./var/bin/:/tmp/bin/
- ./app/:/var/www/html/
- ./log/apache2/:/var/log/apache2/
- ./etc/php/conf/:/usr/local/etc/php/conf.d/
environment:
- VIRTUAL_HOST=${VIRTUAL_HOST}
db:
build:
context: ./etc/mysql
args:
- MYSQL_DATABASE=${MYSQL_DATABASE}
- MYSQL_USER=${MYSQL_USER}
- MYSQL_PASSWORD=${MYSQL_PASSWORD}
- MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
- DUMP_FILE=${DUMP_FILE}
volumes:
- ./etc/mysql/conf:/etc/mysql/conf/conf.d
- ./data:/var/lib/mysql
- ./log/:/var/log/
ports:
- "${MYSQL_PORT}:3306"
phpmyadmin:
image: phpmyadmin/phpmyadmin
environment:
MYSQL_ROOT_PASSWORD: root
ports:
- ${MYADMIN_PORT}:80
environment:
- VIRTUAL_HOST=phpmyadmin.localhost
And the .env with variables:
VIRTUAL_HOST=foo.local
APP_PORT=80
APP_PORT_SSL=443
MYADMIN_PORT=8081
APP_HOST=foo.local
ADMIN_APP_HOST=admin-foo.local
MYSQL_DATABASE=foo_local
MYSQL_USER=root
MYSQL_HOST=172.26.0.2
MYSQL_PASSWORD=root
MYSQL_ROOT_PASSWORD=root
MYSQL_PORT=3306
Oh, and here's the code I try to run:
$this->link = $socket ? new mysqli(null, $user, $pass, $database, $port, $socket) :
new mysqli($host, $user, $pass, $database, $port);
Output of echo $host.'<br>'.$user.'<br>'.$pass.'<br>'.$database.'<br>'.$port.'<br>'.$socket; is following:
172.26.0.2
root
root
hq_local
3306
check your container IP with a docker inspect [container name] but write IP in a file is not very good. Replace IP by name of your db container.
You can always use host.docker.internal as IP, therefore you can use something like this:
$db = new \PDO('mysql:host=host.docker.internal;port=3306;dbname=db', 'root', 'pass');
Check out the /etc/hosts configuration inside your web service container for container linkage.
docker exec -it <container_name> cat /etc/hosts
Docker network won't be assigning the same IP to db container that you have specified for the MYSQL_HOST all the time. So better ti use the conatiner name in order to connect from web container.
Also, based on the context that you have specified in docker-compose.yml, try this:
new mysqli('etc/mysql', $user, $pass, $database, $port);
all you need to do is to specify the value of the host in mysql the official environment variable is MYSQL_ROOT_HOST: localhost if you do not do that then the host becomes the name of the service which in your case it is db.
Put everything in .env file and call the environment variables from there. Don´t worry about changing code if you write it as:
$mylink = mysqli_connect(
env("DB_HOST"),
env("DB_USER"),
env("DB_PASS"),
env("DB_NAME"),
env("DB_PORT",3306)
)
I was trying out Docker for the first time. Got a LEMP stack up and running, but I can't connect to the MYSQL Database. Not on my Symfony application, not on PHPMyAdmin. The applications are returning the following error code:
An exception occured in driver: SQLSTATE[HY000] [2002] Connection refused
This is my docker-compose.yml:
nginx:
image: tutum/nginx
ports:
- "80:80"
links:
- phpfpm
volumes:
- ./nginx/default:/etc/nginx/sites-available/default
- ./nginx/default:/etc/nginx/sites-enabled/default
- ./logs/nginx-error.log:/var/log/nginx/error.log
- ./logs/nginx-access.log:/var/log/nginx/access.log
phpfpm:
build: phpfpm/
ports:
- "9000:9000"
volumes:
- ./public:/usr/share/nginx/html
mysql:
image: mariadb
ports:
- 3306:3306
environment:
MYSQL_ROOT_PASSWORD: admin
phpmyadmin:
image: phpmyadmin/phpmyadmin
restart: always
links:
- mysql
ports:
- 8183:80
environment:
MYSQL_USERNAME: admin
MYSQL_ROOT_PASSWORD: admin
PMA_ARBITRARY: 1
Dockerfile PHPFPM:
FROM php:fpm
RUN docker-php-ext-enable opcache
RUN apt-get update \
&& apt-get install -y --no-install-recommends libpq-dev \
&& docker-php-ext-install mysqli pdo_pgsql pdo_mysql
GitHub URL: https://github.com/MolengraafFrank/DockerSymfony
Could someone help me out? Thank you for your time.
The '[2002] Connection refused' means you can reach the database server, but you don't have right access for the user (in your case admin). By default mariadb have a root user with the password given by MYSQL_ROOT_PASSWORD and this user can connect from any server (%).
If you want use an over login to your databases, you have to create it in the databases server with the right granting on databases from chosen locations.
The problem here is that you have named your database server as 'mysql' (service name in the docker-compose file). But by default phpmyadmin tries to connect to a database server named 'db'. Adding PMA_HOST: mysql under the environment section of the phpmyadmin service will resolve this problem.
I think that MYSQL_USERNAME and PMA_ARBITRARY are useless if you work with default configuration (connection with root to your databases server)
I had this challenge because I am running 3 different containers with different IP Addresses
db - 172.18.0.3 - container for MYSQL
app - 172.18.0.2 - container for Laravel app
so I fixed it by editing my Laravel .env file
DB_CONNECTION=mysql
DB_HOST=172.18.0.3
DB_PORT=3306
DB_DATABASE=database_name
DB_USERNAME=username
...
To get your containers Ip addresses. From your docker host
docker inspect -f '{{.Name}} - {{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -aq)
UPDATED:
For latest docker versions and based on the services name, "mysql", in your docker-compose.yml
mysql:
image: mariadb
ports:
- 3306:3306
You can try this:
DB_CONNECTION=mysql
DB_HOST=mysql
DB_PORT=3306
DB_DATABASE=database_name
DB_USERNAME=username
DB_HOST is the name of MySQL service name defined in docker-compose.yml
I've managed to connect to the mysql instance using mysql command line tool, this is the command I used - mysql -u root -p -h 127.0.0.1, and the entering the admin password. Is that a sufficient solution for you?
In my case I was running mysql in a docker container whose port was mapped to the host mac (3306:3306). I tried connecting to this database from a phpmyadmin docker container using 127.0.0.1 . But it won't work because the localhost on the phpmyadmin docker container does not have the required mysql running.
To connect to the host from docker network
docker.for.mac.host.internal
Docker Networking Docker Compose Networking
For my instance, the issue was with port mapping somehow.
In my case it was 3307:3306, as soon as I changed it to 3307 on the right side as well, I could connect to the DB instance.
Adding DB_READ_HOST=db solved this problem for me
If you want to know why your connexion failed, you can use in your terminal php artisan tinker and then
like
DB::connection()->getPdo();
Unfortunately this will only give you a part of the error.
Quit tinker and then use this command php artisan db will give you more information like database type, host, port, ad user about the issue.
Like this one
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1:3306' (61)
Symfony\Component\Process\Exception\ProcessFailedException
The command "'mysql' '--host=127.0.0.1' '--port=3306' '--user=root' '--default-character-set=utf8mb4' 'laravel'" failed.
Exit Code: 1(General error)
Working directory: /Users/Dev/Documents/www/laravel_docker/src/addressAPI
Output:
================
Error Output:
================
at vendor/symfony/process/Process.php:270
266▕ */
267▕ public function mustRun(callable $callback = null, array $env = []): self
268▕ {
269▕ if (0 !== $this->run($callback, $env)) {
➜ 270▕ throw new ProcessFailedException($this);
271▕ }
272▕
273▕ return $this;
274▕ }
+14 vendor frames
15 artisan:37
Illuminate\Foundation\Console\Kernel::handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
This will not give you the answer on what is wrong, but at least you can understand why your config is wrong.
you need to link the phpfpm container to mysql.