The flag is used like this -add-host :127.0.0.1. Simply add this flag to your docker run command. When added to a docker run command this flag will allow Docker to add an entry in the /etc/hosts file within the container that you are trying to run. Luckily, Docker has an easy solution to this problem. However, if you are running WordPress via a docker run command (rather than using Docker Compose), then you wont be able to make permanent changes to the container. When using WordPress in a Docker Container, the loopback error becomes more of a Docker problem rather than a WordPress problem. What about WordPress Docker Containers?ĭocker is how I was exposed to WordPress loopback error in the first place. You are not required to reboot your system. You will then be asked if you want to save your file, type y for yes. Once you add that line, you can type ctrl+x. Make sure to change to your website domain. It should look similar to the screenshot below.Īdd the following line to the bottom of your hosts file. Once you are logged in you will want to nano /etc/hosts to open up your servers host file. Login to your website using SSH with your favorite terminal application such as PuTTY. This was because the domain name wasn’t listed in the /etc/hosts file. So when WordPress tried to loopback to itself via a domain name, the request didn’t make it back to the Docker container. I was running WordPress in a Docker container. Loopback requests need to function correctly in order to ensure your website remains stable. Loopback requests are used to run scheduled events ( wp-cron.php). What is a Loopback request?Ī loopback request is simply a request that WordPress is trying to make to itself. If you have the error you will see a message that states “ Your site could not complete a loopback request” similar to the one in the screenshot below. When the menu appears, click on Site Health. Once you are logged into the dashboard, hover over the Tools menu. However, you can also check for this error within the administrative dashboard of your WordPress installation.
The error usually pops up on the first page when you logon to the administrative dashboard of your WordPress site. Sometimes the application will show errors that will make you scratch your head, such as the common WordPress loopback error that you may see when it runs a site health check. WordPress is a very powerful website content management system that is used by millions. What about WordPress Docker Containers?.
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