Version 3.0.0

Added

• Multi-arch support of baseimages.
• Baseimage based on Alpine Linux 3.16.

Changed

• Size of Docker images has been reduced.
• S6 overlay has been replaced with a simpler init system and process supervisor.
• Simplified and improved the container startup and shutdown sequences.
• Definition of services are more flexible and powerful.
• Definition of environment variables are more flexible and powerful.
• Environment variables are automatically passed to init scripts and services.
• Environment variables can be public or internal ones.
• Improved management of service dependencies.
• The log monitor has been rewritten in C.
• Improved logging to container's log.
• Multiple miscellaneous improvements.
• Make sure to read the documentation to understand how to adjust applications built with version 2.x of the baseimage.

Removed

• Baseimages based on Alpine Linux 3.10, 3.11 and 3.12.
• Glibc version of Alpine Linux Docker images. Glibc can instead be installed manually with the provided install script.
• The with-contenv script: its usage is no longer needed.