GitHub user mureco closed a discussion: [Errno 30] Read-only file system:
'/opt/airflow/webserver_config.py/default_webserver_config.py' when
webserverConfigConfigMapName is set
### Official Helm Chart version
1.15.0 (latest released)
### Apache Airflow version
v2.9.3
### Kubernetes Version
v1.30.0+k3s1
### Helm Chart configuration
values.yaml
```
# Airflow webserver settings
webserver:
enabled: true
replicas: 1
webserverConfigConfigMapName: airflow-webserver-config
```
airflow-webserver-config:
```
---
apiVersion: v1
kind: ConfigMap
metadata:
name: airflow-webserver-config
stringData:
webserver_config.py: |-
import os
from __future__ import annotations
from flask_appbuilder.const import AUTH_DB
basedir = os.path.abspath(os.path.dirname(__file__))
log = logging.getLogger(__name__)
WTF_CSRF_ENABLED = True
WTF_CSRF_TIME_LIMIT = None
AUTH_TYPE = AUTH_DB
```
### Docker Image customizations
I use the default image docker.io/apache/airflow:2.9.3
### What happened
When I specify a custom webserver config in my values.yml with
```
webserver:
webserverConfigConfigMapName: airflow-webserver-config
```
the webserver pod gets status CrashLoopBackOff and the pod logging is:
```
[2024-11-12T06:25:56.529+0000] {configuration.py:2090} INFO - Creating new FAB
webserver config file in: /opt/airflow/webserver_config.py
Traceback (most recent call last):
File "/home/airflow/.local/bin/airflow", line 8, in <module>
sys.exit(main())
^^^^^^
File "/home/airflow/.local/lib/python3.12/site-packages/airflow/__main__.py",
line 57, in main
write_webserver_configuration_if_needed(conf)
File
"/home/airflow/.local/lib/python3.12/site-packages/airflow/utils/providers_configuration_loader.py",
line 55, in wrapped_function
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File
"/home/airflow/.local/lib/python3.12/site-packages/airflow/configuration.py",
line 2091, in write_webserver_configuration_if_needed
shutil.copy(_default_config_file_path("default_webserver_config.py"),
webserver_config)
File "/usr/local/lib/python3.12/shutil.py", line 435, in copy
copyfile(src, dst, follow_symlinks=follow_symlinks)
File "/usr/local/lib/python3.12/shutil.py", line 262, in copyfile
with open(dst, 'wb') as fdst:
^^^^^^^^^^^^^^^
OSError: [Errno 30] Read-only file system:
'/opt/airflow/webserver_config.py/default_webserver_config.py'
```
### What you think should happen instead
The content of webserver_config.py should be replaced with the content
specified in the ConfigMap.
### How to reproduce
- Deploy airflow helm chart 1.15.0 on kubernetes v1.30.0+k3s1. All pods will
spin up and airflow is operational.
- Add a ConfigMap containing a custom webserver_config.py
- Update the helm release
### Anything else
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
GitHub link: https://github.com/apache/airflow/discussions/43916
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