SSH connection refused for Google App Engine VM instance

1
votes

I have deployed a flask application on a google app engine VM instance. Everything was going fine, I was editing my code locally, then deploying and debugging by looking at the logs, but after my last deployment, I am seeing the following error when I try to open the app in a browser:

Error: Server Error

The server encountered a temporary error and could not complete your request.

Please try again in 30 seconds.

Also, I am now unable to ssh into my App engine VM instance. Whenever I try to ssh, I get the following error:

port 22: Connection refused

(I was able to ssh into this VM earlier).

Now, I have a VPC network, which has the default firewall rules for allowing ssh ports. There is a section in the cloud platform dashboard where I can create firewall rules for App engine, but it is only for allowing IP addresses, and not ports (regardless, I have added my IP address in this firewall rule).

I also get the same error when I try to SSH through the web cloud platform dashboard.

Most of the related pages on StackOverflow I found about this error are people not being able to SSH into compute engine VMs. I'm stuck and have no idea what to do to be able to SSH into my App Engine VM.

I am also not seeing any logs when I use the "gcloud app logs read" command.

Edit: Following are my App Engine firewall rules :

enter image description here

Following are the firewall rules for my VPC network:

enter image description here

1
google-app-enginesshgoogle-cloud-platform
Can you go to console.cloud.google.com and see if you can ssh in from there? See cloud.google.com/appengine/docs/flexible/go/… – user835611
It sounds like it might be a firewall problem though. Are you sure you whitelisted your IP rather than block it? Maybe a conflicting rule with higher priority? – user835611
Going to App Engine → Versions there is a list with last deployed versions. Can you access the logs selecting Tools → Logs? Try also to stop the current deployment and start an old one that you know was working, just to see if it still works. Firewall rules look fine to me but you can define the port in them in step 11 following this guide. – Rubén C.

1 Answers

0
votes

Sounds like a firewall problem if you can't ssh in from the Cloud Console. Can you post your firewall rules?