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Asked: 2024-09-23T07:58:27+05:30 In:

I am experiencing an issue with my Google Kubernetes Engine (GKE) where the external IP address of my load balancer is not accessible. Despite the service being set up correctly and showing as ‘External’ in the dashboard, I am unable to reach the external IP from my browser or via ping. Has anyone encountered a similar problem and knows how to resolve this? Any troubleshooting tips would be greatly appreciated.

I’m in a bit of a jam with my Google Kubernetes Engine (GKE) setup and could really use some help from anyone who’s faced something similar. I spun up a GKE cluster a while back and everything seemed to be going smoothly until I tried to access the external IP of my load balancer. It’s set to ‘External’ in the service dashboard, and I thought I had it all configured correctly, but now I can’t seem to reach that external IP at all!

I’ve tried accessing it from my browser, and even did a ping – no luck whatsoever. It’s like the IP address just isn’t there. I double-checked the service configuration, and it looks fine to me. The pods are running, and the deployment statuses all report that they are fine. I don’t think it’s a firewall issue on my end because I can access other services just fine. I’ve also verified that my project has the necessary quotas for load balancers.

I even went through the Google Cloud documentation, but nothing seems to point me in the right direction. I did find a mention of ensuring that the load balancer’s backend services are properly configured and that the health checks are passing, but I’m not sure how to verify that. Also, I’m not entirely familiar with how to check if the ingress rules or network security policies might be affecting this.

If anyone has encountered this issue, I would love to hear what you did to resolve it. Any troubleshooting steps, commands, or tips you can share would be super helpful! I’m starting to feel a bit stuck here and could really use the insights of someone who’s navigated this before. Thanks in advance for any advice!

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    2 Answers



    1. GKE Load Balancer Issue

      Help with GKE Load Balancer

      Sounds like you’re having a rough time with your GKE setup! I’ve been there too, and it can be super frustrating. Here are a few things you might want to check:

      • Check Load Balancer Configuration: Make sure your Load Balancer is really set up as you think it is. Sometimes the settings can be a bit tricky. You can use kubectl get services to double-check if the External IP is assigned correctly.
      • Look at the Backend Services: Ensure that the backend services of the Load Balancer are healthy. You can check that by going to the GCP Console, under Network services > Load balancing, and see if the health checks are passing.
      • Health Checks: It’s crucial for your health checks to pass. If they’re failing, that could be why you’re not reachable. You can modify the health check settings if needed and log into the Google Cloud Console to see the status of those checks.
      • Firewall Rules: Even if you think it’s not a firewall issue, it’s worth double-checking. Look in the VPC network section of GCP and make sure you allow traffic on the ports you’re using (like 80/443 for HTTP/HTTPS).
      • Ingress Rules: If you have any ingress resources set up, make sure they are correctly configured. Use kubectl describe ingress to get a look at what’s going on there.
      • Networking Policies: If you’ve set up network policies, those can block traffic unexpectedly too. Make sure you haven’t restricted access inadvertently.

      Hopefully, one of these tips will help you track down the issue. It’s all part of the learning experience, right? Don’t hesitate to dive into the logs of your application as well; they can often give you a hint at what’s going wrong.

      Good luck, and hang in there!



    2. It sounds like you’re dealing with a common issue that can arise with GKE load balancers. First, ensure that your load balancer’s backend services are correctly associated with the service you created. You can check this by running the command kubectl describe service , which will provide details about the service, including the cluster IP, external IP, and the backends. If the external IP is not assigned or is in a “pending” state, it could indicate issues with the backend(s) or health checks. Verify that the health checks for your backend service are configured correctly by navigating to the Google Cloud Console, selecting your load balancer, and checking the health check settings. Make sure that any paths the health checks are trying to reach are indeed returning a success status (HTTP 200).

      If the health checks are passing, the next step is to look into your network configuration, especially if you are using any Network Policies that might restrict the traffic. Ensure that the firewall settings for your GKE cluster allow ingress traffic to the external IP from the expected sources. You can check this using the gcloud compute firewall-rules list command to see current rules and their configurations. Additionally, if you’re using Ingress resources, confirm that the Ingress configuration is properly set up to route traffic to your service. Look for any custom `BackendConfig` that might be associated with your service, as misconfigurations here can also lead to connectivity issues. Finally, checking the logs of your pods using kubectl logs can provide insights into if any requests are reaching your service, which would further narrow down the issue.


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