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Jumpei Ogawa's questions

Martin Hope
Jumpei Ogawa
Asked: 2016-02-09 22:40:02 +0800 CST
  • 0

I want to connect Cloud SQL from PHP application on GCE instances.

The PHP application cannot connect to Cloud SQL via SSL connection due to old library version.

I'm considering to connect from GCE instance to Cloud SQL instance without SSL. In that case, is data protected from others?

It is OK that exchanged data is accessible inside GCP network. I just want to prevent data leaked to the Internet and acquired by cracker or stranger.

google-cloud-sql
Martin Hope
Jumpei Ogawa
Asked: 2015-11-04 23:29:55 +0800 CST
  • 0

I'm setting up Google Container Engine and have created pods, a resource controller, and a service. However, it never get ready and restarts for many times as follows. (restartPolicy is Always)

$ kubectl get pods
NAME                   READY     STATUS       RESTARTS   AGE
app-production-acg4r   0/1       ExitCode:0   8          5m
app-production-p7njh   0/1       ExitCode:0   8          5m

I followed Kubernetes Application Troubleshooting Guide, but had no luck.

First, I tried kubectl logs, but no output

$ kubectl logs app-production-acg4r app-production
$ kubectl logs app-production-p7njh app-production
$ kubectl logs --previous app-production-acg4r app-production
$ kubectl logs --previous app-production-p7njh app-production

I also tried to run command inside container with kubectl exec. It sometimes returns error:

$ kubectl exec notel-production-uz29p -c notel-production -- ls /var/log
error: Error executing remote command: Error executing command in container: container not found ("notel-production")

and sometimes no response:

$ kubectl exec notel-production-uz29p -c notel-production -- ls /var/log
(No response)

I also confirmed Cluster Troubleshooting Guide.

  • I logged in to a cluster and looked around /var/log/kubelet.log and /var/log/kube-proxy.log but I couldn't find something useful.
  • Restarting clusters made nothing
  • At least GCE persistent disk exists
  • I'm using replication controller and service

I have no idea what I can do any more. How can I investigate this problem? Or is this a Google Container Engine's issue?

kubernetes
Martin Hope
Jumpei Ogawa
Asked: 2015-11-04 21:35:41 +0800 CST
  • 2

I'm running a Google Cloud SQL instance ("mysql-master") and it has one replica. ("mysql-replica") Web apps on another servers read and write data on the Cloud SQL instance.

While mysql-master is restarting, can app servers read and write data?

I want to run gcloud sql instances patch mysql-master, but it sometimes requires the instance to restart. I wonder if web apps can read/write data on the instance while it is restarting.

google-cloud-sql