[Feature request] Add more info to output before error: "There are still unapplied migrations after 60 seconds."

[patsevanton]

Hello! Thanks for airflow!
Please Add more info to output before error: "There are still unapplied migrations after 60 seconds."

Code

airflow/airflow/utils/db.py

Line 617 in eae22ce

raise TimeoutError(f"There are still unapplied migrations after {ticker} seconds.")

Feature request from issue #15340

[kaxil]

Like I mentioned in #15340 -- Migrations are run in a different container

airflow/chart/templates/migrate-database-job.yaml

Lines 21 to 33 in 54adc44

	{{- $nodeSelector := or .Values.webserver.nodeSelector .Values.nodeSelector }}
	{{- $affinity := or .Values.webserver.affinity .Values.affinity }}
	{{- $tolerations := or .Values.webserver.tolerations .Values.tolerations }}
	apiVersion: batch/v1
	kind: Job
	metadata:
	name: {{ .Release.Name }}-run-airflow-migrations
	labels:
	tier: airflow
	component: run-airflow-migrations
	release: {{ .Release.Name }}
	chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
	heritage: {{ .Release.Service }}

^^ It is run via Kubernetes Job and name of container is run-airflow-migrations.

Whereas scheduler and Webserver pods have an init-container that just wait for the migrations to be applied:

https://github.com/apache/airflow/blob/master/chart/templates/scheduler/scheduler-deployment.yaml#L97-L107