Installer MySQL 8 pour Symfony

1.1. Installation des packages Ubuntu

Installer par exemple les packages Ubuntu avec synaptic ou apt :

sudo apt install mysql-server mysql-server-8.0 mysql-server-core-8.0 mysql-client mysql-client-8.0 mysql-client-core-8.0 mysql-common

1.2. Sécurisation du root

richer@zentopia:\$ sudo mysql
mysql> alter user 'root'@'localhost' identified with mysql_native_password by '$Sensei70';
mysql> exit

On sécurise ensuite l'installation de MySQL :

richer@zentopia:\$ sudo mysql_secure_installation

Securing the MySQL server deployment.

Enter password for user root: 
The 'validate_password' component is installed on the server.
The subsequent steps will run with the existing configuration
of the component.
Using existing password for root.

Estimated strength of the password: 100 
Change the password for root ? ((Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : n

 ... skipping.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done! 

1.3. Création d'un utilisateur avec droits

On crée un utilisateur ccp_user qui va permettre de gérer la base de données ccp (Clients Commandes Produits) avec Symfony :

richer@zentopia:\$ sudo mysql -u root -p
mysql> create user 'ccp_user'@'localhost' identified by '!Ccp_user1';
mysql> grant all privileges on *.* to 'ccp_user'@'localhost';
mysql> flush privileges;
mysql> quit

L'utilisateur ccp_user pourra créer la base de données (create database) ainsi que les tables associées et pourra également insérer, modifier ou supprimer des enregistrements.

Dernière étape : on relance MySQL pour prendre en compte les modifications :

richer@zentopia:\$ sudo service mysql restart