This checklist has been written by me since I keep running into the same scenario over and over again during migrations where I forget a simple step and have to repeat everything again.
Think of this tutorial on how to perform migration of an existing Wordpress instance. This tutorial assumes you have knowledge of basic linux commands.
I will be using a Bitnami Wordpress installation on AWS EC2 to demonstrate. Login to your Wordpress instance and find the installation path of wordpress.
My installation is located at
Wordpress stores its data in 3 main places: 1.
/wp-content/folder where all the plugins and theme files are located 2. Database (usually mysql, mariadb or postgres) where data on authentication, users and website content 3.
wp-config.phpwhere config details such as website URL and database credentials are located
Let's zip up the
/wp-content/ folder so that it can be downloaded onto my computer
$~ zip -r ./wp-content wp-content.zip
Now lets connect to the database and back it up With the database credentials lets dump the SQL into a file
~ mysqldump -u <username> -p <database_name> > backup.sql
Now lets download the backed up files onto our system using scp
~ scp <username>@<ip>:/home/<username>/stack/wordpress/wp-content.zip ./ ~ scp <username>@<ip>:/home/<username>/stack/wordpress/wp-config.php ./ ~ scp <username>@<ip>:/home/<username>/stack/wordpress/backup.sql ./
While you're at it. Do not forget to check the version of
php-fpm running since you cannot migrate from one version of PHP to another.
This should lead to you have all the three important files
Now spin up another instance of wordpress while making sure to match the same PHP version.
SSH into the newly logged in instance and delete the following files to make sure they don't overlap.
Now lets upload the same file onto the server
~ scp ./wp-content.zip <username>@<ip>:/home/<username>/stack/wordpress/wp-content.zip ~ scp ./wp-config.php <username>@<ip>:/home/<username>/stack/wordpress/wp-config.php ~ scp ./backup.sql <username>@<ip>:/home/<username>/stack/wordpress/backup.sql
$~ unzip ./wp-content.zip
Replace the database credentials in the
/** The name of the database for WordPress */ define( 'DB_NAME', 'bitnami_wordpress' ); /** Database username */ define( 'DB_USER', '<username>' ); /** Database password */ define( 'DB_PASSWORD', '<password>' ); /** Database hostname */ define( 'DB_HOST', '127.0.0.1:3306' );
Restore the sql backup back into the database
mysql -u <username> -p bitnami_wordpress < backup.sql
Your wordpress deployment should be ready and working.
Poorna's blog 2020-PRESENT. All the opinions on this blog are opinions only. I have no sponsors and I am not affliated with any platforms or ventures.