memcached_session_handler

PHP Sample App using Memcached Instance Session Handler

This app leverages a PHP session handler for a memcached instance by providing a binding of type php-memcached-session. In order to use this app, you will need to set up a memcached instance and enable basic container to container networking as shown below.

Building

1. Run a Memcached instance, in this example we are using the default Memcached Docker image: docker run -it -p 6379 memcached:latest

2. Get the Memcached container bridge network IP address: docker inspect <container ID> | jq -r 'map(.NetworkSettings.Networks.bridge.IPAddress) []' You should get something like 172.17.0.2 back.

3. Create a host file inside of the app binding directory with the value set to the IP address from step 2. Also create a servers file with the IP address in it as well. The binding directory should now contain: type: php-memcached-session host: <IP address from step 2> servers: <IP address from step 2>

4. Build the app with the service binding:

pack build php-memcached-handler-sample \
--env BP_PHP_WEB_DIR=htdocs \
--env SERVICE_BINDING_ROOT=/bindings \
--volume $PWD/binding:/bindings/php-memcached-session \
--buildpack paketo-buildpacks/php \
--builder paketobuildpacks/builder-jammy-full

Running

docker run --interactive --tty --env PORT=8080 --publish 8080:8080 php-memcached-handler-sample

Viewing

You can observe the stored state from the session handler by reaching the app twice, using a cookie in the request.

1. curl localhost:8080 --cookie-jar /tmp/cookie

Observe the counter that displays the number of hits the page has had serving 1.

2. curl localhost:8080 --cookie /tmp/cookie Observe the counter that displays the number of hits the page has had serving 2.

Alternatively, view localhost:8080 in your browser a few times and see the page count increment.

Stack Support

The Paketo PHP buildpack requires the Full Jammy Stack. See stack docs for more details