bluemalkin opened a new issue, #34796:
URL: https://github.com/apache/superset/issues/34796
### Bug description
Upgrading Superset (via Helm chart) from app (image tag) `v4.0.2` to
`v5.0.0` has resulted in broken Reports failing to run.
After checking the upgrade documentation and making the required
adjustments, whenever I run a Report, the Worker node logs shows that fails to
connect to Superset despite setting the required config parameters:
```
FEATURE_FLAGS = {
"ENABLE_TEMPLATE_PROCESSING": True,
"ALERT_REPORTS": True,
"DRILL_TO_DETAIL": True,
"THUMBNAILS": True,
"ENABLE_DASHBOARD_SCREENSHOT_ENDPOINTS": True
}
WEBDRIVER_BASEURL = "http://superset.superset.svc.cluster.local:8088/";
WEBDRIVER_BASEURL_USER_FRIENDLY = "https://superset.domain.com/";
WEBDRIVER_TYPE = "firefox"
WEBDRIVER_OPTION_ARGS = [
"--headless",
"--no-sandbox",
"--disable-dev-shm-usage",
"--disable-gpu",
"--width=1280",
"--height=1024"
]
THUMBNAILS_EXECUTORS = ["admin"]
ALERT_REPORTS_EXECUTORS = ["admin"]
```
The worker node starts fine: `Loaded your LOCAL configuration at
[/app/pythonpath/superset_config.py]`
The error log for the report:
```
[2025-08-21 14:42:02,774: ERROR/ForkPoolWorker-3] A downstream exception
occurred while generating a report: 50d97828-404f-4d16-b693-8f28dbfc90ec.
Failed taking a screenshot Message: Reached error page:
about:neterror?e=connectionFailure&u=http%3A//0.0.0.0%3A8080/login/&c=UTF-8&d=Firefox%20can%E2%80%99t%20establish%20a%20connection%20to%20the%20server%20at%200.0.0.0%3A8080.
```
http://0.0.0.0:8080 is the default `WEBDRIVER_BASEURL` in
`/app/superset/config.py`
Am I missing something with how to correctly configure background celery
process for Reports ?
Thanks
### Screenshots/recordings
_No response_
### Superset version
master / latest-dev
### Python version
3.9
### Node version
16
### Browser
Chrome
### Additional context
_No response_
### Checklist
- [ ] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [ ] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [ ] I have checked Superset's logs for errors and if I found a relevant
Python stacktrace, I included it here as text in the "additional context"
section.
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