Significant Changes

bitnami/postgresql subchart updated to 12.1.9 (#29071)

The version of postgresql installed is still version 11.

If you are upgrading an existing helm release with the built-in postgres database, you will either need to delete your release and reinstall fresh, or manually delete these 2 objects:

As a reminder, it is recommended to set up an external database <https://airflow.apache.org/docs/helm-chart/stable/production-guide.html#database>_ in production.

This version of the chart uses different variable names for setting usernames and passwords in the postgres database.

• postgresql.auth.enablePostgresUser is used to determine if the "postgres" admin account will be created.
• postgresql.auth.postgresPassword sets the password for the "postgres" user.
• postgresql.auth.username and postrgesql.auth.password are used to set credentials for a non-admin account if desired.
• postgresql.postgresqlUsername and postgresql.postresqlPassword, which were used in the previous version of the chart, are no longer used.

Users will need to make those changes in their values files if they are changing the Postgres configuration.

Previously the subchart version was 10.5.3.

Default dags.gitSync.wait reduced to 5 seconds (#27625)

The default for dags.gitSync.wait has been reduced from 60 seconds to 5 seconds to reduce the likelihood of DAGs becoming inconsistent between Airflow components. This will, however, increase traffic to the remote git repository.

Default Airflow image is updated to 2.5.1 (#29074)

The default Airflow image that is used with the Chart is now 2.5.1, previously it was 2.4.1.

Default git-sync image is updated to 3.6.3 (#27848)

The default git-sync image that is used with the Chart is now 3.6.3, previously it was 3.4.0.

Default redis image is updated to 7-bullseye (#27443)

The default redis image that is used with the Chart is now 7-bullseye, previously it was 6-bullseye.

New Features

• Add annotations on deployments (#28688)
• Add global volume & volumeMounts to the chart (#27781)

Improvements

• Add support for webserverConfigConfigMapName (#27419)
• Enhance chart to allow overriding command-line args to statsd exporter (#28041)
• Add support for NodePort in Services (#26945)
• Add worker log-groomer-sidecar enable option (#27178)
• Add HostAliases to Pod template file (#27544)
• Allow PgBouncer replicas to be configurable (#27439)

Bug Fixes

• Create scheduler service to serve task logs for LocalKubernetesExecutor (#28828)
• Fix NOTES.txt to show correct URL (#28264)
• Add worker service account for LocalKubernetesExecutor (#28813)
• Remove checks for 1.19 api checks (#28461)
• Add airflow_local_settings to all airflow containers (#27779)
• Make custom env vars optional for job templates (#27148)
• Decrease default gitSync wait (#27625)
• Add extraVolumeMounts to sidecars too (#27420)
• Fix PgBouncer after PostgreSQL subchart upgrade (#29207)

Doc only changes

• Enhance production guide with a few Argo specific guidelines (#29078)
• Add doc note about Pod template images (#29032)
• Update production guide db section (#28610)
• Fix to LoadBalancer snippet (#28014)
• Fix gitSync example code (#28083)
• Correct repo example for cloning via ssh (#27671)

Misc

• Update Airflow version to 2.5.1 (#29074)
• Update git-sync to 3.6.3 (#27848)
• Upgrade bitnami/postgresql subchart to 12.1.9 (#29071)
• Update redis to 7 (#27443)
• Replace helm chart icon (#27704)