History¶

Maintenance releases are not mentioned here, they update all dependencies and trigger complete rebuilds of the container images.

1.4 (2024-06-15)¶

removed: the environment variable ASSERT_HOSTNAME is ignored to reflect changes in Docker’s TLS handling

removed: the environment variable SSL_VERSION has no effect and is marked as deprecated

new: the STDERR_LEVEL environment variable can define log levels whose messages are then dumped to stderr instead of stdout
new: the environment variable JOB_NAME_REGEX can be used to define patterns that job names must match

This release candidate for the final version brings improved documentation, logging, a lot of code cleanup and these notable changes:

new: jobs’ container assignments and states are properly adjusted with regards to other instances of a service’s state
new: deck-chores’ cache sizes for container properties can be controlled with CONTAINER_CACHE_SIZE
new: the environment variable JOB_POOL_SIZE can be used to adapt the job executors pool size
new: images are build for arm64 (aka aarch64) architectures

All previously deprecated options have been removed.

new: the container configuration options.user allows to set an executing user for all jobs that don’t define one, can also be set on an image (#5)
new: environment variables for a job can be set in a job’s env namespace (#41)
new: a job’s workdir attribute can be used to set the working directory (#42)
new: cron and interval triggers can be configured to delay randomly with the jitter option (#43)
new: interval triggers and the jitter option can be defined with strings containing time units
removed: the DEFAULT_USER environment variable is removed (#17)
removed: parsing of environment variables ASSERT_FINGERPRINT and DOCKER_DAEMON
changed: the container configuration options is moved to options.flags
changed: the environment variable DEFAULT_OPTIONS is renamed to DEFAULT_FLAGS
changed: upgraded base image
changed: upgraded used Cerberus version
changed: requires Python 3.7
fix: includes the tzdata package in the image (#33)
fix: add jobs as paused for paused containers on startup
refactoring: uses the Python Docker SDK 3.5 (#31)

changed: arm builds base on python:3.6-alpine that are executed on an ARMv7l architecture
changed: Updated dependencies APScheduler and docker-py

fix: docker-py returns None for labels of images that were created with older Docker versions (#7)

new: there’s now a build for arm architectures
new: an architecture agnostic manifest is pushed to the image registry for release images

new: set log format per :envvar:LOG_FORMAT
new: an options label to set behavioural flags
new: containers can be identified as a service by configurable labels
new: job definitions for further containers of a service are ignored (default, opt-out can be configured)
new: image labels can also be parsed for job definitions (default, opt-out can be configured)