Application not working after configuring my application with http_proxy environment variable about linkerd-examples HOT 9 CLOSED

Hi @prasenforu, thanks for the writeup. To be clear, are you running istio itself? Or running only the bookinfo app? Are you deploying the bookinfo app using istioctl kube-inject?

Assuming you're running only the bookinfo app, no kube-inject:
It works without http_proxy because the services are talking directly to each other, bypassing linkerd entirely. It's not immediately obvious what the issue is once http_proxy is redirecting to linkerd. I think the hostNetwork of the incoming router should be true, not false. Beyond that, I would check linkerd logs to debug the issue. See https://discourse.linkerd.io/t/debugging-a-linkerd-setup/52

discourse.linkerd.io is where to post if you need more assistance! (github issues are for verified bugs or features.) Thanks!

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Only running bookinfo app. Istio not in use.
Tested with hostNetwork true also for incoming router also but same result.

I checked with only linkerd-cni.yml also but no luck.

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Ok cool, yeah then you'll need to debug your setup further then to figure out why it's not working (eg looking at linkerd logs, metrics, admin dtab ui). Closing this for now. Please post on discourse.linkerd.io if you need more help!

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I wiil post same issue in discourse.linkerd.io.

I am not too much experience in kubernetes, can you please help me how to add -log.level=DEBUG in linkerd yml file for debugging purpose.

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Hey @prasenforu -- you can add it as an additional arg in your linkerd container config in kubernetes. Something like:

     containers:
      - name: l5d
        image: buoyantio/linkerd:1.1.2
        args:
        - /io.buoyant/linkerd/config/config.yaml
        - "-log.level=DEBUG"

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Just for your information, I post this issue in discourse.linkerd.io but looks like spam filter, Akismet, has temporarily hidden my post. So again posting update here.

After debug getting following logs

D 0719 03:24:49.799 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default service reviews found
D 0719 03:24:49.800 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default service reviews port http found + /
D 0719 03:24:49.800 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default initial state: kubernetes, productpage, reviews, l5d, ratings, details, zipkin, zipkin-collector
D 0719 03:24:49.800 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default service l5d found
D 0719 03:24:49.800 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default service l5d port incoming found + /
D 0719 03:24:49.798 UTC THREAD38 TraceId:58746e4545e80cbf: k8s ns default initial state: kubernetes, productpage, reviews, l5d, ratings, details, zipkin, zipkin-collector
E 0719 03:25:04.035 UTC THREAD40 TraceId:261c45c27f88e062: service failure
com.twitter.finagle.NoBrokersAvailableException: No hosts are available for /svc/details:9080, Dtab.base=[/srv=>/#/io.l5d.k8s/default/http;/host=>/srv;/svc=>/host;/host/world=>/srv/world-v1;/host/details=>/srv/details;/host/reviews=>/srv/reviews;/host/ratings=>/srv/ratings], Dtab.local=[]. Remote Info: Not Available

E 0719 03:25:04.057 UTC THREAD41 TraceId:c296d05e0a396e82: service failure
com.twitter.finagle.NoBrokersAvailableException: No hosts are available for /svc/reviews:9080, Dtab.base=[/srv=>/#/io.l5d.k8s/default/http;/host=>/srv;/svc=>/host;/host/world=>/srv/world-v1;/host/details=>/srv/details;/host/reviews=>/srv/reviews;/host/ratings=>/srv/ratings], Dtab.local=[]. Remote Info: Not Available

E 0719 03:25:04.074 UTC THREAD43 TraceId:3d914cc73711c984: service failure
com.twitter.finagle.NoBrokersAvailableException: No hosts are available for /svc/reviews:9080, Dtab.base=[/srv=>/#/io.l5d.k8s/default/http;/host=>/srv;/svc=>/host;/host/world=>/srv/world-v1;/host/details=>/srv/details;/host/reviews=>/srv/reviews;/host/ratings=>/srv/ratings], Dtab.local=[]. Remote Info: Not Available

copied error message /svc/reviews into the path & output as follows.

Looks like dtab section need to edit, though its not clear how to dtab need to to setup based on my application.

Can you please help me to make dtab section based on my application yml file.

Thanks in advance.

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@klingerf

Please help me.

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I marked https://discourse.linkerd.io/t/application-not-working-after-configuring-my-application-with-http-proxy-environment-variable/173 as not-spam, so please continue the conversation there.

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Tnx 😀

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