How to run cachify on docker with nginx and php

Case:

If you are using memcached in a docker container you will see, that the memcached cache still not grow, on you wordpress dashboard side. You changed your nginx config and you can see your site, but the cache is still empty.

Simple Solution:

1.) Go into the wordpress path where the plugin is installed
for example: ovks_de/wp-content/plugins/cachify/inc/

2.) Edit the File cachify_memcached.class.php

3.) Go to the last section

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                '127.0.0.1',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                '127.0.0.1',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }

4.) Edit the 127.0.0.1 to the name of your docker container or to the ip of your docker container.

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                'memcached',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                'memcached',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }

Long Solution with explanation

1.) Name your memcached Docker Container

If you are using docker-compose, you can do it the easy way.
The network section can be deleted, if you are not using your own network section. If you use your own, memcached has to be a part of the network of nginx and php, too.

        memcached:
                image: memcached:1.6.6
                container_name: memcached
                restart: always
                networks:
                - name_of_your_network

        memcached:
                image: memcached:1.6.6
                container_name: memcached
                restart: always
                networks:
                - name_of_your_network

2.) NGINX Config for memcached and cachify

You CAN NOT use the example of the config page of the plugin.
WordPress –> Plugin –> Cachify –> Preferences –> Second Tab
You have to change the „localhost“ from „memcached_pass“ to the name of the docker container:
from:
memcached_pass localhost:11211;
to:
memcached_pass memcached:11211;

	location / {
		# This is cool because no php is touched for static content.
		# include the "?$args" part so non-default permalinks doesn't break when using query string
		error_page 404 405 = @nocache;
		if ( $query_string ) {
			return 405;
		}
		if ( $request_method = POST ) {
			return 405;
		}
		if ( $request_uri ~ "/wp-" ) {
			#rewrite try_files $uri $uri/ /index.php?$args;
			return 405;
		}

		if ( $http_cookie ~ (wp-postpass|wordpress_logged|comment_author)_ ) {
			return 405;
		}
		default_type text/html;
		add_header X-Powered-By Cachify;
		set $memcached_key $http_host$request_uri;
		memcached_pass memcached:11211;
		}


	## NOCACHE LOCATION
	location @nocache {
		try_files $uri $uri/ /index.php?$args;
	}

	location / {
		# This is cool because no php is touched for static content.
		# include the "?$args" part so non-default permalinks doesn't break when using query string
		error_page 404 405 = @nocache;
		if ( $query_string ) {
			return 405;
		}
		if ( $request_method = POST ) {
			return 405;
		}
		if ( $request_uri ~ "/wp-" ) {
			#rewrite try_files $uri $uri/ /index.php?$args;
			return 405;
		}

		if ( $http_cookie ~ (wp-postpass|wordpress_logged|comment_author)_ ) {
			return 405;
		}
		default_type text/html;
		add_header X-Powered-By Cachify;
		set $memcached_key $http_host$request_uri;
		memcached_pass memcached:11211;
		}


	## NOCACHE LOCATION
	location @nocache {
		try_files $uri $uri/ /index.php?$args;
	}

3.) Does php and memcached work correctly?

1.) Lets test it!
Just create a PHP file in your WordPress-Directory and name it.

<?php
$memcache = new Memcached();
$memcache->addServer ('memcached', 11211, 67);
$memcache->set("working_stuff", "it works");
$working_stuff = $memcache->get("working_stuff");
echo $working_stuff;
?>

<?php
$memcache = new Memcached();
$memcache->addServer ('memcached', 11211, 67);
$memcache->set("working_stuff", "it works");
$working_stuff = $memcache->get("working_stuff");
echo $working_stuff;
?>

Browse to: https://example.com/memcached_test.php

Can you see „it works„? Yes? Cool, go further!
Your Memcached Server is working right now.

4.) Make cachify docker and memcached ready! Hurray!

To get „cachify for wordpress“ docker ready, you have to change one line in the code!

You have to change the „connect section“ of cachify cachify_memcached.class.php from localhost to memcached

Edit the 127.0.0.1 to the name of your docker container or to the ip of your docker container.

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                'memcached',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }
}

                /* Connect */
                self::$_memcached->addServers(
                        (array) apply_filters(
                                'cachify_memcached_servers',
                                array(
                                        array(
                                                'memcached',
                                                11211,
                                        ),
                                )
                        )
                );

                return true;
        }
}

In the array, you have to change the „127.0.0.1“ to „memcached“.

Hurray! You did it! Now, go to your Website and surf a little bit on it and you can see in the wordpress backed that the cache amount still grow. You can find that on the dashboard site „At A Glance“.

How to run cachify on docker with nginx and php

Markiert in:cachify docker docker-compose nginx

Case:

Simple Solution:

Long Solution with explanation

1.) Name your memcached Docker Container

2.) NGINX Config for memcached and cachify

3.) Does php and memcached work correctly?

4.) Make cachify docker and memcached ready! Hurray!

You have to change the „connect section“ of cachify cachify_memcached.class.php from localhost to memcached

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