Currently, the server code snippet is used to determine the user agent to jump to. Strangely, it did not take effect. about ingress-nginx

[k8s-ci-robot]

This issue is currently awaiting triage.

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[longwuyuan]

/remove-kind bug

• This was discussed on slack here https://kubernetes.slack.com/archives/CANQGM8BA/p1710124936093849
• @shaojielinux are you saying that the snippet feature does not work or are you saying that the logic of the if condition does not work ?

/triage needs-information
/kind support

[shaojielinux]

/remove-kind bug

• This was discussed on slack here https://kubernetes.slack.com/archives/CANQGM8BA/p1710124936093849
• @shaojielinux are you saying that the snippet feature does not work or are you saying that the logic of the if condition does not work ?

/triage needs-information /kind support

The logic of the if condition fails

[longwuyuan]

• ok thanks for confirming that the logic fails
• This project wrote the snippet annotation so you can ask here if annotation is broken
• The logic of the if condition is a nginx feature so you are better off if you discuss in nginx forums instead of here
• Wait and see if anyone else has useful comments about that logic
• I already commented that I saw the if condition looks for string so you should debug for the match of the regex and look at the actual header name and actual header value
• Here is a example of similar question https://serverfault.com/questions/865055/nginx-redirect-if-user-agent-contains-xyz
• Just letting you know that reporting here is not a problem but this problem is not related to the ingress controller but its related to the nginx component

[shaojielinux]

I have tried various methods to modify the logic of the if condition, but there has been no change. Currently, I suspect that this code has not taken effect

[longwuyuan]

• First set a random variable like var_test0
• Set its value to random value "randval0"
• Print the var in the logs
• This will confirm that snippet is working
• Now once you are sure that snippet is working, change the logic like below
  • if $http_user_agent contains the string curl then print agentcurl
  • This will prove that if works
• After this add your logic to set a var based on value of $http_user_agent
• I already showed you a example from stackoverflow where the regex work is more sensible and mature but I do not see any of your comments considering the sensibility, maturity and valid relevance of that example

There are not many resources for doing support on issues that are not in the controller code. So thank you for clarification on what the issue is, but don't have high hopes of discussions here. There are more chances that you can get response to your if condition in slack where there are many many developers and experts

[strongjz]

Can you output the full nginx.conf?

[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.

[longwuyuan]

Please re-open the issue when you are reafy to re-engage and move forwardl. For now I will close the issue because there is no tracktion for over a month and the number of open issues are piling up

/close

[k8s-ci-robot]

@longwuyuan: Closing this issue.

In response to this:

Please re-open the issue when you are reafy to re-engage and move forwardl. For now I will close the issue because there is no tracktion for over a month and the number of open issues are piling up

/close

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