P020C

Unattended Upgrade Enhancements

Description

This patch improves the reliability of the Unattended-Upgrades subsystem. While the currently active PHP version is already up-to-date, this patch will also upgrade the inactive PHP packages, along with several other supporting packages. The patch doesn't upgrade any packages itself, upgrades happen during the next scheduled unattended-upgrades.

Impact

On a single server deployment (All-In-One), PHP-FPM restarts once, which may interrupt requests for a few seconds. On an Cluster, the web leader and the Varnish leader are used to create an updated boot image and worker nodes are replaced from using the Auto-Scaling mechanism. No downtime is expected during the roll out of the updated image.

Your database and other nodes are not impacted.

Changes

• Configures unattended-upgrades refresh the PHP packages that aren't in use and several other supporting packages
• Restart PHP-FPM on web nodes
• On clusters, backs up the web/Varnish leader, replaces web/Varnish nodes.

If You Accept

Unattended upgrades keeps PHP and its supporting packages up to date automatically, including the PHP versions you aren't using. Your sites and PHP settings are not impacted.

If You Reject

PHP and other packages on your deployment can stop getting updates automatically. Security fixes for them will lag behind until they're upgraded some other way.

Due Critical patch rating, it is not possible to reject this patch.